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:
Apr. 03, 1984
Filed:
Sep. 13, 1982
Applicant:
Inventors:
Assignee:
Toyo Contact Lens Co., Ltd., Nagoya, JP;
Primary Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ;
U.S. Cl.
CPC ...
252106 ; 25217422 ; 25217423 ; 252529 ; 252548 ; 252D / ;
Abstract
A cleaning composition for contact lenses, comprises, as the major component, polypropyleneoxide-polyethyleneoxide block copolymers (Pluronic type) and/or condensation products of polypropyleneoxide-polyethyleneoxide block copolymers with ethylene diamine (Tetronic type), in which said major component is a mixture of those having an ethyleneoxide content of from 35 to 55% by weight and a molecular weight of from 1,500 to 10,000 and those having an ethyleneoxide content of from 70 to 90% by weight and a molecular weight of at least 4,000.