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    METHOD AND DEVICE FOR ANALYZING COLLOID PARTICLE BY FIELD FLOW FRACTIONATION IN PARALLEL
    1.
    发明专利
    METHOD AND DEVICE FOR ANALYZING COLLOID PARTICLE BY FIELD FLOW FRACTIONATION IN PARALLEL 失效

    公开(公告)号：JP2001059838A

    公开(公告)日：2001-03-06

    申请号：JP2000202300

    申请日：2000-07-04

    Applicant: BASF AG

    Inventor： SCHUCH HORST ,  SCHROF WOLFGANG DR

    IPC: G01N30/02 ,  G01N30/00 ,  G01N30/46 ,  G01N30/62

    Abstract: PROBLEM TO BE SOLVED: To quickly acquire accurate information in regard to liquid flow by using the liquid flow supplied from a pump for a plurality of separation channels and a changeover device. SOLUTION: Carrier liquid is supplied to each separation channel 2 by a pump 1, a flow control valve is provided in the inlet 4 of each separation channel 4, and the carrier liquid is introduced and passed to each separation channel 2 by same pressure. The whole separation channel 2 is made same structure, made the same flow condition in regard to the carrier liquid, and an analytical result is directly comparable. A sample is introduced from each inlet 4 by a changeover valve. A traverse flow is supplied to a flowmeter 6 through a multi- directional valve 5 and an outlet pipe, flow resistance is provided in the outlet pipe, and is the same pressure drop of the flowmeter 6. After the sample passing through the separation channel 2 corresponding thereto together with the axial flow of the carrier liquid passes through one separation channel 2 respectively, it is supplied to the other analyzer or a measuring device through the other multi-directional valve 7. A detector and the individual separation channel 2 are connected by the multi-directional valve 7 at a constant cycle.

    COPOLIMERO ANFOLITICO Y SU UTILIZACION.
    6.
    发明专利
    COPOLIMERO ANFOLITICO Y SU UTILIZACION. 未知

    公开(公告)号：ES2279230T3

    公开(公告)日：2007-08-16

    申请号：ES03813917

    申请日：2003-12-29

    Applicant: BASF AG

    Inventor： NGUYEN-KIM SON ,  SCHUCH HORST ,  KAISER THOMAS ,  WOOD CLAUDIA ,  HOSSEL PETER

    IPC: C08F246/00 ,  A61K8/72 ,  A61K8/81 ,  A61Q5/00 ,  A61Q5/06 ,  A61Q5/12 ,  A61Q19/00 ,  C08F220/04 ,  C08F220/34 ,  C08F220/60 ,  C08F226/10

    Abstract: Producto cosmético o farmacéutico que contiene: A) por lo menos un copolímero anfolítico, que se obtiene por copolimerización por radicales de a) por lo menos un compuesto con un doble enlace insaturado alfa- beta-etilénico polimerizable por radicales y de por lo menos un grupo anionógeno y / o aniónico por molécula, b) por lo menos un compuesto con un doble enlace insaturado alfa beta-etilénico polimerizable por radicales y de por lo menos un grupo cationógeno y / o catiónico por molécula, c) por lo menos un compuesto insaturado alfa beta-etilénico con grupos amido de fórmula general I ** ver fórmula** donde uno de los radicales R1 a R3 es un grupo de fórmula CH2 =CR4 con R4 = B o alquilo C1-C4 y los demás radicales R1 a R3, independientes entre ellos, son H, alquilo, cicloalquilo, heterocicloalquilo, arilo o betarilo, donde R1 y R2 junto con los grupos amido, a los cuales se encuentran unidos, pueden ser también una lactama con anillo de 5 a 8 átomos, donde R2 y R3 junto con el átomo del nitrógeno, al cual se encuentran unidos, pueden ser un heterociclo de cinco a siete miembros, con la condición de que la suma de los átomos de carbono de los radicales de R1, R2 y R3 sea 8, como máximo, o un complejo polielectrolítico que contiene, por lo menos, tal copolímero anfolítico y además, por lo menos, algún otro polielectrolito diferente y B) por lo menos un vehículo cosméticamente aceptable.

    Preparation of a particle-forming rubber, useful in the preparation of a rubber-like grafted-copolymer, comprises agglomeration of a particle-forming substrate rubber in an emulsion by means of a particle-forming agglomerated latex A
    7.
    发明专利
    Preparation of a particle-forming rubber, useful in the preparation of a rubber-like grafted-copolymer, comprises agglomeration of a particle-forming substrate rubber in an emulsion by means of a particle-forming agglomerated latex A 未知

