Abstract:
Verfahren zur Umsetzung einer organischen Verbindung in Gegenwart eines Katalysators, der als Aktivmetall Ruthenium alleine oder zusammen mit mindestens einem Metall der I., VII. oder VIII. Nebengruppe des Periodensystems in einer Menge von 0,01 bis 30 Gew.-%, bezogen auf das Gesamtgewicht des Katalysators, aufgebracht auf einem Träger, umfaßt, dadurch gekennzeichnet, daß 10 bis 50% des Porenvolumens des Trägers von Makroporen mit einem Porendurchmesser im Bereich von 50 nm bis 10.000 nm und 50 bis 90% des Porenvolumens des Trägers von Mesoporen mit einem Porendurchmesser im Bereich von 2 bis 50 nm gebildet werden, wobei sich die Summe der Porenvolumina zu 100% addiert, sowie den Katalysator an sich.
Abstract:
New thermoplastic moulding material contains the following components: (A) 20-99 wt.,% at least one graft copolymer comprising 30-90 wt.% core (a1) prepd. by polymerisation of a mixt. of 80-99.9 wt.% at least one acrylic acid 1-10C alkyl ester (a11), 20 - 0.01 wt.% copolymerisable, polyfunctional, cross-linking monomer (a12) and 0 - 40 wt.% additional copolymerisable, monoethylenic unsatd. monomer (a13), with 70 - 10 wt.% graft component (a2) prepd. by polymerisation in the presence of (a1) of a monomer mixt. comprising 50 - 100 wt.% styrene cpd. of formula (I) and/or (meth)acrylic acid 1-8C alkyl ester (a21) and 50 - 0 wt.% monofunctional comonomer (a22); (B) 80 - 1 wt.% copolymer prepd. from at least one alpha-olefin and at least one polar comonomer, except vinyl acetate or vinyl aromatic monomers; and (C) 0 - 50 wt.% thermoplastic polymer prepd. by the polymerisation of 50 - 100 wt.% vinyl aromatic monomer and/or (meth)acrylic acid 1-8C alkyl ester (c1) and 50 - 0 wt.% monofunctional comonomer (c2), all wrt. sum of (A), (B) and (C); R1, R2 = H or 1-8C alkyl. Also claimed are (i) prepn. of the moulding material by mixing (A), (B) and (C), (ii) use of the material for the prepn. of moulded articles or films, (iii) films or moulded articles prepd. from the material, and (iv) films with a leather-like appearance.
Abstract:
New thermoplastic moulding material contains the following components: (A) 20-99 wt.,% at least one graft copolymer comprising 30-90 wt.% core (a1) prepd. by polymerisation of a mixt. of 80-99.9 wt.% at least one acrylic acid 1-10C alkyl ester (a11), 20 - 0.01 wt.% copolymerisable, polyfunctional, cross-linking monomer (a12) and 0 - 40 wt.% additional copolymerisable, monoethylenic unsatd. monomer (a13), with 70 - 10 wt.% graft component (a2) prepd. by polymerisation in the presence of (a1) of a monomer mixt. comprising 50 - 100 wt.% styrene cpd. of formula (I) and/or (meth)acrylic acid 1-8C alkyl ester (a21) and 50 - 0 wt.% monofunctional comonomer (a22); (B) 80 - 1 wt.% copolymer prepd. from at least one alpha-olefin and at least one polar comonomer, except vinyl acetate or vinyl aromatic monomers; and (C) 0 - 50 wt.% thermoplastic polymer prepd. by the polymerisation of 50 - 100 wt.% vinyl aromatic monomer and/or (meth)acrylic acid 1-8C alkyl ester (c1) and 50 - 0 wt.% monofunctional comonomer (c2), all wrt. sum of (A), (B) and (C); R1, R2 = H or 1-8C alkyl. Also claimed are (i) prepn. of the moulding material by mixing (A), (B) and (C), (ii) use of the material for the prepn. of moulded articles or films, (iii) films or moulded articles prepd. from the material, and (iv) films with a leather-like appearance.
Abstract:
A particulate graft polymer comprising a graft base A comprising, based on A, A11: from 75 to 99.8% by weight of at leat one alkyl acrylate A11 having 1-8 carbon atoms in the alkyl radical, A12: from 0.1 to 5% by weight of at least one polyfunctional monomer A12 which causes crosslinking, A13: from 0.1 to 20% by weight of at least one monomer A13 containing one or more acidic groups, or A111: at least 50% by weight of one or more dienes A111, A112: up to 50% by weight of at least one further ethylenically unsaturated monomer A112, A113: up to 15% by weight of at least one monomer A113 containing one or more acidic groups, and a graft shell B grafted thereto, comprising, based on B, B1: from 0 to 99.8% by weight of at least one vinyl aromatic monomer B1, B2: from 0 to 99.8% by weight of at least one polar, copolymerisable, ethylenically unsaturated monomer B2, B3: from 0.1 to 20% by weight of at least one monomer B3 containing one or more basic groups, and B4: from 0.1 to 10% by weight of at least one hydroxyalkyl acrylate or methacrylate B4.
