摘要:
The present invention relates to rubber compositions containing borate compounds of the formula wherein R1 and R2 are independently selected from the group consisting of alkoxy radicals having from 1 to 8 carbon atoms; R3 is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms; X is selected from the group consisting of and Y is selected from the group consisting of Sx and Sex where x is an integer of from 1 to 8.
摘要:
The present invention relates to compounds of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are independently selected from alkoxy radicals having from 1 to 8 carbon atoms, x is O or an integer of from 1 to 10; and Y is Li, K or Na. These compounds may be used as silica couplers in rubber compositions.
摘要:
A rubber composition comprised of elastomer(s), carbon black reinforcement and coupling agents. In one aspect, a modified carbon black may be used. A tire having a component of such rubber composition such as, for example, a tread, is also provided.
摘要:
A pneumatic tire having a tread comprised of (a) a diene-based elastomer containing olefinic unsaturation and (b) from 1 to 150 phr of a metal oxide aerogel.
摘要:
The present invention relates to rubber compositions containing borate compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from the group consisting of alkoxy radicals having from 1 to 8 carbon atoms; R.sup.3 is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms; X is selected from the group consisting of ##STR2## and Y is selected from the group consisting of S.sub.x and Se.sub.xwhere x is an integer of from 1 to 8.
摘要:
A rubber composition comprised of elastomer(s) including a tin or silicon modified elastomer, modified carbon black and silica coupler. Said modified carbon black has one or more of silanol, siloxane, titanium dioxide, zirconium hydroxide and aluminum hydroxide on its surface. A tire having a tread of such rubber composition is also provided.
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:
The present invention relates to asymmetrical siloxy compounds of the formulae ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently selected from the group consisting of alkoxy radicals having from 1 to 8 carbon atoms; R.sup.4 is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms; R.sup.5 is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms, arylene and alkyl substituted arylene groups having 6 to 10 carbon atoms; y is 2 to 8; X is selected from the group consisting of ##STR2## W is selected from the group consisting of ##STR3## and Z is 1 to 8
摘要:
The present invention relates to a rubber composition comprising (A) an elastomer containing olefinic unsaturation and (B) 35 to 110 phr of silica filler, wherein said silica filler is comprised of (i) 10 to 100 phr of a first silica having a pore size distribution maximum of the aggregates in the first silica ranging from greater than 55 to 400 nm as determined by mercury porosimetry and an average specific surface area ranging from 60 to 135 m2/g as determined by N2 adsorption; and (ii) 10 to 100 phr of a second silica having a pore size distribution maximum of the aggregates in the second silica ranging from 5 to 50 nm as determined by mercury porosimetry and an average specific surface area ranging from 140 to 250 m2/g as determined by N2 adsorption.
摘要:
There is disclosed a rubber composition particularly suited for use in tires. The rubber composition is composed of 100 parts by weight of at least one rubber containing olefinic unsaturation; and from 1 to 150 parts per 100 parts by weight of rubber, of a silica having predispersed on the surface of the silica a liquid epoxidized butadiene polymer having a number average molecular weight of from 500 to 10,000.