Description

Phenol, 4,4'-(1-methylethylidene)bis-, polymer with 2,2'-[(1-methylethylidene)bis(4,1-phenylene oxymethylene)]bis[oxirane] and .alpha.-(oxiranylmethyl)-.omega.-(oxiranylmethoxy) poly[oxy(methyl-1,2-ethanediyl)] is a specialized, high-performance epoxy resin modifier designed to enhance the mechanical and thermal properties of cured epoxy systems. This advanced polymeric additive is crucial for formulators seeking to achieve superior toughness, flexibility, and adhesion in demanding composite and coating applications. It is primarily utilized by manufacturers in the aerospace, automotive, and high-performance electronics industries where material reliability is non-negotiable.

Application

• Advanced Composite Matrices: Used as a toughening agent in epoxy resins for carbon fiber and fiberglass composites in aerospace and automotive structural components.
• High-Performance Coatings & Adhesives: Modifies epoxy-based formulations to improve flexibility, impact resistance, and adhesion to difficult substrates.
• Electronic Encapsulation & Potting: Enhances the thermal shock resistance and durability of epoxy compounds used to protect sensitive electronic assemblies.
• Tooling & Molding Compounds: Incorporated into epoxy systems for molds, fixtures, and patterns to reduce brittleness and improve service life.
• Wind Energy Components: A key modifier in epoxy resins for wind turbine blade composites, contributing to long-term fatigue resistance.

Basic Information

Product Name	Phenol, 4,4'-(1-methylethylidene)bis-, polymer with 2,2'-[(1-methylethylidene)bis(4,1-phenylene oxymethylene)]bis[oxirane] and .alpha.-(oxiranylmethyl)-.omega.-(oxiranylmethoxy) poly[oxy(methyl-1,2-ethanediyl)]
CAS No.	69761-19-9
Molecular Formula	Typically a complex polymeric mixture; Contact for details
Molecular Weight	Varies by grade and polymerization degree
Synonyms	Epoxy resin toughener; Bisphenol A epoxy resin adduct with polyoxypropylene diamine; Epoxy-functionalized polyether; Reactive polyether-modified epoxy resin; Flexibilizer for epoxy resins; Epoxy-polyether copolymer; CAS 69761-19-9; Epoxy resin modifier 69761-19-9
EINECS	Contact for details

Quality Control

Our production of this advanced epoxy modifier adheres to strict quality management systems, ensuring batch-to-batch consistency critical for high-performance formulations. Key parameters such as epoxy equivalent weight (EEW), viscosity, and reactive group content are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications 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, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Viscous liquid, clear to pale yellow
Epoxy Equivalent Weight (EEW)	Contact for details
Viscosity @ 25°C	Contact for details
Color (Gardner)	≤ 3
Moisture Content	≤ 0.2%
Identification (IR)	Conforms to standard

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