Firestone Building Products Company

Arthur m. Usmani Firestone Building Products Company 525 Congressional Boulevard Carmel, IN 46032-5607... 

Boehringer Mannheim Corporation, 47 City University of New York, 124,169 Colorado State University, 158 Delft University of Technology, 34 Eli Lilly and Company, 84 Firestone Building Products Company, 2 Georgetown University, 252 Kumamoto University School of Medicine, 194 Kyushu University, 238 National Institute of Bioscience and Human Technology, 41 National Tsing Hua University, 276 Naval Research Laboratory, 252,264 Polytechnic University, 124,169... 

Retrospective View of Vinyl-BR Properties In the 1950s, the Phillips Petroleum Company and the Firestone Tire and Rubber Company started commercial production of polybutadienes by organolithium polymerization for use in tyres. These solution BRs, having low vinyl contents (8-10%), were used in blends with emulsion SBR in tyre treads for balancing traction and wear performance properties. In the early 1970s when styrene monomer was in short supply, developments from Phillips Petroleum Company and EniChem (formerly the International Synthetic Rubber Company) showed that vinyl-BRs with 50-55% vinyl content behaved like emulsion polymerized SBR in tyre tread formulations and exhibited very similar tread wear and wet skid resistance. Tread compounds containing 45%-vinyl polybutadiene showed lower heat build-up and better blow-out resistance than E-SBR and blends of E-SBR with cw-BR. EniChem introduced trial quantities of a medium-vinyl butadiene rubber (MVBR) under the name Intolene 50 in 1973. 

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