Patent ID: 6491981
Filing Date: 2002-12-10
Classification: C08G,C09D,C09K,D06M

Abstract:
Method for forming a hydrophobic and/or oleophobic coating and/or impregnation with low surface energy on a substrate, comprising depositing onto the substrate at least one perfluorinated polysiloxane POS A and optionally at least one functional additive B wherein the POS A carries, per molecule:one or more perfluorinated Gf grafts, which are identical to or different from one another, of formula: â€ƒin which: m=1-10 and n=0-4; the R1 radicals independently represent hydrogen or a C1-C6 alkyl and Rf1 and Rf2 are perhalogenated, one or more attaching radicals carrying at least one amine functional group fa1, and one or more Galk groups, which are identical to or different from one another, of formula (V): â€ƒin which: R12, mâ€³, nâ€³ correspond, respectively, to R1, m and n, and Rh1 is a linear or branched alkyl radical, and X corresponds to an Rh1 radical or to hydrogen or alternatively to a hydrocarbonaceous radical other than Rh1.