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    53.
    发明专利
    未知

    公开(公告)号：DE59306066D1

    公开(公告)日：1997-05-07

    申请号：DE59306066

    申请日：1993-12-17

    Applicant: BASF AG

    Inventor： SCHADE CHRISTIAN ,  DETERING JUERGEN ,  TRIESELT WOLFGANG

    IPC: C08F226/06 ,  C08F279/00 ,  C08F279/02 ,  C08F283/00 ,  C08F283/01 ,  C08F283/12 ,  C08F290/00 ,  C08F290/04 ,  C08F290/06 ,  C08F291/00 ,  C08L25/08 ,  C08L39/00 ,  C08L39/06 ,  C08L51/00 ,  C08L51/04 ,  C08L51/08 ,  C08L55/00 ,  C11D3/00 ,  C11D3/37

    Abstract: PCT No. PCT/EP93/03598 Sec. 371 Date Jun. 21, 1995 Sec. 102(e) Date Jun. 21, 1995 PCT Filed Dec. 17, 1993 PCT Pub. No. WO94/14861 PCT Pub. Date Jul. 7, 1994Copolymers which are obtainable by free radical copolymerization of a mixture of (a) from 20 to 95% by weight of 1-vinylpyrrolidone, a 1-vinylimidazole or a mixture of 1-vinylpyrrolidone and/or 1-vinylimidazoles which may contain up to 20% by weight of other monoethylenically unsaturated monomers and (b) from 5 to 80% by weight of water-insoluble polymers which contain at least one ethylenically unsaturated double bond and/or one mercapto group in the molecule, processes for the preparation of the copolymers by copolymerization of the compounds of groups (a) and (b) in the abovementioned amounts in water, an alcohol, an ester or a ketone in the presence of free radical initiators, and the use of the copolymers thus obtainable and of copolymers of from 20 to 95% by weight of 1-vinylpyrrolidone or a mixture of 1-vinylpyrrolidone with up to 20% by weight of other monoethylenically unsaturated monomers and from 10 to 80% by weight of styrene as additives for detergents for inhibiting the dye transfer during the wash process, and detergents which contain the stated copolymers.

    54.
    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).

    57.
    发明专利
    未知

    公开(公告)号：ES2211047T3

    公开(公告)日：2004-07-01

    申请号：ES99907420

    申请日：1999-01-26

    Applicant: BASF AG

    Inventor： SCHADE CHRISTIAN ,  GAUSEPOHL HERMANN ,  FISCHER WOLFGANG ,  MOORS RAINER ,  WARZELHAN VOLKER

    IPC: C08F4/42 ,  C08F279/02 ,  C08F287/00

    Abstract: A process prepares impact-modified thermoplastic molding compositions which comprise a soft phase made from a rubber dispersed in a hard matrix composed of vinylaromatic monomers, where the hard matrix is prepared by anionic polymerization in the presence of a metal alkyl compound or a metal aryl compound of an element of the second or third main group, or of the second subgroup, of the Periodic Table.

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