摘要:
There is disclosed a pneumatic tire having a rubberized component comprising: (a) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (b) 1 to 50 phr of a dendrimer.
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:
The 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.
摘要:
This invention relates to preparation of an elastomer which contains a dispersion of silica reinforcement by forming a silica reinforcement in situ within an unvulcanized elastomer host, the resulting elastomer/filler composite and tire having component which contains such reinforced elastomer. The invention includes a rubber composition of at least two elastomers wherein one of said elastomers is a pre-formed composite of elastomer/in situ formed silica reinforcement. A tire having a component of such rubber composition, particularly a tire tread, is specifically contemplated.
摘要:
There is disclosed a rubber composition comprising: (A) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (B) 1.5 to 50 phr of a silicon coupled oligomer of the formula: where R1 and 2 are individually selected from the group consisting of where R3 is selected from the group consisting of alkyls having 1 or 4 carbon atoms; w is an integer of from 9 to 149, x is an integer of from 1 to 100, y is an integer of from 1 to 100, and z is an integer of from 1 to 100 with the proviso that the sum total of x, y and z in each R1 and R2 ranges from 3 to 100.
摘要:
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.
摘要:
There is disclosed a rubber composition comprising: (A) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (B) 1.5 to 50 phr of a silicon coupled oligomer of the formula:
摘要:
There is disclosed a method for the preparation of a diene polymer interpenetrated with a polysiloxane comprising the polymerization of (A) at least one silane monomer of the formula: (B) at least one silane monomer of the formula: (C) at least one diene monomer, said polymerization being conducted in the presence of an anionic base, an inert solvent and a polymerization initiator, wherein each R1 is independently selected from the group consisting of alkyl radicals having from 1 to 4 carbon atoms and aryl radicals having 6 carbon atoms and R2 is selected from the group consisting of where x is an integer of from 1 to 8.
摘要:
A pneumatic tire having a rubber component where the rubber in said component is comprised of (A) from 1 to 25 weight percent of high impact polystyrene; and (B) from 75 to 99 weight percent of a rubber containing olefinic unsaturation.
摘要:
There is disclosed a rubber composition comprising: (A) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (B) 1.5 to 50 phr of an organically modified ceramic.