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Title:
POLYMER COMPOSITION FOR TIRE AND PNEUMATIC TIRE MADE THEREOF
Document Type and Number:
Japanese Patent JP3217239
Kind Code:
B2
Abstract:

PURPOSE: To obtain a polymer composition which is used for the air permeation preventing layer of a pneumatic tire, excellent in a balance between air permeation resistance and flexibility and can give a lightweight tire.
CONSTITUTION: The polymer composition for tires, comprising 10wt.% or above, based on the entire weight of the polymer component, at least one thermoplastic resin (A) having an air permeability coefficient of 25×10-12cc.cm/cm2.sec.cmHg or smaller and a Young's modules of above 500MPa, 10wt.% or smaller, based on the entire weight of the polymer component, at least one elastomer component (B) having an air permeability coefficient of larger than 25×1012cc.cm/ cm2.sec.cmHg and a Young's modulus of 500MPa or smaller, the total amount of components A and B being at least 30wt.% based on the entire weight of the polymer component, and having an air permeability coefficient of 25×10121 cc.cm/cm2.sec.cmHg or smaller and a Young's modulus of 1-500MPa; and the pneumatic tire made thereof.


Inventors:
Tetsushi Kawamo
Osamu Ozawa
Jiro Watanabe
Noriaki Kuroda
Katsuhiro Ikawa
Application Number:
JP15035395A
Publication Date:
October 09, 2001
Filing Date:
June 16, 1995
Export Citation:
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Assignee:
Yokohama Rubber Co., Ltd.
International Classes:
B60C5/14; B29D30/06; C08L21/00; C08L101/00; (IPC1-7): C08L21/00; B60C5/14; C08L101/00
Domestic Patent References:
JP1314164A
JP770372A
JP4503964A
Other References:
【文献】米国特許4928741(US,A)
Attorney, Agent or Firm:
Takashi Ishida (2 outside)