Title:
NATURAL RUBBER, RUBBER COMPOSITION USING THE SAME, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2012/105681
Kind Code:
A1
Abstract:
The invention provides a natural rubber that is obtained from a natural rubber latex to which a preservative has been added and/or that is obtained by adding a preservative to the coagulation product of a natural rubber latex and setting the resulting water-containing coagulation product aside to dry for a predetermined time. A natural rubber having stable dynamic properties is obtained by preventing a reduction in molecular weight even when the natural rubber coagulation product is set aside (aged) while having a high water content. An isothiazoline compound is an example of the preservative that is used. The invention further provides a rubber composition containing the natural rubber and a tire that is produced using this rubber composition.
Inventors:
KAWASHIMA MASAHIRO (JP)
Application Number:
PCT/JP2012/052476
Publication Date:
August 09, 2012
Filing Date:
February 03, 2012
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
KAWASHIMA MASAHIRO (JP)
KAWASHIMA MASAHIRO (JP)
International Classes:
B60C1/00; C08L7/02; C08K5/47
Foreign References:
| JP2006056930A | 2006-03-02 | |||
| JP2010144001A | 2010-07-01 | |||
| JP2003313366A | 2003-11-06 | |||
| JP2001123015A | 2001-05-08 | |||
| JP2002285414A | 2002-10-03 | |||
| JP2007161925A | 2007-06-28 | |||
| JP2007204545A | 2007-08-16 | |||
| JP2007284637A | 2007-11-01 |
Other References:
See also references of EP 2671913A4
Attorney, Agent or Firm:
FUJIMOTO Eisuke et al. (JP)
Eisuke Fujimoto (JP)
Eisuke Fujimoto (JP)
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Claims:
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