Patent ID: 6402867
Filing Date: 2002-06-11
Classification: B60C,C08G,C08J,C09J

Abstract:
In a process for producing a pneumatic tire having an inner tire member containing a rubber component and, as an air permeation preventive layer, a strip-shaped single-layer or multiple layer thermoplastic film, said thermoplastic film extending circumferentially around and having one surface in contact with an inner side of said tire member, said thermoplastic film further having a joining portion where facing portions on two ends of the strip-shaped thermoplastic film meet and overlap to form said layer, the improvement comprising:applying to at least a part of the facing portions of said ends at the joining portion of said strip-shaped film and to at least a part of said one surface of said thermoplastic film a tackifier-adhesive composition containing a polymer component, wherein the tackiness between both the facing portions of said two ends of the strip-shaped film at the joining portion of the thermoplastic film and between said one surface of the thermoplastic film and the rubber component of the tire member is from 14.9 to 30N as determined from a sample having a width of 12.7 mm.