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    Thermoplastic molding materials
    91.
    发明专利
    Thermoplastic molding materials 未知

    公开(公告)号：ZA958835B

    公开(公告)日：1997-04-21

    申请号：ZA958835

    申请日：1995-10-19

    Applicant: BASF AG

    Inventor： WEBER MARTIN ,  GRUBER FREDDY ,  GUENTHERBERG NORBERT ,  LINDENSCHMIDT GERHARD

    IPC: B29C45/00 ,  B29C48/03 ,  B29C48/305 ,  C08F265/06 ,  C08L9/06 ,  C08L21/00 ,  C08L25/02 ,  C08L25/04 ,  C08L51/00 ,  C08L51/04 ,  C08L51/06 ,  C08L53/02 ,  C08L71/02 ,  C08L ,  C08F ,  B29C

    Abstract: Thermoplastic moulding materials (I) contain: (A) 30-98 wt.% of a graft copolymer of: (ak) 30-90 wt.% rubber-elastic grafting core, obtd. by copolymerisation of: (ak1) 80-99.99 wt.% (1-10C alkyl) acrylate, (ak2) 0.01-20 wt.% crosslinking monomer, and (ak3) 0-40 wt.% other comonomer(s); and (as) 10-70 wt.% of a grafted shell derived from: (as1) 50-100 wt.% styrene cpd. of formula (a); and (as2) 0-50 wt.% other comonomer(s); (B) 1-50 wt.% of a thermoplastic polymer of: (b1) 50-100 wt.% styrene and/or alpha -methylstyrene (AMS), (b2) 0-50 wt.% acrylonitrile, and (b3) 0-50 wt.% other comonomer(s); and (C) 1-70 wt.% of a copolymer of: (c1) 30-90 wt.% styrene and AMS, (c2) 10-70 wt.% butadiene, and (c3) 0-30 wt.% other comonomer(s); comprising: (i) block X obtd. by polymerising (c2) and opt. (c3) and block Y by polymerising (c1) and opt. (c3), or (ii) a polymer with a butadiene-rich initial segment, increasing amts. of styrene along the chain, and a terminal segment of homo-polystyrene (PS); or (iii) a star-shaped polymer obtd. by linking several polymer chains contg. (c1)-(c3) with polyfunctional mols., and in which the olefinic double bonds are completely or almost completely hydrogenated. Also claimed are films and moulded prods. obtd. from (I). R , R = H or 1-8C alkyl, and/or (1-8C alkyl) (meth)acrylate.

    92.
    发明专利
    未知

    公开(公告)号：AT144783T

    公开(公告)日：1996-11-15

    申请号：AT93910002

    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.

    Moulding compsn. having reduced water absorption
    93.
    发明专利
    Moulding compsn. having reduced water absorption 未知

    公开(公告)号：DE4407485A1

    公开(公告)日：1995-09-14

    申请号：DE4407485

    申请日：1994-03-07

    Applicant: BASF AG

    Inventor： WEBER MARTIN DR ,  GUENTHERBERG NORBERT

    IPC: C08L35/06 ,  C08L71/00 ,  C08L81/06 ,  C08J3/00 ,  D01F6/94

    Abstract: A moulding compsn. contains (A) 1-99 wt.% of a polyarylene ether; (B) 1-99 wt.% of a copolymer contg. (b1) and aromatic vinyl cpd., (b2) and alpha,beta-unsatd. dicarboxylic acid, and (B3) an alpha,beta-unsatd. dicarboxylic acid imide; (C) 0-60 wt.% of a fibrous or particulate filler selected from carbon, glass quartz, aramid and alkali(ne earth) carbonate or silicate; (D) 0.45 wt.% of an impact modifying rubber; and (E) 0-40 wt.% of a flame retardant, pigment and stabiliser. Also claimed are the use of the compsn. to produce fibres, films or mouldings; to produce household or medical articles; for the prodn. of compatibility improvers; the films or mouldings produced from the compsn. and a process for the prepn. of the compatibility improver.

    96.
    发明专利
    未知

    公开(公告)号：DE502005000978D1

    公开(公告)日：2007-08-16

    申请号：DE502005000978

    申请日：2005-02-03

    Applicant: BASF AG

    Inventor： STORK MARTIN ,  WEBER MARTIN ,  GOTTSCHALK AXEL ,  RIECHERS SVEN ,  GUENTHERBERG NORBERT ,  FISCHER WOLFGANG ,  LEBER LUDGER ,  ITTEMANN PETER ,  JUENGLING STEPHAN ,  DUIJZINGS WIL

    IPC: C08L51/04 ,  C08F279/02 ,  C08F279/04 ,  C08F285/00 ,  C08L55/02

    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.

