| Names | |
|---|---|
| Preferred IUPAC name | poly(1,3-butadiene) |
| Other names | Butadiene Rubber BR Polybutadiene Cis-1,4-Polybutadiene |
| Pronunciation | /ˌpɒl.i.bjuː.təˈdaɪ.iːn ˈrʌb.ər ˌbiː ɑː ˈnaɪn ˈθaʊ.zənd/ |
| Identifiers | |
| CAS Number | 9003-17-2 |
| Beilstein Reference | 1771584 |
| ChEBI | CHEBI:53251 |
| ChEMBL | CHEMBL1656703 |
| ChemSpider | 21285918 |
| DrugBank | DB14105 |
| ECHA InfoCard | ECHA InfoCard: 100.029.569 |
| EC Number | 232-691-2 |
| Gmelin Reference | 14653 |
| KEGG | C16239 |
| MeSH | Polybutadiene |
| PubChem CID | 11024805 |
| RTECS number | EY9275000 |
| UNII | 8ZZO6FZ4A3 |
| UN number | UN 2207 |
| CompTox Dashboard (EPA) | DTXSID6020176 |
| Properties | |
| Chemical formula | (C4H6)n |
| Molar mass | 54.09 g/mol |
| Appearance | Appearance: Light-colored or colorless rubbery solid |
| Odor | Mild rubber odor |
| Density | 0.91 g/cm³ |
| Solubility in water | Insoluble in water |
| log P | 5.66 |
| Vapor pressure | Negligible |
| Acidity (pKa) | 12.32 |
| Refractive index (nD) | 1.520 |
| Viscosity | Viscosity: "47 mPa.s |
| Dipole moment | cis-1,4 = 0.37 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 155.0 J/(mol·K) |
| Std enthalpy of formation (ΔfH⦵298) | -238.7 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -6297 kJ/mol |
| Pharmacology | |
| ATC code | 3911.10.00 |
| Hazards | |
| GHS labelling | GHS02, GHS07 |
| Pictograms | SGAH |
| Signal word | Warning |
| Hazard statements | H412: Harmful to aquatic life with long lasting effects. |
| Precautionary statements | Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Avoid release to the environment. Dispose of contents/container in accordance with local/regional/national/international regulations. |
| NFPA 704 (fire diamond) | 2-1-0 |
| Flash point | >300°C |
| Autoignition temperature | > 335°C |
| Lethal dose or concentration | Lethal dose or concentration: LD50 (oral, rat) > 5000 mg/kg |
| LD50 (median dose) | > 5000 mg/kg (rat, oral) |
| REL (Recommended) | ISO 248 |
| IDLH (Immediate danger) | Unknown |
| Related compounds | |
| Related compounds | Styrene-Butadiene Rubber (SBR) Polyisoprene Rubber (IR) Natural Rubber (NR) Nitrile Butadiene Rubber (NBR) Chloroprene Rubber (CR) Acrylonitrile Butadiene Styrene (ABS) Ethylene Propylene Diene Monomer (EPDM) Butyl Rubber (IIR) |
This reference covers the chemical identification of Polybutadiene Rubber, manufactured as BR9000 grade through solution or emulsion polymerization. All information reflects practices and observations from chemical production, raw material management, and technical documentation relevant to manufacturing plants engaged in bulk elastomer output.
| Property | Manufacturer’s Technical Commentary |
|---|---|
| Product Name | Polybutadiene Rubber (BR9000) |
| IUPAC Name | Poly(buta-1,3-diene) |
| Chemical Formula | (C4H6)n |
| Synonyms & Trade Names | Production and sales teams reference this material under aliases such as Butadiene Rubber, BR9000, and in some technical markets as PBD or Buna-B. Trade naming often shifts with customer application, especially for tire, footwear, and rubber goods industries. Synonyms in customs documentation should follow the major polymer designation to avoid confusion across regulatory borders. |
| CAS Number | 9003-17-2 |
| HS Code & Customs Classification | Typical customs code adopted for export and import declaration relates to non-cellular synthetic rubber. Many jurisdictions use 4002.20.xx as the base HS code for Polybutadiene. For BR9000, exact sub-codes depend on further processing status and destination region’s customs system (granule, bale, or sheet). Classification must always align with declared composition, especially regarding copolymer content or compounded grades. |
Consistency in naming and code assignment supports customs clearance and downstream certification. Production staff verify CAS and formula records against batch process logs at every release, reinforcing traceability. Customs officials may request both technical and trade names; plant logistics teams supply supporting composition documentation for each international lot. Misdeclaration of trade names or incomplete HS coding leads to cargo hold or reclassification, driving the need for detail-focused export documentation from the plant technical office. Grade-specific documentation is required for differentiated customer use cases and composite product blends—retail or consumer-specific blends require additional labeling per downstream requirements.
