Description

Benzene, Ethenyl-, Polymer With 1,3-Butadiene, Block is a high-performance block copolymer, specifically a styrene-butadiene block copolymer, identified by CAS No. 106107-54-4. This engineered material is valued for its unique combination of thermoplastic and elastomeric properties, offering excellent processability and mechanical strength. It is a critical raw material for manufacturers in the polymer modification, adhesive, and specialty plastics industries seeking to enhance product durability and flexibility.

Application

• Polymer Modification: Used as a compatibilizer and toughening agent to improve the impact resistance and flexibility of engineering plastics like polystyrene (PS), polypropylene (PP), and polyethylene (PE).
• Adhesive Formulations: Serves as a key component in pressure-sensitive adhesives (PSAs), hot-melt adhesives, and sealants, providing strong tack and cohesive strength.
• Footwear and Automotive Parts: Employed in the production of soles, gaskets, and vibration-damping components due to its excellent resilience and wear resistance.
• Bitumen Modification: Enhances the elasticity, low-temperature performance, and aging resistance of asphalt for road construction and roofing membranes.
• Consumer Goods: Utilized in the manufacture of durable goods, toys, and appliance housings where a balance of rigidity and toughness is required.

Basic Information

Product Name	Benzene, Ethenyl-, Polymer With 1,3-Butadiene, Block
CAS No.	106107-54-4
Molecular Formula	(C8H8.C4H6)x
Molecular Weight	Varies by grade (Contact for details)
Synonyms	Styrene-Butadiene Block Copolymer; SBS Block Copolymer; Polystyrene-block-polybutadiene; Styrene/Butadiene Block Polymer; Thermoplastic Elastomer SBS; K-Resin (certain grades); Styrene Butadiene Styrene Triblock Copolymer; 1,3-Butadiene, polymer with ethenylbenzene, block
EINECS	Contact for details

Quality Control

Our Styrene-Butadiene Block Copolymers are manufactured under a stringent quality management system. Each batch is tested to ensure consistent performance characteristics such as styrene content, block structure, molecular weight, and melt flow index. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep away from heat sources and open flame. For long-term storage, consider an inert atmosphere to prevent oxidation.

Specification

Item	Specification
Appearance	White to off-white pellets or granules
Styrene Content	30% - 70% (varies by grade)
Melt Flow Rate (MFR)	1 - 30 g/10 min (230°C/5kg)
Volatile Matter	≤ 0.5%
Ash Content	≤ 0.1%
Block Structure	Linear or radial (Confirmed by GPC/SEC)

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