METHOD FOR LOWERING DYNAMIC-TO-STATIC MODULUS RATIO OF VULCANIZED RUBBER

WIPO Patent Application WO/2013/018815

A1

A method for lowering the dynamic-to-static modulus ratio of a vulcanized rubber, comprising the first step of kneading together a rubber component, a filler, and a compound represented by formula (I) or a salt thereof, the second step of kneading together the kneaded mixture obtained in the first step, a sulfur component and a vulcanization accelerator, and the third step of subjecting the kneaded mixture obtained in the second step to heat treatment. In formula (I), n is an integer of 0 to 10. It is preferable that the compound represented by formula (I) or salt thereof is S-(3-aminopropyl)thiosulfuric acid or a salt thereof.

UEKITA YASUO (JP)
IYAMA HIRONOBU (JP)

PCT/JP2012/069525

February 07, 2013

July 25, 2012

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SUMITOMO CHEMICAL CO (JP)
UEKITA YASUO (JP)
IYAMA HIRONOBU (JP)

C08J3/24; F16F1/36; F16F15/08

WO2010140704A1

2010-12-09

JPS60199643A	1985-10-09
JPS5817132A	1983-02-01
JPS5991140A	1984-05-25
JPS6323942A	1988-02-01
JPS6082406A	1985-05-10
JP2009138148A	2009-06-25
JP2004091505A	2004-03-25
JP2000190704A	2000-07-11
JP2006328310A	2006-12-07
JP2009040898A	2009-02-26
JP2006249361A	2006-09-21

See also references of EP 2740756A4
"Rubber Industry Handbook ", pages: 210 - 211
"Rubber Industry Handbook ", THE SOCIETY OF RUBBER SCIENCE AND TECHNOLOGY, pages: 494
"Rubber Industry Handbook ", pages: 510 - 513
"Rubber Industry Handbook", 20 January 1994, THE SOCIETY OF RUBBER SCIENCE AND TECHNOLOGY, pages: 412 - 413
"Tackirol (registered trademark) AP, V-200", TAOKA CHEMICAL CO., LTD
"Rubber Industry Handbook ", pages: 436 - 443

NAKAYAMA, Tohru et al. (JP)
Nakayama 亨 (JP)

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