In our plant, BR9000 is manufactured as solid rubber blocks, typically pale to light yellow in color, free from any significant odor due to well-controlled finishing lines. Form, color intensity, and surface characteristics often reflect stabilizer selections and finishing technique. Process engineers check for inhomogeneities or off-color pieces, which may indicate process deviations, contamination during finishing, or abnormal aging.
Polybutadiene rubber does not exhibit a sharp melting point; it softens progressively through the glass transition, which varies depending on the microstructure (cis/trans/vinyl ratio) engineered during synthesis. Process control teams monitor the thermal profile to ensure processability for tire, golf ball, or impact modifier applications.
Measured density values in our BR9000 lines typically fall within a range set for specific grades, influenced by the molecular architecture and ash content. Off-standard densities signal residual solvent, high gel content, or inorganic contamination and prompt additional analytical checks in QC.
Butadiene polymers are unsaturated and readily oxidize under heat, light, or ozone. This has direct consequences on storage protocols, antioxidant/stabilizer packages, and packaging designs. Quality assurance and technical staff carefully monitor samples for early signs of peroxide, aldehyde, or gel formation, especially for grades meant for tire tread compounds that require long service life.
Solubility varies with molecular weight and microstructure. Technical teams rely on cyclohexane or toluene for solution viscosity testing, impurity profiling, and product modification steps. Operators recognize that overly high gel content impairs solution prep and points to process drift or catalyst metering errors.
BR9000 grades are specified by parameters such as Mooney viscosity, microstructure percentages, volatile matter, ash content, and gel fraction. Commercial and custom grades offer tailored profiles depending on downstream requirements in tires, plastics, or adhesives. Technical support issues certificates of analysis that reflect buyer-specific testing protocols and spec limits.
Common industry practice tracks residual monomer, oligomers, catalyst residues, volatile organic solvents, and water content. Levels depend on purification efficiency, process stability, and grade intent. Customers with high-performance applications, such as solution styrene-butadiene rubber (SSBR) blending, request tighter impurity limits.
Laboratories use Mooney viscometry, FTIR for cis/trans ratio, GPC for molecular weight, and solvent extraction for gel content. Standard operating procedures are based on established national and international test standards, selected according to contract requirements or regional regulations.
Feedstock quality shapes overall process performance. We insist on low-inhibitor 1,3-butadiene with routine impurity checks for acetylenes, peroxides, and moisture. Solvents and catalysts are sourced on technical merit—catalyst suppliers must provide batchwise quality verification due to their influence on product microstructure.
Industrial lines rely on solution or emulsion polymerization, with solution processes favored in our BR9000 production due to greater microstructure control. The choice of initiator and modifier decides polymer chain regularity and branching. Reaction temperature, pressure, and residence time are tightly regulated by DCS and line operators to produce the contracted cis/trans ratio.
Purification removes catalyst residues, unreacted monomers, and low molecular weight byproducts. We use multi-stage stripping, vacuum-drying, and antioxidant dosing, with continuous process monitoring. Engineers track each stream for organic and inorganic contaminants to ensure compliance.
Batch release follows internal and customer-defined release criteria. Inspectors frequently pull in-process and final samples for spec checks, and only batches meeting all contracted values (viscosity, composition, VOCs, gel content) move to finishing and packaging.
Polybutadiene reacts readily through its double bonds. Manufacturers modify BR9000 via epoxidation, hydrogenation, or grafting (e.g. with maleic anhydride) for producing impact modifiers or improving oil resistance. Process engineers consider temperature, solvent, and catalyst compatibility for such reactions to prevent crosslinking or degradation.
Typical functionalization employs transition metal catalysts or organic peroxides, with reaction temperatures and times calibrated according to target conversion and product stability. Technical staff review lots for over- or under-modification, especially in critical downstream blends.
Industrially, BR9000 is blended with natural rubber or SBR for tire tread, used in impact polystyrene (HIPS), or modified into thermoplastic elastomers. Each application segment requests very specific property tuning, so grade selection and in-process troubleshooting remain ongoing tasks.
