Patent ID: 8853372

Claim:
A saccharide siloxane copolymer of formula: R 2 a R 1 (3-a) SiO—[(SiR 2 R 1 O) m —(SiR 1 2 O) n ] y —SiR 1 (3-a) R 2 a ; where each R 1 can be the same or different and each R 1 comprises hydrogen, an alkyl group, an organic group, or a group of formula R 3 -Q; Q comprises an epoxy, cycloalkylepoxy, primary or secondary amino, ethylenediamine, carboxy, halogen, vinyl, allyl, anhydride, or mercapto functionality; subscripts m and n are integers from 0 to 10,000 and may be the same or different; each subscript a is independently 0, 1, 2, or 3; subscript y is an integer such that the copolymer has a molecular weight less than 1 million; each R 2 has formula Z-(G 1 ) b -(G 2 ) c , and there is an average of at least one R 2 per copolymer molecule, where G 1 is a saccharide component comprising 5 to 12 carbon atoms, a quantity (b+c) has a value ranging from 1 to 10, and subscript b or subscript c can be 0, G 2 is a saccharide component comprising 5 to 12 carbon atoms additionally substituted with organic or organosilicon radicals, each Z is a linking group and is independently selected from the group consisting of: —R 3 —N(R 8 )—C(O)—R 4 —, —R 3 —CH(OH)—CH 2 -N(R 8 )—R 4 —, or —R 3 —CH(N(R 4 )(R 8 ))CH 2 OH; where each R 3 and each R 4 are divalent spacer groups comprising a group of formula (R 5 ) r (R 6 ) s (R 7 ) t , where at least one of subscripts r, s and t is 1, and each R 5 and each R 7 are independently either an alkylene group of 1 to 12 carbon atoms or a group of formula (R 9 O) p , where subscript p is an integer with a value ranging from 1 to 50, and each R 9 is a divalent organic group, and each R 9 O may be the same or different, each R 6 is —N(R 8 )—, where R 8 is selected from R 3 , a group of formula Z—X, an unsaturated hydrocarbon group, or a reaction product of —N(H)— with an epoxy functional group, a cycloalkylepoxy functional group, a glycidyl ether functional group, an acid anhydride functional group, or a lactone; each X is independently a divalent carboxylic acid, phosphate, sulfate, sulfonate or quaternary ammonium radical, and with the provisos that at least one of R 3 and R 4 must be present in the linking group, and each R 3 and each R 4 may be the same or different.