Description

Polyisoprene, Chlorinated is a chemically modified elastomer produced by the controlled chlorination of synthetic or natural polyisoprene rubber. This modification imparts valuable properties such as enhanced flame retardancy, improved oil and chemical resistance, and increased adhesion to various substrates. It is a critical raw material for formulators and manufacturers in the adhesives, coatings, and specialty rubber industries seeking to improve product performance and durability.

Application

• Adhesive Formulations: Acts as a tackifier and chlorinated resin component in pressure-sensitive adhesives (PSAs), contact cements, and sealants, improving bond strength and chemical resistance.
• Protective Coatings: Used in corrosion-resistant primers, marine paints, and industrial maintenance coatings due to its excellent barrier properties and adhesion to metals.
• Flame-Retardant Additive: Incorporated into rubber compounds, plastics, and cable insulation materials to enhance fire safety and meet regulatory standards (e.g., UL 94).
• Rubber Compounding: Serves as a compatibilizer and modifier in blends with other elastomers like CR (Polychloroprene) and NBR (Nitrile rubber) to improve ozone, oil, and weathering resistance.
• Printing Inks: Utilized as a resin in specialty printing inks to promote adhesion on non-porous surfaces like plastics and foils.
• Sound Damping Materials: A component in viscoelastic compounds used for vibration damping and noise reduction in automotive and construction applications.

Basic Information

Product Name	Polyisoprene, Chlorinated
CAS No.	68441-58-7
Molecular Formula	(C5H8)n·Clx
Molecular Weight	Varies (Polymer)
Synonyms	Chlorinated Polyisoprene; Chlorinated Isoprene Rubber; Chlorinated Synthetic Rubber; Chlorinated 1,4-Polyisoprene; Polychloroisoprene; Chloroir; CPI; Rubber, chlorinated isoprene
EINECS	Contact for details

Quality Control

Our Chlorinated Polyisoprene is manufactured under a strict quality management system. Each batch is tested to ensure consistent chlorine content, viscosity, and thermal stability, which are critical for performance in downstream applications. Comprehensive Certificates of Analysis (COA) documenting key parameters are provided with every shipment to guarantee traceability and compliance with your specifications.

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, open flames, and strong oxidizing agents. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Pale yellow to amber solid or viscous solution
Chlorine Content	60 - 70% (Typical)
Viscosity (Solution, 25°C)	1000 - 5000 mPa·s (Grade dependent)
Softening Point (Ring & Ball)	80 - 120 °C
Acid Value	≤ 1.0 mg KOH/g
Solubility	Soluble in aromatic hydrocarbons, chlorinated solvents, esters

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