Description

4,7-Methano-1H-indene, 3a,4,7,7a-tetrahydro-, polymer with ethenylbenzene, ethenylmethylbenzene, 1H-indene, 3-methylene-6-(1-methylethyl)cyclohexene, (1-methylethenyl)benzene, 1-methyl-4-(1-methylethenyl)cyclohexene, 1-methyl-4-(1-methylethyl)-1,3-cyclohe is a complex, high-performance hydrocarbon resin derived from a co-polymerization of multiple terpene and aromatic monomers. This specialized polymer is engineered to deliver excellent tackifying properties, thermal stability, and compatibility with a wide range of elastomers and polymers. It serves as a critical formulation component for industrial manufacturers seeking to enhance the performance of adhesives, sealants, and coatings. Its unique molecular structure provides a balance of properties that are essential for demanding applications.

Application

• Hot-Melt Adhesives (HMA): Acts as a primary tackifier to improve initial adhesion, bond strength, and heat resistance.
• Pressure-Sensitive Adhesives (PSA): Enhances peel strength, tack, and shear resistance in tapes and labels.
• Rubber Compounding: Used as a processing aid and tackifier in rubber formulations for tires, belts, and seals.
• Sealants and Caulks: Improves adhesion, flexibility, and durability in construction and automotive sealants.
• Industrial Coatings and Inks: Imparts gloss, hardness, and water resistance in protective coatings and printing inks.
• Polymer Modification: Functions as a compatibilizer and modifier to adjust the rheological and mechanical properties of various polymer blends.

Basic Information

Item	Details
Product Name	4,7-Methano-1H-indene, 3a,4,7,7a-tetrahydro-, polymer with ethenylbenzene, ethenylmethylbenzene, 1H-indene, 3-methylene-6-(1-methylethyl)cyclohexene, (1-methylethenyl)benzene, 1-methyl-4-(1-methylethenyl)cyclohexene, 1-methyl-4-(1-methylethyl)-1,3-cyclohe
CAS No.	68239-99-6
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Variable (Contact for details)
Synonyms	Hydrocarbon Resin (C5/C9/Terpene); Terpene-Phenol Resin; Aromatic Modified Terpene Resin; Tackifying Resin; C5 Aliphatic / C9 Aromatic Hydrocarbon Resin; Polyterpene Resin; Synthetic Polyterpene; Co-polymerized Terpene Resin
EINECS	Contact for details

Quality Control

Our hydrocarbon resins are produced under strict quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analysis, including tests for softening point, color, acid value, and solubility. Certificates of Analysis (COA) detailing all relevant specifications are provided with every shipment. We can support compliance with various industry standards, including those relevant to food contact and pharmaceutical packaging, upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Keep away from heat sources and open flame. For long-term storage, consider using an inert atmosphere to prevent oxidation.

Specification

Item	Specification
Appearance	Pale yellow to amber solid / flakes
Softening Point (Ring & Ball)	85 - 120°C (Grade Dependent)
Color (Gardner)	≤ 8
Acid Value	≤ 1.0 mg KOH/g
Saponification Value	≤ 2.0 mg KOH/g
Ash Content	≤ 0.1 %
Solubility	Soluble in common organic solvents (Toluene, Xylene, etc.)

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