Nipol 1442 Acrylonitrile butadiene polymer 9003-18-3 Zeon Chemical Rubber - Elastomer >> Butadiene-acrylonitrile / Nitrile rubber, NBR ADHESIVE Crumb rubber with talc partitioning agent. Used in coal tar and asphalt modification Nipol 1442 is a copolymer of butadiene and acrylonitrile with medium-high acrylonitrile content. Nipol 1442 shall be in the form of nominal 1/4" three-dimensional chips containing approximately 5% mineral dusting agent to prevent agglomeration. It shall be free from foreign material considered objectionable for normal applications. Non-crosslinked butadiene acrylonitrile copolymer with talc partitioning agent. Possesses medium-high ACN content. Used in adhesives.