Abstract:
A composition includes an elastomer and a ketoximo silane or a ketoxime additive. The ketoximo silane corresponds to Formula I: D-SA—B (I) where B defined as: where D is selected from a C1 to C60 hydrocarbyl group, or when A is 0 or 1 a hydrogen, or the structure in Formula III; and wherein n and j are independently 1, 2, or 3, m and q are independently 0 or 1, z and t are independently 0 or 1 and (n+m+z) is equal to 3 and (j+q+t) is equal to 3; A is 0 or greater than or equal to 1; R1 and R2 are independently C1 to C60 divalent organic groups and may optionally include O, N S, Si, and/or P heteroatoms with the proviso that when A is 0 either of R1 and R2 may be a chemical bond; R3, R4, R8 and R9 are independently a hydrogen, or a C1 to C60 hydrocarbyl or alkoxy group optionally including O, N, S, Si and/or P; R5 and R6 are independently hydrogen or C1 to C60 hydrocarbyl groups and may optionally include O, N S, Si, and/or P heteroatoms, and may optionally be bonded together to form a cyclic ring; R10 and R11 are independently hydrogen or C1 to C60 hydrocarbyl groups and may optionally include O, N S, Si, and/or P heteroatoms, and may optionally be bonded together to form a cyclic ring.
Abstract translation:组合物包括弹性体和酮肟基硅烷或酮肟添加剂。 酮肟基硅烷对应于式I:D-SA-B(I)其中B定义为:其中D选自C1至C60烃基,或当A为0或1时为氢,或式III中的结构; 并且其中n和j独立地为1,2或3,m和q独立地为0或1,z和t独立地为0或1,并且(n + m + z)等于3,并且(j + q + t )等于3; A为0或大于或等于1; R1和R2独立地为C1至C60二价有机基团,并且可以任选地包括O,N S,Si和/或P杂原子,条件是当A为0时,R 1和R 2可以是化学键; R 3,R 4,R 8和R 9独立地为氢或任选包括O,N,S,Si和/或P的C 1至C 60烃基或烷氧基; R 5和R 6独立地是氢或C 1至C 60烃基,并且可任选地包括O,N S,Si和/或P杂原子,并且可以任选地结合在一起形成环状环; R 10和R 11独立地为氢或C 1至C 60烃基,并且可以任选地包括O,N S,Si和/或P杂原子,并且可以任选地结合在一起形成环状环。
Abstract:
A method of preparing a polymer, the method comprising: metalating an organophosphine compound in the substantial absence of monomer to form a metalated organophosphine; and introducing the metalated organophosphine to monomer including conjugated diene monomer to form a reactive polymer.
Abstract:
Embodiments provide polydienes and diene copolymers having organophosphines functionality. Specific embodiments employ phosphorus-containing organometal initiators and copolymers prepared by anionically polymerizing conjugated diene monomer and vinyl organophosphine.
Abstract:
A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer; (ii) reacting the reactive polymer with a polyisocyanate having a functionality of X to form an intermediate polymer product; and (iii) reacting the intermediate polymer product with a polyol having a functionality of Y to form the coupled polymer product, where X+Y≧5.
Abstract:
A composition includes a diene rubber and a metal phosphate ester of the formula: M being a metal with an oxidation state of +3 or +4, and R1 and R2 are independently selected from any organic moiety including hydrogen, except R1 and R2 cannot both be hydrogen. In addition, a method of making a rubber composition includes combining a solvent and a phosphate ester and mixing these to foam a solution. A source of metal ions is then added to the solution. The metal in the source of metal ions is selected from the group consisting of metals with an oxidation state of +3 or +4. The product is then is combined with a diene rubber composition to form a useful article, such as the tread of a tire.
Abstract:
It has been discovered that the use of a plasticizer, an ester of a cyclohexanepolycarboxylic acid, especially a 1,2-cyclohexanedicarboxylic acid ester, that is environmentally non-toxic, can replace environmentally unfriendly phthalate plasticizers, such as dioctyl phthalates used in vulcanizable rubber compositions, especially for tires, on a one to one weight basis (phr) without sacrificing beneficial rubber properties.
Abstract:
Methods are described for the preparation of polymers using a lanthanide-based coordination catalyst and arresting polymerization using a reduced amount of a Lewis base while retaining the reactivity of the polymer chain ends toward functionalization agents. The Lewis base is a meso-enriched oxolanyl Lewis base. The resulting functionalized polymer has a higher level of purity and can be used in products such as tires.
Abstract:
Metallated aminosilane compounds for use as functional initiators in anionic polymerizations and processes for producing an aminosilane-functionalized polymer using the metallated aminosilane compounds to initiate anionic polymerization of at least one type of anionically polymerizable monomer. Preferred use of the metallated aminosilane compounds results in rubber compositions for use in tires comprising an aminosilane functionalized polymer.
Abstract:
A vulcanizate prepared by a method comprising introducing an elastomer, a filler, and a mercapto-functional siloxane to form a masterbatch and introducing a curative to the masterbatch to form a vulcanizable composition.
Abstract:
Disclosed herein ARE various uses of styrene monomers derived from biobased material and containing modern carbon atoms, including in copolymers, in rubber compositions, in tire components, and to balance the viscoelastic properties of a rubber composition containing the styrene monomer.