11.
    发明专利
    未知

    公开(公告)号:DE10030618A1

    公开(公告)日:2002-01-10

    申请号:DE10030618

    申请日:2000-06-28

    Applicant: BASF AG

    Abstract: The invention relates to thermoplastic moulding materials containing, in relation to the moulding material, A) 5 to 80 wt. % of at least one rubber phase consisting of a rubber-elastic polymer having a glass transition temperature Tg of 0 DEG C or below, and B) 20 to 95 wt. % of at least one hard phase produced separately from A), consisting of a styrene homopolymer or a styrene copolymer having low polydispersity and a polydispersity index PDI

    12.
    发明专利
    未知

    公开(公告)号:DE10021565A1

    公开(公告)日:2001-11-22

    申请号:DE10021565

    申请日:2000-05-03

    Applicant: BASF AG

    Abstract: The graft copolymer made froma1: from 10 to 90% by weight of a particulate graft base A1, made from a particulate emulsion polymer with a glass transition temperature below 0° C. made froma11: from 70 to 100% by weight of butadiene or of at least one C1-8-alkyl acrylate, or of mixtures of these, as component A11,a12: from 0 to 20% by weight of at least one polyfunctional crosslinking monomer, as component A12,a13: from 0 to 30% by weight of other copolymerizable monomers, as component A13, the total amount of these being 100% by weight,a2: from 10 to 90% by weight of a graft A2 made from the following monomers, the amounts being based on A2,a21: from 60 to 100% by weight of at least one vinylaromatic monomer, or of a (meth)acrylic ester or of mixtures of these, as component A21, anda22: from 0 to 40% by weight of at least one ethylenically unsaturated monomer, as component A22,has a median particle diameter of from 130 to 500 nm and has polymodal particle size distribution in which less than 40% by weight of the particles are present in any particle size range of width 50 nm.

    Grafting polymer rubbers, useful in thermoplastic molding materials, comprises a grafting base and a grafting layer grafted with the grafting base obtained from vinylaromatic monomers and/or polar copolymerizable monomers

    公开(公告)号:DE102005022630A1

    公开(公告)日:2006-11-16

    申请号:DE102005022630

    申请日:2005-05-11

    Applicant: BASF AG

    Abstract: Grafting polymer rubbers, obtained from a grafting base (a1) containing a first fraction group (i) by emulsion polymerization of produced particles with a particle diameter of less than 200 nm, and a second fraction (ii) by emulsion polymerization of produced particles with a particle diameter of greater than 550 nm; one or more grafting layer (a2) grafted with (a1) obtained from at least vinylaromatic monomers (a21) and/or at least a polar (a22) with copolymerizable monomers. Grafting polymer rubbers, obtained from a grafting base (a1) containing a first fraction group (i) by emulsion polymerization of produced particles with a particle diameter of less than 200 nm, and a second fraction (ii) by emulsion polymerization of produced particles with a particle diameter of greater than 550 nm, where the sum of the first fraction and the second fraction amounts to at least 75 wt.%, related to the total quantity of the particles of (a1), and the remaining 25 wt.%, related to the total quantity of the particles of (a1), where the particles are produced by emulsion polymerization, exhibits a particle diameter in the intermediate area between the particles of the first fractions and the particles of the second fractions, where (a1) is obtained from at least one alkyl acrylate (a11) with 1-32C atoms in the alkyl, optionally at least polyfunctional, crosslinking monomers (a12), optionally at least further monomers (a13), preferably vinylalkylether with 1-8C atoms in the alkyl, butadiene, isoprene, styrene, acrylonitrile, methacrylnitrile, methylmethacrylate, acrylic acid, methacrylic acid, itaconic acid and maleic acid anhydride, optionally groups (a14), from regulator-, initiator- and/or emulsifying agent systems; where a part or entire part of (a1) additionally exhibit a core, developed from 30-100 wt.% of at least vinylaromatic monomers and 0-70 wt.% of one or more further copolymerizable monomers, in each case related to the total quantity the core of forming monomers; and one or more grafting layers (a2) grafted with (a1), developed from at least vinylaromatic monomers (a21) and/or at least a polar (a22) with copolymerizable monomers, preferably from acrylonitrile, methacrylnitrile, esters of (meth)acrylic acid with 1-4C atoms in the acryl group, maleic acid anhydride and its imides, (meth)acrylamide and vinylalkylethers with 1-8C atoms in the alkyl; optionally groups (a23) from regulator-, initiator- and/or emulsifying agent systems. Independent claims are included for: (1) thermoplastic molding material comprising 5-90 wt.%, preferably 12-60 wt.% of particle forming grafting polymer, 10-95 wt.%, preferably 40-88 wt.% of at least one amorphous polymer, developed from at least vinylaromatic monomers and optionally at least ethylenic unsaturated monomers, or developed from methylmethacrylate and at least vinylaromatic monomers and/or optionally at least a further ethylenic unsaturated monomers, 0-75 wt.% of further polymers (b), preferably polycarbonates, polyamides, polyesters, polyetherketone, polyoxyalkylene, polyarylenesulfide, polyvinyl chloride or thermoplastic polyetherurethane, and 0-60 wt.% of fibers or particle forming fillers; and (2) molded articles, foils, fibers or foams obtained by using the thermoplastic molding materials.

