Description

Phenol, Polymer With Ethenylbenzene And (1-Methylethenyl)Benzene is a high-performance phenolic resin copolymer designed for demanding industrial applications. This engineered polymer offers a unique balance of thermal stability, chemical resistance, and mechanical properties, making it a critical component in advanced material formulations. It is essential for manufacturers in the coatings, adhesives, and composite materials sectors seeking to enhance product durability and performance under harsh conditions.

Application

• High-Performance Coatings & Paints: Acts as a key resin binder in industrial, marine, and automotive coatings, providing excellent adhesion, chemical resistance, and gloss retention.
• Adhesives & Sealants: Used in the formulation of structural adhesives, laminating adhesives, and high-temperature sealants for aerospace, automotive, and construction applications.
• Composite Materials: Serves as a matrix resin or modifier in fiber-reinforced plastics (FRP) and other composites, improving interlaminar shear strength and thermal performance.
• Molding Compounds: Incorporated into phenolic molding compounds for electrical components, appliance handles, and automotive parts requiring high heat resistance and dimensional stability.
• Friction Materials: Utilized as a binder in brake pads and clutch facings to provide stable friction coefficients and thermal stability.
• Foundry Resins: Employed in shell molding and core-making processes in metal casting for its excellent flow and cure characteristics.

Basic Information

Product Name	Phenol, Polymer With Ethenylbenzene And (1-Methylethenyl)Benzene
CAS No.	77939-50-5
Molecular Formula	(C8H8·C9H10·C6H6O)x
Molecular Weight	Polymer - Contact for details
Synonyms	Phenol-styrene-α-methylstyrene copolymer; Phenolic resin modified with styrene and α-methylstyrene; Styrenated phenolic resin; Phenol-styrene-α-methylstyrene terpolymer; Phenol/ethenylbenzene/(1-methylethenyl)benzene polymer; Phenol, polymer with styrene and α-methylstyrene; CAS 77939-50-5
EINECS	Contact for details

Quality Control

Our production of Phenol, Polymer With Ethenylbenzene And (1-Methylethenyl)Benzene adheres to stringent quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot is tested against critical parameters including viscosity, softening point, hydroxyl value, and residual monomer content. A comprehensive Certificate of Analysis (COA) documenting these results is provided with every shipment to support your quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	Yellow to amber solid or viscous liquid
Softening Point (Ring & Ball)	80 - 120 °C
Viscosity (at 150°C)	500 - 5000 mPa·s
Hydroxyl Value	Contact for details
Gel Time (at 150°C)	Contact for details
Residual Monomer	< 1.0% (by GC)
Solubility	Soluble in common organic solvents

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