Description

Formaldehyde, Polymer With Phenol And 4.4'-Sulfonylbis[Phenol] is a high-performance, cross-linked phenolic resin engineered for demanding industrial applications. This specialized polymer offers exceptional thermal stability, chemical resistance, and mechanical strength, making it a critical material for advanced composites and coatings. It is primarily utilized by manufacturers in the aerospace, electronics, and high-temperature adhesive sectors seeking reliable, high-performance polymeric materials.

Application

• High-Temperature Composite Matrices: As a binder and matrix resin for carbon fiber and fiberglass composites in aerospace and automotive components.
• Electronic Encapsulation and Molding Compounds: For semiconductor packaging and electronic components requiring excellent dielectric properties and thermal endurance.
• Advanced Adhesives and Sealants: Formulation of high-strength, heat-resistant structural adhesives for industrial assembly.
• Ablative and Thermal Protection Systems: Used in coatings and materials designed to withstand extreme heat and erosive environments.
• Friction Materials: As a resin component in brake pads and clutch facings for enhanced performance and durability.
• Industrial Protective Coatings: For chemical-resistant linings and protective coatings in aggressive service environments.

Basic Information

Product Name	Formaldehyde, Polymer With Phenol And 4.4'-Sulfonylbis[Phenol]
CAS No.	77810-18-5
Molecular Formula	(C7H6O2.C6H6O.CH2O)x
Molecular Weight	Polymeric substance
Synonyms	Phenol, polymer with formaldehyde and 4,4'-sulfonyldiphenol; Phenolic resin, sulfone-modified; 4,4'-Sulfonyldiphenol-formaldehyde-phenol copolymer; Poly(phenol-formaldehyde-4,4'-sulfonyldiphenol); Bisphenol S phenolic resin; Thermosetting phenolic sulfone resin; High-temperature phenolic copolymer; Novolac-type sulfone polymer
EINECS	Contact for details

Quality Control

Our production of Formaldehyde, Polymer With Phenol And 4.4'-Sulfonylbis[Phenol] adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including gel time, curing behavior, thermal stability, and residual monomer content. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

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. The product may be hygroscopic; ensure containers are sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Yellow to brown powder or granules
Gel Time (at 150°C)	Contact for details
Softening Point (Ring & Ball)	80 - 110 °C
Volatile Content	< 2.0 %
Free Phenol Content	< 1.0 %
Free Formaldehyde Content	< 0.5 %

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