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. 29, 2009
Filed:
Apr. 12, 2005
Chefik Habassi, Ormesson-sur-Marne, FR;
Bernard Parant, Ozoir-la-Ferriere, FR;
Chefik Habassi, Ormesson-sur-Marne, FR;
Bernard Parant, Ozoir-la-Ferriere, FR;
Essilor International Compagnie Generale d'Optique, Charenton-le-Pont, FR;
Abstract
Disclosed is a cleaning solution comprising, based on the total weight of the solution: (a) more than 50% by weight of at least one lactone (component A); (b) and 1 to 10% by weight of at least one surfactant compound (component B) having a HLB ranging from 8 to 15 and selected from the group consisting of compounds of formula wherein: Rdenotes a hydrocarbon group comprising from 1 to 20 carbon atoms; n″ is an integer from 1 to 5, X denotes a valence link, —O—, —OCH, C═O or (CH), k being an integer varying from 1 to 2; Y denotes (RO)H wherein j is an integer ranging from 2 to 40, and R is a divalent hydrocarbon group, and compounds of formula wherein l is an integer from 6 to 13 and m is an integer from 3 to 15.