Title:
RUBBER-SILICA COMPOSITE POWDER
Document Type and Number:
Japanese Patent JP3922951
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rubber-silica composite powder showing excellent productivity, capable of shortening kneading time to obtain a rubber such as a silica- containing SBR or the like and capable of giving excellent tensile strength and abrasion resistance due to good dispersion of the silica in the rubber.
SOLUTION: The rubber-silica composite powder is a composite particle obtained by spraying a mixture of a rubber latex using an anionic emulsifier, silica and a cationic activator and drying it and preferably has an average particle diameter of 50 to 500 μm measured by a vibrating screen method. The obtained rubber-silica composite powder may be kneaded as it is to give a rubber composition or it is kneaded with an unfilled rubber to produce a rubber composition having a silica content adjusted at a predetermined content.
Inventors:
Kazutaka Watanabe
Osamu Yatabe
Osamu Yatabe
Application Number:
JP2002091302A
Publication Date:
May 30, 2007
Filing Date:
March 28, 2002
Export Citation:
Assignee:
Tokuyama Corporation
International Classes:
C08L21/00; C08K3/36; C08K9/04; C09C1/28; C09C3/10; (IPC1-7): C08L21/00; C08K9/04; C09C1/28; C09C3/10
Domestic Patent References:
| JP2002241507A | ||||
| JP2001213971A | ||||
| JP2001323070A | ||||
| JP2003138025A |
Foreign References:
| WO2001010946A1 |
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