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. 31, 2024
Filed:
Apr. 17, 2020
Applicant:
Nof Corporation, Tokyo, JP;
Inventors:
Shu Takashima, Kawasaki, JP;
Koh Kobayashi, Kawasaki, JP;
Ryuya Gotanda, Kawasaki, JP;
Norio Iwakiri, Kawasaki, JP;
Yosuke Matsuoka, Kawasaki, JP;
Eiji Harata, Kawasaki, JP;
Assignee:
NOF CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 290/06 (2006.01); C08G 77/395 (2006.01); G02B 1/04 (2006.01); G02C 7/04 (2006.01);
U.S. Cl.
CPC ...
C08F 290/068 (2013.01); C08G 77/395 (2013.01); G02B 1/043 (2013.01); G02C 7/04 (2013.01);
Abstract
Provided is a monomer composition for contact lenses, which uses a polysiloxane monomer to produce a polymer that shows satisfactory surface hydrophilicity and oxygen permeability, and that is excellent in modulus and elongation at break. It has been found that a monomer composition containing a phosphorylcholine group-containing polysiloxane monomer, a monovinyl ether monomer, and the like can achieve the above-mentioned object.