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    26.
    发明专利
    未知

    公开(公告)号：DE4306608A1

    公开(公告)日：1994-11-24

    申请号：DE4306608

    申请日：1993-03-03

    Applicant: BASF AG

    Inventor： LINHART FRIEDRICH DR ,  MOENCH DIETMAR DR ,  SCHERR GUENTER DR ,  REUTHER WOLFGANG DR ,  LORENCAK PRIMOZ DR

    IPC: C08F2/44 ,  C08G18/58 ,  C08G59/18 ,  C08G59/40 ,  C08G73/00 ,  C09D17/00 ,  C09D133/02 ,  C09D133/04 ,  C09D171/00 ,  C09D171/02 ,  C09D175/00 ,  C09D175/04 ,  C09D177/00 ,  C09D179/00 ,  C09K23/52 ,  D21H17/54 ,  D21H17/55 ,  D21H17/56 ,  D21H17/57 ,  B01F17/52 ,  D21H17/74

    Abstract: PCT No. PCT/EP94/00480 Sec. 371 Date Aug. 23, 1995 Sec. 102(e) Date Aug. 23, 1995 PCT Filed Feb. 19, 1994 PCT Pub. No. WO94/20681 PCT Pub. Date Sep. 15, 1994Aqueous pigment slurries which contain up to 80% by weight of a finely divided pigment in dispersed form and from 0.1 to 5% by weight of dispersants which are obtainable by reacting (a) polyalkylenepolyamines, polyamidoamines, polyamidoamines grafted with ethyleneimine, polyetheramines and mixtures of the stated compounds and (b) monoethylenically unsaturated carboxylic acids, salts, esters, amides or nitriles of monoethylenically unsaturated carboxylic acids, chlorocarboxylic acids and/or glycidyl compounds and, if required, (c) bifunctional or polyfunctional crosslinking agents which have a halohydrin, glycidyl, aziridine or isocyanate unit or a halogen atom as a functional group, to give water-soluble condensates which, in 20% strength by weight aqueous solution at 20 DEG C., have a viscosity of at least 100 mPa.s are prepared by milling or dispersing pigments in the presence of the dispersants and water and are used as additives to paper stock in the production of filler-containing paper.

    28.
    发明专利
    未知

    公开(公告)号：DE58905366D1

    公开(公告)日：1993-09-30

    申请号：DE58905366

    申请日：1989-06-10

    Applicant: BASF AG

    Inventor： HEMEL RALF ,  LINHART FRIEDRICH DR

    IPC: G01N15/06 ,  C02F1/52 ,  G01N1/10 ,  G01N15/14

    Abstract: A flow-through cuvette (1), through which the sample flow (2) - surrounded by an enveloping flow (3) - is passed, is equipped with an optical laser measuring device (4-7). For use in systems under pressure, a pressure and quantity stabiliser (9-11) is connected upstream of the input (8) for the enveloping flow medium of the cuvette, and a controller (13, 14, 16, 17) for the quantity of the sample flow and enveloping flow is connected downstream of the output (12) of the cuvette.

    29.
    发明专利
    未知

    公开(公告)号：DE3586046D1

    公开(公告)日：1992-06-17

    申请号：DE3586046

    申请日：1985-11-21

    Applicant: BASF AG

    Inventor： BRUNNMUELLER FRITZ DR ,  KROENER MICHAEL DR ,  HARTMANN HEINRICH DR ,  LINHART FRIEDRICH DR ,  PFITZNER KLAUS DR

    IPC: C08F8/00 ,  C08F8/12 ,  C08F26/00 ,  C08F26/02

    Abstract: Linear polymers (I) contg. units of formula -CH2-CH(NH2)-and having Fikentscher K value (in 0.5% aq. NaCl at 25 deg. C) 10-200 are prepd. in powder form by reacting a powdered polymer -CH2CH(NHCHO)- (II) of N-vinylformamide with a gaseous-hydrogen halide acid at up to 200 deg. C in presence of max. 5% water on wt. (II). Pref. (III) is reacted with HCl or HBr in presence of max. 2.5 wt.% water, partic. in absence of water. Reaction is carried out in inert solvent which does not dissol-e (I) and (II) particles, esp. dioxan, terahydrofuran, or cyclohexane. Or reaction is carried out in a 1-8C alcohol, partic. with inert suspending agent also present. Particle size (II) is 10-1000, partic. 50-400 microns. Reaction temp. is 35-150 deg. C.

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