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:
Sep. 16, 1986
Filed:
Jun. 11, 1985
Applicant:
Inventors:
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02C / ;
U.S. Cl.
CPC ...
351159 ; 351166 ; 427160 ; 427164 ; 427307 ; 427322 ; 4274121 ; 4274124 ; 4274125 ; 427402 ;
Abstract
An improved synthetic resin opthalmic lens and a method for treating the surface of the lens are provided. The lens is formed by polymerizing at least one bis(allyloxycarbonyloxy-alkoxy) dihalide-phenyl alkane and one bifunctional allyl compound, optionally with a bis(allylcarbonate) compound. The lens is chemically treated with an aqueous solution of polyethyleneglycol and an alkali metal hydroxide and a surface hard coat is formed on the treated surface.