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:
Oct. 23, 2012
Filed:
Nov. 04, 2009
Takashi Matsuda, Kanagawa-ken, JP;
Makoto Ashiura, Kanagawa-ken, JP;
Tetsuji Kawazura, Kanagawa-ken, JP;
Takashi Matsuda, Kanagawa-ken, JP;
Makoto Ashiura, Kanagawa-ken, JP;
Tetsuji Kawazura, Kanagawa-ken, JP;
The Yokohama Rubber Co. Ltd, , JP;
Abstract
A method for producing a rubber composition, the method including: preparing a modified natural rubber by releasing protein from rubber particles in a natural rubber latex by adding at least one organic compound selected from formaldehyde, paraformaldehyde, formalin, and glyoxal to the above mentioned natural rubber latex and then drying so as to include the released protein therein; and mixing at least one selected from carbon black and silica in this modified natural rubber. Such method reduces viscosity and improves molding processibility of the rubber composition, as well as reducing hysteresis loss.