Description

Benzene, 1,3-Diethenyl-, Polymer With 1,3-Butadiene And Ethenylbenzene is a high-performance styrenic block copolymer (SBC) designed for demanding industrial applications. This engineered polymer offers an exceptional balance of flexibility, durability, and processability, making it a critical raw material for advanced material formulations. It is primarily utilized by manufacturers in the adhesives, sealants, coatings, and polymer modification industries seeking to enhance product performance and reliability.

Application

• Pressure-Sensitive Adhesives (PSAs): A key component in tapes, labels, and graphic films, providing excellent tack and peel strength.
• Sealants and Caulks: Imparts flexibility, adhesion, and weatherability to construction and automotive sealants.
• Polymer Modification: Used as a compatibilizer or toughening agent to improve the impact resistance and flexibility of plastics like PP, HDPE, and PS.
• Bitumen Modification: Enhances the elasticity, cohesion, and high-temperature performance of asphalt for roofing and road paving applications.
• Footwear and Sporting Goods: Provides cushioning, grip, and durability in soles and components.
• Hot-Melt Adhesives (HMAs): Delivers strong bonding performance with fast setting times for packaging, woodworking, and product assembly.
• Compounding and Masterbatches: Serves as a base polymer for creating custom-compounded materials with specific properties.

Basic Information

Product Name	Benzene, 1,3-Diethenyl-, Polymer With 1,3-Butadiene And Ethenylbenzene
CAS No.	26471-45-4
Molecular Formula	(C10H10·C4H6·C8H8)x
Molecular Weight	Varies (Polymer)
Synonyms	Styrene-Isoprene-Butadiene Rubber (SIBR); Styrene-Isoprene-Butadiene Block Copolymer; SIB Block Copolymer; 1,3-Diethenylbenzene polymer with 1,3-butadiene and ethenylbenzene; Poly(styrene-block-isoprene-block-butadiene); SIB Triblock Copolymer; Thermoplastic Rubber (TPR); Styrenic Block Copolymer
EINECS	Contact for details

Quality Control

Our styrenic block copolymers are manufactured under strict process controls to ensure batch-to-batch consistency and meet precise performance specifications. Quality is verified through a comprehensive suite of tests including molecular weight distribution (GPC), styrene content, block structure analysis, and key physical properties. A Certificate of Analysis (COA) detailing all relevant parameters 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 at room temperature (15-25°C). Keep away from heat sources and open flame. For long-term storage, consider packaging under an inert atmosphere to prevent oxidation.

Specification

Item	Specification
Appearance	Translucent pellets or crumbs
Styrene Content	15% - 40%
Volatile Matter	≤ 0.5%
Ash Content	≤ 0.1%
Melt Flow Index (MFI)	1 - 30 g/10 min (Condition G)
Solution Viscosity	Contact for details
Block Structure	Linear Triblock

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