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:
Jun. 11, 2024
Filed:
Jul. 08, 2022
Applicant:
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Inventors:
Hirofumi Konishi, Kobe, JP;
Toshikazu Kondo, Kobe, JP;
Masayoshi Kashibe, Kobe, JP;
Hideyuki Shigemoto, Kobe, JP;
Assignee:
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 36/06 (2006.01); A61M 5/32 (2006.01); C08F 210/10 (2006.01); C08F 236/08 (2006.01); C08K 3/36 (2006.01); C08K 5/14 (2006.01); C08K 5/3492 (2006.01);
U.S. Cl.
CPC ...
C08F 36/06 (2013.01); A61M 5/3202 (2013.01); C08F 210/10 (2013.01); C08F 236/08 (2013.01); C08K 3/36 (2013.01); C08K 5/14 (2013.01); C08K 5/3492 (2013.01); C08K 2201/006 (2013.01); C08K 2201/019 (2013.01);
Abstract
A medical rubber composition can contain, comprise, consist, or consist essentially of: (a) an isobutylene-isoprene rubber: (b) a diene-based rubber; and a silica having a BET specific surface area not lower than 130 m/g. An amount of (a) the isobutylene-isoprene rubber contained in 100 parts by mass of a rubber component composed of (a) the isobutylene-isoprene rubber and (b) the diene-based rubber can be larger than 30 parts by mass and smaller than 55 parts by mass.