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...
Patent
1995-10-16
1997-05-13
Smith, Jeffrey T.
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...
524544, C08L 2712
Patent
active
056293720
ABSTRACT:
A clear coating composition containing about 45-80% by weight of a binder and 20-55% by weight of an organic liquid; wherein the binder contains
(A) about 40-90% by weight, based on the weight of the binder, of an acrylic polymer containing polymerized hydroxyl containing monomers of the following group of hydroxy alkyl acrylate or methacrylates having 1-4 carbon atoms in the alkyl group, and polymerized alkyl acrylates and methacrylates having 1-18 carbon atoms in the alkyl groups, or styrene or any mixtures of the above and 0.1-5.0% by weight, based on the weight of the acrylic polymer, of polymerized fluoroalkyl containing monomer represented by the formula ##STR1## where R is hydrogen or an alkyl group having 1-2 carbon atoms, n is an integer of 1-11 and R.sub.f is a fluoroalkyl containing group having at least 4 carbon atoms and (B) about 10-60% by weight, based on the weight of the binder, of an organic polyisocyanate crosslinking agent; and where a cured layer of the coating composition has a combination of a water advancing contact angle of at least 100.degree. and a hexadecane contact angle of at least 40.degree..
A process for making the acrylic fluorocarbon polymer and articles coated with the composition also are part of this invention.
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Anton Douglas R.
Darmon Michael J.
Graham William F.
Thomas Richard R.
E. I. Du Pont de Nemours and Company
Fricke Hilmar L.
Smith Jeffrey T.
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