摘要:
There is disclosed a rubber composition comprising: (a) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (b) 1 to 150 phr of a precipitated organosilicon particles having a core and a shell, wherein the core is obtained by the condensation of at least one monomer of the formula: R1—Si(OR2)3 I where R1 is selected from the group consisting of hydrogen, methyl, ethyl, vinyl, alkoxy having from 1 to 4 carbon atoms, and phenyl; R2 is selected from the group consisting of alkyls having from 1 to 4 carbon atoms and phenyl; and wherein said condensation of said monomer is in the presence of a surfactant; and wherein the shell is obtained by the subsequent addition to the core of a monomer of the formula: R3—Si(OR2)3 II where R3 is selected from the group consisting of —CH═CH2, —CH2—CH═CH2, &Parenopenst;CH2&Parenclosest;nSH and mixtures thereof; and n is an integer of from 2 to 8.
摘要:
A rubber composition which contains substantially hollow, irregularly-shaped particles, and/or fragments thereof derived from a surface-modified carbon black aggregate from the which the carbon black core has been removed. For example, an irregularly-shaped carbon black aggregate may be surface-modified to have interconnecting domains of at least one inorganic material on its surface and the carbon black core removed by an oxidation process leaving an irregularly-shaped, substantially hollow particle and/or fragments thereof of said inorganic materials. An article having a component of such rubber composition is also provided such as, for example, a tire or an industrial product.
摘要:
The present invention relates to titanium and zirconium compounds of the formulae (R1—OyXO—R2—W)z I wherein each R1 is independently selected from the group consisting of alkyl radicals having from 1 to 8 carbon atoms; R2 is a divalent radical selected from the group consisting of alkylenes having 1 to 15 carbon atoms, arylene and alkyl substituted arylene groups having 6 to 10 carbon atoms; W is an epoxy group; and y is an integer of from 1 to 3, z is an integer of from 1 to 3 and the sum of y and z equals 4; and X is titanium or zirconium.
摘要翻译:本发明涉及式中的钛和锆化合物,其中每个R 1独立地选自具有1至8个碳原子的烷基; R 2是选自具有1至15个碳原子的亚烷基,亚芳基和具有6至10个碳原子的烷基取代亚芳基的二价基团; W是环氧基; y为1〜3的整数,z为1〜3的整数,y与z的和为4。 X为钛或锆。
摘要:
The present invention relates to titanium and zirconium compounds of the formulae (R1—O&Parenclosest;yX&Parenopenst;O—R2—W)z I wherein each R1 is independently selected from the group consisting of alkyl radicals having from 1 to 8 carbon atoms; R2 is a divalent radical selected from the group consisting of alkylenes having 1 to 15 carbon atoms, arylene and alkyl substituted arylene groups having 6 to 10 carbon atoms; W is an epoxy group; and y is an integer of from 1 to 3, z is an integer of from 1 to 3 and the sum of y and z equals 4; and X is titanium or zirconium.
摘要:
The present invention is directed to a pneumatic tire having a rubber component including (A) 100 parts by weight (phr) of a rubber containing olefinic unsaturation; (B) from 50 to 100 phr of silica; (C) from 1 to 40 phr of a polyoctenamer. In another embodiment, the invention is directed to a pneumatic tire having a rubber component further including (D) from 1 to 30 phr of a rubber gel selected from the group consisting of polybutadiene gel, styrene butadiene gel, acrylonitrile-butadiene gel, chloroprene gel, natural rubber gel, and mixtures thereof.
摘要:
The present invention is directed to a pneumatic tire having a rubber component including(A) 100 parts by weight (phr) of a rubber containing olefinic unsaturation;(B) from 50 to 100 phr of silica;(C) from 1 to 40 phr of a polyoctenamer.
摘要:
The invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, (A) 10 to 40 phr of a polybutadiene rubber having a microstructure comprised of about 96 to about 98 percent cis 1,4-isomeric units, about 1 to about 3 percent trans 1,4-isomeric units and about 0.3 to about 1 percent vinyl 1,2-content; Mn ranging from about 230,000 to about 250,000 with a heterogeneity index ranging from about 1.5/1 to about 2/1, and a Tg ranging from about −104 to about −109° C.; (B) 60 to 90 phr of a solution polymerized styrene-butadiene rubber functionalized with an alkoxysilane group and a primary amine group; (C) 60 to 100 phr of silica having a CTAB of between 40 and 525 m2/g, a BET of between 45 and 550 m2/g; and (D) less than 5 phr of carbon black.
摘要:
The present invention is directed to a pneumatic tire having at least one component including a sulfur vulcanizable rubber composition, the rubber composition including at least one diene based rubber and at least one zinc porphyrin compound.
摘要:
The present invention is directed to a pneumatic tire comprising a carcass and an innerliner in direct contact with the carcass, the innerliner comprising a rubber composition comprising: at least one elastomer selected from the group consisting of butyl rubber, chlorinated butyl rubber, brominated butyl rubber, synthetic polyisoprene, natural rubber, styrene butadiene rubber, polybutadiene, copolymer of isobutylene and paramethylstyrene, and brominated copolymer of isobutylene and paramethylstyrene; epichlorohydrin rubber; and at least one delaminated talc having a BET surface area according to DIN 66131 of 10-40 m2/g, an average particle size (D50) of 4-8 microns, determined by laser diffraction measurement, and a lamellarity index of 3-15.
摘要:
The present invention is directed to a pneumatic tire having a rubber component including(A) 100 parts by weight (phr) of a rubber containing olefinic unsaturation;(B) from 50 to 100 phr of silica;(C) from 1 to 40 phr of a polyoctenamer.