Patent ID: 7074876
Filing Date: 2006-07-11
Classification: C07F,C08J,C08K,C08L

Abstract:
1. A blocked mercaptosilane selected from the group consisting of: wherein Y is a polyvalent species (Q) Y′ is a polyvalent species (O) wherein the atom A, attached to unsaturated heteroatom E is attached to the sulfur which in turn is linked via a group G to the silicon atom; each R is chosen independently from hydrogen, straight, cyclic, or branched alkyl that may or may not contain carbon-carbon double bond, an alkenyl groups, an aryl groups, and/or aralkl groups, with each R contains from 1 to 18 carbon atoms; each G is independently a monovalent or polyvalent group derived by substitution of alkyl, alkenyl, aryl, or aralkyl wherein G can contain from 1 to 18 carbon atom; wherein at least one G is polyvalent, and if G is monovalent, G can be a hydrogen atom; X is independently selected from the group consisting of —Cl, —Br, RO—, RC(═O)O—, R p is 0 to 5; r is 1 to 3; z is 0 to 2; q is 0 to 6; a is 0 to 7; b is 1 to 3; j is 0 to 1, but it may be 0 only if p is 1; c is 1 to 6; t is 0 to 5; s is 1 to 3; k is 1 to 2; with the provisos that (I) if A is carbon, sulfur, or sulfonyl, then (i) a+b is 2 and (ii) k is 1; (II) if A is phosphorous, then a+b is 3 unless both (i) c is greater than 1 and (ii) b is 1, in which case a is c+1; and (III) if A is phosphorous, then k is 2 and G is a monovalent or polyvalent group derived by substitution of alkyl, alkenyl, aryl, or aralkyl wherein G contains from 1 to 18 carbon atoms.