Description

Benzene, Diethenyl-, Polymer With 2-Methyl-1,3-Butadiene And 2-Methyl-1-Propene is a synthetic hydrocarbon resin, specifically a terpolymer derived from styrene, isoprene, and isobutylene. This material is valued for its excellent tackifying and adhesive properties, providing a critical balance of flexibility, cohesion, and compatibility in formulated systems. It is primarily utilized by manufacturers in the adhesive, sealant, and rubber compounding industries to enhance performance characteristics in pressure-sensitive and hot-melt applications.

Application

• Pressure-Sensitive Adhesives (PSAs): A key tackifier and modifier in tapes, labels, and graphic films.
• Hot-Melt Adhesives (HMAs): Imparts tack, improves adhesion, and enhances flexibility in packaging and construction adhesives.
• Rubber Compounding: Used as a processing aid and reinforcing resin in tire treads, belts, and other industrial rubber goods.
• Sealants and Caulks: Improves adhesion, cohesion, and durability in construction and automotive sealants.
• Bitumen Modification: Enhances the elasticity, cohesion, and temperature performance of asphalt for roofing and paving applications.
• Polymer Modification: Acts as a compatibilizer and property enhancer in various polymer blends and compounds.

Basic Information

Item	Detail
Product Name	Benzene, Diethenyl-, Polymer With 2-Methyl-1,3-Butadiene And 2-Methyl-1-Propene
CAS No.	9060-33-7
Molecular Formula	(C8H8·C5H8·C4H8)x
Molecular Weight	Variable (Polymer)
Synonyms	Styrene-Isoprene-Isobutylene Terpolymer; SIB Terpolymer; SIBS; Poly(styrene-block-isoprene-block-isobutylene); Hydrocarbon Tackifying Resin; C9 Petroleum Resin (related class); Aliphatic/Aromatic Hydrocarbon Resin; Synthetic Polyterpene Resin
EINECS	Contact for details

Quality Control

Our hydrocarbon resin products are manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance in key parameters such as softening point, melt viscosity, color, and compatibility. Certificates of Analysis (COA) documenting 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 away from heat sources and open flame. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Pale yellow to amber solid (lump or flake)
Softening Point (Ring & Ball)	85°C - 115°C
Color (Gardner)	≤ 8
Acid Value	≤ 1.0 mg KOH/g
Ash Content	≤ 0.1 %
Volatile Matter	≤ 0.5 %

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