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:
Nov. 12, 1991
Filed:
Oct. 31, 1990
Applicant:
Inventors:
Assignee:
Syremont S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 49 ; 528 60 ; 528 65 ;
Abstract
Water-dilutable fluorinated polyurethanes obtained from the reaction of at least one diisocyanate with at least one hydroxy-capped perfluoropolyether having a molecular weight comprised within the range of from 400 to 7000 with at least one polyol with a hydroxy functionality higher than, or equal to, 2, supporting at least one ionizable group and therefore with at least one hydroxy compound with a functionality of at least 1. Use of these products in the treatment of lithoidal products.