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    11.
    发明专利
    未知

    公开(公告)号：ES2147880T3

    公开(公告)日：2000-10-01

    申请号：ES96115279

    申请日：1996-09-24

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  KNOLL KONRAD ,  WEBER MARTIN

    IPC: C08L25/12 ,  C08L25/08 ,  C08L51/00 ,  C08L51/04 ,  C08L53/00 ,  C08L53/02

    Abstract: Thermoplastic moulding materials (I), contain (A) 30-98 wt.% graft copolymer of (aK) 30-90 wt.% rubber-elastic grafting core obtd. by copolymerisation of (aK1) 80-99.99 wt.% (1-10C alkyl) acrylate(s), (aK2) 0.01-20 wt.% crosslinking monomer and (aK3) 0-40 wt.% other comonomer(s) and (aS) 10-70 wt.% grafted shell derived from (aS1) 50-100 wt.% styrene cpd. of formula (II), in which R , R = H or 1-8C alkyl, and/or a (1-8C alkyl) (meth)acrylate and (aS2) 0-50 wt.% other monomer(s), (B) 1-50 wt.% thermoplastic polymer of (b1) 50-100 wt.% styrene and/or alpha -methylstyrene (AMS), (b2) 0-50 wt.% acrylonitrile and (b3) 0-50 wt.% other monomer(s), (C) 1-70 wt.% rubber-elastic block copolymer contg. a hard phase-forming block A based on vinylaromatic monomer units and/or a first rubber-elastic (soft) phase-forming block B based on diene monomer and an (opt. sec. or further) soft phase-forming block B/A based on vinylaromatic and diene units, in which blocks A and B/A have a Tg of above 25 degrees C and below 25 degrees C resp. and the phase vol. ratio of (A):(B/A) is such that the hard phase makes up 1-40 vol.% of (C) and the diene content is less than 50 wt.%, and (D) 0-30 wt.% of a star-shaped polymer obtd. by linking several block copolymer chains based on (d1) 30-90 wt.% styrene and/or AMS and (d2) 10-70 wt.% butadiene and/or isoprene. Also claimed are films and mouldings obtd. from (I).

    16.
    发明专利
    未知

    公开(公告)号：ES2117890T3

    公开(公告)日：1998-08-16

    申请号：ES96104389

    申请日：1996-03-20

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  HOFMANN JUERGEN ,  OHLIG HILMAR ,  MAILAHN ELMAR ,  BUS KLAUS ,  CZAUDERNA BERNHARD

    IPC: C08J5/18 ,  B29B7/48 ,  B29B7/58 ,  B29C47/40 ,  B29C48/76 ,  C08J3/20 ,  C08J3/205 ,  C08L25/04 ,  C08L27/06 ,  C08L33/04 ,  C08L33/12 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02 ,  D01F6/00 ,  B29C47/76

    Abstract: The prepn. of deep draw-modified thermoplastics (T) is by mechanical dewatering of a wet elastomer component (A) contg. up to 50 wt.% residual water and mixing dewatered (A) with a thermoplastic polymer (B) in a screw - by adding (A) to a twin-screw extruder with rotating screws. This extruder contains the following sections (in the direction of flow) : (1) feed for adding (A) to the extruder ; (2) at least one crusher for dewatering (A) that contains one or more barriers each with an opening through which at least some of the water passes as a liq. ; (3) at least one section to which molten (B) is added ; (4) one or more sections with mixing, kneading and / or plasticising devices ; (5) at least one degassing section with one or more gas outlets through which the rest of the water is removed as steam ; and (6) an exit zone. Deep draw-modified moulding materials prepd. by this process are also claimed.

    18.
    发明专利
    未知

    公开(公告)号：ES2104481T3

    公开(公告)日：1997-10-01

    申请号：ES96104464

    申请日：1996-03-21

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  HOFMANN JUERGEN ,  OHLIG HILMAR ,  MAILAHN ELMAR ,  BUS KLAUS ,  CZAUDERNA BERNHARD

    IPC: B29B7/88 ,  B29B7/48 ,  B29B7/58 ,  B29B13/06 ,  B29C47/40 ,  B29C48/395 ,  B29C48/76 ,  C08G85/00 ,  C08J3/20 ,  C08J3/205 ,  C08L25/04 ,  C08L27/06 ,  C08L33/04 ,  C08L33/12 ,  C08L33/18 ,  C08L33/20 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02 ,  C08L101/00 ,  B29C47/38 ,  B29C47/76

