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. 02, 1997
Filed:
Aug. 16, 1995
Applicant:
Inventors:
Assignee:
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427164 ; 427168 ; 427169 ; 4273855 ; 427299 ; 427387 ; 4273977 ; 4274071 ; 4274121 ; 4274125 ; 4274192 ;
Abstract
A process for producing a plastic lens is disclosed, which comprises the steps of: providing a primer layer comprising a polyurethane on the surface of a plastic lens substrate; subsequently providing a hard coat layer comprising a silicone resin on the surface of the primer layer; and then providing a single-layer or multi-layer anti-reflection coating on the surface of the hard coat layer by depositing an inorganic material, wherein the polyurethane used for providing the primer layer is a thermosetting polyurethane.