摘要:
The present invention is directed to the functionalization of butyl rubber ionomer and optionally the grafting of polyamide to halobutyl rubber ionomers. Specifically, disclosed are methods and products resulting therefrom for creating functionalized ionomers and grafting polyamide to halobutyl ionomers via reactive extrusion. The process comprises reacting a halobutyl polymer with at least one nitrogen and/or phosphorous based nucleophile to provide a halobutyl ionomer comprising conjugated diene units; grafting of an amine-reactive dienophile to said ionomer to form a functionalized ionomer; and optionally blending the resulting functionalized ionomer with polyamide.
摘要:
The present invention relates to a catalyst component comprising an inorganic oxide supported chromium, wherein said inorganic oxide support has been modified by a metal halide modifier, preferably aluminum trichloride or aluminum trichloride hexahydrate. The present invention also relates to a process for obtaining such a catalyst component, a catalyst system comprising said catalyst component and a process for the polymerization of olefins using said catalyst system.
摘要:
The purpose of the present invention is to provide a polar-group-containing propylene-type wax having excellent properties including a low melting point. A modified propylene-(α-olefin) copolymer (A) according to the present invention is produced by grafting at least one compound selected from an unsaturated carboxylic acid, a derivative of the unsaturated carboxylic acid and an unsaturated sulfonic acid salt onto a propylene-(α-olefin) copolymer (A1) and has an acid value of 1 to 100 KOHmg/g, wherein the propylene-(α-olefm) copolymer (A1) comprises 60 to 95 mol% of a propylene-derived constituent unit (a) and 5 to 40 mol% of a constituent unit (b) derived from an α-olefin having 4 or more carbon atoms, and satisfies the specific requirements (i) to (iii).
摘要:
The present invention provides a rubber composition that can enhance the fuel economy, wet-grip performance, and abrasion resistance in a balanced manner, and a pneumatic tire using this rubber composition. The present invention relates to a rubber composition that contains a rubber component, silica, and a liquid resin having a softening point of -20 to 20°C, wherein the rubber component contains, based on 100% by mass of the rubber component, not less than 5% by mass of a conjugated diene polymer containing a constituent unit based on a conjugated diene and a constituent unit represented by formula (I) below, at least one terminal of the polymer being modified with a specific compound; and an amount of the silica is 5 to 150 parts by mass per 100 parts by mass of the rubber component.
摘要:
The present invention provides an optically transparent peroxide cured article made from a peroxide curable butyl rubber ionomer comprising repeating units derived from the reaction product of one or more multiolefin monomers and at least one nitrogen or phosphorous based nucleophile comprising a pendant vinyl group. A process is also disclosed for making the optically transparent article.
摘要:
The present invention relates to a non-aqueous coating material composition comprising at least one compound (A) having at least two amino groups and also at least one oligomeric and/or polymeric compound (B) having at least two alkylidene-1,3-dioxolan-2-one groups, characterized in that the compound (B) is obtainable using at least one monomer (B1) of the formula (I) where R 1 and R 2 independently of one another are hydrogen, C 1 -C 6 -alkyl, C 1 -C 4 -alkoxy-C 1 -C 4 -alkyl, C 5 -C 6 -cycloalkyl, phenyl or phenyl-C 1 -C 4 - alkyl; R 3 is hydrogen, C 1 -C 6 -alkyl, C 1 -C 4 -alkoxy-C 1 -C 4 -alkyl, C 5 -C 6 - cycloalkyl, phenyl or phenyl-C 1 -C 4 -alkyl; R 4 is hydrogen, C 1 -C 4 -alkyl, CH 2 COOR 8 , phenyl or phenyl-C1-C4-alkyl; R 5 and R 6 independently of one another are hydrogen or C 1 -C 4 -alkyl, or else one of the radicals R 5 or R 6 may be COOR 8 or CH 2 COOR 8 ; A is a chemical bond or C 1 -C 4 -alkanediyl; X is O or NR 7 ; Z is a chemical bond, PO 2 , SO 2 or C=O; Y is a chemical bond, CH 2 or CHCH 3 ; R 7 , if present, is C 1 -C 6 -alkyl; R 8 , if present, is hydrogen or C 1 -C 6 -alkyl; and at least two different comonomers (B2) und (B3), each different from the monomer (B1). Also subjects of the present invention are the coatings produced from these coating material compositions, and their use.
摘要:
The present invention relates to novel Ruthenium-based complex compounds which represent viable catalysts, in particular for all sorts of metathesis reactions. Such complex compounds can be prepared by a novel, very favorable and cost efficient method which includes the introduction of an alkylidene ligand into the complex by using vinyl sulfides or vinyl ethers.