Patent ID: 6750277
Filing Date: 2004-06-15
Classification: C08K,C09K,D06M

Abstract:
A composition comprising(A) a copolymer which comprises (I) repeating units which are derived from a monomer having a fluoroalkyl group, a carbon-carbon double bond, and optionally a urethane or urea bond, (II) repeating units which are derived from a monomer having a urethane or urea bond and one carbon-carbon double bond, but no fluorine atom, (III) repeating units which are derived from a monomer having a carbon-carbon double bond, the homopolymer of said monomer having a glass transition temperature (Tg) of 50Â° C. or less, (IV) repeating units which are derived from a monomer having a hydrophilic group and a carbon-carbon double bond, and (V) repeating units which are derived from a monomer having a chlorine atom and a carbon-carbon double bond and (B) a film-forming auxiliary consisting of an organic solvent, which dissolves or swells the copolymer, wherein said film-forming auxiliary (B) has a solubility parameter (sp) at 25Â° C. in the range between 8 and 11, said film-forming auxiliary (B) is at least one solvent selected from the group consisting of alcohols, glycol ethers, linear or cyclic silicones, esters, diesters, ketones and ethers, and the composition is in the form of an aqueous dispersion of the copolymer dispersed in a medium comprising water in the presence of a nonionic, cationic or anionic emulsifier.