Patent ID: 6114045
Filing Date: 2000-09-05
Classification: C09D,Y10T

Abstract:
Surface coating film based on a polymer containing a (meth)acrylic monomer which is hydrophobic, comprising the following properties:a breaking elongation of greater than 1000%,a surface tack of less than 95 J/m.sup.2 anda contact angle with a water drop of greater than 90.degree.,wherein said film further comprises:from 60 to 99.5% by weight of units resulting from one or more monomers (A) selected from the group I consisting of:(meth)acrylic esters selected from the group consisting of methyl methacrylate, butyl methacrylate and 2-ethylhexyl acrylate,(meth)acrylic acid,acrylamide andstyrene, and from 0.5 to 40% by weight of one or more monomers (B) selected from the group II consisting of:polyfluoromonomers (B.sub.1) satisfying the formula: ##STR3## wherein R.sub.1 represents a hydrogen atom or an alkyl radical containing from 1 to 4 carbon atoms, R.sub.2 represents a perfluoroalkyl radical with straight or branched chain containing from 1 to 16 carbon atoms, X represents a divalent sequence bonded to 0 by a carbon atom and including one or more oxygen, sulphur and nitrogen atoms, and(meth)acrylic monomers (B.sub.2) satisfying the formula: ##STR4## wherein R.sub.3 represents an alkyl radical containing from 8 to 30 carbon atoms.