Polybutadiene grades require dry, cool, and light-protected storage. Prolonged exposure to heat, high humidity, or sunlight enhances peroxide and gel formation, especially in lower-stabilizer grades. Technical and logistics teams inspect incoming and in-use lots for caking, discoloration, sticky surfaces, or loss of elasticity as signs of improper storage or aging.
Packaging typically involves polyethylene-lined boxes or bags to prevent contamination and minimize migration of antioxidants. Logistics teams note that product-to-container incompatibility may cause sticking or extractable contamination detectable in final-use tests.
Shelf life is influenced by stabilizer system, grade, storage agentry, and intended application. Product managers flag blocks with visible cracking, odor change, or loss of mechanical integrity before shipment release.
BR9000, as an industrial polymer, does not exhibit acute toxicity hazards typical of its monomer. Safety teams prioritize dust hazard management in cutting and handling, as well as minimization of residual solvent vapors. Worker safety materials note chronic exposure concerns trace to monomer and solvent residues, prompting workplace air monitoring and engineering controls.
Occupational exposure risks relate to unreacted butadiene and process solvents. Handling guidelines recommend enclosed systems, proper ventilation, and personal protection during handling and processing. Training programs and standard operating procedures address safe material movement, spill management, and first aid response for suspected overexposure.
Manufacturing output for BR9000 follows planned plant maintenance cycles and feedstock scheduling. Output efficiency strongly depends on the operational stability of the butadiene extraction unit and the ability to source high-purity butadiene. Current annual capacity is allocated based on long-term offtake agreements and prioritized for established downstream partners in tire and rubber compounding sectors. Allocation flexibility gets impacted by planned expansions and downstream integration. Scheduling for spot cargos is closely tied to in-process inventory and market balance.
Lead times remain sensitive to batch slot assignments, seasonal demand spikes, and logistics constraints. Typical production release for standard BR9000 grades aligns with a 2 to 4-week notification window, adjusted by plant changeover cycles and process optimization protocols. MOQ depends on product form (bale or pellet), grade, and shipping mode. Specialty or non-standard gradations may require consolidated minimum runs to minimize off-grade material risk and streamline batch changeovers.
BR9000 is supplied in bale or pellet forms, packed according to the requirements set by grade and application. Packaging materials range from polyethylene film to lined cardboard boxes and steel containers for bulk shipments. Selection criteria consider contamination risk, block adhesion, and storage duration. Long-haul or export shipments may require specially treated liners or vacuum-sealed options to prevent oxygen ingress and caking.
Standard Incoterms apply, with ex-works, FOB, and CIF regularly used for bulk or containerized cargo. Payment terms are set by buyer credit status and supply relationship duration. Pre-shipment inspection and third-party sampling can be arranged at the buyer’s request, subject to process scheduling. All logistics arrangements account for the product's temperature sensitivity, protection from overexposure, and compliance with regulatory transport codes.
Main input cost drivers for BR9000 are butadiene purity and price, catalyst system selection, and energy inputs during polymerization and finishing. Feedstock price volatility arises from naphtha and crude oil market swings, which cascade into butadiene contract and spot pricing. Domestic procurement may provide partial insulation, but global arbitrage frequently shifts sourcing economics.
Butadiene availability undergoes cyclical stress due to cracker maintenance schedules, shifts in propylene demand, and regional imbalances in refinery output. Seasonal demand for automotive and tire manufacturing generates further price distortion, especially where short-term spot needs outpace installed production capacity. Feedstock logistics interruptions, production slowdowns, and regulatory changes also feed into cost unpredictability.
Pricing stratifies by grade, purity, and specific end-use requirements. High-purity and fine-molecular weight grades used for high-performance tire compounds command a premium due to narrow production margin and stringent impurity control. Packaging impacts final price, as export-compliant or specialty bulk containers increase per-unit costs. Certification—such as ISO or specific regional standards—creates price tiers, as certified batches require extra documentation, independent sampling, and traceability audits.
BR9000’s global supply remains concentrated in major petrochemical hubs. China and the United States account for significant output, with Europe, Japan, and India contributing regionally. Demand is heavily weighted toward tire manufacturing, technical rubber goods, and diverse compounding industries. Short-term market tightness typically follows feedstock volatility and downstream sector shifts.
The US and EU maintain stable demand with modest growth anchored by automotive and transportation sectors. Japanese manufacturers favor consistency over expansion, often locked into long-term contracts. Indian demand grows at a robust pace, driven by emerging industrialization and substitution for natural rubber in cost-sensitive segments. China continues to shift supply balance through capacity additions and internal demand, disrupting regional trade flows when local surpluses emerge.
