Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2007-08-07
2007-08-07
Pezzuto, Helen L (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S242000, C526S243000, C526S248000, C526S286000, C526S288000, C526S318400, C526S318440, C526S329300, C526S329400, C526S342000
Reexamination Certificate
active
11027602
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:in-line-formulae description="In-line Formulae" end="lead"?RfX—OC(O)—C(R)═CH2,in-line-formulae description="In-line Formulae" end="tail"?wherein Rfrepresents 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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DiZio James P.
Kinning David J.
Moore George G. I.
3M Innovative Properties Company
Pezzuto Helen L
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