    97.
    发明专利
    未知

    公开(公告)号：DE502004003730D1

    公开(公告)日：2007-06-14

    申请号：DE502004003730

    申请日：2004-12-14

    Applicant: BASF AG

    Inventor： STORK MARTIN ,  WEBER MARTIN ,  GOTTSCHALK AXEL ,  RIECHERS SVEN ,  GUENTHERBERG NORBERT ,  FISCHER WOLFGANG ,  LEBER LUDGER ,  ITTEMANN PETER ,  JUENGLING STEPHAN

    IPC: C08L33/12 ,  C08F257/02 ,  C08F279/02 ,  C08F285/00 ,  C08L25/12 ,  C08L35/06 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02

    Abstract: The present invention relates to thermoplastic molding compositions comprising a mixture of (A) from 30 to 69% by weight, based on the sum of components (A), (B) and (C), of a methyl methacrylate polymer, (B) from 30 to 69% by weight, based on the sum of components (A), (B) and (C), of a copolymer obtainable by polymerizing a styrenic monomer and a vinyl cyanide, and (C) from 1 to 40% by weight, based on the sum of components (A), (B) and (C), of a graft copolymer obtainable from (C1) from 60 to 90% by weight, based on (C), of a core obtainable by polymerizing a 1,3-diene and a styrenic monomer, (C2) from 5 to 20% by weight, based on (C), of a first graft shell, and (C3) from 5 to 20% by weight, based on (C), of a second graft shell composed of an alkyl (meth)acrylate polymer, with the proviso that the ratio of (C2) to (C3) is in the range from 2:1 to 1:2.

    98.
    发明专利
    未知

    公开(公告)号：DE102005054151A1

    公开(公告)日：2007-05-16

    申请号：DE102005054151

    申请日：2005-11-14

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  HOFMANN JUERGEN ,  WASMER KARL-HEINZ ,  LOTH WOLFGANG ,  SCHIERHOLZ JENS-UWE ,  SCHMAUS PAULUS ,  MOURS MARIAN ,  SCHADE CHRISTIAN ,  ITTEMANN PETER ,  HEINEN HARTMUT ,  CZAUDERNA BERNHARD ,  SAUER MICHAEL ,  BARDON RAINER ,  KRUEGER MARCO

    IPC: C08F6/10 ,  B01D1/06 ,  B01D19/00 ,  C08J3/00 ,  F28F1/40

    Abstract: The invention relates to a tube bundle heat exchanger (R) for removing dissolved substances from a polymer solution (P) by degassing, having a bundle of tubes (R) which are arranged parallel to one another and vertically and are fastened at both ends in each case in one tube plate (B), and having a degassing region below the lower tube plate (B), having an insert (1) in each tube (R), which insert (1) narrows the free throughflow cross section through the tube (R), and wherein the polymer solution (P) is supplied into the tubes (R) in a single-phase liquid state, and having a casing space around the tubes (R) which is traversed by a heat carrier, wherein the degassing takes place by means of a pressure drop between the inlet pressure of the polymer solution (P) in the tube bundle heat exchanger (R) and the degassing region, characterized in that each insert (1) is designed in such a way as to generate a pressure step between the inlet pressure and the pressure in the degassing region, by means of which pressure step a predefined low residual content of dissolved substances is obtained in the degassed polymer, and an additional heat input which is necessary for this purpose takes place via the heat carrier into the single-phase liquid polymer solution (P).

    99.
    发明专利
    未知

    公开(公告)号：DE102005006765A1

    公开(公告)日：2006-08-17

    申请号：DE102005006765

    申请日：2005-02-15

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  FISCHER WOLFGANG ,  RADULLA MANFRED

    IPC: C08J3/16 ,  C08L15/00

    Abstract: A process for the salt-free coagulation of polymer dispersions in a rotor/stator assembly is disclosed. The rotor/stator assembly includes a casing, a rotor shaft rotatably mounted within the casing, a rotor having a conical surface affixed to the rotor shaft, and a stator affixed to the casing and concentrically associated with the rotor. The conical surface faces a surface of the stator to form an adjustable shear gap, which is surrounded by an annular space. A polymer dispersion is fed into the assembly and conveyed through the shear gap. During this conveyance, the polymer dispersion is precipitated at a predetermined shear rate and a predetermined shear deformation. The polymer dispersion is discharged from the assembly through an outlet neck, and the assembly is flushed with water using one or more ports formed in at least one of a pipeline coupled to the axial feed neck, the stator, and the casing.

    100.
    发明专利
    未知

    公开(公告)号：AT285885T

    公开(公告)日：2005-01-15

    申请号：AT01982395

    申请日：2001-10-04

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  HOFMANN JUERGEN ,  MAILAHN ELMAR ,  OHLIG HILMAR

    IPC: B29B7/38 ,  B29B7/82 ,  B29C47/10 ,  B29C48/38 ,  B29C47/50

    Abstract: The present invention relates to a mixing apparatus at least composed of a screw-based machine S 1 and a screw-based machine S 2 , where S 1 has heating equipment, at least in the plasticizing and homogenizing zone, and where the outlet from S 2 has been connected to the screw-containing barrel of S 1 , within the plasticizing or homogenizing zone of S 1 , a substantive feature of which is that the connection between S 1 and S 2 is brought about by a connector which has cooling equipment effective as far as the inner wall of the screw-containing barrel of S 1 , and to a process for preparing thermoplastically processable molding compositions, in particular additive masterbatches, from at least one thermoplastic component C 1 and at least one component C 2 , where the melting point or decomposition temperature T M C2 of C 2 is lower, by at least about 50° C., than the temperature T H C1 , which is the lower limit of the thermoforming range of C 1 , and where most of C 2 is melted only after contact with C 1.

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