Industry experts expect moderate upward pressure through 2026, tracking energy markets and process cost inflation. Capacity expansions in Asia and targeted technological investments may dampen extreme peaks. Feedstock rationalization and strategic plant upgrades in the US and EU provide some supply buffer. Polarization between high-specification and commodity grades could widen the price spectrum, especially if new regulatory criteria or green procurement standards emerge.
Price forecast models reference trade association data, leading industry reports, published contract settlements, and spot price tracking from active traders and market participants. Market assessments derive from internal sales trend analysis, feedback from major downstream partners, and process cost structure reviews.
Recent capacity announcements in Northeast Asia signal further supply-side competition. Policy shifts in key economies, such as tightened emissions regulations and mandates on material traceability, influence demand for compliant grades. Ongoing innovation in tire technology and sustainability initiatives push requirements for advanced-performance BR grades.
Globally harmonized standards increasingly define purity levels, traceability, and allowable additive content in rubber products. Regulatory requirements for product safety, especially in automotive applications, require tighter batch documentation and third-party compliance audits.
In response, manufacturing adjusts purification strategies, invests in real-time in-process control, and steps up impurity detection. Batch consistency relies on predictive analytics calibrated to process history and raw material input benchmarks. Suppliers continuously engage with certification bodies and customer audit teams to meet evolving compliance obligations and provide transparent sourcing documentation.
Polybutadiene Rubber (BR9000) forms a core raw material in automotive tires, footwear, conveyor belts, and mechanical components. In tire applications, BR9000 provides abrasion resistance and flexibility under low temperatures, supporting performance and durability targets set by OEMs and global tire standards. Shoe sole manufacturers rely on its high resilience and impact absorption, focusing on achieving targeted hardness and rebound properties after compounding. For rubber rollers and belts, BR9000 balances dynamic fatigue resistance with processability, which directly impacts equipment lifetime and product consistency.
| Application | Typical BR9000 Grade(s) | Key Considerations |
|---|---|---|
| Passenger & Truck Tires | Low-cis, High-cis, Solution grades | Molecular weight, cis content, gel level, microstructure consistency |
| Footwear Soles | Medium-cis, High-cis grades | Processing viscosity, wear resistance, oil/UV stability |
| Conveyor/Transmission Belts | High-cis, Specialty compounding grades | Fatigue resistance, tear strength, dynamic heat buildup control |
| Rubber Rollers (Printing/Textile) | Solution, Linear grades | Purity, color stability, controlled gel content |
Grade selection should always consider the targeted microstructure (cis-1,4, trans-1,4, vinyl content) since this drives elastic modulus, resilience, and cold flexibility. In tire manufacturing, variations in gel content and molecular weight distribution impact both mixing and extrusion uniformity; the narrower the distribution, the more predictable the end properties. For consumer rubber products, color stability and extractable levels become important, and manufacturers often request grades with controlled non-rubber impurity levels.
Impurity content—including residual catalyst fragments and ash—differs depending on process route (solution, emulsion), catalyst system, and grade specification. Where batch-to-batch consistency matters, such as in tire compounding, strict in-process control on molecular weight, microstructure, and volatiles limits downstream variation, reducing rework rates and production off-spec.
Start by clarifying the end-use requirements including durability, wear, resilience, color, and dimensional tolerances. Tire producers typically specify rolling resistance, cut growth, and wet traction. Mechanical goods makers focus on compression set and hysteresis.
Determine relevant regulatory and customer-driven requirements. These affect restrictions on PAH extracts, migration limits, and FDA or REACH status. For export-oriented products, destination-country directives can require verified compliance with product safety, labeling, and reporting standards.
Assess which impurities must be controlled tightly. Shoe or automotive manufacturers with sensitive consumer or performance items usually call for lower volatile content and restrict trace metals or polymerization byproducts. The purification approach and QC testing protocols are aligned with these priorities, adjusting filtration, devolatilization, or additive treatment in production.
Production scale affects both batch size preference and cost. High-volume tire makers often require bulk, homogenized grades for continuous mixing; specialty users request smaller, well-documented lots. Customization, secondary processing, and logistics considerations enter at this evaluation stage.
Companies moving to a new grade or supplier should obtain a sample for compounding and performance validation. Bench trials assess compatibility with existing formulations, mixing profiles, and end-use properties. Outcomes from actual line runs drive final grade confirmation and joint technical alignment on specifications.
