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. 08, 2019
Filed:
Oct. 18, 2017
Applicant:
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Inventor:
Sumiko Miyazaki, Kobe, JP;
Assignee:
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/22 (2006.01); C08K 3/013 (2018.01); B60C 1/00 (2006.01); C08J 5/04 (2006.01); C08L 9/00 (2006.01); C08J 3/20 (2006.01); C08J 5/02 (2006.01); C08L 21/02 (2006.01);
U.S. Cl.
CPC ...
C08J 3/226 (2013.01); B60C 1/00 (2013.01); C08J 3/203 (2013.01); C08J 3/22 (2013.01); C08J 5/02 (2013.01); C08J 5/045 (2013.01); C08K 3/013 (2018.01); C08L 9/00 (2013.01); C08L 21/02 (2013.01); C08J 2307/02 (2013.01);
Abstract
The present invention provides a method for producing a masterbatch and related products which enhance the dispersibility of fillers in rubber to improve rubber physical properties such as tensile strength, rigidity, and fuel economy. Provided is a method for producing a masterbatch, including: step (1) of mixing a rubber latex having a zeta potential of −100 to −20 mV with a filler dispersion having a zeta potential of −90 to −10 mV to prepare a latex compound; and step (2) of adjusting a zeta potential of the latex compound prepared in step (1) to −30 to 0 mV.