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    11.
    发明专利
    未知

    公开(公告)号：AT287907T

    公开(公告)日：2005-02-15

    申请号：AT01909704

    申请日：2001-01-26

    Applicant: BASF AG

    Inventor： MC KEE GRAHAM EDMUND ,  GAUSEPOHL HERMANN ,  NIESSNER NORBERT

    IPC: C08F285/00 ,  C08L51/04

    Abstract: The invention relates to a process for preparing an impact-modified plastic based on grafted crosslinked rubber particles, and also to an impact-modified plastic obtainable by the process. To prepare the impact-modified plastic, (a) particles of a crosslinked rubber are produced from a first monomer mixture which has a content of

    Thermoplastic moulding materials
    16.
    发明专利
    Thermoplastic moulding materials 未知

    公开(公告)号：AU1981200A

    公开(公告)日：2000-07-03

    申请号：AU1981200

    申请日：1999-12-16

    Applicant: BASF AG

    Inventor： GUNTHERBERG NORBERT ,  WUNSCH JOSEF ,  ITTEMANN PETER ,  KNOLL KONRAD ,  NIESSNER NORBERT

    IPC: C08F265/04 ,  C08F265/06 ,  C08L25/08 ,  C08L51/04 ,  C08L53/02 ,  C08L69/00

    Abstract: Thermoplastic molding compositions comprising(A) 5 to 98%-wt., based on components (A) through (E), of at least one elastomeric graft copolymer,(B) 1 to 90%-wt., based on components (A) through (E), of a further copolymer,(C) 1 to 70%-wt., based on components (A) though (D), of an elastomeric block copolymer composed ofat least one block CA (hard phase) having copolymerized units of a vinylaromatic monomer, andat least one elastomeric block C(B/A) (soft phase) having copolymerized units of a vinylaromatic monomer, and of a diene,(D) 0 to 300%-wt., based on components (A) through (C), of a polycarbonate, and(E) 0 to 30%-wt., based on components (A) through (E), of conventional additives and processing aids,are useful for producing films, moldings or fibers.

    17.
    发明专利
    未知

    公开(公告)号：ES2140974T3

    公开(公告)日：2000-03-01

    申请号：ES97919315

    申请日：1997-04-03

    Applicant: BASF AG

    Inventor： KNOLL KONRAD ,  GAUSEPOHL HERMANN ,  NIESSNER NORBERT ,  NAEGELE PAUL ,  FISCHER WOLFGANG

    IPC: C08F297/04

    Abstract: Elastomeric block copolymers comprising at least one hard block A composed of styrene monomers and at least one elastomeric block (B/A) composed of styrene monomers and dienes, the glass transition temperature Tg of the block A being more than 25° C. and that of block (B/A) being less than 25° C. and the phase volume ratio of block A to block (B/A) being chosen so that the proportion of the hard phase in the total block copolymer is from 1 to 40% by volume and the amount by weight of the diene is less than 50% by weight, and the relative proportion of 1,2 linkages of the polydiene, based on the sum of 1,2- and 1,4-cis/trans linkages, being below 15%, are prepared by anionic polymerization by means of a lithium alkyl in a nonpolar solvent in the presence of a soluble potassium salt and are used for the production of shaped articles.

    Polymer mixtures comprised of styrene polymers
    18.
    发明专利
    Polymer mixtures comprised of styrene polymers 未知

    公开(公告)号：AU3143399A

    公开(公告)日：1999-09-27

    申请号：AU3143399

    申请日：1999-03-03

    Applicant: BASF AG

    Inventor： KNOLL KONRAD ,  NIESSNER NORBERT ,  WUNSCH JOSEF ,  GAUSEPOHL HERMANN

    IPC: C08J5/00 ,  C08J5/18 ,  C08L25/06 ,  C08L53/02

    Abstract: Polymer mixtures compriseP1) from 1 to 85% by weight of an elastomeric block copolymer which has been built up from hard blocks S made from vinylaromatic monomers and from random soft blocks B/S made up from dienes and from vinylaromatic monomers, and which contains at least the block structure S-B/S-S, where the diene content is less than 50 percent by weight and the proportion of the soft phase formed from the blocks B/S is at least 60 percent by weight, based in each case on the entire block copolymer,P2) from 5 to 89% by weight of a block copolymer differing from P1) and made from vinylaromatic monomers and from dienes,P3) from 10 to 94% by weight of glass-clear or impact-modified polystyrene or mixtures thereof, andP4) from 0 to 84% by weight of other additives,where the total of components P1) to P4) is 100%.

    THREE-STAGE GRAFT COPOLYMERS AND THERMOPLASTIC MOLDING MATERIALS CONTAINING SAID COPOLYMERS AND HAVING GREAT TOUGHNESS
    20.
    发明专利
    THREE-STAGE GRAFT COPOLYMERS AND THERMOPLASTIC MOLDING MATERIALS CONTAINING SAID COPOLYMERS AND HAVING GREAT TOUGHNESS 未知

    公开(公告)号：CA2137428A1

    公开(公告)日：1995-06-10

    申请号：CA2137428

    申请日：1994-12-06

    Applicant: NIESSNER NORBERT ,  SEITZ FRIEDRICH ,  BASF AG

    Inventor： NIESSNER NORBERT ,  SEITZ FRIEDRICH

    IPC: C08L51/00 ,  C08F285/00 ,  C08L51/06 ,  C08F283/12 ,  C08L25/02 ,  C08L33/04 ,  C08L51/08 ,  C08L69/00

    Abstract: Graft copolymers are obtainable by (A) polymerization of from 25 to 60% by weight of a mixture con sisting essentially of (a1)from 70 to 99.9% by weight of a C1-C18-alkyl ester of acrylic acid, where the alkyl radical may be monosubstituted by phenyl or phenoxy, (a2)from 0.1 to 10% by weight of a polyfunctional monomer and (a3)from 0 to 29.9% by weight of an ethylenically unsaturated monomer which differs from (a1) and (a2) and is copolymerizable therewith in the presence of from 5 to 25% by weight of a crosslinked silicone rubber and (B) polymerization of from 30 to 50% by weight of a mixture con sisting essentially of (b1)from 50 to 100% by weight of a styrene compound of the general formula (I) I where R1 and R2 independently of one another are each hydrogen, C1-C8-alkyl or C1-C4-alkyl-monosubstituted, C1-C4-alkyl-disubstituted or C1-C4-alkyl-trisubstituted phenyl, and/or of a C1-C8-alkyl ester of methacrylic or acrylic acid, and (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 N-substituted by C1-C4-alkyl, vinyl esters of aliphatic C2-C8-carboxylic acids, acrylamide and vinyl methyl ether, in the presence of the graft copolymer (A).

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