Production of Polybutadiene Rubber (BR9000) relies on well-established management systems. Internal and external audits form a routine part of quality oversight. Certification to ISO 9001 represents the facility’s approach to controlled documentation, traceability, process verification, and staff qualification. Some production lines pursue additional regional standards according to market demand, and regular program reviews maintain alignment with evolving regulatory guidelines.
Polybutadiene Rubber for tire, industrial, or polymer modification uses often triggers customer audits tied to specific OEM requirements. Industry-recognized product testing protocols (for example, those outlined in relevant ASTM or ISO rubber testing standards) guide property measurement and conformity checks. Depending on export and regional application, additional certification may be required to address health, safety, or purity standards specific to local jurisdictions, initiated through customer specification review and agreement.
Each batch of BR9000 receives a release report including results from routine analyses such as Mooney viscosity, volatile content, and ash determination. Detailed Certificates of Analysis (CoA) are issued per lot according to customer contract, matching agreed specification and test frequency. Extended reports, including safety data or formulation and impurity risk profiles, are available on request and adapt to downstream processor or OEM audit policies. Change notifications are formally communicated to sustain customer qualification validity for long-term supply contracts.
Sustained manufacturing relies on multi-line production units within the same complex, backed by on-site utilities and raw material stock. Production runs are scheduled to maximize equipment uptime and accommodate sudden demand surges. For customers with irregular or development-scale requirements, cooperative planning includes partial-volume contracts and spot procurement, subject to lead time and backlog review.
The BR9000 line draws butadiene monomer from captive cracking units to limit feedstock volatility impact. Key process steps—from polymerization to coagulation and pelletizing—undergo continuous automation and operator-reported batch result journaling. Production tracking systems support root cause identification in the event of any deviation. A rolling inventory buffer remains available to bridge short-term logistic disruptions and maintain dispatch timeliness, especially during major plant turnarounds or peak regional demand periods.
Sample allocation for BR9000 follows a structured request review based on intended end-use, regional regulatory environment, and volume class. Technical staff evaluate application and suggest matching grade. Approval triggers a documented dispatch, with follow-up technical feedback mechanisms to collect application and formulation outcomes from the customer’s technical team.
Engagement with procurement partners adapts to the scale and specificity of their operations. Long-term supply agreements benefit from joint production scheduling and forecast sharing. For R&D-scale projects or periodic usage, the manufacturer remains open to batch splits, alternate shipment frequency, and temporary warehousing support. Multi-party contracts supporting further processing, tolling, or regional blending are managed via project-specific agreements, formalized through unambiguous allocation schedules and milestone-based supply commitments.
Formulation improvement has become a primary focus. The industry is tracking microstructure control through catalyst modification and feedstock purity. Field data confirms that regulator selection during solution polymerization directly determines cis-1,4 content and cold flexibility. Customer requests highlight the need for consistent processability across tire, shoe sole, and impact-modifier applications. Modern research pays close attention to optimizing branching control, targeting specific Mooney viscosity bands and molecular weight distribution to meet downstream vulcanization requirements.
Demands for low rolling resistance and enhanced abrasion resistance are shaping new product development. Customers in tire and automotive sealing segments seek Polybutadiene grades with modified Tg and improved dispersion of carbon black or silica. Some grades serve as impact modifiers in ABS or PS, with R&D focused on improving rubber particle size uniformity during blending. Hydraulic hose, golf ball core, and sports surface suppliers stress the need for tighter gel content management and predictable elastic response over a range of temperatures.
Technical hurdles often arise from the need to balance molecular weight uniformity with production efficiency. By-product formation during solution and emulsion processes depends on monomer feed rates, temperature uniformity, and reactor hygiene. Grades tailored for high-cleanliness require extra measures, including continuous purification and filtration, to control residual monomer and microgels. Process improvement studies show that advanced mixing protocols and precision thermal control reduce variance between production lots. Recent breakthroughs in on-line characterization are helping to stabilize product specifications for national and export customers with critical performance demands.
Growing electric vehicle and consumer goods demand signals moderate volume growth for Polybutadiene Rubber, especially for grades with low rolling loss and improved resilience. Downstream partners show continued interest in localizing supply chains, amplifying the significance of predictable lead times and country-specific compliance documentation. Technical teams now dedicate resources to support new launching facilities and to harmonize product grades for multinational customers with multi-plant integration projects.
