Description

Formaldehyde, polymer with (chloromethyl)oxirane, 4,4'-(1-methylethylidene)bis[phenol], methyloxirane, methyloxirane polymer with oxirane ether with 1,2,3-propanetriol (3:1), nonylphenol and oxirane CAS NO 68140-39-6 is a specialized, multi-component epoxy phenolic resin designed for high-performance applications. This advanced polymeric material matters for its exceptional thermal stability, chemical resistance, and strong adhesion properties, which are critical in demanding industrial environments. It is primarily needed by manufacturers in the electronics, aerospace, automotive, and protective coatings sectors seeking reliable matrix resins and high-strength adhesives.

Application

• Advanced Composite Matrices: Used as a resin matrix for carbon fiber and fiberglass composites in aerospace and automotive structural components.
• Electronic Encapsulation & Underfilling: Provides critical protection for semiconductors, integrated circuits, and electronic modules from moisture, thermal shock, and mechanical stress.
• High-Temperature Adhesives: Serves as a base for structural adhesives and bonding agents in applications requiring long-term durability under thermal cycling.
• Industrial & Marine Protective Coatings: Formulated into high-performance coatings that offer superior corrosion and chemical resistance for pipelines, tanks, and marine vessels.
• Electrical Laminates: Used in the production of printed circuit board (PCB) substrates and other electrical insulating materials.
• Molding Compounds: Employed in transfer and compression molding for parts requiring high dimensional stability and heat resistance.

Basic Information

Product Name	Formaldehyde, polymer with (chloromethyl)oxirane, 4,4'-(1-methylethylidene)bis[phenol], methyloxirane, methyloxirane polymer with oxirane ether with 1,2,3-propanetriol (3:1), nonylphenol and oxirane
CAS No.	68140-39-6
Molecular Formula	Complex Polymer Mixture
Molecular Weight	Variable (Polymer)
Synonyms	Epoxy Novolac Resin; Phenolic Epoxy Resin; Multifunctional Epoxy Resin; Epoxy Cresol Novolac (ECN) type resin; Epoxy Phenolic Adhesive Resin; Tetraglycidyl ether of bisphenol A novolac; TGBA; Epoxy resin based on phenol-formaldehyde novolac; Advanced epoxy phenolic copolymer.
EINECS	Contact for details

Quality Control

Our production of this advanced epoxy phenolic resin adheres to strict quality management systems, ensuring batch-to-batch consistency for critical applications. Quality is verified through parameters including epoxy equivalent weight (EEW), viscosity, softening point, and halogen content. 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 incompatible materials. This product has a defined shelf life; use on a first-in, first-out (FIFO) basis.

Specification

Item	Specification
Appearance	Yellow to brown solid / flakes
Epoxy Equivalent Weight (EEW)	170 - 220 g/eq
Softening Point	60 - 90 °C
Viscosity (at 150°C)	500 - 3000 mPa·s
Hydrolyzable Chloride	< 1000 ppm
Total Chloride	< 2000 ppm
Volatile Content	< 1.0 %
Gel Time (at 150°C)	Contact for details

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