Description

α-Methylstyrene-Vinyltoluene, Copolymer, Hydrogenated is a high-performance, fully saturated hydrocarbon resin derived from the catalytic hydrogenation of its aromatic precursor. This process yields a product with exceptional color stability, thermal and oxidative resistance, and broad compatibility. It serves as a critical tackifier, modifier, and compatibilizer in demanding industrial formulations. Key industries that utilize this material include adhesives, sealants, coatings, and polymer compounding.

Application

• Hot-Melt Adhesives (HMA): Functions as a primary tackifier, providing excellent adhesion, cohesion, and thermal stability for packaging, woodworking, and non-woven applications.
• Pressure-Sensitive Adhesives (PSA): Used as a tackifying resin in solvent-based, water-based, and UV-curable systems for labels, tapes, and graphic films, offering good peel and shear strength.
• Sealants and Caulks: Acts as a plasticizer and reinforcing agent, improving flexibility, weather resistance, and adhesion to various substrates.
• Industrial and Protective Coatings: Enhances hardness, gloss, and chemical resistance in alkyd, rubber-based, and road-marking paints.
• Polymer Modification: Used as a processing aid and compatibilizer in elastomer (e.g., EPDM, SBS) and thermoplastic (e.g., PP, PE) compounds to improve flow and mechanical properties.
• Rubber Compounding: Serves as a reinforcing resin and softener in tire and technical rubber goods manufacturing.

Basic Information

Product Name	α-Methylstyrene-Vinyltoluene, Copolymer, Hydrogenated
CAS No.	68441-38-3
Molecular Formula	(C9H10·C9H10)n (Hydrogenated)
Molecular Weight	Varies (Polymer)
Synonyms	Hydrogenated α-Methylstyrene/Vinyltoluene Copolymer; Hydrogenated AMS/VT Copolymer; Saturated C9 Hydrocarbon Resin; Hydrogenated C9 Aromatic Resin; Tackifying Resin; Piccotex™ LC (similar products); Kristalex™ (similar products); Hydrocarbon Resin, Hydrogenated
EINECS	Contact for details

Quality Control

Our α-Methylstyrene-Vinyltoluene, Copolymer, Hydrogenated is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including measurement of softening point, color (Gardner scale), bromine number, and ash content. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance protocols.

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 is stable for extended periods.

Specification

Item	Specification
Appearance	Pale yellow to white solid / flakes
Softening Point (Ring & Ball)	85 - 120°C (Grade dependent)
Color (Gardner)	≤ 2
Bromine Number	≤ 1 g Br2/100g
Ash Content	≤ 0.1 %
Acid Number	≤ 1.0 mg KOH/g

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