    Abstract: A process is claimed for the prodn. of impact-modified thermoplastics (I) by (a) mechanical dehydration of a moist elastomer component (A) contg. up to 60 wt% residual water and (b) mixing the dried elastomer obtd. (A') with a thermoplastic polymer (B) in a screw machine. The process is carried out in a twin screw extruder with synchronous double-threaded screws and with the following sequence in the direction of feed: (1) a metering section for introducing component (A) into the extruder via a metering device, (2) squeezing section(s) for removing the water, with accumulator element(s) and associated water outlet(s), (3) section(s) fitted with a feeder screw or with mixing, kneading and/or other plasticising elements, (4) section(s) in which polymer (B) is added as a melt, (5) section(s) fitted with mixing, kneading and/or other plasticising elements, (6) degassing section(s) with gas outlets, in which residual water is removed as vapour, and (7) a discharge zone. The water emerging from the outlets in section (2) is partly or completely in the liq. phase, and the extruder is operated at a screw speed of 50-600 r.p.m., with a mean shear rate of 20-240 s . Also claimed are impact-modified thermoplastic moulding materials (I) obtd. by this process.

    19.
    发明专利
    未知

    公开(公告)号：AT151803T

    公开(公告)日：1997-05-15

    申请号：AT93915946

    申请日：1993-07-17

    Applicant: BASF AG

    Inventor： BESECKE SIEGMUND ,  DECKERS ANDREAS ,  GUENTHERBERG NORBERT ,  SEITZ FRIEDRICH

    IPC: C08L25/00 ,  C08F8/32 ,  C08L25/06 ,  C08L25/12 ,  C08L25/14 ,  C08L25/18 ,  C08L33/00 ,  C08L33/24

    Abstract: Transparent moulding compounds containing A) 1 to 99 wt % of a copolymer obtainable by polymerizing a mixture of monomers of a1) 50 to 90 wt % of a vinyl aromatic monomer, a2) 10 to 50 wt % acrylonitrile or methacrylonitrile or a mixture thereof, and a3) 0 to 30 wt % of another monomer, and B) 99 to 1 wt % of a polymer based on a vinyl aromatic monomer obtainable by 1) polymerizing a monomer mixture of b1) 60 to 99 wt % of a mixture consisting of b11) 100 to 50 wt % of a vinyl aromatic monomer and b12) 0 to 50 wt % acrylonitrile or methacrylonitrile or a mixture thereof, and b2) 40 to 1 wt % of a C1-C20 alkyl ester of methacrylic or acrylic acid or mixtures of such esters and 2) causing the polymers obtained according to 1) to react with an amine of the general formula (I): RNH2, in which R is C2-C10 alkyl, C5-C8 cycloalkyl, C6-C10 aryl or C6-C10-aryl-C1-C4 alkyl, where these radicals, except for the C2-C10 alkyl radical, can be substituted up to three times by radicals selected from the group consisting of C1-C4 alkyl, C1-C4 alkoxy and halogen.

    20.
    发明专利
    未知

    公开(公告)号：DE59304367D1

    公开(公告)日：1996-12-05

    申请号：DE59304367

    申请日：1993-05-17

    Applicant: BASF AG

    Inventor： HENN ROLF ,  BESECKE SIEGMUND ,  DECKERS ANDREAS ,  GUENTHERBERG NORBERT ,  BRUDERMUELLER MARTIN ,  NESTLER GERHARD ,  WASSMER KARL-HEINZ

    IPC: C08J9/12 ,  C08F2/18 ,  C08F2/44 ,  C08F257/02 ,  C08J9/16 ,  C08L25/00 ,  C08L33/00 ,  C08L33/24

    Abstract: PCT No. PCT/EP93/01222 Sec. 371 Date Nov. 22, 1994 Sec. 102(e) Date Nov. 22, 1994 PCT Filed May 17, 1993 PCT Pub. No. WO93/24561 PCT Pub. Date Dec. 9, 1993.An expandable styrene polymer comprising a) from 0 to 90% by weight of a styrene polymer or styrene copolymer other than b) contains at least 50% by weight of copolymerized styrene, b) from 10 to 100% by weight of a styrene/methacrylamide copolymer comprising from 0.5 to 50% by weight of at least one copolymerized N-substituted methacrylamide of the formula I I where R1 and R2 are identical or different and are hydrogen, C1- to C15-alkyl, C6- to C16-cycloalkyl or C6- to C20-aryl, it being possible, if R1 and R2 contain at least 2 carbon atoms, for at least 2 carbon atoms to be linked via hetero atoms, and c) from 1 to 15% by weight, based on the sum of a) and b), of an aliphatic C3- to C9-hydrocarbon and/or carbon dioxide as blowing agent.

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