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:
Jun. 18, 1991
Filed:
Nov. 09, 1989
Applicant:
Inventors:
Cesare Prelini, Milan, IT;
Aldo Trovati, Novara, IT;
Tiziana Gambini, Castellanza, IT;
Vittorio Stefanoli, Busto Arsizio, IT;
Assignee:
Raffineria Olii Lubrificanti 'R.O.L' S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06M / ; D06P / ; D06P / ; C08G / ;
U.S. Cl.
CPC ...
8554 ; 8543 ; 8606 ; 8680 ; 8917 ; 8918 ; 8922 ; 8924 ; 8927 ; 8928 ;
Abstract
Process for improving the dyeability of woven or non-woven textiles by treating them with an aqueous dispersion of polyurethanes containing in the macromolecule randomly distributed cationic groups, such as ammonium, in quantity between 15 and 100 milliequivalents for 100 grams of dry polyurethane, said treatment being carried out before dyeing.