Blocked oligomeric isocyanates, their production and use
First Claim
Patent Images
1. A mixture (G), self-dispersible in water, of oligomeric isocyanates (C) reacted in part with polyethylene glycol monoalkyl ether (A), which optionally contains propyleneoxy units, and optionally with a chain extender (K) and exhaustively blocked with an isocyanate-blocking pyrazole (I).
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Accused Products
Abstract
Self-dispersible mixtures (G) of oligomeric isocyanates (C) reacted in part with polyethylene glycol monoalkyl ether (A), which optionally contains propyleneoxy units, and optionally with a chain extender (K) and exhaustively blocked with an isocyanate-blocking pyrazole (B) are useful as auxiliaries in the finishing of fibrous material with oleophobicizing and/or hydrophobicizing finishes (F) comprising fluorocarbon polymers.
18 Citations
17 Claims
- 1. A mixture (G), self-dispersible in water, of oligomeric isocyanates (C) reacted in part with polyethylene glycol monoalkyl ether (A), which optionally contains propyleneoxy units, and optionally with a chain extender (K) and exhaustively blocked with an isocyanate-blocking pyrazole (I).
- 13. A method for the application of a mixture (G), self-dispersible in water, of oligomeric isocyanates (C) reacted in part with polyethylene, glycol monoalkyl ether (A), which optionally contains propyleneoxy units, and optionally with a chain extender (K) and exhaustively blocked with an isocyanate-blocking pyrazole (B), comprising providing (G) as an auxiliary in the finishing of fibrous material with oleophobicizing and/or hydrophobicizing finishing agents (F) which are fluorocarbon-radicals-containing polymers.
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15. An aqueous composition (P) comprising (G) and (F), wherein (G) is a mixture, self-dispersible in waters of oligomeric isocyanates (C) reacted in part with polyethylene, glycol monoalkyl ether (A), which optionally contains propyleneoxy units, and optionally with a chain extender (K) and exhaustively blocked with an isocyanate-blocking pyrazole (B), and (F) is an oleophobicizing and/or hydrophobicizing finishing agent which is a fluorocarbon-radicals-containing polymer.
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17. A method for the application of an aqueous dispersion (D) of a mixture (G), self-dispersible in water, of oligomeric isocyanates (C) reacted in part with polyethylene, glycol monoalkyl ether (A), which optionally contains propyleneoxy units, and optionally with a chain extender (K) and exhaustively blocked with an isocyanate-blocking pyrazole (B), comprising providing the mixture (G) in said aqueous dispersion (D) as an auxiliary in the finishing of fibrous material with oleophobicizing and/or hydrophobicizing finishing agents (F) which are fluorocarbon-radicals-containing polymers.
Specification