{
  "$type": "site.standard.document",
  "description": "Provided is a pneumatic tire which uses, as an inner liner layer, a laminated sheet obtained by laminating an air permeation preventing layer, made of any one of a thermoplastic resin and a thermoplastic elastomer composition containing a blend of the thermoplastic resin and an elastomer, and a tie…",
  "path": "/patents/982558",
  "publishedAt": "2013-10-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B29D30/3028",
    "YOKOHAMA RUBBER CO LTD [JP]"
  ],
  "textContent": "Provided is a pneumatic tire which uses, as an inner liner layer, a laminated sheet obtained by laminating an air permeation preventing layer, made of any one of a thermoplastic resin and a thermoplastic elastomer composition containing a blend of the thermoplastic resin and an elastomer, and a tie rubber layer, and which has high durability making it possible to prevent development of a crack in the tie rubber layer that occurs around a splice portion of the laminated sheet after the tire starts to be used. In a pneumatic tire which uses any one of a thermoplastic resin and a thermoplastic elastomer composition containing a blend of the thermoplastic resin and an elastomer for an air permeation preventing layer, a sagged portion is formed by a concavo-convex structure in the air permeation preventing layer at least between a point P and a point Q in such a shape that a length La of a straight line connecting the point P and the point Q and a length Lb of the air permeation preventing layer actually passing through the point P and the point Q satisfy a relationship of (1.03×La)¤Lb¤(1.5×La), where the point P is a point at which a perpendicular line extending from a cavity-side end A of a splice portion of the air permeation preventing layer intersects the air permeation preventing layer on a non-cavity side, and the point Q is a point at a position on the air permeation preventing layer away from the cavity-side end A of the splice portion of the air permeation preventing layer by 25 mm in a tire circumferential direction.",
  "title": "PNEUMATIC TIRE"
}