Description

Fatty Acids, Dehydrated Castor-Oil, Polymers With Bisphenol A And Epichlorohydrin CAS NO 66070-77-7 is a specialized epoxy resin modifier synthesized from dehydrated castor oil fatty acids, bisphenol A, and epichlorohydrin. This advanced polymeric additive is engineered to impart superior flexibility, impact resistance, and adhesion to epoxy resin systems. It is a critical performance-enhancing component for formulators in the coatings, adhesives, and composite materials industries seeking to improve the toughness and durability of their final products.

Application

• Epoxy Resin Modification: Primary use as a flexibilizer and toughening agent for epoxy resins, enhancing crack resistance and elongation.
• Protective Coatings: Formulation of high-performance industrial, marine, and automotive coatings requiring excellent adhesion and corrosion resistance.
• Structural Adhesives: Used in aerospace, automotive, and construction adhesives to improve peel strength and impact performance.
• Composite Materials: Modification of epoxy matrices in fiber-reinforced composites (e.g., carbon fiber, fiberglass) to reduce brittleness.
• Electrical Encapsulation: Employed in potting and encapsulation compounds to provide stress relief and thermal cycling stability.
• Flooring and Civil Engineering: Key ingredient in high-durability epoxy flooring systems and grouts for industrial and commercial applications.

Basic Information

Product Name	Fatty Acids, Dehydrated Castor-Oil, Polymers With Bisphenol A And Epichlorohydrin
CAS No.	66070-77-7
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Variable (Polymer) (Contact for details)
Synonyms	Epoxy Resin, Modified with Dehydrated Castor Oil Fatty Acids; DCO-FA Modified Epoxy Resin; Bisphenol A/Epichlorohydrin/Dehydrated Castor Oil Fatty Acids Copolymer; Epoxy Flexibilizer; Fatty Acid Modified Epoxy; Castor Oil Fatty Acid Epoxy Adduct; Epoxy Toughening Agent; Polymeric Epoxy Modifier
EINECS	Contact for details

Quality Control

Our production of this advanced epoxy modifier adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as epoxy equivalent weight (EEW), viscosity, acid value, and color are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all specifications is 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, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flame. Under these conditions, the product is stable for a minimum of 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Viscous liquid, clear to pale yellow
Epoxy Equivalent Weight (EEW)	Contact for details
Viscosity (at 25°C)	Contact for details
Acid Value	≤ 2.0 mg KOH/g
Color (Gardner)	≤ 4
Moisture Content	≤ 0.2%

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