Release agent and product

Claim 1

A release agent comprising: (A) a polymer of at least one vinyl monomer of the formula CH.sub.2 ═CR.sub.1 COO(CH.sub.2 CHR.sub.2 O).sub.n CONHR (I) wherein R 1 and R 2 , independently from each other, represent hydrogen or a methyl group, R represents an alkyl group having at least 12 carbon atoms or a fluoroalkyl group having at least 6 carbon atoms, and n is an integer of from 1 to 6, said vinyl monomer of formula (I) being an adduct of a compound of the following formula CH.sub.2 ═CR.sub.1 COO(CH.sub.2 CHR.sub.2 O).sub.n H (II) wherein R 1 , R 2 and n are as defined above, with a compound of the following formula RNCO (III) wherein R is as defined above, (B) a copolymer of at least one vinyl monomer of general formula (I) above and at least one other monomer selected from the group consisting of stearyl acrylate, stearyl methacrylate, stearyl acrylamide, stearyl methacrylamide, vinyl stearate, stearyl vinyl ether, methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, vinyl acetate, styrene, 2-hydroxyethyl methacrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, diethylene glycol monomethacrylate, tetraethylene glycol monomethacrylate, polypropylene glycol monomethacrylate, acrylic acid, methacrylic acid, monoesters of maleic acid, monoesters of itaconic acid, crotonic acid, maleic anhydride, glycidyl methacrylate acrylonitrile, methyl vinyl ketone, and N-vinyl pyrrolidone, or (C) a mixture of said polymer (A) and said copolymer (B).