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    13.
    发明专利
    未知

    公开(公告)号：DE10037280A1

    公开(公告)日：2002-02-07

    申请号：DE10037280

    申请日：2000-07-28

    Applicant: BASF AG

    Inventor： DUIJZINGS WIL ,  OEPEN SABINE ,  NIESNER NORBERT ,  BREULMANN MICHAEL ,  KORB HARDY

    IPC: C08C1/07 ,  C08J3/16 ,  C08L21/02 ,  C08L51/04 ,  C08J5/18

    Abstract: The invention relates to a method for agglomerizing at least one dispersed rubber (A) in an aqueous phase by adding a dispersion of at least one agglomeration polymer (B) in the aqueous phase. The invention is characterised by using an agglomeration polymer as B, containing essentially no free acid groups and by carrying out the agglomerization in the presence of at least one basic electrolyte.

    Production of rubber particles containing conjugated diene and monoethylenically unsaturated comonomer, useful for production of thermoplastic molded articles, comprises use of seed latex
    14.
    发明专利
    Production of rubber particles containing conjugated diene and monoethylenically unsaturated comonomer, useful for production of thermoplastic molded articles, comprises use of seed latex 未知

    公开(公告)号：DE10013733A1

    公开(公告)日：2001-09-27

    申请号：DE10013733

    申请日：2000-03-21

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  CZAUDERNA BERNHARD ,  BREULMANN MICHAEL ,  OEPEN SABINE ,  DUIJZINGS WIL ,  NIESNER NORBERT

    IPC: C08F2/00 ,  C08F2/22 ,  C08F2/24 ,  C08F36/00 ,  C08F36/04 ,  C08F36/06 ,  C08F236/04 ,  C08F212/08 ,  C08F220/18 ,  C08F220/44

    Abstract: A process for the production of rubber particles containing 80-100 wt.% of a conjugated diene monomer and 0-20 wt.% of a monoethylenically unsaturated comonomer comprises emulsion polymerization in the presence of an emulsifier and an initiator whereby the monomers are added either in polymerized form as a seed latex or in monomeric form via subsequent in-situ polymerization to form a seed latex. A process for the production of rubber particles (I) containing in polymerized form (A) 80-100 wt.% of at least one conjugated diene monomer and (B) 0-20 wt.% of at least one monoethylenically unsaturated comonomer, comprises emulsion polymerization in the presence of an emulsifier and an initiator whereby: (1) a mixture (M1) comprising (M1a) 20-100 wt.% water and (M1b) 0.1-100 wt.% emulsifier is added; (2) simultaneously or thereafter a mixture (M2) comprising (M2a) 90-100 wt.% of styrene, alpha -methylstyrene, butadiene, n-butylacrylate, methylmethacrylate and/or acrylonitrile and (M2b) 0-10 wt.% of at least one copolymerizable monomer whereby monomers (M2a) and (M2b) are added either in polymerized form as a seed latex or in monomeric form via subsequent in-situ polymerization to form a seed latex, or as a mixture of polymerized and monomeric forms, whereby the seed-latex polymer has an average mol. wt. of greater than 2000; (3) the polymerization of the resulting mixture is initiated in the presence of the polymerization initiator at 5-95 [deg]C; (4) simultaneously or thereafter a mixture (M3) comprising (M3a) 0-100 wt.% comonomer (B) (wrt (B)) and (M3b) 0-25 wt.% diene monomer (A) (wrt (A)) is added; (5) simultaneously or thereafter a mixture (M4) comprising (M4a) the residual 75-100 wt.% (A) (wrt (A)) and (M4b) the residual 0-100 wt.% (B) (wrt (B)); and (6) polymerization is carried out to a conversion of 90-95 (wrt the total amount of monomers) whereby the residual 0-80 wt.% of the emulsion water and the residual 0-99.9 wt.% of the emulsifier are added individually or separately at one or more steps (2)-(5). An independent claim is included for the resulting rubber particles (I).

    15.
    发明专利
    未知

    公开(公告)号：DE10003508A1

    公开(公告)日：2001-08-02

    申请号：DE10003508

    申请日：2000-01-27

    Applicant: BASF AG

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

    IPC: C08F265/04 ,  C08F291/02 ,  C08L51/04 ,  C08L55/02

    Abstract: The invention relates to a method for producing impact resistant plastics on the basis of cross-linked rubber particles. The inventive method comprises the following steps: (a) producing an aqueous dispersion or suspension of particles of a cross-linked rubber from a first monomer mixture that has a conjugated diene content of less than 50 wt.- %, preferably less than 5 wt.- %, especially less than 2 wt.- %, (b) optionally precipitating the dispersion or suspension whereby an aqueous rubber particle mixture with a water content of at least 5 wt.- % is obtained, (c) adding said dispersion or suspension of the rubber particles or the aqueous rubber particle mixture to a second mixture that contains at least one further monomer, and (d) polymerizing the monomers of the second mixture. The invention also relates to the plastic obtained according to the inventive method.

