Rishiroop Rubber [International] Ltd. Offers Nitrile Rubber/Polyvinyl Chloride Blends. Rishiroop Rubber [International] Ltd. Is an ISO 9001: 2000 certified company. The Nitrile Rubber/Polyvinyl Chloride Blends of model name Vinoprene can be compounded and processed similar to NBR. It is compatible with all of the fillers, process aids, and curatives of NBR. The Nitrile Rubber/Polyvinyl Chloride Blends is available in various grades such as Vinoprene 700, Vinoprene 701, Vinoprene 707, Vinoprene 710, and Vinoprene 712. The Nitrile Rubber/Polyvinyl Chloride Blends are used in LPG Tubings, Petroleum hoses, Cable sheeting, Shoe soles, Auto parts, O-rings, seals, gaskets, and Industrial rollers.