Patent ID: 8609877

Claim:
A rubber composition comprising (a) at least one rubber component, (b) at least one filler and (c) an effective amount of at least one cyclic and bridging dialkoxy silane composition comprising at least one component having a chemical structure selected from the group consisting of: wherein: each occurrence of the —SiX u Z b v Z c w group is independently selected from the group consisting of —SiXZ c , —SiZ b Z c , —SiX 2 Z b , —SiXZ b 2 and —SiZ b 3 ; each occurrence of R is independently selected from the group consisting of hydrogen, straight, cyclic or branched alkyl group, alkenyl group, aryl group, and aralkyl group, with each R, other than hydrogen, containing from 1 to 18 carbon atoms; each occurrence of G is independently selected from the group consisting of hydrogen, a monovalent alkyl, alkenyl, aryl or aralkyl group containing from 1 to 30 carbon atoms, and a polyvalent group containing from 1 to 30 carbon atoms derived by substitution of alkyl, alkenyl, aryl or aralkyl group; each occurrence of X is independently selected from the group consisting of —Cl, —Br, R 1 O—, R 1 O(R 4 CR 5 ) f O—, R 1 C(═O)O—, R 1 R 2 C═NO—, R 1 R 2 NO—, R 1 R 2 N—, —R 1 , and —(OSi R 1 R 2 ) t (OSi R 1 R 2 R 3 ), wherein each occurrence of R 1 , R 2 and R 3 is independently R; each occurrence of Z b , which forms a bridging structure between two different silicon atoms, is independently selected from the (—O—) 0.5 consisting of [—O(R 4 CR 5 ) f O—] 0.5 , wherein each occurrence of R 4 and R 5 is independently R; each occurrence of Z c , which forms a cyclic structure with a single silicon atom, is independently given by —O(R 4 CR 5 ) f O— wherein each occurrence of R 4 and R 5 is independently R; each occurrence of the subscripts, u, n, v, w, f, p, r, q, j, p, t, s, and k is independently given by u is 0 to 3; n is 1 to 100, with the proviso that when n is greater than 1, v is greater than 0 and all the valences for Z b have a silicon atom bonded to them; v is 0 to 3; w is 0 to 1 with the proviso that u+v+2w is 3; f is 1 to 15; p is 0 to 5; r is 1 to 3; q is 0 to 6; i is 0 to 1, with the proviso that when j is 0, p is 1; t is 0 to 50; s is 1 to 3; and k is 1, wherein each of the above structures comprise at least two hydrolysable bridging dialkoxy group, Z b , or at least one hydrolysable cyclic dialkoxy group, Z c .