Abstract:
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.
Abstract:
The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition comprising: 100 parts by weight of at least one elastomer; from 10 to 80 parts by weight, per 100 parts by weight of elastomer (phr) of a high structure silica having a CTAB specific surface area (SCTAB) of between 40 and 525 m2/g, a BET specific surface area (SBET) of between 45 and 550 m2/g; and from 10 to 70 phr of a low structure silica having a median particle size of less than 500 nm, a specific area ranging from 15 to 25 m2/g, and a specific gravity of 2.1 to 2.3 g/cm3.
Abstract translation:本发明涉及一种包括至少一种组分的充气轮胎,所述至少一种组分包括橡胶组合物,其包含:100重量份的至少一种弹性体; 10重量份至80重量份,相对于每100重量份具有40-52m 2 / g CTAB比表面积(SCTAB)的高结构二氧化硅的弹性体(phr),BET比表面积(SBET)为 45至550平方米/克; 和10至70phr的中等颗粒尺寸小于500nm,比表面积为15至25m 2 / g,比重为2.1至2.3g / cm 3的低结构二氧化硅。
Abstract:
The present invention is directed to a pneumatic tire including at least one component, the at least component including a rubber composition, the rubber composition including 100 parts by weight of a diene based elastomer and from 1 to 20 parts by weight, per 100 parts by weight of elastomer (phr), of a solvent-extracted asphaltene.
Abstract:
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.
Abstract:
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.
Abstract:
A rubber composition containing a filler having individual aggregates containing both large and small particles, where the small particles are grafted onto the surface of the large particles. The small particles range from 1 to 30 weight percent of the overall weight of the filler. The large particles range from 70 to 99 weight percent of the overall weight of the filler. The small particles range in size of from 1 to 16 nanometers in diameter and the large particles range in size of from 17 to 500 nanometers in diameter.
Abstract:
This invention relates to aggregates comprised of particles which contain silicon dioxide and to elastomers reinforced therewith. The invention also relates to tires having treads composed of such reinforced elastomers.
Abstract:
The invention relates to a tire with a tread composed of a rubber composition containing carbon black reinforcement as significant quantities two different carbon blacks and without quantitative amounts of silica reinforcement.
Abstract:
The invention relates to a process for preparation of a rubber composition containing silica reinforcement through the utilization of a high purity organosilane disulfide/trisulfide. Pneumatic tires having treads prepared by such process are provided.
Abstract:
The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition, the rubber composition comprising: from 70 to 90 phr of a styrene-butadiene rubber functionalized with an alkoxysilane group and at least one of a primary amine group and thiol group; from 10 to 30 phr of at least one additional diene based elastomer; from 60 to 100 phr of precipitated silica; from 1 to 10 phr of a polyoctenamer; from 5 to 25 phr of a starch/plasticizer composite; and from 10 to 20 phr of a tackifying resin.