The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 2010
Filed:
Jan. 19, 2007
Yuichi Ishino, Musashimurayama, JP;
Yuichi Ishino, Musashimurayama, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
The present invention makes it possible (1) to produce a natural rubber wet master batch and/or a synthetic isoprene rubber wet master batch by mixing a slurry solution of biodegraded rubber powder dispersed in water with a natural rubber latex solution and/or a synthetic isoprene rubber latex solution. Further, the present invention makes it possible (2) to produce a natural rubber wet master batch and/or a synthetic isoprene rubber wet master rubber powder with a natural rubber latex solution and/or a synthetic isoprene batch by mixing a slurry solution of dispersed carbon black and/or silica and rubber latex solution. A rubber composition having high physical properties can be obtained by adding a natural rubber master batch and/or a synthetic isoprene rubber master batch obtained by drying the natural rubber wet master batch and/or the synthetic isoprene rubber wet master batch. Further, the rubber composition containing the wet master batch obtained by the method in combination of above (1) and (2) also exhibits high physical properties.