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:
May. 05, 2020
Filed:
Oct. 06, 2016
Seed Co., Ltd., Tokyo, JP;
Kunio Jonin, Tokyo, JP;
SEED CO., LTD., Tokyo, JP;
Abstract
The purpose of the present invention is to provide a method for producing an unhydrated ophthalmic lens in which the lens surface has been made hydrophilic by imparting, using a simple technique, desired water wettability and stability against the surrounding environment to the lens surface of an unhydrated ophthalmic lens comprising a silicone compound as its constituent. This purpose can be achieved by a method for producing an unhydrated ophthalmic lens having on its lens surface a hydrophilic polymer having an alkyl halide at terminal, comprising the step of bringing an unhydrated ophthalmic lens having an alkyl halide into contact with a first aqueous solution containing a first hydrophilic monomer and a metal complex to obtain the unhydrated ophthalmic lens having on its lens surface a hydrophilic polymer having an alkyl halide at terminal.