Fluorochemical containing low adhesion backsize
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Abstract
In one aspect, the invention provides a water-based release coating composition comprising a mixture of (A.) from about 5 to about 100 wt % of a polymer comprising the reaction product of (a.) from 1 to about 15 wt % of a fluorinated monomer selected from the group consisting of monomers according to the general formula:
RfX—OC(O)—C(R)═CH2,
wherein Rf represents a perfluorinated aliphatic group having 3 or 4 carbon atoms, X is an organic divalent linking group, and R represents a hydrogen or methyl group, (b.) from about 40 to about 70 wt % of an alkyl (meth)acrylate, wherein the alkyl group contains from 16 to 22 carbon atoms, (c.) from about 3 to about 20 wt % of (meth)acrylic acid, (d.) from about 20 to about 40 wt % acrylonitrile, and (e.) from 0 to about 15 wt % of vinyl monomer, other than acrylonitrile, wherein the sum of (a.) through (e.) equals 100%; and (B.) from 0 to about 95 wt % of an extender polymer, wherein the sum of (A.) and (B.) is 100% and wt % is based on the total amount of solids in the composition.
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Citations
46 Claims
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1-20. -20. (canceled)
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21. A release polymer consisting of the reaction product of
(a) from 1 to about 15 wt % of a fluorinated monomer selected from the group consisting of monomers according to the general formula: -
Rf—
X—
OC(O)—
C(R)═
CH2wherein Rf represents a perfluorinated aliphatic group having 3 or 4 carbon atoms, X is an organic divalent linking group, and R represents a hydrogen or methyl group;
(b) from about 40 to about 70 wt % of an alkyl (mcth)acrylate, wherein the alkyl group contains from 16 to 22 carbon atoms;
(c) from about 3 to about 20 wt % of (meth)acrylic acid;
(d) from about 20 to about 40 wt % acrylonitrile; and
(e) from 0 to about 15 wt % of vinyl monomer, other than those of (a) through (d). 2. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A water-based release composition comprising water and solids, wherein the solids comprise a release polymer consisting of the reaction product of
(a) from 1 to about 15 %wt % of a fluorinated monomer selected from the group consisting of monomers according to the general formula: -
Rf—
X—
OC(O)—
C(R)═
CH2wherein Rf represents a perfluorinated aliphatic group having 3 or 4 carbon atoms, X is an organic divalent linking group, and R represents a hydrogen or methyl group;
(b) from about 40 to about 70 wt % of an allyl (meth)acrylate, wherein the alkyl group contains from 16 to 22 carbon atoms;
(c) from about 3 to about 20 wt % of (meth)acrylic acid;
(d) from about 20 to about 40 wt % acrylonitrile; and
(e) from 0 to about 15 wt % of vinyl monomer, other than those of (a) through (d). - View Dependent Claims (32, 33, 34, 35, 36, 37)
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38. An adhesive article comprising
a backing having first and second surfaces; -
an adhesive on at least a portion of the first surface of the backing; and
a release composition on at least a portion of the second surface of the backing, wherein the release composition comprises a release polymer consisting of the reaction product of (a) from 1 to about 15 wt % of a fluorinated monomer selected from the group consisting of monomers according to the general formula;
Rf—
X—
OC(O)—
C(R)═
CH2wherein Rf represents a perfluorinated aliphatic group having 3 or 4 carbon atoms, X is an organic divalent linking group, and R represents a hydrogen or methyl group;
(b) from about 40 to about 70 wt % of an alkyl (meth)acrylate, wherein the alkyl group contains from 16 to 22 carbon atoms;
(c) from about 3 to about 20 wt % of (meth)acrylic acid;
(d) from about 20 to about 40 wt % acrylonitrile; and
(e) from 0 to about 15 wt % of vinyl monomer, other than those of (a) through (d). - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46)
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Specification