Description

Coumarone-Indene Resins, Polymers With Styrene are a class of thermoplastic hydrocarbon resins produced by the polymerization of coumarone, indene, and styrene monomers. These resins are valued for their excellent compatibility with a wide range of polymers, oils, and waxes, enhancing adhesion, water resistance, and hardness in final formulations. They are essential components for manufacturers in the rubber, adhesive, coating, and printing ink industries seeking to improve product performance and processing characteristics.

Application

• Adhesives & Sealants: As tackifiers and reinforcing agents in hot-melt, pressure-sensitive, and rubber-based adhesives to improve bond strength and cohesion.
• Rubber Compounding: Used as processing aids, plasticizers, and reinforcing agents in tire treads, belts, hoses, and other rubber goods to enhance durability and extrusion properties.
• Printing Inks: Imparts gloss, hardness, and water resistance to gravure, flexographic, and overprint varnishes.
• Paints & Coatings: Serves as a modifier to improve film formation, adhesion to substrates, and chemical resistance in industrial and protective coatings.
• Flooring & Asphalt Modification: Enhances the flexibility, resilience, and aging resistance of flooring materials and asphalt pavements.
• Polymer Modification: Acts as a compatibilizer and processing aid in blends of various plastics, including PVC, to modify flow and mechanical properties.

Basic Information

Product Name	Coumarone-Indene Resins, Polymers With Styrene
CAS No.	63393-90-8
Molecular Formula	Complex Polymer Mixture
Molecular Weight	Variable (Typically 500-2000 g/mol)
Synonyms	Cumarone-Indene Resin; Cumarone Resin; Coumarone Resin; Indene-Coumarone Resin; C9 Hydrocarbon Resin; Styrenated Coumarone-Indene Resin; Petroleum Resin (C9 Type); Poly(coumarone-co-indene-co-styrene)
EINECS	Contact for details

Quality Control

Our Coumarone-Indene Resins are manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters such as softening point, color, viscosity, and bromine number to ensure consistency and performance. Certificates of Analysis (COA) are provided with every shipment, confirming compliance with agreed specifications and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from strong acids and organic solvents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep away from heat sources and open flame.

Specification

Item	Specification
Appearance	Pale Yellow to Amber Lumps or Flakes
Softening Point (Ring & Ball)	80°C - 140°C (Grade Dependent)
Color (Gardner)	≤ 8
Ash Content	≤ 0.1%
Acid Value	≤ 1.0 mg KOH/g
Bromine Number	10 - 40 g Br₂/100g (Grade Dependent)
Solubility	Soluble in Aromatic Hydrocarbons, Esters, Ketones

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