Description

Ethenylbenzene Polymer With 2-Methyl-1-Propene And 1,3-Pentadiene is a specialized terpolymer designed to deliver a unique balance of properties by combining the characteristics of styrene, isobutylene, and piperylene. This engineered material is valued for its versatility in modifying the performance of adhesives, sealants, and polymer blends. Key industries that utilize this polymer include pressure-sensitive adhesives, rubber compounding, and coatings, where it acts as a tackifier, modifier, or compatibilizer to enhance adhesion, flexibility, and thermal stability.

Application

• Pressure-Sensitive Adhesives (PSAs): Functions as a key tackifying resin and modifier for tapes, labels, and graphic films.
• Rubber Compounding: Used as a processing aid and property enhancer in tire sidewalls, hoses, and belts.
• Sealants and Caulks: Improves adhesion, cohesion, and low-temperature flexibility in construction and automotive sealants.
• Polymer Modification: Acts as a compatibilizer and impact modifier in blends of incompatible polymers like polyolefins and styrenics.
• Hot-Melt Adhesives: Contributes to viscosity control, open time, and substrate wetting in packaging and woodworking adhesives.
• Industrial Coatings: Enhances durability, chemical resistance, and adhesion in protective and specialty coatings.

Basic Information

Item	Detail
Product Name	Ethenylbenzene Polymer With 2-Methyl-1-Propene And 1,3-Pentadiene
CAS No.	70969-61-8
Molecular Formula	(C8H8·C4H8·C5H8)n
Molecular Weight	Variable (Polymer)
Synonyms	Styrene-Isobutylene-Piperylene Terpolymer; SIBP Terpolymer; Styrene/Isobutylene/Piperylene Copolymer; Poly(styrene-co-isobutylene-co-piperylene); Tackifying Resin; Hydrocarbon Tackifier Resin; C5/C9 Modified Hydrocarbon Resin
EINECS	Contact for details

Quality Control

Our Ethenylbenzene Polymer With 2-Methyl-1-Propene And 1,3-Pentadiene is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including softening point, color, melt viscosity, and chemical composition to ensure consistent performance and lot-to-lot uniformity. Certificates of Analysis (COA) documenting these specifications are available upon request.

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 using an inert gas blanket to minimize oxidation.

Specification

Item	Specification
Appearance	Pale yellow to amber solid/pellets
Softening Point (Ring & Ball)	85 - 115 °C
Color (Gardner)	≤ 6
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.