Abstract:
Thermoplastic moulding compositions containing, as essential components, A) from 1 to 30% by weight of a polycarbonate, B) from 10 to 50% by weight of a graft polymer built up from b1) from 40 to 80% by weight of a graft base comprising an elastomeric polymer having a glass transition temperature of below 10@C, b2) from 20 to 60% by weight of a graft shell comprising b21) from 50 to 95% by weight of styrene or substituted styrenes of the formula I where R is an alkyl radical having 1 to 8 carbon atoms or a hydrogen atom and R an alkyl radical having 1 to 8 carbon atoms and n has a value 0, 1, 2 or 3, or methyl acrylate or methyl (meth)acrylate, or mixtures thereof, and b22) from 5 to 50% by weight of acrylonitrile, methacrylonitrile, methyl acrylate, methyl methacrylate, maleic anhydride, maleimides which are N-substituted by C1- to C8-alkyl or C6- to C20-aryl, or mixtures thereof, C) from 5 to 80% by weight of a thermoplastic copolymer comprising c1) from 50 to 85% by weight of styrene or substituted styrenes of the formula I, or mixtures thereof, c2) from 15 to 50% by weight of acrylonitrile or methacrylonitrile or mixtures thereof, D) from 5 to 80% by weight of a thermoplastic polymer comprising d1) from 50 to 85% by weight of styrene or substituted styrenes of the formula I, or mixtures thereof, and d2) from 15 to 50% by weight of acrylonitrile or methacrylonitrile, or mixtures thereof, which is different from component D), with the proviso that the proportion by weight of component d2), based on the total weight of component D), is less than the proportion by weight of component c2), based on the total weight of component C).
Abstract:
The present invention relates to graft copolymers obtainable by (A) polymerisation of from 10 to 89% by weight of a mixture essentially comprising either (a1) from 70 to 99.89% by weight of a C1-C18-alkyl radical of acrylic acid, where the alkyl radical may be monosubstituted by a phenyl or phenoxy group, (a2) from 0.1 to 10% by weight of a polyfunctional monomer, (a3) from 0 to 29.89% by weight of an ethylenically unsaturated monomer carrying no acid group which is different from (a1) and (a2) and can be copolymerised therewith, and (a4) from 0.01 to 10% by weight of a copolymerisable monomer containing at least one acid group, or (a5) from 49.99 to 99.99% by weight of at least one diene, (a6) from 0 to 50% by weight of a monomer which does not carry an acid group and can be copolymerised therewith and (a7) from 0.01 to 10% by weight of a copolymerisable monomer having at least one acid group, in the presence of from 1 to 80% by weight of a crosslinked silicone rubber, and (B) polymerisation of from 10 to 89% by weight of a mixture essentially comprising (b1) from 50 to 99.99% by weight of a styrene compound of the formula (I) in which R and R , independently of one another, are hydrogen, C1-C8-alkyl or phenyl which is up to trisubstituted by C1-C4-alkyl, and/or a C1-C8-alkyl ester of methacrylic or acrylic acid, (b2) from 0 to 50% by weight of a monomer selected from the group consisting of methacrylonitrile, acrylonitrile, methacrylic acid, acrylic acid, maleic anhydride, maleimide which is N-substituted by C1-C4-alkyl, vinyl esters of aliphatic C2-C8-carboxylic acids, acrylamide and vinyl methyl ether, and (b3) from 0.01 to 20% by weight of a copolymerisable monomer containing at least one basic group, in the presence of the graft copolymer (A).
Abstract:
Graft copolymers (GCP) are obtd. by (A) copolymerisation of 25-60 wt.% of a mixt. of (a1) 70-99.9 wt.% (1-18C alkyl) acrylate, opt. with a Ph- or PhO-substd. alkyl gp.; (a2) 0.1-10 wt.% polyfunctional monomer and (a3) 0-29.9 wt.% other unsatd. comonomer, in presence of 5-25 wt.% crosslinked silicone rubber, followed by (B) polymerisation of 5-25 wt.% of a mixt. of (b1) 50-100 wt.% styrene cpd. of formula and/or (1-8C alkyl) (meth)acrylate and (b2) 0-50 wt.% (meth)acrylonitrile, (meth)acrylic acid, maleic anhydride, N-(1-4C alkyl)-substd. maleimide, vinyl 2-8C aliphatic carboxylate, acrylamide or vinyl methyl ether, in the presence of graft copolymer (A); R , R = H, 1-8C alkyl or Ph (opt. substd. with up to 3 1-4C alkyl gps.) Also claimed are thermoplastic moulding materials (TMM) contg. 5-95 wt.% (GCP) and 95-5 wt.% copolymer (C) derived from (c1) 50-100 wt.% monomer as in (b1), (c2) 0-50 wt.% monomer as in (b2), (c3) 0-90 wt.% polycarbonate and (c4) 0-100 wt.% conventional additives. Also claimed is the above process for the prodn. of GCP, and a process for the prodn. of TMM by mixing GCP and copolymer (C) in the above amts. by known methods. Also claimed are moulded prods. obtd. from GCP and TMM.