Patent ID: 6426120
Filing Date: 2002-07-30
Classification: C09J,D21H,Y10T

Abstract:
A process for the treatment of a cellulose substrate to reduce the penetration of adhesive-resistant agent into the substrate and/or to decrease the sensitivity to water of the substrate comprising:contacting the cellulose substrate with an aqueous emulsion comprising an acrylic polymeric material and further comprising a grafted functionalized polyorganosiloxane comprising polymer chains comprising residues of at least one ethylenically unsaturated monomer (a) capable of being polymerized by the radical polymerization grafted on a functionalized polyorganosiloxane comprising units of the following formula (I): RaYbXcSiO(4âˆ’aâˆ’bâˆ’c)/2 wherein R is C1&boxH;C18 alkyl, C2-C20 alkenyl or C6-C12 aryl, optionally substituted with halogen; X is a reactive function linked to Si by Siâ€”C or Siâ€”Câ€”O bond; Y is ethylenically unsaturated hydrocarbon group, optionally containing O or N heteroatom, linked to Si by Siâ€”C bond and capable to react radically with the unsaturated monomer (a); a, b and c are 0 to 3 and a+b+c=3; and the content of SiO4/2 is less than 30%.