Close collaboration with catalyst manufacturers drives process upgrades, focused on fine-tuning microstructure and reducing unwanted chain-ends. Transition to digitalized process control is allowing for tighter in-process monitoring, supporting better batch-to-batch consistency. Engineered additives, especially coupling agents for silica compounding, are giving product developers direct levers to tune dynamic properties. Process improvements at the manufacturing floor level continue, especially in solvent recovery, multi-stage stripping, and waste minimization. The transition between different grade runs is coordinated by advanced scheduling and dedicated cleaning cycles, which directly reduces cross-grade contamination risk.
Recycled raw material streams receive increasing attention, but constraints exist around feedstock traceability and impurity carryover. Life cycle analysis guides new product development, especially when qualifying grades for automotive and white goods. Research efforts support lowering volatile organic compound content, using higher-purity 1,3-butadiene sources, and capturing unreacted feedstock for downstream application or safe disposal. Manufacturers are establishing routines to trace hazardous by-product precursors and share this data with downstream customers for regulatory documentation. Sustainable production also extends to water reuse, energy efficiency audits, and minimized atmospheric release as part of corporate responsibility targets.
Technical consultations address product adjustment for customer-specific processing needs. Polymer structure, microgel content, and heat stability underpin most interaction questions. Manufacturing experts analyze performance feedback from end-users, review compounding recipes, and make recommendations suited for conventional and advanced mixing lines alike. Field engineers gather process data on customer sites, particularly where consistency in curing, dump temperature, or flow in calendering steps is critical to finished part performance.
Supporting downstream process optimization involves in-house compounding trials, where new grades are tested for compatibility with established filler systems. Guidance centers on compounding sequence, mixing regime adaptation, and troubleshooting scorch or reversion issues that may originate in the base polymer. Direct feedback from production lines, informed by in-process viscosity, tack, and gel performance, helps adjust grade selection or recommend handling changes. Experts make site visits for equipment audits and train plant personnel in process adjustments to improve operational stability and minimize off-spec product.
The technical support team offers follow-up evaluation for any reported grade variability or special application needs that emerge after product delivery. Standard practice includes batch traceability back through the manufacturing process, lot-specific quality data, and case-specific investigation where downstream process incompatibility is reported. Response protocols ensure direct line to both R&D and manufacturing, shortening the loop for root cause analysis and solution rollout. Commitment covers support for regulatory queries, document provision per customer regions, and ongoing partnership for product trials aimed at process improvement or transitions to upgraded grades.
Our facility manufactures high-grade Polybutadiene Rubber (BR9000) to support industrial sectors that demand consistent material properties and reliable supply chains. Production starts with carefully selected feedstocks, processed through precise polymerization systems. Every batch undergoes real-time monitoring and in-line testing to deliver a polymer with controlled molecular weight and cis-content, supporting its critical use in downstream applications.
BR9000 finds extensive use across tire manufacturing, footwear, conveyor belts, V-belts, and impact-resistant plastic blends. Tire producers rely on our BR9000 for tread and sidewall compounds, targeting rolling resistance, abrasion wear, and low-temperature resilience. Producers of rubber goods—including hoses, gaskets, and seals—use BR9000 to extend product life under dynamic mechanical stress. In footwear, BR9000 balances cushioning and durability for sports and industrial soles. Engineers in the plastics sector combine it with polystyrene and ABS, seeking to boost toughness in molded goods.
Customers depend on every shipment to match rigorous technical requirements for critical processes. Quality control starts with documented batch traceability and extends to full-scale analytical testing. Properties such as Mooney viscosity, gel content, and ash content receive certification against established quality benchmarks. No batch leaves the facility without full compliance verification. Periodic audits and process review sustain long-term stability while continuous improvement projects target further reduction of off-spec incidents.
BR9000 ships in multiple packaging formats as needed for downstream integration—bales wrapped in protective film, bulk containers for high-volume processors, as well as palletized units for efficient warehouse handling. In-house logistics teams oversee warehousing and load planning, optimizing lead times for recurring orders and large-scale projects. Facilities hold contingency stock to absorb short-term market swings. Throughout bulk and regular delivery cycles, the company manages the flow from production line to client dock, aiming for secure and punctual arrival.
Process engineers and technical teams regularly consult with our polymer specialists to address elastomer selection, compounding adjustments, and troubleshooting. Support extends to lab-scale formulations and pilot tests, along with on-site technical visits for process optimization. Decades of experience in polymer science and application engineering provide direct solutions to compound development, scale-up, and end-use testing—cutting down development timelines for manufacturers seeking to accelerate project launches.
