Description

Formaldehyde, Polymer With 4,4'-(1-Methylethylidene)Bis[Phenol], 2,2'-[(1-Methylethylidene) Bis(4,1-Phenyleneoxymethylene)Bis[Oxirane] And Phenol is a specialized phenolic-epoxy novolac resin, a high-performance thermosetting polymer. This compound is engineered to deliver exceptional thermal stability, chemical resistance, and strong mechanical properties in cured applications. It is a critical intermediate for formulators and manufacturers in advanced material sectors requiring durable, high-performance coatings, adhesives, and composite matrices.

Application

• Advanced Composite Matrices: As a resin component for fiber-reinforced plastics (FRP) in aerospace, automotive, and marine industries.
• High-Temperature & Chemical-Resistant Coatings: Formulation of protective linings for industrial equipment, pipes, and tanks exposed to corrosive environments.
• Electronics Encapsulation & Molding Compounds: Used in semiconductor packaging and electronic components for its excellent insulating properties and low shrinkage upon cure.
• Structural Adhesives: A key ingredient in high-strength, durable adhesives for metal-to-metal and composite bonding.
• Friction Materials: Binder resin in brake pads and clutch facings for enhanced thermal performance.
• Industrial Tooling & Molds: For creating durable master models, patterns, and molds in foundries and composite lay-up processes.

Basic Information

Product Name	Formaldehyde, Polymer With 4,4'-(1-Methylethylidene)Bis[Phenol], 2,2'-[(1-Methylethylidene) Bis(4,1-Phenyleneoxymethylene)Bis[Oxirane] And Phenol
CAS No.	128801-08-1
Molecular Formula	Not a single molecule; complex polymeric mixture.
Molecular Weight	Varies by grade and polymerization degree. Contact for details.
Synonyms	Epoxy Phenolic Novolac Resin; Phenol, polymer with formaldehyde and 4,4'-(1-methylethylidene)bis[phenol] and 2,2'-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)]bis[oxirane]; Bisphenol A Epoxy Novolac; Epoxy Cresol Novolac Analog; Thermosetting Phenolic-Epoxy Resin; FR-4 Resin Intermediate; High-Functionality Epoxy Resin; Multifunctional Epoxy Hardener.
EINECS	Contact for details.

Quality Control

Our production of this advanced resin adheres to strict quality management systems, ensuring batch-to-batch consistency for critical applications. Key parameters such as epoxy equivalent weight (EEW), viscosity, softening point, and residual monomer content are rigorously controlled. Certificates of Analysis (COA) detailing all relevant specifications are provided with each shipment 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 room temperature (15-25°C). Keep away from heat sources and open flame. Under recommended conditions, the product is typically stable. Prolonged exposure to elevated temperatures or moisture may affect performance.

Specification

Item	Specification
Appearance	Yellow to amber solid or viscous liquid
Epoxy Equivalent Weight (EEW)	170 - 220 g/eq (Grade dependent)
Viscosity (at 25°C)	5,000 - 50,000 mPa·s (Grade dependent)
Softening Point (Ring & Ball)	40 - 80 °C
Color (Gardner)	≤ 12
Hydrolyzable Chloride	≤ 500 ppm
Total Chloride	≤ 1000 ppm
Volatile Content	≤ 1.0 %

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