Patent ID: 8067491

Claim:
A silated cyclic core polysulfide of the general formula [Y 1 R 1 S x —] m [G 1 (SR 2 SiX 1 X 2 X 3 ) a ] n [G 2 ] o [R 3 Y 2 ] p wherein: each occurrence of G 1 is independently selected from a polyvalent hydrocarbon species having from 5 to about 30 carbon atoms containing a polysulfide group represented by the general formula: [(CH 2 ) b —] c R 4 [—(CH 2 ) d S x —] e ; each occurrence of G 2 is independently selected from a polyvalent hydrocarbon species of 3 to about 30 carbon atoms containing a polysulfide group represented by the general formula: [(CH 2 ) b —] c R 5 [—(CH 2 ) d S x —] e ; each occurrence of R 1 and R 3 is independently selected from a divalent hydrocarbon fragment having from 1 to about 20 carbon atoms; each occurrence of Y 1 and Y 2 is independently selected from the group consisting of silyl (—SiX 1 X 2 X 3 ), alkoxy (—OR 6 ), hydrogen, carboxylic acid, ester (—C(═O)OR 6 ) wherein R 6 is a monovalent hydrocarbon group having from 1 to 20 carbon atoms; each occurrence of R 2 is independently selected from divalent hydrocarbon fragment having from 1 to 20 carbon atoms; each occurrence of R 4 is independently selected from a polyvalent cyclic hydrocarbon fragment of 3 to about 28 carbon atoms or a polyvalent cyclic heterocarbon fragment of 3 to about 27 carbon atoms that was obtained by substitution of hydrogen atoms equal to the sum of a +c+e; each occurrence of R 5 is independently selected from a polyvalent hydrocarbon fragment of 1 to about 28 carbon atoms or a polyvalent cyclic heterocarbon fragment of 1 to about 27 carbon atoms that was obtained by substitution of hydrogen atoms equal to the sum of c+e; each occurrence of X 1 is independently selected from the group consisting of —Cl, —Br, —OH, —OR 6 , and R 6 C(═O)O—, wherein R 6 is a monovalent hydrocarbon group having from 1 to 20 carbon atoms; each occurrence of X 2 and X 3 is independently selected from the group consisting of hydrogen, R 6 , wherein R 6 is a monovalent hydrocarbon group having from 1 to 20 carbon atoms, X 1 , wherein X 1 is independently selected from the group consisting of —Cl, —Br, —OH, —OR 6 , and R 6 C(═O)O—, wherein R 6 is a monovalent hydrocarbon group having from 1 to 20 carbon atoms, and —OSi containing groups that result from the condensation of silanols; each occurrence of the subscripts, a, b, c, d, e, m, n, o, p, and x, is independently given wherein a, c and e are 1 to about 3; b is 1 to about 5; d is 1 to about 5; m and p are 1 to about 100; n is 1 to about 15; o is 0 to about 10; and x is 1 to about 10.