Direct access to a qualified producer brings supply chain transparency and actionable cost visibility. Manufacturers secure year-to-year supply underpinned by accountable production schedules and rapid response to changes in demand. Distributors benefit from reliable forecasts, batch-level documentation, and packaging adapted for further transfer in B2B channels. Procurement professionals gain leverage in supplier management through established pricing and technical support, improving cost planning over project cycles.
BR9000 sits at the core of multiple industry supply chains that require more than standardized commodity supply. The manufacturer’s commitment to technical rigor, packaging flexibility, and close collaboration with industrial partners equips commercial buyers to meet evolving market pressures. By controlling the full production cycle, we offer solutions anchored in practical engineering, logistical precision, and operational reliability.
As a direct manufacturer of Polybutadiene Rubber, commonly tagged as BR9000, we work hands-on with the technical details of our product every day. Engineers, QA, and production staff rely on stable, reproducible physical and mechanical profiles to support everything from tire factories to sports equipment producers.
Mooney viscosity serves as a quick health check in our process line. For BR9000, we measure viscosity using the ML(1+4) at 100°C method. Typical values from our batches run between 44 to 52. This range reflects polymer chain length and branching, influencing compound processability. In practical terms, a Mooney viscosity in this bracket lets users mix BR9000 smoothly with fillers, oils, and other rubbers. Too much viscosity and processing stalls out, too little and shape retention drops. We track every batch to ensure stable viscosity because fluctuation disrupts downstream consistency for compounding and molding.
Tensile strength and elongation matter on factory floors. For BR9000, standard tensile strength lands above 17 MPa when tested to ASTM D412 or similar protocols. High tensile strength means finished goods hold up to mechanical stress — essential for tires, conveyor belts, and impact-resistant items. Elongation at break for our BR9000 typically reaches above 400%, balancing flexibility and resistance to rupture. This profile fits requirements for low-temperature resilience and fatigue resistance, qualities often tested in dynamic applications.
Polybutadiene owes its strong reputation to resilience. With rebound values around 70% and abrasion loss in the lower range (measured on Akron or DIN protocols), our compound retains bounce and outlasts many standard elastomers. We keep a sharp eye on the microstructure—maintaining high cis-content above 96%—which underpins cold flexibility and rolling resistance performance. Rubber products made from our BR9000 carry lower heat build-up under high-frequency flexing, reducing breakdown and extending product lifespans.
In the compounding room, uniform mixing and extrusion are non-negotiable. BR9000 carries a gel content typically below 1% by our own consistent process, helping prevent hard spots in finished goods. Our own feedback loops between QC and polymerization allow us to target a processing window optimal for tire tread, shoe soles, and technical rubber parts production alike. This means fewer process disruptions down the chain and improved batch-to-batch reliability.
Customers repeatedly highlight stable Mooney viscosity, high tensile strength, and robust resilience as core reasons they return for our BR9000. Our technical team tracks each production lot, logging every data point. We offer in-depth support for customers scaling up or automating new production lines. For users facing strict quality checks—such as global tire OEMs—our consistency supports their compliance and certification cycles. When compounders tackle issues such as low-temperature flexibility, our BR9000’s microstructure delivers practical, test-based solutions, not just claims on paper.
We know that demands for higher performance never rest. In response, our R&D team regularly tweaks polymerization conditions and filtration systems to drive improvements in green strength, gel management, and processing ease. Our real-world feedback from manufacturing partners guides these cycles, keeping BR9000 finely tuned for today’s and tomorrow’s mechanical property needs. We ensure that every lot meets the practical requirements of factories counting on us for direct, reliable supply, process transparency, and proven mechanical performance.
As a direct manufacturer, our focus is always on achieving consistency and efficiency in every batch of Polybutadiene Rubber BR9000. Small batch runs create significant setup and logistical overhead, which is why we set the minimum order quantity at 16 MT, matching our standard full-container load. This quantity ensures our reactors operate at optimal efficiency, minimizes production waste, and gives our partners stable cost structures. Historically, this MOQ also allows downstream rubber processors enough raw material for meaningful production planning, whether it’s for tire manufacturing, footwear, or automotive parts.
MOQ is more than just an arbitrary number. Each changeover in our production line means time lost reconfiguring equipment, performing quality checks, and cleaning tanks. By grouping orders into sizable batches, we significantly reduce risks of cross-contamination, shipping delays, and inconsistent viscosity control.
Raw materials like butadiene monomer have storage and handling requirements that complicate small-batch manufacturing. With a minimum order, we manage these logistics effectively, avoiding excessive holding costs and minimizing interruption in downstream processing. This approach benefits end-users with more consistent physical and mechanical properties.
