Patent ID: 7528186
Filing Date: 2009-05-05
Classification: B60C,C08K

Abstract:
1. A tire having at least one component as a rubber composition comprised of, based upon parts by weight per 100 parts by weight rubber (phr): (A) at least one conjugated diene-based rubber; (B) about 15 to about 120 phr of particulate reinforcement comprised of precipitated silica or a combination of precipitated silica and up to about 25 phr of rubber reinforcing carbon black, and (C) from about 1 to about 15 phr of an ionically conductive compound comprised of an ionic salt having a cation moiety and an anion moiety; wherein said tire component is selected from at least one of a circumferential tire tread and a tire sidewall; wherein for said ionic compound: (D) said anion moiety is selected from 2-(2-methoxyethoxy)-ethylsulfate, acetate, benzoate, bis(2,4,4, -trimethyl-pentyl) phosphinate, bis(pentafluoroethylsulfonyl) imide, bis(trifluormethylsulfonyl) imide, alpha-cyano-4-hydroxycinnamate, decanoate, dicyanamide, ethylsulfate, hexafluoroantimonate, hexafluorophosphate, hydrogensulfate, iodide, methanesulfonate, methylsulfate, nitrate, nonafluoro-butanesulfonate, heptadecafluoro-octanesulfonate, octylsulfate, butane-1-sulfonate, propane-1-sulfonate, tetrachloroaluminate, tetrafluoroborate, thiocyanate, thiosalicylate, tosylate, trifluoroacetate, trifluoromethanesulfonate, or tris(trifluoromethylsulfonyl) methide, and said cation moiety is selected from trihexyl-tetradecyl-phosphonium, tetrabutyl-phosphonium, tetraoctyl-phosphonium, tributyl-hexacecyl-phosphonium, 1-butyl-3-methyl-imidazolium, 1,2-dimethyl-3-propyl-imidazolium, 1-ethyl-3-methyl-imidazolium, 1-allyl-3-methyl-imidazolium, 1-butyl-2,3-dimethyl-imidazolium, 1-butyl-3-methyl-imidazolium, 1-butyl-4-methyl-imidazolium, 1-ethyl-2,3-dimethyl-imidazolium, 1-ethyl-3-methyl-imidazolium, 1-hexyl-3-methyl-imidazolium, 1-methyl-3-octyl-imidazonium, 1-benzyl-3-methyl-imidazonium, 1-ethyl-3-methyl-pyrrolidinium, butyl-1-methyl-pyrrolidinium, 1-butyl-3-methyl-pyridinium, 3-methyl-1-propyl-pyridinium, 1-butyl-pyridinium, or 4-methyl-N-butyl-pyridinium, or (E) said anion moiety is comprised of 2-(2-methoxyethoxy)-ethylsulfate, acetate, benzoate, bis(2,4,4, -trimethyl-pentyl) phosphinate, bis(pentafluoroethylsulfonyl) imide, bis(trifluormethylsulfonyl) imide, alpha-cyano-4-hydroxycinnamate, decanoate, dicyanamide, hexafluoroantimonate, hexafluorophosphate, hydrogensulfate, methanesulfonate, nitrate, nonafluoro-butanesulfonate, heptadecafluoro-octanesulfonate, octylsulfate, butane-1-sulfonate, propane-1-sulfonate, tetrachioroaluminate, tetrafluoroborate, thiocyanate, thiosalicylate, tosylate, trifluoroacetate, trifluoromethanesulfonate, or tris(trifluoromethylsulfonyl) methide, and said cation moiety is selected from trihexyl-tetradecyl-phosphonium, tetrabutyl-phosphonium, tetraoctyl-phosphonium, tributyl-hexacecyl-phosphonium, 1-butyl-3-methyl-imidazolium, 1,2-dimethyl-3-propyl-imidazolium, 1-ethyl-3-methyl-imidazolium, 1-allyl-3-methyl-imidazolium, 1-butyl-2,3-dimethyl-imidazolium, 1-butyl-3-methyl-imidazolium, 1-butyl-4-methyl-imidazolium, 1-ethyl-2,3-dimethyl-imidazolium, 1-ethyl-3-methyl-imidazolium, 1-hexyl-3-methyl-imidazolium, 1-methyl-3-octyl-imidazonium, 1-benzyl-3-methyl-imidazonium, 1-ethyl-3-methyl-pyrrolidinium, butyl-1-methyl-pyrrolidinium, tetrabutyl-ammonium, methyl-trioctyl-ammonium, tetraheptyl-ammonium, tetrahexyl-ammonium, tetraoctyl-ammonium, tetrapentyl-ammonium, 1-butyl-3-methyl-pyridinium, 3-methyl-1-propyl-pyridinium, 1-butyl-pyridinium, or 4-methyl-N-butyl-pyridinium.