Patent · US Expired

Process for obtaining wash-and cleaning resistant textile finishes with reactive perfluoroalkyl-containing (co) polymers and/or precondensates and a blocked isocyanate compound

US4834764A · kind A · utility

21Cited by

11References

10Claims

0Family size

Assignee

Ciba-Geigy · US

Inventors

Hans Deiner · Neusäß, DE
Bernhard Sandner · Geretsried, DE
Franz Mosch · Gessertshausen, DE
Willy Bernheim · Diedorf, DE

Key dates

Filing date	Nov 20, 1987
Grant date	May 30, 1989
Priority date	—
Expiry date	Nov 20, 2007

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06M15/295
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a process for obtaining wash- and cleaning-resistant textile finishes by impregnating with customary reactive perfluoroalkyl-containing (co)polymers and/or precondensates in aqueous dispersion and concluding heating, wherein the dispersions have NCO-containing compounds which have a molecular weight of at least 450 and/or contain a diphenylmethane-based polyisocyanate mixture in blocked form. The process according to the invention has made it possible to equip textiles with water-repellant and oil-repellant finishes which are very highly wash- and cleaning-resistant.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.