Water-dilutable fluorinated polyurethanes, process for preparing

Details Water-dilutable fluorinated polyurethanes, process for preparing Water-dilutable fluorinated polyurethanes, process for preparing

1990-10-31

1991-11-12

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 60, 528 65, C08G 1810

Patent

active

050649264

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.

REFERENCES:
patent: 4551498 (1985-11-01), Yeater et al.

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