Description

2-Propenenitrile, Polymer With 1,3-Butadiene, Carboxy-Terminated, Polymer With 2,2-(2,2-Dimethyl-1,3-Propanediyl)Bis(Oxymethylene)Bisoxirane is a specialized, high-performance reactive polymer designed for advanced material synthesis. This compound matters for its unique combination of a nitrile-butadiene rubber (NBR) backbone with reactive carboxy and epoxy termini, enabling precise cross-linking and property modification. It is essential for industrial R&D and production teams in the coatings, adhesives, sealants, and elastomers (CASE) sectors, as well as for manufacturers of advanced composites and impact modifiers seeking to enhance material toughness, adhesion, and chemical resistance.

Application

• Advanced Adhesives & Sealants: As a reactive toughening agent and cross-linker to improve peel strength, flexibility, and environmental resistance in structural and specialty formulations.
• High-Performance Coatings: Used in epoxy and polyurethane coating systems to enhance impact resistance, adhesion to difficult substrates, and durability against chemicals and abrasion.
• Elastomer & Rubber Modification: Incorporated into nitrile rubber (NBR) or other elastomer matrices to tailor mechanical properties, improve oil resistance, and facilitate covalent bonding within polymer networks.
• Composite Materials: Serves as an interfacial modifier or compatibilizer in fiber-reinforced plastics and composite materials to improve stress transfer and fracture toughness.
• Polymer Blends & Alloys: Acts as a reactive compatibilizer to improve the miscibility and performance of polymer blends, reducing phase separation and enhancing overall material properties.
• Encapsulants & Potting Compounds: Utilized in electronic and electrical applications to formulate resilient, protective encapsulants with excellent thermal and mechanical shock absorption.

Basic Information

Product Name	2-Propenenitrile, Polymer With 1,3-Butadiene, Carboxy-Terminated, Polymer With 2,2-(2,2-Dimethyl-1,3-Propanediyl)Bis(Oxymethylene)Bisoxirane
CAS No.	68909-14-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details (Polymer)
Synonyms	Carboxy-terminated acrylonitrile-butadiene-epoxy adduct; Epoxy-functionalized CTBN; CTBN-epoxy resin adduct; Reactive liquid nitrile rubber with epoxy groups; Carboxyl-terminated butadiene-acrylonitrile copolymer reacted with diglycidyl ether of neopentyl glycol; Epoxidized CTBN; NBR-epoxy hybrid polymer; CAS 68909-14-8
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch is characterized for critical parameters including epoxy equivalent weight (EEW), acid value, acrylonitrile content, and viscosity to guarantee batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) with full specifications are available upon request. Our manufacturing processes adhere to ISO 9001 quality management principles, and the product is manufactured in compliance with REACH regulations for the global market.

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/59-77°F). This product is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen) after opening to prevent degradation and maintain reactivity. Keep away from heat, sparks, and open flame. For long-term storage, refrigeration may be recommended; please consult the specific technical data sheet.

Specification

Item	Specification
Appearance	Viscous Liquid
Color	Amber to Light Yellow
Epoxy Equivalent Weight (EEW)	Contact for details
Acid Value	Contact for details
Acrylonitrile Content	Contact for details
Viscosity @ 25°C	Contact for details
Identification (IR)	Conforms

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