摘要:
The present invention relates to asymmetrical siloxy compounds of the formula wherein R1, R2 and R3 are independently selected from the group consisting of alkoxy radicals having from 1 to 8 carbon atoms; R4 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; and n is an integer of from 1 to 8.
摘要:
The present invention relates to asymmetrical siloxy compounds of the formula ##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; and n is an integer of from 1 to 8.
摘要:
This invention relates to preparation of a rubber composition by pre-mixing at least one functionalized carbon black with an organic solvent solution or aqueous emulsion of at least one host elastomer. Functionalized carbon blacks for the purposes of this invention preferably contain a functional moiety on their surface to aid in promoting covalent bonds between the functionalized carbon black and said host polymer. The invention also contemplates the use of such rubber composition, or blend of such rubber composition with at least one additional elastomer and/or rubber compounding ingredient, as a component of an article of manufacture. Such article of manufacture may be, for example, a tire. Such article may also be an industrial product such as, for example, a hose or belt such as a conveyor belt or power transmission belt.
摘要:
This invention relates to a carbon black modified by a two step process in which carbon black is initially treated with functional monomers by an electropolymerization process to form a functionalized carbon black having an initial polymer attached to, of grafted to, the carbon black following which(A) at least one diene monomer, or(B) living anionic catalysis prepared polymer, is introduced to the functionalized carbon black to continue the polymerization, starting from a living end of the initially formed polymer, and thereby form an extended diene-based polymer. By the addition of the diene monomer or the live anionic polymer to form the associated extended diene-based polymer, it is contemplated that the modified carbon black is rendered more compatible with diene-based elastomers. Such modified carbon black may be used, for example, as reinforcement for component(s) of various articles of manufacture, including tires. Accordingly, an article of manufacture is provided, such as for example a tire, having at least one component of a rubber composition which contains such modified carbon black.
摘要:
Preparation of an elastomer which contains a dispersion of filler reinforcement by forming a filler reinforcement in situ within the 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 and in situ formed filler reinforcement. A tire having a component of is such rubber composition, particularly a tire tread, is specifically contemplated.
摘要:
This invention relates to a rubber composite made from an elastomer polymerized on the surface of a silanized filler, a rubber composition containing such composite and an article such as for example a tire, which has at least one component comprised of such composition. Such reinforcement is applied by polymerizating a conjugated diene hydrocarbon in the presence of a filler silanized with an alkenyl silane. In particular a silanized reinforcing filler is pre-treated with butyl lithium or peroxide catalyst, preferably with butyl lithium, followed by polymerizing a conjugated diene hydrocarbon in the presence of such treated filler via an anionic or free radical polymerization in an organic solvent. Such pre-formed elastomer composite is also contemplated as well as a rubber composition comprised of a blend of such pre-formed composite and at least one additional elastomer. Such filler may be, for example, precipitated silica, carbon black and/or a modified carbon black. A tire having a component of such composite or rubber composition such as, for example a tread, is also provided.
摘要:
A rubber composition comprised of an elastomer(s) reinforced with a particulate carbon black composite, and a coupling agent. Said carbon black composite contains integral silica on the surface thereof, wherein said carbon black composite is prepared by co-precipitating carbon black and silica from a dispersion of carbon black in sodium silicate to provide integral silica domains on the outer surface of the carbon black. Said carbon black composite is further functionalized by reacting it with a trialkoxy silane. A tire having a component comprised of such rubber composition, such as, for example, a tire tread is contemplated.
摘要:
A rubber composition comprised of an elastomer(s), reinforced with a particulate carbon black composite, said composite composed of carbon black having an integral silica on the surface thereof, together with a coupling agent. A method of adjusting electrical conductivity of a rubber composition containing such carbon black composite reinforcement is also provided. A tire having a component of such rubber composition such as, for example, a tread, is specifically contemplated.
摘要:
The invention relates to a rubber composition containing a modified silanol-containing carbon black reinforcement which has a grafted hydrocarbon on its surface. The invention also relates to an article such as, for example, a tire having at least one component of such rubber composition.
摘要:
Preparation of an elastomer which contains a dispersion of filler reinforcement by forming a filler reinforcement in-situ within the 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 and in-situ formed filler reinforcement. A tire having a component of such rubber composition, particularly a tire tread, is specifically contemplated.