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. 20, 2017
Filed:
Dec. 28, 2015
Benq Materials Corporation, Taoyuan, TW;
Fan-Dan Jan, Taoyuan, TW;
Mei-Yun Chang, Taoyuan, TW;
BenQ Materials Corporation, Taoyuan, TW;
Abstract
The disclosure is related to colored contact lenses including a transparent protective layer, a colored layer and a lens layer, wherein the colored layer is between the transparent protective layer and the lens layer. A composition for forming the transparent protective layer includes at least one first hydrophilic monomer and a first thickener. A composition for forming the colored layer includes at least one second hydrophilic monomer, an adhesive resin, a second thickener and a colorant. At least one of the thickeners used for forming the transparent protective layer and the color layer is a modified polyvinylpyrrolidone.