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    11.
    发明专利
    未知

    公开(公告)号：NO168630B

    公开(公告)日：1991-12-09

    申请号：NO885826

    申请日：1988-12-30

    Applicant: BASF AG

    Inventor： CLERCQ ARNOLD DE ,  BERGOLD WOLFRAM ,  DEGEN HANS-JUERGEN ,  MELZER JAROSLAV

    IPC: B01D19/04

    Abstract: Defoamers in which the oil phase of the emulsions contains… (a) a C12- to C26-alcohol, distillation residues obtainable during the production of alcohols with a relatively high carbon number by oxo synthesis or by the Ziegler process and which may also be alkoxylated, and/or… (b) a fatty acid ester of C12- to C22- carboxylic acids with a mono- to tri-hydric C1- to C18-alcohol and optionally… (c) a hydrocarbon having a boiling point above 200 DEG C or fatty acids having 12 to 22 carbon atoms,… comprises 5 to 50% by weight of the make-up of the emulsion and has a mean particle size of less than 25 mu m, and in which 5 to 50 % by weight of the components (a) and (b) of the oil phase are replaced by… (d) at least one compound melting at a temperature above 70 DEG C selected from the group of fatty alcohols having at least 28 C atoms, the esters of a C1- to C22-carboxylic acid with an alcohol having at least 28 C atoms, the polyethylene waxes having a molecular weight of at least 2000, the carnauba waxes, the montanic ester waxes and the montanic acid waxes and their salts.

    12.
    发明专利
    未知

    公开(公告)号：DE3818199A1

    公开(公告)日：1989-12-07

    申请号：DE3818199

    申请日：1988-05-28

    Applicant: BASF AG

    Inventor： BENNINGHOFF NORBERT ,  JAENSCH MANFRED ,  MELZER JAROSLAV ,  NIESAR GUNTER ,  SCHUSTER WERNER

    IPC: G01N5/02 ,  G01N33/34

    Abstract: The measuring arrangement consists of successive workstations which comprise a stock of paper samples, a balance, a mechanized moistening means for the sample and a blotting means, likewise mechanized, for the moistened sample. An industrial robot controllable by a program and equipped with a gripping apparatus is provided for carrying out the measurement. This arrangement determines the liquid absorbed by paper using the Cobb method and permits the measuring method to be carried out in a fully mechanized manner.

    13.
    发明专利
    未知

    公开(公告)号：FI893232A0

    公开(公告)日：1989-07-03

    申请号：FI893232

    申请日：1989-07-03

    Applicant: BASF AG

    Inventor： HEMEL RALF ,  MELZER JAROSLAV

    IPC: D21H23/08 ,  D21F7/06 ,  D21H23/12 ,  D21D

    Abstract: The maximum amounts of the retention-influencing variable stock components which can be added are determined as a function of a predetermined degree of flocculation and typical values of the stock suspension with the aid of a mathematical relationship, and control signals for metering retention aids are derived from the amounts so that the greatest possible retention can be achieved without exceeding a set-point for the degree of flocculation.

    16.
    发明专利
    未知

    公开(公告)号：FI850410L

    公开(公告)日：1985-08-23

    申请号：FI850410

    申请日：1985-01-31

    Applicant: BASF AG

    Inventor： APPL MAX ,  GOESELE WILHELM ,  MELZER JAROSLAV ,  SCHREINER SIEGFRIED ,  TREIBER GERT

    IPC: C01B17/66 ,  D06L4/30 ,  D06P5/10 ,  D21C9/10 ,  C01B

    Abstract: Stabilized water-containing sodium dithionite formulations which have been rendered alkaline have the consistency of a pumpable paste. They additionally contain readily soluble sodium salts and/or potassium salts which are inert to sodium dithionite and whose water-solubility at 20 DEG C. exceeds 500 g/l. These salts are present in the aqueous phase in an amount of not less than 200 g/l. The pastes are useful reducing agents.

    19.
    发明专利
    未知

    公开(公告)号：FI66015C

    公开(公告)日：1984-08-10

    申请号：FI802619

    申请日：1980-08-19

    Applicant: BASF AG

    Inventor： HERTEL OTTO ,  SCHARF EMIL ,  MELZER JAROSLAV ,  FIKENTSCHER ROLF

    IPC: C08G81/00 ,  C08G69/48 ,  D21H17/55 ,  D21H17/56 ,  D21H3/58

    Abstract: Process for the production of water-soluble auxiliaries for the papermaking industry by reacting (a) 1 part by weight of a polyamidoamine obtained by condensing 1 mole of a dicarboxylic acid having from 4 to 10 carbon atoms with from 0.8 to 1.4 moles of a polyalkylene polyamine having from 3 to 10 alkyleneamine units and containing up to 8 ethyleneimine units per basic nitrogen atom with (b) 0.1 to 4 parts by weight of an alpha , omega -dichloro polyalkylene oxide obtained by reacting a polyalkylene oxide having from 8 to 100 alkylene oxide units with a compound selected from the group consisting of a thionyl chloride and phosgene and then cleaving the reaction products by heating them to a temperature of from 70 DEG to 150 DEG C. in the presence of a tertiary amine as catalyst, as crosslinking agent, at a temperature above 20 DEG C. in aqueous solution or in a water-soluble organic solvent, the reaction being carried out to a point at which the viscosity of an aqueous solution containing 20% by weight of auxiliary is from 300 to 2,500 mPas.

    20.
    发明专利
    未知

    公开(公告)号：FI802619A

    公开(公告)日：1981-03-01

    申请号：FI802619

    申请日：1980-08-19

    Applicant: BASF AG

    Inventor： HERTEL OTTO ,  SCHARF EMIL ,  MELZER JAROSLAV ,  FIKENTSCHER ROLF

    IPC: C08G81/00 ,  C08G69/48 ,  D21H17/55 ,  D21H17/56 ,  C08G

    Abstract: Process for the production of water-soluble auxiliaries for the papermaking industry by reacting (a) 1 part by weight of a polyamidoamine obtained by condensing 1 mole of a dicarboxylic acid having from 4 to 10 carbon atoms with from 0.8 to 1.4 moles of a polyalkylene polyamine having from 3 to 10 alkyleneamine units and containing up to 8 ethyleneimine units per basic nitrogen atom with (b) 0.1 to 4 parts by weight of an alpha , omega -dichloro polyalkylene oxide obtained by reacting a polyalkylene oxide having from 8 to 100 alkylene oxide units with a compound selected from the group consisting of a thionyl chloride and phosgene and then cleaving the reaction products by heating them to a temperature of from 70 DEG to 150 DEG C. in the presence of a tertiary amine as catalyst, as crosslinking agent, at a temperature above 20 DEG C. in aqueous solution or in a water-soluble organic solvent, the reaction being carried out to a point at which the viscosity of an aqueous solution containing 20% by weight of auxiliary is from 300 to 2,500 mPas.

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