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:
Dec. 26, 2023
Filed:
Apr. 04, 2019
Applicant:
Nof Corporation, Tokyo, JP;
Inventors:
Yosuke Matsuoka, Kawasaki, JP;
Akane Katori, Kawasaki, JP;
Norio Iwakiri, Kawasaki, JP;
Shu Takashima, Kawasaki, JP;
Ryuya Gotanda, Kawasaki, JP;
Nobuyuki Sakamoto, Kawasaki, JP;
Assignee:
NOF CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/20 (2006.01); C08F 290/06 (2006.01); C08F 290/14 (2006.01); C08G 77/30 (2006.01); C08G 77/395 (2006.01); G02C 7/04 (2006.01);
U.S. Cl.
CPC ...
C08F 290/068 (2013.01); C08F 290/148 (2013.01); C08G 77/20 (2013.01); C08G 77/30 (2013.01); C08G 77/395 (2013.01); G02C 7/04 (2013.01);
Abstract
Provided is a monomer suitable for application to an ophthalmic device, the monomer showing high surface hydrophilicity, a high oxygen transmissibility, and appropriate mechanical strength when copolymerized with a polymerizable monomer, such as a hydrophilic monomer. It has been recognized that a phosphorylcholine group-containing polysiloxane monomer can solve the problems.