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:
Sep. 16, 2025
Filed:
Jun. 23, 2022
Applicant:
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Inventors:
Assignee:
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 39/00 (2006.01); C08K 3/04 (2006.01); C09J 11/04 (2006.01); C09J 109/00 (2006.01); A63B 102/02 (2015.01);
U.S. Cl.
CPC ...
C08K 3/04 (2013.01); A63B 39/00 (2013.01); C09J 11/04 (2013.01); C09J 109/00 (2013.01); A63B 2039/006 (2013.01); A63B 2102/02 (2015.10); A63B 2209/00 (2013.01);
Abstract
An adhesive for a tennis ball of the present disclosure includes base rubber and a filler. The base rubber contains, as a main component thereof, liquid rubber having a number average molecular weight of not less than 10,000. The filler has an average nitrogen specific surface area of not less than 40 m/g. A tennis ball of the present disclosure includes a hollow core made of a rubber material. The core includes two hemispherical half cores. The two half cores are adhered to each other by using the adhesive for a tennis ball.