    17.
    发明专利
    未知

    公开(公告)号：DE19951648A1

    公开(公告)日：2001-05-03

    申请号：DE19951648

    申请日：1999-10-27

    Applicant: BASF AG

    Inventor： OEPEN SABINE ,  NIESNER NORBERT ,  BREULMANN MICHAEL ,  GUENTHERBERG NORBERT ,  DUIJZINGS WIL

    IPC: C08F279/04 ,  C08K5/54 ,  C08L9/02 ,  C08L51/04 ,  C08L55/02 ,  C08L83/04

    Abstract: The invention relates to a method for reducing undesired coloration changes (Cold Stress Whitening) in impact-resistant thermoplastic moulding compounds (F), caused by low temperatures. Said moulding compounds contain at least one elastomeric graft polymer (A) and at least one thermoplastic polymer (B). According to the invention, 10 to 200 ppm of at least one polyorganosiloxane (S), based upon the moulding compounds (F) is added to said impact-resistant thermoplastic moulding materials (F).

    19.
    发明专利
    未知

    公开(公告)号：DE19846252A1

    公开(公告)日：2000-04-13

    申请号：DE19846252

    申请日：1998-10-07

    Applicant: BASF AG

    Inventor： MAC KEE GRAHAM EDMUND ,  GOERRISSEN HEINER ,  GUENTHERBERG NORBERT ,  NIESNER NORBERT ,  WEBER MARTIN

    IPC: C08L23/16 ,  C08L51/00 ,  C08L51/08 ,  C08L69/00 ,  C08L83/04 ,  C08L101/00 ,  H01B3/28 ,  H01B3/42 ,  H01B3/44 ,  C08K7/02 ,  C08L23/00 ,  C08L33/00 ,  H02J7/00 ,  H05K5/00

    Abstract: The invention relates to the utilization of a shaped thermoplastic material different from ABS for the production of housings and the semi-finished products thereof for electrical devices containing small transformers, containing, in relation to the sum of the portions of components A, B and C and optionally D, a total of 100 % by weight of a: 1-48 % by weight of a single or multiphase particulate emulsion polymer with a glass transition temperature below O DEG C in at least one phase and a mean particle size of 50-1000 nm, preferably 50-800 nm as component A; b: 1-48 % by weight of at least one amorphous or semi-crystalline polymer as component B; c: 51-98 % by weight of a polycarbonate as component C and d: 0-47 % by weight of usual additives and/or fibrous or particulate filling materials or the mixtures thereof as component D.

    20.
    发明专利
    未知

    公开(公告)号：DE19846246A1

    公开(公告)日：2000-04-13

    申请号：DE19846246

    申请日：1998-10-07

    Applicant: BASF AG

    Inventor： WEBER MARTIN ,  GOERRISSEN HEINER ,  MAC KEE GRAHAM EDMUND ,  NIESNER NORBERT ,  GUENTHERBERG NORBERT

    IPC: C08L23/16 ,  C08L25/12 ,  C08L33/00 ,  C08L51/00 ,  C08L69/00 ,  C08L51/08 ,  B62D29/04 ,  C08L23/00 ,  C08L81/04

    Abstract: The invention relates to the use of a thermoplastic moulding material which is different from ABS as a swell-resistant moulding material for producing vehicle body parts and semi-finished products for vehicles, containing the following in relation to the sum of the quantities of components A, B, and C and optionally, D and E, which is 100 wt. % overall: a: 1 to 48 wt. % of at least one single or multiphase particulate emulsion polymer with a glass transition temperature of less than 0 DEG C in at least one phase and an average particle size of 50 to 1000 nm, preferably 50 to 500 nm as component A; b: 1 to 48 wt. % of at least one amorphous or partially crystalline polymer as component B; c: 51 to 98 wt. % polycarbonates as component C; d: 0 to 47 wt. % usual additives and/or fibrous or particulate fillers or their mixtures as component D; and e: 0 to 5 wt. % of at least one low molecular halogen-free acid as component E.

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