    公开(公告)号：DE102005022632A1

    公开(公告)日：2006-11-16

    申请号：DE102005022632

    申请日：2005-05-11

    Applicant: BASF AG

    Inventor： MC KEE GRAHAM EDMUND ,  SCHUCH HORST ,  CZAUDERNA BERNHARD ,  DUIJZINGS WIL

    IPC: C08L51/04 ,  C08C1/07 ,  C08F279/00 ,  C08L25/04 ,  C08L67/00 ,  C08L71/00 ,  C08L77/00

    Abstract: Preparation of a particle-forming rubber (I) comprising at least a fraction of agglomerated particle, where at least a fraction exhibits a defined non-uniformity, comprises agglomeration of a particle-forming substrate rubber that is present in an emulsion by means of at least one particle-forming agglomerated latex A exhibiting a defined non-uniformity of = 0.65. Independent claims are included for: (1) a particle-forming rubber that is produced by the process; (2) an agglomerated lattice A with a defined non-uniformity produced by emulsion polymerization of one or more hydrophobic monomer followed by emulsion polymerization of a monomer mixture comprising hydrophobic and hydrophilic monomer in the presence of an alkali salt of an acid, a sulfate or sulfonate with 10-20C aliphatic residue as an emulsifier; (3) use of an agglomerated lattice A for the manufacture of the particle-forming substrate rubber in emulsion for the production of particle-forming rubber containing at least a fraction of agglomerated particle, where at least a fraction exhibits defined non-uniformity of less than 1; (4) a rubber-like graft-copolymer (p1) formed from 30-99 (preferably 30-90) wt.%, based on p1, of a particle-forming rubber obtained from the above process, as a graft substructure; 1-70 (preferably 10-70) wt.%, based on p1, of a graft substructure grafted coating (p2) with a glass transition temperature of more than 50[deg]C, preferably formed from 50-100 wt.%, related on (p2), of at least one vinyl-aromatic monomer (p21), 0-50 wt.%, based on (p2), of at least a polar, copolymerizable comonomer (p22), preferably acrylonitrile, methacrylnitrile, ester of (meth)acryl acid with 1-4C alkyl, malein acidanhydride and its imide, (meth) acrylamide and vinylalkylether with 1-8C alkyl; 0-40 wt.%, based on (p2), of one or more further monoethylenic unsaturated monomer (p23), where (p21), (p22) and (p23) constitutes to 100 wt.%; or (p24) 50-100 wt.-%, based on (p2), (p25) 0-50 wt.%, based on (p2), of at least a further copolymerizable monomer, preferably styrol, (meth)acrylnitrile or ester of acrylic acid, where the (p24) and (p25) constitutes to 100 wt.%; (5) a thermoplastic molded mass comprising a rubber-like grafted-copolymer (t0) and matrix polymer (t2), preferably polymer obtained from styrol-acrylnitrile, (alpha -methylstyrol-acrylnitrile)-, styrolmaleinimide and styrol-maleinic acid anhydride and/or (t2) partial-crystalline, preferably linear, polyamide such as polyamide-6, polyamide-6,6, polyamide-4,6, polyamide-6,12 or partial-crystalline copolyamide; and/or (t3) polyester like polymethylmethacrylate; and/or (t4) aromatic aliphatic polyester, preferably polybutyleneterephthalate, polypropyleneterephthalate, polyethylenenaphthalate or polyethyleneterephthalate; and/or (t5) polyoxyalkylene e.g. polyoxymethylene; and/or (t6) polycarbonate; and/or (t7) polyarylenesulfide, preferably polyphenylenesulfide; and (t8) optionally fiber-or particle-forming fillers or their mixtures; and (t9) optionally other additives; (6) a molded mass obtained from thermoplastic molded mass; and (7) a procedure for the control of non-uniformity of at least an agglomerated fraction of particle-forming through agglomeration agent of agglomerated lattice A producing rubber, where the agglomerated lattice A is particle-forming, comprising emulsion polymerization of at least a hydrophobic monomer followed by a monomer mixture extensively hydrophobic and hydrophilic monomer in the presence of an emulsifier, and with a particle-forming substrate rubber that is present in the emulsion.

    Continuous on-line determination of particle size distribution in polymer dispersions involves simultaneous optical counting and crossflow fractionation using surfactant solution as carrier and flushing liquids in the fractionator
    9.
    发明专利
    Continuous on-line determination of particle size distribution in polymer dispersions involves simultaneous optical counting and crossflow fractionation using surfactant solution as carrier and flushing liquids in the fractionator 未知

    公开(公告)号：DE10060098A1

    公开(公告)日：2002-06-06

    申请号：DE10060098

    申请日：2000-12-04

    Applicant: BASF AG

    Inventor： HUEBINGER WOLFGANG ,  KNIERIEM TORSTEN ,  LAMPRECHT JOSEF ,  SCHOLZ NORBERT ,  SCHUCH HORST ,  NORD SIMON

    IPC: G01N15/02 ,  G01N15/14

    Abstract: Continuous determination of particle size distribution in polymer dispersions involves simultaneous optical counting and crossflow fractionation of sample streams diluted with water and surfactant solution, using surfactant solution as carrier in the fractionator and flushing the analyzer section with surfactant solution after every 100 samples at the latest. A method for the continuous determination of particle size distribution (PSD) in polymer dispersions by simultaneous characterization by means of optical counting of single particles and flow-fieldflow fractionation (crossflow fractionation) or hydrodynamic fractionation involves (i) continuously taking a sample stream from a product line, (ii) diluting the sample stream with high-purity water and aqueous surfactant solution to a solid content of 0.3-20 g/l and a surfactant content of 0.1-5 g/l, (iii) taking off a part stream (continuously or discontinuously) and determining the PSD in at least one partial size range between 0.5 and 1000 microns with the aid of single particle analyzer(s) and (iv) taking repeated discontinuous samples from the diluted stream and determining the PSD in at least one size range which includes the range 0.005-2 microns, with the aid of a cross-flow fractionator with UV detector. The carrier liquid used in the fractionator is a surfactant solution with a concentration of 0.1-5 g/l and the analyzer section of the fractionator is washed with a flushing solution containing 2-30 g/l surfactant, at the latest after every 100 repeats of step (iv).

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