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1. (WO2018056323) METHOD FOR PRODUCING FILM FOR TIRE

Pub. No.:    WO/2018/056323    International Application No.:    PCT/JP2017/033958
Publication Date: Fri Mar 30 01:59:59 CEST 2018 International Filing Date: Thu Sep 21 01:59:59 CEST 2017
IPC: B29C 55/28
B29C 47/06
B29C 47/78
B60C 5/14
C08L 23/00
C08L 53/02
C08L 77/00
B29K 21/00
B29K 77/00
B29L 7/00
B29L 9/00
Applicants: THE YOKOHAMA RUBBER CO., LTD.
横浜ゴム株式会社
Inventors: TOMOI Shusaku
友井 修作
SATO Shun
佐藤 峻
NOMAGUCHI Tsuyoshi
野間口 強
MITA Masaya
三田 雅也
TANAKA Ken
田中 健
IMAGAWA Makoto
今川 真
TAKADA Kenji
高田 賢司
YAMADA Hiroshi
山田 博
Title: METHOD FOR PRODUCING FILM FOR TIRE
Abstract:
Provided is a method for producing a film for a tire, said method making it possible to suppress thermal shrinkage of the film after molding. A method for producing a film 3 for a tire, said film being used in an air-permeation-preventing layer of a pneumatic tire and comprising a thermoplastic elastomer composition in which an elastomer component is dispersed in a thermoplastic resin, wherein the film 3 for a tire, which is molded by inflation molding or cast molding, is heat-treated at a heat treatment temperature that is equal to or greater than the glass transition temperature of the resin having the highest glass transition temperature of the thermoplastic resins included in the film for a tire 3, the film 3 for a tire being heat-treated while in a state wound in a roll together with a liner material 4 that regulates deformation of the film 3 for a tire.