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:
Apr. 20, 2021
Filed:
Apr. 26, 2017
Applicant:
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Inventors:
Ai Matsuura, Kobe, JP;
Lucksanaporn Tarachiwin, Rayong, TH;
Kamalin Kanyawararak, Rayong, TH;
Hathainat Kum-Ourm, Rayong, TH;
Masatoshi Kobayashi, Kobe, JP;
Takehiro Kitaura, Kobe, JP;
Assignee:
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 7/00 (2006.01); B60C 1/00 (2006.01);
U.S. Cl.
CPC ...
C08L 7/00 (2013.01); B60C 1/00 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01);
Abstract
The invention provides natural rubbers having improved processability and/or abrasion resistance, rubber compositions containing the natural rubbers, and pneumatic tires formed from the rubber compositions. The invention relates to a natural rubber which shows aH-NMR spectrum where the sum of peak intensities at about 4.17, 3.94, 3.84, 3.73, 3.50, and 3.41 ppm, normalized to 10,000 for the peak intensity at about 5.11 ppm, is 8.0 or less.