Description

Phenol,4,4'-(1-Phenylethylidene)Bis-,Polymer With(Chloromethyl)Oxirane CAS NO 31939-84-1 is a specialized epoxy resin intermediate derived from bisphenol-A and epichlorohydrin. This compound is critical for formulating high-performance thermosetting polymers with excellent thermal stability, chemical resistance, and strong adhesion properties. It is primarily needed by manufacturers in the advanced composites, electronic encapsulation, protective coatings, and aerospace adhesive industries seeking to enhance material durability.

Application

• Advanced Composite Matrices: As a key resin component for carbon fiber and fiberglass reinforcements in automotive and aerospace structures.
• Electronic Encapsulants & Potting Compounds: For protecting sensitive semiconductor devices and circuit boards from moisture, chemicals, and mechanical stress.
• High-Performance Industrial Coatings: Formulating chemical-resistant and durable protective layers for pipelines, storage tanks, and industrial flooring.
• Structural Adhesives: Used in aerospace and automotive assembly for bonding metals, ceramics, and composite materials.
• Electrical Laminates: Serving as a resin binder in the production of printed circuit board (PCB) substrates like FR-4.
• Tooling and Molding Compounds: For creating durable molds and patterns in the manufacturing sector.

Basic Information

Product Name	Phenol,4,4'-(1-Phenylethylidene)Bis-,Polymer With(Chloromethyl)Oxirane
CAS No.	31939-84-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Epoxy resin based on Bisphenol A; Bisphenol A diglycidyl ether oligomer; BADGE oligomer; Epichlorohydrin-Bisphenol A resin; Bisphenol A epoxy resin; DGEBA oligomer; 2,2-Bis[4-(2,3-epoxypropoxy)phenyl]propane polymer; Epoxy Novolac (related class)
EINECS	Contact for details

Quality Control

Our production of this epoxy resin intermediate adheres to stringent quality management protocols. Every batch is characterized using advanced analytical techniques to ensure consistency in epoxy equivalent weight (EEW), viscosity, and hydrolyzable chloride content, which are critical for downstream polymer performance. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee traceability and compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources, open flames, and incompatible materials such as strong acids, bases, and oxidizing agents. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Viscous pale yellow to amber liquid
Epoxy Equivalent Weight (EEW)	Contact for details
Viscosity (25°C)	Contact for details
Hydrolyzable Chloride	≤ Contact for details
Color (Gardner)	≤ Contact for details
Identification (IR)	Conforms

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