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Patent Searching and Data


Title:
BLADDER FOR TIRE VULCANIZATION
Document Type and Number:
WIPO Patent Application WO/2014/112564
Kind Code:
A1
Abstract:
Provided is a bladder for tire vulcanization, which has excellent heat resistance and a longer service life than conventional bladders. This bladder for tire vulcanization is formed using an acrylic rubber composition which is obtained by blending at least 30-200 parts by mass of a carbon black that has an arithmetic average particle diameter of 20-30 nm as determined in accordance with JIS Z8901 and a DBP oil absorption of 70-130 ml/100 g and 0.1-5 parts by mass of an imidazole compound that serves as a crosslinking agent per 100 parts by mass of an acrylic rubber that contains 94.5-99.5% by mass of a structural unit derived from a (meth)acrylic acid alkyl ester and 0.5-5% by mass of a structural unit derived from a (meth)acrylic acid alkyl ether.

Inventors:
IKARI SATORU (JP)
ABE YASUSHI (JP)
OTSU TOSHIAKI (JP)
KAWASAKI TAKASHI (JP)
Application Number:
PCT/JP2014/050713
Publication Date:
July 24, 2014
Filing Date:
January 16, 2014
Export Citation:
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Assignee:
DENKI KAGAKU KOGYO KK (JP)
International Classes:
B29C33/02; B29C35/02; C08F220/12; C08K3/04; C08K5/3445; C08L33/06; B29L30/00
Domestic Patent References:
WO2012099117A12012-07-26
WO2011162004A12011-12-29
WO2008143300A12008-11-27
WO2012053537A12012-04-26
Foreign References:
JPH0531724A1993-02-09
JPH10130441A1998-05-19
JP2004351911A2004-12-16
Other References:
See also references of EP 2946898A4
Attorney, Agent or Firm:
WATANABE KAORU (JP)
Kaoru Watanabe (JP)
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