Compositions of crosslinkable polyurethanes

Details Compositions of crosslinkable polyurethanes Compositions of crosslinkable polyurethanes

2006-01-31

2006-01-31

Niland, Patrick D. (Department: 1714)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C427S372200, C427S385500, C428S423100, C524S839000, C524S840000

Reexamination Certificate

active

06992132

ABSTRACT:
Compositions comprising anionic ionomeric polyurethanes crosslinkable in a wide temperature range, said composition comprising the following components:I) an aqueous dispersion of a linear crosslinkable ionomeric polyurethane, containing carboxylic groups and having a perfluoropolyether structure;II) a crosslinking agent, the ratio between the equivalents of the functional groups of the crosslinking agent and of the carboxylic groups of component I) being at least 0.7 up to 1.5, preferably 0.9–1.2, said crosslinking agent being dispersible or soluble in the dispersion component I).

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