... applied in the following materials and products.Ø Rubbers: Natural rubber (NR), Chloroprene rubber (CR), Acrylonitrile-butadiene rubber (NBR), Ethylene-propylene-diene copolymer (EPDM), cis ... -1,4-polybutadiene rubber (BP), Styrene butadiene rubber (SBR) etc..Ø Synthetic resins and plastics: Polyvinyl chloride ...