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    NITROGEN-CONTAINING POLYCONDENSATES
    4.
    发明专利
    NITROGEN-CONTAINING POLYCONDENSATES 未知

    公开(公告)号：AU6182880A

    公开(公告)日：1981-03-05

    申请号：AU6182880

    申请日：1980-08-28

    Applicant: BASF AG

    Inventor： HERTEL O

    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.

    PROCESS FOR THE PREPARATION OF NITROGEN-CONTAINING CONDENSATES,AND THEIR USE
    7.
    发明专利
    PROCESS FOR THE PREPARATION OF NITROGEN-CONTAINING CONDENSATES,AND THEIR USE 未知

    公开(公告)号：ZA805326B

    公开(公告)日：1981-10-28

    申请号：ZA805326

    申请日：1980-08-28

    Applicant: BASF AG

    Inventor： FIKENTSCHER R ,  HERTEL O ,  SCHARF E ,  MELZER J

    IPC: C08G69/48 ,  C08G81/00 ,  D21H17/55 ,  D21H17/56 ,  C07C

    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.

    8.
    发明专利
    未知

    公开(公告)号：BR7201569D0

    公开(公告)日：1974-12-31

    申请号：BR156972

    申请日：1972-03-17

    Applicant: BASF AG

    Inventor： HERTEL O ,  MILLER F ,  ENDRES H ,  ENDRES H ,  HERTEL O ,  MILLER F

    IPC: C14C3/18 ,  C14C3/20

    Abstract: Water-soluble synthetic tanning agents composed of formaldehyde condensation products of non-sulfonated aromatic hydroxy compounds or the sulfomethylation products thereof with aromatic sulfonic acids or with the formaldehyde condensation products of said sulfonic acids.

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