Description

Methylbutene/Piperylene Copolymer CAS NO 79586-89-3 is a synthetic hydrocarbon resin derived from the copolymerization of methylbutene and piperylene monomers. This versatile polymer is valued for its excellent tackifying properties, chemical resistance, and compatibility with a wide range of elastomers and polymers. It is primarily utilized in the formulation of adhesives, sealants, and rubber compounds across the industrial manufacturing and construction sectors.

Application

• Adhesive Formulations: Acts as a key tackifier and reinforcing agent in hot-melt, pressure-sensitive, and structural adhesives.
• Rubber Compounding: Enhances processing, tack, and reinforcement in the production of tires, belts, hoses, and other molded rubber goods.
• Sealants and Caulks: Improves adhesion, cohesion, and flexibility in construction and automotive sealants.
• Printing Inks: Used as a resinous component to improve gloss, adhesion, and rub resistance.
• Paint and Coatings: Serves as a modifying resin to enhance specific properties like water resistance and durability.
• Plastic Modification: Employed as a compatibilizer or processing aid in various polymer blends and composites.

Basic Information

Product Name	Methylbutene/Piperylene Copolymer
CAS No.	79586-89-3
Molecular Formula	(C5H8·C5H10)x
Molecular Weight	Variable (Typically 1000-3000 g/mol)
Synonyms	Piperylene/Methylbutene Copolymer; C5 Hydrocarbon Resin; Aliphatic C5 Resin; Poly(1,3-pentadiene-co-2-methyl-1-butene); Tackifying Resin; Petroleum Resin (C5 type); Synthetic Polyterpene Resin; Liquid Polybutene (related class)
EINECS	Contact for details

Quality Control

Our Methylbutene/Piperylene Copolymer is manufactured under a stringent quality management system. Each batch is tested against rigorous in-house specifications to ensure consistent performance in key parameters such as softening point, color, and melt viscosity. Certificates of Analysis (COA) documenting these results 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 ambient temperatures (typically 15-25°C). Keep away from heat sources and open flames. For long-term storage, consider under an inert atmosphere to prevent oxidation.

Specification

Item	Specification
Appearance	Pale yellow to amber solid or viscous liquid
Softening Point (Ring & Ball)	80°C - 120°C (Grade dependent)
Color (Gardner)	≤ 6
Acid Value	≤ 1.0 mg KOH/g
Saponification Value	≤ 2.0 mg KOH/g
Ash Content	≤ 0.1%

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