ACRYLIC RUBBER COMPOSITION CONTAINING DIURETHANE COMPOUND

Japanese Patent JP2010235955

A

To provide an acrylic rubber composition containing a diurethane compound, which is used as a vulcanizing agent for a crosslinkable group-containing acrylic rubber, as a vulcanizing agent, improving delay in a vulcanization rate caused by scorch inhibition, that is, achieving both of good vulcanization rate of an aliphatic diamine and good scorch stability of an aromatic diamine, and satisfying vulcanization characteristics, in particular, compression set resistance of a vulcanized product.

The acrylic rubber composition comprises 0.1-10 pts.wt. of a diurethane compound represented by general formula R2(SO2)m(CH2)nOCONH-R1-NHCOO(CH2)n(SO2)mR2, and 0.01-1 pt.wt. of 1,8-diazabicyclo[5.4.0]undecene-7 serving as a basic vulcanization accelerator per 100 pts.wt. of a polyvalent amine crosslinkable group-containing acrylic rubber. In the general formula: R1is a 1-20C linear or branched bivalent aliphatic alkylene group, bivalent alicyclic cyclo-alkylene group, or bivalent aromatic group; R2is a fluorenyl-containing group; n is 0, 1, or 2; and m is 0 or 1.

COPYRIGHT: (C)2011,JPO&INPIT

ITO DAISUKE
TATSU HARUMI
KOGANE KEISUKE
ONO HIDEYUKI

JP2010126711A

October 21, 2010

June 02, 2010

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UNIMATEC CO LTD

C08L33/08; B29C47/00; C08K5/3465; B29K21/00

JPH1180488A	1999-03-26
JPH11269336A	1999-10-05
JP2002265737A	2002-09-18

WO2008069218A1

2008-06-12

JPN7009001028; Ｊｏｕｒｎａｌ　ｏｆ　Ｍａｔｅｒｉａｌｓ　Ｃｈｅｍｉｓｔｒｙ Ｖｏｌ．１４，　Ｎｏ．３, 2004, ｐ．３３６-３４３
JPN6009008751; Ａｎｇｅｗａｎｄｔｅ　Ｃｈｅｍｉｅ，　Ｉｎｔｅｒｎａｔｉｏｎａｌ　Ｅｄｉｔｉｏｎ Ｖｏｌ．３９，　Ｎｏ．１９, 2000, ｐ．３４２５-３４２８

Toshio Yoshida
Kazuko Yoshida

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