{
  "$type": "site.standard.document",
  "description": "Disclosed are a pneumatic tire, which exhibits excellent puncture-preventing function while avoiding inconvenience aroused when a sealant layer is formed based on decomposition reaction of polyisobutylene, a process for producing the same and a sealant rubber composition. This pneumatic tire is…",
  "path": "/patents/1085850",
  "publishedAt": "2004-07-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B29C73/163",
    "YOKOHAMA RUBBER CO LTD [JP]"
  ],
  "textContent": "Disclosed are a pneumatic tire, which exhibits excellent puncture-preventing function while avoiding inconvenience aroused when a sealant layer is formed based on decomposition reaction of polyisobutylene, a process for producing the same and a sealant rubber composition. This pneumatic tire is provided with the sealant layer in a region of the inner surface of the tire which corresponds at least to a tread. The sealant layer 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. 5 to 50 parts by weight of a liquid ethylene/ alpha -olefin copolymer, liquid polybutadiene or liquid polyisoprene are added as an adhesive of the sealant layer.",
  "title": "Pneumatic tire having a sealant layer and process for producing the same"
}