RUBBER COMPOSITION MANUFACTURING METHOD, RUBBER COMPOSITION, AND PNEUMATIC TIRE USING SAME

Title:

RUBBER COMPOSITION MANUFACTURING METHOD, RUBBER COMPOSITION, AND PNEUMATIC TIRE USING SAME

Document Type and Number:

WIPO Patent Application WO/2013/099825

Kind Code:

A1

Abstract:

Provided is a manufacturing method of a rubber composition formed by combining a rubber component (A) which comprises a natural rubber and/or a synthetic diene rubber, a filling material which contains an inorganic filling material (B), a silane coupling agent (C), and at least one type of vulcanization accelerator (D) selected from specific compounds, said method characterized by mixing the rubber composition in multiple stages: in a first mixing stage (X), a part (A') of said rubber component (A), all or a part of the inorganic filler material (B), all or a part of the silane coupling agent (C), and all or a part of the vulcanization accelerator (D) are added and mixed together, and in subsequent mixing stages, the rest (A") of the rubber component (A) is added and mixed together. This manufacturing method can increase activity of the coupling function of the silane coupling agent to obtain a rubber composition with favorably low heat generation.

Inventors:

MATSUO SHIGEAKI (JP)

Application Number:

PCT/JP2012/083353

Publication Date:

July 04, 2013

Filing Date:

December 21, 2012

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)
MATSUO SHIGEAKI (JP)

International Classes:

C08J3/20; B60C1/00; C08K3/00; C08K5/54; C08L7/00; C08L9/00

Domestic Patent References:

WO2008123306A1	2008-10-16
WO2008123306A1	2008-10-16

Foreign References:

JPS57195636A	1982-12-01
JPS57100042A	1982-06-22
JP2010514764A	2010-05-06
JP2003521575A	2003-07-15
JPH11286577A	1999-10-19
JPH0873607A	1996-03-19
JP2002521515A	2002-07-16
JP2002521516A	2002-07-16
JP2003530443A	2003-10-14
JP2003523472A	2003-08-05
JP2007154130A	2007-06-21
JP2006167919A	2006-06-29

Other References: