Description

Benzene, Ethenylmethyl-, Polymer With 1,3-Butadiene CAS NO 9052-61-3 is a high-performance synthetic rubber, specifically a styrene-butadiene copolymer. This versatile polymer is engineered to deliver an optimal balance of resilience, abrasion resistance, and processability for demanding industrial applications. It is a critical raw material for manufacturers in the tire, automotive parts, and consumer goods industries seeking durable elastomeric properties.

Application

• Tire Manufacturing: A primary component in tread compounds and sidewalls, providing essential wear resistance and traction.
• Automotive Parts: Used in belts, hoses, gaskets, and vibration dampeners due to its durability and flexibility.
• Footwear: Employed in the production of durable shoe soles and heels.
• Industrial Rubber Goods: Serves as a base for conveyor belts, seals, rollers, and molded rubber products.
• Adhesives and Sealants: Imparts strength and flexibility to high-performance bonding and sealing formulations.
• Polymer Modification: Used as an impact modifier and toughening agent for plastics like polystyrene (HIPS) and ABS.

Basic Information

Product Name	Benzene, Ethenylmethyl-, Polymer With 1,3-Butadiene
CAS No.	9052-61-3
Molecular Formula	(C8H8·C4H6)x
Molecular Weight	Varies (Polymer)
Synonyms	Styrene-Butadiene Rubber (SBR); Butadiene-Styrene Copolymer; SBR Rubber; Styrene Butadiene Copolymer; Poly(styrene-co-butadiene); Buna S; GR-S (Government Rubber-Styrene); Ameripol Synpol; Kraton D (certain grades); JSR SBR; SYNTHOMER SBR
EINECS	Contact for details

Quality Control

Our Styrene-Butadiene Rubber (SBR) is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Key parameters such as styrene content, Mooney viscosity, and stabilizer levels are rigorously tested. A comprehensive Certificate of Analysis (COA) detailing physical properties, composition, and performance metrics is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from heat sources and direct sunlight. Recommended storage temperature is 15-25°C. Keep away from strong oxidizing agents. For long-term storage, maintain under an inert atmosphere to prevent premature cross-linking or degradation.

Specification

Item	Specification
Appearance	Off-white to light amber bale or crumb
Styrene Content	20 - 25% (Typical, customizable)
Mooney Viscosity (ML 1+4 @ 100°C)	45 - 55 (Typical, customizable)
Volatile Matter	≤ 0.75%
Organic Acid	4.50 - 6.50%
Soap	≤ 0.50%
Stabilizer (Typical)	Non-staining antioxidant
Ash Content	≤ 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.