Description

Acrylonitrile/Butadiene Copolymer CAS NO 9003-18-3 is a synthetic rubber material, commonly known as Nitrile Rubber (NBR), formed by the copolymerization of acrylonitrile and butadiene. This product is valued for its excellent resistance to oils, fuels, and chemicals, making it a critical material for demanding industrial applications. It is essential for manufacturers in the automotive, aerospace, oil & gas, and industrial goods sectors requiring durable, flexible seals, gaskets, hoses, and molded components.

Application

• Oil & Fuel-Resistant Seals and Gaskets: Primary material for O-rings, shaft seals, and gaskets in automotive engines, hydraulic systems, and fuel handling equipment.
• Industrial Hose and Belting: Used in the manufacture of hoses for fuel, oil, and chemical transfer, as well as conveyor belting for abrasive environments.
• Molded and Extruded Goods: Production of rolls, printer's blankets, diaphragms, and other custom-molded rubber parts requiring oil resistance.
• Adhesives and Sealants: A key polymer component in solvent-based and latex adhesives and sealants for bonding to oily surfaces.
• Footwear and Apparel: Used in oil-resistant soles, heels, and industrial protective clothing like aprons and gloves.
• Cable Jacketing and Insulation: Provides protective, flexible jacketing for cables that may be exposed to oils and chemicals.
• Sponge and Foam Products: Manufacture of closed-cell foam for seals and gaskets requiring compression set resistance.
• Modifier for Plastics and Asphalt: Acts as an impact modifier for plastics like PVC and as a polymer modifier for asphalt to improve elasticity and durability.

Basic Information

Product Name	Acrylonitrile/Butadiene Copolymer
CAS No.	9003-18-3
Molecular Formula	(C4H6·C3H3N)x
Molecular Weight	Varies (Polymer)
Synonyms	Nitrile Rubber; NBR; Acrylonitrile Butadiene Rubber; Buna-N; Butadiene-Acrylonitrile Copolymer; Acrylonitrile-Butadiene Elastomer; Nitrile Elastomer; Perbunan; Krynac; Chemigum; Paracril; Europrene N
EINECS	618-634-0

Quality Control

Our Acrylonitrile/Butadiene Copolymer is manufactured under a strict quality management system. Each batch is tested against key parameters such as acrylonitrile content, Mooney viscosity, and mechanical properties to ensure consistent performance for your applications. Certificates of Analysis (COA) detailing specific grade specifications are available upon request, and we can support compliance with relevant industry standards.

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, open flames, and strong oxidizing agents. For long-term storage, maintain under an inert atmosphere to prevent premature aging or cross-linking.

Specification

Item	Specification
Appearance	Off-white to pale yellow crumb or bale
Acrylonitrile Content	18% - 50% (Grade Dependent)
Mooney Viscosity (ML 1+4 @ 100°C)	30 - 80 (Grade Dependent)
Volatile Matter	≤ 1.0 %
Ash Content	≤ 1.5 %
Stabilizer Content	As specified per grade

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