Fluoroacrylate-multifunctional acrylate copolymer compositions

A method of making a coatable composition comprising reacting a fluoroacrylate with at least one co-reactant comprising two or more acrylate groups, and optionally at least one chain transfer agent, in a reaction solvent to form a copolymer;

• wherein the fluoroacrylate, co-reactant, and chain transfer agent are present in an amount up to about 35 weight percent, the weight percent being based upon the total weight of the monomers and the solvent;
• and wherein the fluoroacrylate is represented by the following general formula:
• C4F9—X—OC(O)NH—A—HNC(O)O—(CpH2p)(O)COC(R′)═CH2
• wherein:
• R=H or an alkyl group of 1 to 4 carbon atoms,
• m=2 to 8,
• Rf=CnF2n+1,
• n=1 to 5,
• y=0 to6,
• q=1 to 8,
• A=an unbranched symmetric alkylene group, arylene group, or aralkylene group,
• p=2 to 30, and
• R′=H, CH3, or F.

A method of making a coatable composition comprising:

• reacting at least one co-reactant comprising two or more acrylate groups with a fluoroacrylate comprising the reaction product of:
• (a) at least one fluorochemical alcohol represented by the formula:
• C4F9—X—OH
• wherein:
• R=hydrogen or an alkyl group of 1 to 4 carbon atoms,
• m=2 to 8,
• Rf=CnF2n+1,
• n=1 to 5,
• y=0 to 6, and
• q=1 to 8;
• (b) at least one unbranched symmetric diisocyanate;
• and
• (c) at least one hydroxy-terminated alkyl (meth)acrylate or 2-fluoroacrylate monomer having 2 to about 30 carbon atoms in its alkylene portion.