| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 06.00 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Pneumatic tire contg - Air permeation prevn layer of polymer compn having an air permeation coefficient < 25 x 10 to -12 power cc.cm/ square.cm.sec.cmHg (at 30C) & Young's modulus of 1-500 MPa & comprising (A) > 10% of TP resin comp having said air permeation coefficient & Young modulus > 500 MPa & selected from: polyamide, polyester, polynitrile, poly(metha )acrylate, polyvinyl resins, cellulose resins, fluoro resins & polyimide & (B) > 10% of elastomer comp. having said air permeation coefficient & Young modulus < 500 MPa which comp. is selected from: Diene rubber, Halogen-contg rubber; Silicone rubber; S-contg rubber; Fluororubber & TP elastomers; total amount A+B > 30%; wherein "B" is dispersed in vulcanized state as discontinuous phase, in matrix of "A" in polymer compn - Layer facing at least one surface of air permeation prevn layer - Bondability imparting layer superposed between air permeation prevn layer & previous layer & comprising at least one TP resin selected from: ultra high MW PE, ethy lene-Et acrylate copolymer, ethylene-Me acrylate resin, ethylene-acrylate copolymer & maleic acid addition prodts thereof, PP & its maleic acid modified prodts., ethylene propylene copolymer & its maleic acid modified prodts etc & having critical surface tension difference between previous layer & bondability imparting layer < 3 mN/m |
| PATENT PHOTOCOPY | Available on request |
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