Lead time for BR9000 generally ranges from 18 to 25 days from the point of approved downpayment and finalized specifications. This window takes into account several fixed steps:
While port congestion and public holidays may add extra days, our teams maintain close communication with logistic partners to anticipate such events and keep actual lead times as short as possible. Early order planning can help prevent bottlenecks, especially during peak seasons when demand for synthetic rubber surges worldwide.
Clients working with six-month or annual forecasts often achieve the best outcomes by slotting their BR9000 orders into our scheduled production windows. This approach not only locks in stable raw material pricing but also secures production slots—particularly vital for customers with tight downstream delivery schedules.
Our technical team can provide detailed process guidelines and shelf-life management tips to help reduce excess inventory at your end. Rubber processors with customized requirements—such as tailored oil-extended grades or non-standard bale weights—should get in touch early, since these variants may impact both lead time and optimal batching.
We stand behind straightforward communication on order timelines and batch sizes. Over the years, we have learned that clear expectations reduce costly surprises on both sides. Our sales and QA teams remain engaged until each order ships, providing full traceability and technical documentation upon request.
Long-term partners repeatedly tell us: predictable lead times and consistent minimum orders allow them to plan confidently, control costs, and retain their own customers. By manufacturing BR9000 in-house and managing our supply chain directly, we minimize risk and keep promises made to every customer.
As the direct manufacturer of Polybutadiene Rubber (BR9000), we constantly navigate the practical realities of high-volume, international logistics. Customers count on secure delivery without product degradation, regardless of destination or climate. Choosing the right packaging and handling every step of the shipping process in-house, we commit to more than simple compliance—we put product integrity and safety first.
We prepare our BR9000 for bulk transport using multiple tested formats. Standard packaging involves sealed PE-lined containers—commonly, 35 kg or 1,000 kg net weight bags and super sacks. This prevents contamination from environmental moisture or atmospheric oxygen. Tear resistance and stack stability remain priorities since these materials often see rough handling during long transits. In regions with higher humidity or temperature swings, we reinforce our pallets with shrink wrap and edge protection, minimizing risk of deformation or block shift that could lead to shipment rejection or accidents during unloading.
Polybutadiene rubber, while not classified as a hazardous cargo under most transport regulations, still requires meticulous documentation from our shipping department. We supply a full shipping set: bill of lading, commercial invoice, detailed packing list, and Certificate of Analysis for each batch. We attach the safety data sheet to every shipment, ensuring transporters and end-users have instant access to technical and handling information. Any cross-border consignment ships with an export customs declaration and certificate of origin. Our teams coordinate directly with freight forwarders to guarantee all paperwork matches cargo and regulatory requirements to avoid delays at customs or port inspections.
Our production and warehousing plants maintain ISO and environmental management certifications. Customers operating in North America, Europe, and many Asia Pacific markets face tightening regulatory frameworks—REACH compliance, for example, is more than just a box to tick for polymers imported into the EU. As a manufacturer, we complete the pre-registration of our BR9000 grades, supply up-to-date REACH dossiers, and track any evolving classification under GHS for chemical safety.
Some regions enforce specific labeling rules or have limits on storage periods and stacking heights for elastomeric materials. Our labeling includes batch numbers, gross/net weights, complete contact data, and handling instructions in required languages. We continuously monitor legislative updates, from amendments to the IMDG code for ocean freight to regional transport standards, updating our shipment practices and documentation packages in response.
Poylbutadiene rubber’s low glass transition temperature makes it vulnerable to caking or hardening in poorly ventilated containers or during prolonged delays. We invest in forced-air ventilation for our warehouses and urge shipment by clean, covered, and weather-protected trucks and containers. In response to stricter environmental laws, we’re shifting to recyclable and lighter-weight packaging without sacrificing product protection.
Our technical and logistics teams stay involved beyond the production line—advising on shipment timing, transport modes, or intermediate warehousing needs as soon as orders are confirmed. Anyone requiring specialized documentation—such as certificates for medical-grade, food-contact, or automotive industry consignment—receives robust support from our regulatory staff for complete shipment confidence.
Decades of manufacturing and global shipping experience have taught us that the finer points of packaging and compliance matter just as much as the product itself. Our responsibility does not end at the factory gate; it follows every kilogram of BR9000 until our customer’s objectives have been achieved.
For product inquiries, sample requests, quotations or after-sales support, please feel free to contact me directly via sales3@ascent-chem.com, +8615365186327 or WhatsApp: +8615365186327
