Description

Phenol, Methylenebis-, Polymer With (Chloromethyl)Oxirane is a specialized epoxy resin intermediate, specifically a phenolic novolac epoxy resin. This compound is a critical building block in the formulation of high-performance, heat-resistant thermoset polymers. It is essential for manufacturers requiring advanced materials with superior thermal stability, chemical resistance, and strong adhesion properties. Key industries that utilize this polymer include electronics encapsulation, aerospace composites, and high-temperature industrial coatings.

Application

• Advanced Electronic Encapsulants and Molding Compounds: Used for semiconductor packaging and potting to protect sensitive components from thermal stress and environmental factors.
• High-Performance Composite Matrices: Serves as a resin matrix in fiber-reinforced composites for aerospace and automotive applications demanding lightweight strength and heat resistance.
• Industrial & Protective Coatings: Formulated into coatings for chemical processing equipment, pipelines, and marine environments where corrosion and high-temperature resistance are paramount.
• Adhesives and Sealants: A key component in structural adhesives for metal bonding and high-temperature gaskets.
• Laminates for Printed Circuit Boards (PCBs): Used in the production of FR-4 and other high-grade laminates, providing excellent electrical insulation and thermal performance.
• Friction Materials: Incorporated into formulations for brake pads and clutch facings to enhance thermal stability and wear resistance.

Basic Information

Item	Details
Product Name	Phenol, Methylenebis-, Polymer With (Chloromethyl)Oxirane
CAS No.	58421-55-9
Molecular Formula	(C21H24O4)n (Representative)
Molecular Weight	Varies (Polymer)
Synonyms	Epoxy Novolac Resin; Phenolic Novolac Epoxy; Epoxy Phenol Novolac Resin; (Chloromethyl)oxirane polymer with methylenebisphenol; Epoxy Cresol Novolac (ECN) analog; Bisphenol F Novolac Epoxy; Thermosetting Epoxy Prepolymer; High-functionality Epoxy Resin
EINECS	Contact for details

Quality Control

Our production of Phenol, Methylenebis-, Polymer With (Chloromethyl)Oxirane adheres to stringent quality management protocols. Each batch is characterized for critical parameters including epoxy equivalent weight (EEW), viscosity, softening point, and chlorine content to ensure consistency and performance. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. We operate under a quality system designed to meet the demands of global industrial and advanced material supply chains.

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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to brown solid / flakes
Epoxy Equivalent Weight (EEW)	170 - 230 g/eq
Softening Point	40 - 70 °C
Viscosity (at 150°C)	500 - 5000 mPa·s
Hydrolyzable Chlorine	< 1000 ppm
Total Chlorine	< 2000 ppm
Color (Gardner)	< 5
Volatile Content	< 1.0 %

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