Description

2-Propenenitrile, polymer with 1,3-butadiene, carboxy-terminated, poly mer with bisphenol A, epichlorohydrin and N-(4-(oxiranylmethoxy)phenyl )-N-(oxiranylmethyl)oxiranemethanamine CAS NO 67873-89-6 is a specialized, multi-component epoxy-terminated polymer designed for high-performance applications. This advanced material is engineered to deliver exceptional toughness, chemical resistance, and strong adhesion properties. It is primarily utilized by formulators in the coatings, adhesives, and advanced composite industries seeking to enhance the durability and performance of their final products.

Application

• High-Performance Coatings: Used as a toughening agent and adhesion promoter in industrial, marine, and protective epoxy coatings.
• Structural Adhesives: A key component in formulating epoxy-based adhesives for aerospace, automotive, and construction, providing improved peel strength and impact resistance.
• Fiber-Reinforced Composites: Acts as a matrix resin or modifier in carbon fiber and glass fiber composites, enhancing interlaminar fracture toughness.
• Electronic Encapsulants: Employed in potting and encapsulation compounds to protect sensitive electronic components from moisture and mechanical stress.
• Tooling and Molding Compounds: Suitable for producing durable molds, fixtures, and master models that require dimensional stability and chemical resistance.
• Civil Engineering: Used in grouts, mortars, and concrete repair systems where superior bonding to old concrete and metal substrates is critical.

Basic Information

Product Name	2-Propenenitrile, polymer with 1,3-butadiene, carboxy-terminated, poly mer with bisphenol A, epichlorohydrin and N-(4-(oxiranylmethoxy)phenyl )-N-(oxiranylmethyl)oxiranemethanamine
CAS No.	67873-89-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Epoxy-modified acrylonitrile-butadiene rubber; Carboxyl-terminated nitrile rubber (CTBN) epoxy adduct; Epoxy-terminated ATBN; Toughening agent for epoxy resins; Reactive liquid polymer; Epoxy resin toughener; CAS 67873-89-6; ATBN-epoxy adduct
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to strict quality management systems. Each batch is characterized for critical parameters including epoxy equivalent weight (EEW), viscosity, carboxyl content, and rubber phase morphology to ensure consistent performance as a toughening modifier. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and R&D processes.

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 moisture absorption, which can affect reactivity and properties.

Specification

Item	Specification
Appearance	Viscous liquid
Color	Amber to brown
Epoxy Equivalent Weight (EEW)	Contact for details
Viscosity @ 25°C	Contact for details
Acrylonitrile Content	Contact for details
Carboxyl Content	Contact for details
Volatile Matter	< 1.0%

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