Patent ID: 6620881
Filing Date: 2003-09-16
Classification: C08F

Abstract:
An aqueous dispersion of polymers, the polymers comprising the following constitutents:a) from 40 to 95% by weight of one or more monomers comprising an ethylenic unsaturation, the corresponding homopolymer of which has a glass transition temperature (Tg) of less than 0Â° C., the constituent a) also optionally comprising the monomers comprising the functional groups defined in d), in a proportion of 20-50% by weight with respect to the amount defined in d); b) from 4 to 58% by weight of one or more monomers comprising an ethylenic unsaturation, the corresponding homopolymer of which has a Tg of greater than 0Â° C., (meth)acrolein being excluded from the constituent b), optionally also comprising the monomers comprising the functional groups defined in d), in a proportion of 20-50% by weight with respect to the amount defined in d); c) from 0.05 to 4% by weight of one or more monomers comprising at least two ethylenic unsaturations; d) from 0.2 to 5%, by weight of one or more monomers comprising an unsaturation of ethylenic type and at least one functional group capable of interacting at a temperature lower than 100Â° C., in a crosslinking process in the coalescence phase, the monomer d) being selected from unsaturated silane compounds.