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Patent Searching and Data


Title:
METHOD FOR PRODUCING RUBBER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2019/035443
Kind Code:
A1
Abstract:
The purpose of the invention is to provide a method for producing a rubber composition including a modified conjugated diene-based polymer, the method being capable of obtaining a rubber composition that offers excellent processability and, in cases where the rubber composition includes a filler, offers excellent dispersibility of the filler. This method for producing a rubber composition comprises: a first step for mixing and kneading a basic compound having an acid dissociation constant of 8.0 or greater and a modified conjugated diene-based polymer that is obtained by polymerizing a monomer including a conjugated diene compound and that includes at least one type of nitrogen-containing functional group selected from the group consisting of primary amino groups, secondary amino groups, tertiary amino groups, primary amino groups formed into an onium, secondary amino groups formed into an onium and tertiary amino groups formed into an onium; and a second step for mixing and kneading the kneaded product obtained in the first step and a cross-linking agent.

Inventors:
TANI Koichiro (1-9-2 Higashi-Shinbashi, Minato-k, Tokyo 40, 〒1058640, JP)
FUNAKI Ryota (1-9-2 Higashi-Shinbashi, Minato-k, Tokyo 40, 〒1058640, JP)
KUWABARA Rikimaru (1-9-2 Higashi-Shinbashi, Minato-k, Tokyo 40, 〒1058640, JP)
MORITA Hiroyuki (1-9-2 Higashi-Shinbashi, Minato-k, Tokyo 40, 〒1058640, JP)
MATSUMOTO Takaomi (1-9-2 Higashi-Shinbashi, Minato-k, Tokyo 40, 〒1058640, JP)
Application Number:
JP2018/030198
Publication Date:
February 21, 2019
Filing Date:
August 13, 2018
Export Citation:
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Assignee:
JSR CORPORATION (1-9-2, Higashi-Shinbashi Minato-k, Tokyo 40, 〒1058640, JP)
International Classes:
C08J3/20; C08K3/36; C08K5/17; C08K5/34; C08L15/00
Foreign References:
JP2001158835A2001-06-12
JP2001131344A2001-05-15
JP2012087167A2012-05-10
JP2012062437A2012-03-29
JP2012062383A2012-03-29
JP2010185053A2010-08-26
JP2000344954A2000-12-12
Attorney, Agent or Firm:
FUJIMOTO Nobuo et al. (4th Floor Hamamatsu-cho Suzuki Building, 1-2-11 Hamamatsu-cho, Minato-k, Tokyo 13, 〒1050013, JP)
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