Fluoropolymer compositions and treated substrates

Details Fluoropolymer compositions and treated substrates Fluoropolymer compositions and treated substrates

2011-06-28

2011-06-28

Cano, Milton I (Department: 1763)

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...

C528S045000, C528S069000, C528S070000, C528S076000, C008S115600, C008S115640, C008S115670, C008S115510

Reexamination Certificate

active

07968669

ABSTRACT:
A polymer having at least one carbamate linkage prepared by: (i) reacting (a) at least one diisocyanate, polyisocyanate, or mixture thereof, and (b) at least one fluorinated compound selected from the formula (I):in-line-formulae description="In-line Formulae" end="lead"?Rf(CH2)x[(CF2CF2)y(CH2CH2)z]m(R1)r-xH  (I)in-line-formulae description="In-line Formulae" end="tail"?wherein Rfis a perfluoroalkyl group having 1 to about 6 carbon atoms;the total number of carbons in said formula (I) excluding (R1)r-XH ranges from about 8 to about 22;and (ii) optionally reacting with (c) water, a linking agent, or a mixture thereof.

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