    PROCEDIMIENTO PARA LA AGLOMERACION DE CAUCHOS DISPERSADOS.

    公开(公告)号:ES2228941T3

    公开(公告)日:2005-04-16

    申请号:ES01965130

    申请日:2001-07-13

    Applicant: BASF AG

    Abstract: Procedimiento para la aglomeración de al menos un caucho dispersado en fase acuosa (A) mediante adición de una dispersión de al menos un polímero de aglomeración (B) en fase acuosa, caracterizado porque se emplea como B un polímero de aglomeración, que no contiene esencialmente grupos ácidos libres, y se lleva a cabo la aglomeración en presencia de al menos un electrólito básico, empleándose como electrólito básico un hidróxido orgánico o inorgánico.

    PROCEDIMIENTO PARA LA OBTENCION DE PARTICULAS DE CAUCHO.

    公开(公告)号:ES2227174T3

    公开(公告)日:2005-04-01

    申请号:ES01925444

    申请日:2001-03-14

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de partículas de caucho K que contienen, en forma polimerizada A) un 80 a un 100 % en peso, referido a K, de butadieno o isopreno, o sus mezclas (monómeros diénicos A), y B) un 0 a un 20 % en peso, referido a K, de uno o varios comonómeros con insaturación monoetilénica B, por medio de polimerización en emulsión en presencia de un emulsionante, o una mezcla de diversos emulsionantes, seleccionados a partir del grupo de sales metálicas alcalinas de ácidos alquil- o alquiarilsulfónico, alquilsulfatos, sulfonatos de alcohol graso, sales de ácidos grasos superiores con 10 a 30 átomos de carbono, sulfosuccinatos, étersulfonatos y etapas resínicas, y un iniciador de polimerización, caracterizado porque 1) se dispone una mezcla en M1, que contiene, referido a M1, M1a)un 20 a un 100 % en peso de agua, que es necesaria para la obtención de emulsión (agua de emulsión), y M1b)un 0, 1 a un 100 % en peso de emulsionante, 2) después se añade una mezcla M2, que contiene, referido a M2, M2a)un 90 a un 100 % en peso de uno o varios monómeros seleccionados a partir de estireno, - metilestireno, butadieno, acrilato de n-butilo, metacrilato de metilo y acrilonitrilo, y M2b)un 0 a un 10 % en peso de uno o varios monómeros copolimerizables.

    18.
    发明专利
    未知

    公开(公告)号:AT366280T

    公开(公告)日:2007-07-15

    申请号:AT05701330

    申请日:2005-02-03

    Applicant: BASF AG

    Abstract: The invention relates to thermoplastic moulding materials containing a mixture of (A) between 30 and 69 wt. %, in relation to the sum of the constituents (A), (B) and (C), of a methylmethacrylate polymer, (B) between 30 and 69 wt. %, in relation to the sum of the constituents (A), (B) and (C), of a copolymer that can be obtained by the polymerisation of a vinylaromatic monomer and a vinylcyanide, and (C) between 1 and 40 wt. %, in relation to the sum of the constituents (A), (B) and (C), of a graft copolymer that can be obtained from (C1) between 60 and 90 wt. %, in relation to (C), of a core, (C2) between 5 and 20 wt. %, in relation to (C), of a first graft envelope consisting of a vinylaromatic monomer, an alkylmethacrylate and optionally a cross-linking monomer, and (C3) between 5 and 20 wt. %, in relation to (C), of a second graft envelope consisting of an alkyl(meth)acrylate polymer, on the proviso that the quantitative ratio of (C2) to (C3) is between 2:1 and 1:2. The invention is characterised in that the average particle size D50 of the core (C1) is between 50 and 250 nm, the average particle size D90 of the core (C1) is between 60 and 1000 nm, the average particle size D90 of the core (C1) being larger than the average particle size D50 of the core (C1), by a factor between 1.15 and 20, and the core (C1) can be obtained by the polymerisation of a monomer mixture comprising (C11) between 65 and 89 wt. %, in relation to (C1), of a 1,3-diene, (C12) between 10 and 34.9 wt. %, in relation to (C1), of a vinylaromatic monomer, and (C13) between 0.1 and 5 wt. %, in relation to (C1), of an agglomeration polymer. The invention also relates to a method for producing said moulding masses, to the use thereof, and to the moulded bodies obtained therefrom.

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