Pneumatic tire, process for producing the same

• Main Authors: KOBAYASHI, YUICHI, MIYAWAKI, NAOYA, SEKIGUCHI, TAKUMI, FUKUTOMI, TAKASHI, NAKAKITA, ISSEI, WATANABE, KOJI, IKEGAMI, TETSUO, MAKINO, SATOSHI, MIZONE, TETSUYA, NAITO, MITSURU
• Format: Patent
• Language: English; French; German
• Published: 19.11.2008
• Subjects: ADHESIVES; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; DEVICES OR ARRANGEMENTS RELATED TO TYRES; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PERFORMING OPERATIONS; POLISHES; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; VEHICLE TYRES; VEHICLES IN GENERAL; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Disclosed is a pneumatic tire (1), which exhibits excellent puncture-preventing function while avoiding inconvenience aroused when a sealant layer is formed based on decomposition reaction of polyisobutylene, and a process for producing the same. This pneumatic tire is provided with an adhesive sealant layer (8), which is disposed in a region of an inner surface of the tire (1), which corresponds at least to a tread. The sealant layer (8) is made of an adhesive sealant obtained by heating a rubber composition containing 0.2 to 20 parts by weight of peroxide per 100 parts by weight of a rubber ingredient containing not less than 50 wt.% of polyisobutylene and a thermoplastic resin film (10) is disposed on at least one side of the sealant layer.