Outline
           Outline
           Introduction
           Tire Production
           Overview of Tread Separation Problem
           Legal Matters
           Conclusion/Questions
                                              CE 435 -- Intoduction to Polymers                                2
           Introduction
           Introduction
       Charles Goodyear 1800 – 1860
             –1821: Went into hardware business
             –1833: Started making rubber goods
             –1834: Failure in first rubber venture
             –1837: Eliminated some of the rubber defects
             –1838: Bought patent from partner
             –1844: Discovered Vulcanization
                                              CE 435 -- Intoduction to Polymers                                3
            Tire Production
             Tire Production
        Statistics:
                                                                       1999                          1998
                                                             Tire Sales     % of Total     Tire Sales    % of Total
                                Co./Headquarters
                                                            (Millions $)   Corp. Sales    (Millions $)   Corp. Sales
                                Bridgestone Corp.              13,500.00       74%          12,634.80        74%
                                    Tokyo, Japan
                                 Michelin et Cie.              13,500.00       92%          12,916.30        93%
                               Clermont-Ferrand, France
                           Goodyear Tire & Rubber Co.          11,515.60       85%           11,311.00       85%
                                  Akron, Ohio/USA
                                 Continental A.G.              4,900.00        50%           4,334.00        58%
                                  Hanover, Germany
                         Sumitomo Rubber Industries Ltd.       3,413.80        76%           3,750.00        75%
                                    Kobe, Japan
                                   Pirelli S.p.A.              2,725.20        40%           3005.8          49%
                                     Milan, Italy
                            Yokohama Rubber Co. Ltd.           2,408.20        70%           2193.5          70%
                                    Tokyo, Japan
                            Source: http://www.rubbernews.com/subscriber/charts/global.html
                                                    CE 435 -- Intoduction to Polymers                                        4
           Raw Materials 
           Raw Materials 
           Fabric (steel, polyester, nylon, etc.)
           Rubber (synthetic, natural, or blends)
           Reinforcing Chemicals (silica, resins, etc.)
           Anti-Degradant (Ozonants, paraffin waxes)
           Adhesion Promoters (brass, cobalt salts)
           Curatives (cure accelerators, activators, sulfur)
           Processing Oils (Oils, Tackifiers, Softeners)
                                              CE 435 -- Intoduction to Polymers                                5
      Processing & Production
      Processing & Production
      Mix Process Oils, Rubber, Reinforcers, 
         Accelerators, & Anti-Degradants
      Coatings
         – Fabric
         – Steel Belt
      Bead
                         CE 435 -- Intoduction to Polymers  6