Description

Poly(Acrylonitrile-Co-Butadiene-Co-Acrylic Acid) is a versatile synthetic terpolymer engineered for high-performance material applications. This copolymer combines the chemical resistance and strength of acrylonitrile with the elasticity of butadiene and the functionality of acrylic acid, creating a material with a unique balance of properties. It is essential for manufacturers in the adhesives, coatings, and specialty plastics industries seeking to enhance product durability and performance. The CAS number for this compound is 118578-03-3.

Application

This terpolymer's tailored properties make it suitable for a wide range of industrial applications where toughness, flexibility, and chemical resistance are required.

• Pressure-Sensitive Adhesives (PSAs): Used as a key component to provide tack, peel strength, and cohesive strength for labels and tapes.
• Industrial and Protective Coatings: Imparts excellent adhesion, abrasion resistance, and weatherability to metal, plastic, and concrete surfaces.
• Textile and Fiber Modifiers: Enhances the dyeability, moisture management, and mechanical strength of synthetic fibers.
• Impact Modifiers for Plastics: Incorporated into rigid thermoplastics like PVC or SAN to improve toughness and impact resistance.
• Binder for Non-Wovens and Paper: Provides fiber bonding strength and wet-strength properties in disposable and technical fabrics.
• Sealants and Caulks: Contributes to flexibility, adhesion, and long-term durability in construction and automotive sealants.

Basic Information

Product Name	Poly(Acrylonitrile-Co-Butadiene-Co-Acrylic Acid)
CAS No.	118578-03-3
Molecular Formula	(C₃H₃N·C₄H₆·C₃H₄O₂)ₓ
Molecular Weight	Varies by monomer ratio and polymerization degree
Synonyms	Acrylonitrile Butadiene Acrylic Acid Terpolymer; NBR-AA Terpolymer; Carboxylated Nitrile Rubber (XNBR) - Acid Type; Poly(AN-co-Bd-co-AA); 2-Propenenitrile, polymer with 1,3-butadiene and 2-propenoic acid; Acrylonitrile/Butadiene/Acrylic Acid Copolymer; NBR Carboxylic Acid Terpolymer
EINECS	Contact for details

Quality Control

Our Poly(Acrylonitrile-Co-Butadiene-Co-Acrylic Acid) is produced under a stringent quality management system. Each batch is characterized for critical parameters including monomer composition, molecular weight distribution, acid number, and solution viscosity to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance protocols.

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 open flame. For long-term storage, consider an inert atmosphere to prevent oxidation. Keep container tightly sealed when not in use to minimize moisture absorption.

Specification

Item	Specification
Appearance	White to off-white granules or powder
Acrylonitrile Content	20 - 40 %
Acrylic Acid Content	1 - 10 %
Acid Number	10 - 70 mg KOH/g
Mooney Viscosity (ML 1+4 @ 100°C)	30 - 80
Volatile Matter	≤ 1.0 %
Ash Content	≤ 1.0 %

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