Description

Styrene, Polymer With 1,3-Butadiene And Isoprene CAS NO 26602-62-0 is a synthetic terpolymer, commonly known as a styrene-butadiene-isoprene (SBI) rubber or resin. This versatile material is engineered to deliver a balanced profile of properties, including elasticity, durability, and processability, making it a critical raw material for high-performance applications. It is primarily sought after by manufacturers in the adhesives, sealants, coatings, and polymer modification industries who require a reliable and consistent elastomeric component.

Application

• Pressure-Sensitive Adhesives (PSAs): A key component in tapes and labels, providing tack, peel strength, and cohesive balance.
• Sealants and Caulks: Used to formulate flexible, durable, and weather-resistant sealants for construction and automotive applications.
• Polymer Modification: Acts as an impact modifier and processing aid for thermoplastics like polystyrene and polyolefins.
• Industrial and Construction Coatings: Imparts flexibility, adhesion, and water resistance to protective coatings and mastics.
• Footwear and Rubber Goods: Employed in the production of soles, gaskets, and other molded rubber products requiring resilience.
• Bitumen Modification: Enhances the elasticity, temperature stability, and aging resistance of asphalt for road paving and roofing.

Basic Information

Product Name	Styrene, Polymer With 1,3-Butadiene And Isoprene
CAS No.	26602-62-0
Molecular Formula	(C8H8·C4H6·C5H8)x
Molecular Weight	Varies (Polymer)
Synonyms	SBI Rubber; Styrene-Butadiene-Isoprene Terpolymer; SBI Terpolymer; Isoprene-Butadiene-Styrene Rubber; Styrene/Butadiene/Isoprene Copolymer; 1,3-Butadiene, polymer with isoprene and styrene; ABS-type Terpolymer (related); Thermoplastic Elastomer (SBI type)
EINECS	Contact for details

Quality Control

Our Styrene, Polymer With 1,3-Butadiene And Isoprene is manufactured under a stringent quality management system. Each batch is tested against rigorous in-house specifications to ensure consistency in key parameters such as styrene content, Mooney viscosity, and gel content. Certificates of Analysis (COA) detailing these results are provided with every shipment to guarantee product integrity and 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 ambient temperatures (15-25°C). Keep away from heat sources and open flame. Prolonged exposure to elevated temperatures or direct sunlight should be avoided to prevent premature curing or changes in viscosity.

Specification

Item	Specification
Appearance	Pale yellow to amber solid (crumb, slab, or pellet)
Styrene Content	20 - 40 %
Mooney Viscosity (ML 1+4 @ 100°C)	30 - 70
Volatile Matter	≤ 1.0 %
Ash Content	≤ 0.5 %
Stabilizer Content	As specified (typically antioxidant)

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