Process of production of pneumatic tire
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsHiroyuki Kaido, Kazuto Yamakawa, Jiro Watanabe, Noriaki Kuroda, Gou Kawaguchi
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Abstract
A process for producing a pneumatic tire using, as an air permeation preventive layer, a strip-shaped or cylindrical-shaped single-layer or multiple-layer thermoplastic film, comprising: applying, to at least a part of the joining portion of the thermoplastic film or tire member facing the thermoplastic film, a tackifier-adhesive composition containing a polymer component having an absolute value of the difference of the critical surface tension with the rubber component of the tire member and the polymer component of the surface layer of the thermoplastic film of not more than 6 mN/m, respectively.
Claims18
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.
In a process for producing a pneumatic tire having a inner tire member containing a rubber component and, as an air permeation preventive layer, a cylindrical-shaped single-layer or multiple layer film, said thermoplastic film extending circumferentially around and having one surface in contact with an inner side of said tire member to form said layer, the improvement comprising:
- applying 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 said one surface of the 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.
Dependencies are inferred from the claim text.