Title:
PROCESS FOR PRODUCING RUBBER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2013/151072
Kind Code:
A1
Abstract:
The present invention provides a process for producing a rubber composition obtained by mixing a rubber ingredient (A) comprising at least one rubber selected from natural rubber and synthetic diene rubbers, a filler comprising carbon black (B), and at least one compound (C) selected from vulcanization accelerators, the process comprising a plurality of kneading stages: in the first stage (X) of kneading, the rubber ingredient (A) and all or some of the carbon black (B) are kneaded together; and in a stage prior to the final stage of kneading, the at least one compound (C) selected from vulcanization accelerators is added and kneaded. With this rubber composition, the low heat buildup can be improved.
Inventors:
KATOU SEIICHI (JP)
Application Number:
PCT/JP2013/060132
Publication Date:
October 10, 2013
Filing Date:
April 02, 2013
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
KATOU SEIICHI (JP)
KATOU SEIICHI (JP)
International Classes:
C08J3/20; B60C1/00; C08K3/04; C08K5/36; C08L7/00; C08L9/00
Domestic Patent References:
| WO2010123072A1 | 2010-10-28 | |||
| WO2012161229A1 | 2012-11-29 | |||
| WO2012043855A1 | 2012-04-05 | |||
| WO2012137951A1 | 2012-10-11 |
Foreign References:
| JP2005272768A | 2005-10-06 | |||
| JPH1180433A | 1999-03-26 | |||
| JPH07138379A | 1995-05-30 | |||
| JPH06200043A | 1994-07-19 | |||
| JP2010514865A | 2010-05-06 | |||
| US20100317795A1 | 2010-12-16 | |||
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Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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