IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0617678
(2006-12-28)
|
등록번호 |
US7968635
(2011-06-15)
|
발명자
/ 주소 |
- York, W. Michael
- Cruse, Richard W.
- Jaeckel, Janna
- Pohl, Eric Raymond
- Joshi, Prashant G.
|
출원인 / 주소 |
|
대리인 / 주소 |
Greenblum & Bernstein, P.L.C.
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
113 |
초록
Free-flowing filler compositions containing silated cyclic core polysulfide coupling agents, and rubber and tire compositions containing the filler compositions.
대표청구항
▼
What is claimed is: 1. A tire composition for forming a tire component, the composition formed by combining at least a preformed free-flowing filler composition and at least one vulcanizable rubber selected from natural rubbers, synthetic polyisoprene rubbers, polyisobutylene rubbers, polybutadiene
What is claimed is: 1. A tire composition for forming a tire component, the composition formed by combining at least a preformed free-flowing filler composition and at least one vulcanizable rubber selected from natural rubbers, synthetic polyisoprene rubbers, polyisobutylene rubbers, polybutadiene rubbers, and random styrene-butadiene rubbers (SBR);the preformed free-flowing filler composition formed by combining at least an active filler and a first silane;the active filler including at least one of active filler selected from carbon blacks, silicas, silicon based fillers, and metal oxides present in a combined amount of at least 35parts by weight per 100 parts by weight of total vulcanizable rubber, of which at least 10 parts by weight is carbon black, silica, or a combination thereof; andthe first silane comprising at least one silated cyclic core polysulfide having the general formula[Y1R1Sx—]m[G1(—SR2SiX1X2X3)a]n[G2]o[R3Y2]p wherein:each occurrence of G1 is independently selected from a polyvalent cyclic hydrocarbon or polyvalent cyclic heterocarbon species having from 1 to about 30 carbon atoms containing a polysulfide group represented by the general formula:[(CH2)b—]cR4[—(CH2)dSx—]e;each occurrence of G2 is independently selected from a polyvalent cyclic hydrocarbon or polyvalent cyclic heterocarbon species of 1 to about 30 carbon atoms containing a polysulfide group represented by the general formula:[(CH2)b—]cR5[—(CH2)dSx—]e;each occurrence of R1 and R3 is independently selected from a divalent hydrocarbon fragment having from 1 to about 20 carbon atoms;each occurrence of Y1 and Y2 is independently selected from silyl (—SiX1X2X3), hydrogen, alkoxy (—OR6), carboxylic acid, ester (—C(═O)OR6) wherein R6 is a monovalent hydrocarbon group having from 1 to 20 carbon atoms;each occurrence of R2 is independently selected from a divalent hydrocarbon fragment having from 1 to about 20 carbon atoms that include branched and straight chain alkyl, alkenyl, alkynyl, aryl or aralkyl groups;each occurrence of R4 is independently selected from a polyvalent cyclic hydrocarbon fragment of 1 to about 28 carbon atom that was obtained by substitution of hydrogen atoms equal to the sum of a+c+e, and include cyclic and polycyclic alkyl, alkenyl, alkynyl, aryl and aralkyl groups in which a+c+e−1hydrogens have been replaced, or a polyvalent cyclic heterocarbon fragment from 1 to 27 carbon atoms that was obtained by substitution of hydrogen atoms equal to the sum of a+c+e;each occurrence of R5 is independently selected from a polyvalent cyclic hydrocarbon fragment of 1 to about 28 carbon atom that was obtained by substitution of hydrogen atoms equal to the sum of c+e and include cyclic and polycyclic alkyl, alkenyl, alkynyl, aryl and aralkyl groups in which c+e−1 hydrogens have been replaced, or a polyvalent cyclic heterocarbon fragment from 1 to 27 carbon atoms that was obtained by substitution of hydrogen atoms equal to the sum of c+e;each occurrence of X1 is independently selected from —Cl, —Br, —OH, —OR6, and R6C(═O)O—, wherein R6 is a monovalent hydrocarbon group having from 1 to 20 carbon atoms;each occurrence of X2 and X3 is independently selected from hydrogen, R6, wherein R6 is a monovalent hydrocarbon group having from 1 to 20 carbon atoms, X1, wherein X1 is independently selected from —Cl, —Br, —OH, —OR6, and R6C(═O)O—, wherein R6 is a monovalent hydrocarbon group having from 1 to 20 carbon atoms, and —OSi containing groups that result from the condensation of silanols; andeach occurrence of the subscripts, a, b, c, d, e, m, n, o, p, and x, is independently given by 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; andwherein the tire composition is formulated to be vulcanizable to form a tire component compound having a Shore A Hardness of not less than 40 and not greater than 95 and a glass-transition temperature Tg (E″max) not less than −80° C. and not greater than 0° C.
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