PNEUMATIC TIRE

Japanese Patent JP3150561

B2

PURPOSE: To make a tire lightweight by constituting an air transmission preventing layer by means of a thin film of a resin component including the specified amount of thermoplastic polyester elastomer formed of a block copolymer of a polybutylene terephthalate and polyoxyalkylene diimide diacid having the specified weight ratio.
CONSTITUTION: An air transmission preventing layer is constituted of a thin film of a resin component including thermoplastic polyester elastomer of 20wt.% or more formed of a block copolymer of polybutylene terephthalate and polyoxyalkylene diimide diacid, in which the weight composition ratio of polybutylene terephthalate and polyoxyalkylene diimide diacid is 85 to 15 or more. When the weight ratio exceeds the ratio of 85 to 15, riding comfort of a manufactured tire is deteriorated because the Young's modulus of the resin component is excessively increased, and it is not desirable. When the mix ratio of thermoplastic polyester elastomer is 20wt.% or less, the air transmitting resistance of the resin component is decreased, and the function as the air transmission preventing layer is eliminated.

Osamu Ozawa
Noriaki Kuroda
Jiro Watanabe
Katsuhiro Ikawa
Tetsushi Kawamo

JP5593095A

March 26, 2001

March 15, 1995

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Yokohama Rubber Co., Ltd.

B29D30/06; B60C1/00; C08G73/16; C08L21/00; B60C5/14; C08L23/00; C08L27/06; C08L27/12; C08L67/00; C08L67/02; C08L79/08; C08L81/04; C08L83/04; C08L83/07; C08L87/00; (IPC1-7): B60C5/14; C08G73/16; C08L67/02

JP726127A
JP73126A
JP8217922A

Takashi Ishida (2 outside)

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