Description

Styrene-Indene Resins are synthetic hydrocarbon polymers valued for their excellent tackifying, adhesive, and film-forming properties. These resins are crucial for enhancing the performance and durability of industrial formulations, providing a balance of compatibility, thermal stability, and water resistance. They are essential raw materials for manufacturers in the adhesives, coatings, rubber, and printing ink industries seeking to improve product quality and processing efficiency.

Application

• Adhesive Formulations: As a primary tackifier and modifier in hot-melt, pressure-sensitive, and solvent-based adhesives.
• Rubber Compounding: Used as a processing aid and reinforcing agent to improve the hardness, tensile strength, and aging resistance of rubber products.
• Industrial Coatings & Paints: Imparts gloss, hardness, and water resistance to protective coatings, varnishes, and traffic paints.
• Printing Inks: Serves as a binder and glossing agent in gravure and flexographic inks, enhancing print quality and rub resistance.
• Sealants & Caulks: Improves adhesion, cohesion, and flexibility in construction and automotive sealant applications.
• Flooring & Asphalt Modification: Enhances the durability, flexibility, and binding properties of flooring compositions and asphalt paving mixtures.

Basic Information

Product Name	Styrene-Indene Resins
CAS No.	26102-44-3
Molecular Formula	(C8H8)x·(C9H8)y
Molecular Weight	Variable (Polymer)
Synonyms	Styrene/Indene Copolymer; Indene-Styrene Resin; Cumarone-Indene Resin; Hydrocarbon Resin (C9); Poly(styrene-co-indene); Aromatic Hydrocarbon Resin; Petrolatum Resin; Coumarone-Indene Resin
EINECS	247-464-0

Quality Control

Our Styrene-Indene Resins are manufactured under strict quality management systems to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive testing of key parameters including softening point, color, viscosity, and compatibility. A Certificate of Analysis (COA) detailing these specifications is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperatures (15-25°C). Keep away from heat sources and open flame. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Pale Yellow to Amber Flakes or Solid
Softening Point (Ring & Ball)	80 - 150°C (Grade Dependent)
Color (Gardner)	≤ 8
Acid Value	≤ 1.0 mg KOH/g
Saponification Value	≤ 2.0 mg KOH/g
Ash Content	≤ 0.1%
Bromine Number	Contact for details

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