Description

Soybean-Dimer Fatty Acids/ Bisphenol A/ Epichlorohydrin CAS NO 66070-80-2 is a specialized epoxy resin intermediate, representing a high-performance, modified epoxy prepolymer. This compound is engineered to offer enhanced flexibility, chemical resistance, and adhesion properties compared to standard bisphenol A-based epoxies. It is a critical raw material for formulators and manufacturers in the coatings, adhesives, and composite industries seeking to improve the durability and performance of their end products.

Application

• High-Performance Coatings: Used as a flexibilizing agent in epoxy-based industrial, marine, and protective coatings to improve impact resistance and reduce brittleness.
• Structural Adhesives & Sealants: A key component in formulating toughened epoxy adhesives for automotive, aerospace, and construction applications, providing excellent bond strength and stress dissipation.
• Composite Materials: Serves as a matrix resin modifier in fiber-reinforced plastics (FRP) and carbon fiber composites, enhancing interlaminar toughness and fatigue resistance.
• Electrical Encapsulation & Potting: Employed in electronic applications to create resilient, moisture-resistant potting compounds and encapsulants for sensitive components.
• Flooring & Civil Engineering: Used in high-durability self-leveling floors, grouts, and repair mortars where flexibility and chemical resistance are paramount.
• Tooling & Molding Compounds: Acts as a resin component in flexible molds and master models, offering good release properties and dimensional stability.

Basic Information

Product Name	Soybean-Dimer Fatty Acids/ Bisphenol A/ Epichlorohydrin
CAS No.	66070-80-2
Molecular Formula	Complex polymer/prepolymer; Contact for details
Molecular Weight	Variable (Oligomeric mixture); Contact for details
Synonyms	Epoxy resin, modified with dimer acid; Dimer acid-modified epoxy resin; Bisphenol A epoxy resin dimer fatty acid adduct; Flexible epoxy resin intermediate; Epoxy prepolymer based on bisphenol A and dimer acid; Dimerized fatty acid epoxy resin; TOUGHENED EPOXY RESIN INTERMEDIATE; Epoxy oligomer from epichlorohydrin, bisphenol A, and soybean dimer acid
EINECS	Contact for details

Quality Control

Our production of this advanced epoxy intermediate adheres to strict quality management systems. Each batch is characterized for critical parameters including epoxy equivalent weight (EEW), viscosity, and color to ensure consistency and performance. Certificates of Analysis (COA) documenting these specifications are provided with every shipment. We support compliance with relevant global regulatory frameworks for industrial chemicals.

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); ensure containers are sealed immediately after use to prevent absorption of atmospheric moisture which can affect product properties.

Specification

Item	Specification
Appearance	Viscous liquid, pale yellow to amber
Epoxy Equivalent Weight (EEW)	Contact for details
Viscosity @ 25°C	Contact for details
Color (Gardner)	≤ 4
Hydrolyzable Chloride	≤ 0.1 %
Moisture Content	≤ 0.1 %

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