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    PREPARATION OF WATER-SOLUBLE, NITROGEN-CONTAINING CONDENSATES AND THEIR USE IN PAPERMAKING
    43.
    发明专利
    PREPARATION OF WATER-SOLUBLE, NITROGEN-CONTAINING CONDENSATES AND THEIR USE IN PAPERMAKING 未知

    公开(公告)号：AU550211B2

    公开(公告)日：1986-03-06

    申请号：AU8815082

    申请日：1982-09-09

    Applicant: BASF AG

    Inventor： HERTEL OTTO ,  LINHART FRIEDRICH ,  SCHARF EMIL

    IPC: C08G69/00 ,  C08G69/48 ,  C08G73/02 ,  D21H17/55 ,  D21H21/10 ,  D21F1/66

    Abstract: Water-soluble, nitrogen-containing condensates are prepared by reacting a cross-linking agent, obtained by (a) condensing 1 mole of a dicarboxylic acid of 4 to 10 carbon atoms with from 1 to 2 moles of a polyalkylenepolyamine, having 3-10 basic nitrogen atoms in the molecule, to give a polyamidoamine and (b) reacting the polyamidoamine with epichlorohydrin and/or dichlorohydrin in aqueous solution at a pH of from 4.5 to 8.5 and at below 100 DEG C., from 1 to 130 parts by weight of epichlorohydrin and/or dichlorohydrin being employed per 100 parts by weight of the polyamidoamine from (a), with ammonia, a primary amine, a polyamine containing 2 to 4 N atoms, a polyether-amine or a polyamidoamine in aqueous solution at below 100 DEG C. The condensates are used as retention aids, flocculants and drainage aids in papermaking.

    44.
    发明专利
    未知

    公开(公告)号：NO152374B

    公开(公告)日：1985-06-10

    申请号：NO802543

    申请日：1980-08-28

    Applicant: BASF AG

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

    IPC: C08G69/48 ,  D21H17/55 ,  C08G81/00 ,  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.

    PREPARATION OF WATER-SOLUBLE, NITROGEN-CONTAINING CONDENSATES AND THEIR USE IN PAPERMAKING
    45.
    发明专利
    PREPARATION OF WATER-SOLUBLE, NITROGEN-CONTAINING CONDENSATES AND THEIR USE IN PAPERMAKING 未知

    公开(公告)号：ZA826608B

    公开(公告)日：1983-10-26

    申请号：ZA826608

    申请日：1982-09-09

    Applicant: BASF AG

    Inventor： HERTEL OTTO ,  LINHART FRIEDRICH ,  SCHARF EMIL

    IPC: C08G69/00 ,  C08G69/48 ,  C08G73/02 ,  D21H17/55 ,  D21H21/10 ,  D21H ,  C07C ,  C08G

    Abstract: Water-soluble, nitrogen-containing condensates are prepared by reacting a cross-linking agent, obtained by (a) condensing 1 mole of a dicarboxylic acid of 4 to 10 carbon atoms with from 1 to 2 moles of a polyalkylenepolyamine, having 3-10 basic nitrogen atoms in the molecule, to give a polyamidoamine and (b) reacting the polyamidoamine with epichlorohydrin and/or dichlorohydrin in aqueous solution at a pH of from 4.5 to 8.5 and at below 100 DEG C., from 1 to 130 parts by weight of epichlorohydrin and/or dichlorohydrin being employed per 100 parts by weight of the polyamidoamine from (a), with ammonia, a primary amine, a polyamine containing 2 to 4 N atoms, a polyether-amine or a polyamidoamine in aqueous solution at below 100 DEG C. The condensates are used as retention aids, flocculants and drainage aids in papermaking.

    PREPARATION OF WATER-SOLUBLE, NITROGEN-CONTAINING CONDENSATES AND THEIR USE IN PAPERMAKING
    46.
    发明专利
    PREPARATION OF WATER-SOLUBLE, NITROGEN-CONTAINING CONDENSATES AND THEIR USE IN PAPERMAKING 未知

    公开(公告)号：AU8815082A

    公开(公告)日：1983-03-17

    申请号：AU8815082

    申请日：1982-09-09

    Applicant: BASF AG

    Inventor： HERTEL OTTO ,  LINHART FRIEDRICH ,  SCHARF EMIL

    IPC: C08G69/00 ,  C08G69/48 ,  C08G73/02 ,  D21H17/55 ,  D21H21/10 ,  D21F1/66

    Abstract: Water-soluble, nitrogen-containing condensates are prepared by reacting a cross-linking agent, obtained by (a) condensing 1 mole of a dicarboxylic acid of 4 to 10 carbon atoms with from 1 to 2 moles of a polyalkylenepolyamine, having 3-10 basic nitrogen atoms in the molecule, to give a polyamidoamine and (b) reacting the polyamidoamine with epichlorohydrin and/or dichlorohydrin in aqueous solution at a pH of from 4.5 to 8.5 and at below 100 DEG C., from 1 to 130 parts by weight of epichlorohydrin and/or dichlorohydrin being employed per 100 parts by weight of the polyamidoamine from (a), with ammonia, a primary amine, a polyamine containing 2 to 4 N atoms, a polyether-amine or a polyamidoamine in aqueous solution at below 100 DEG C. The condensates are used as retention aids, flocculants and drainage aids in papermaking.

    CROSSLINKED POLYAMIDOAMINE CONDENSATION PRODUCTS FOR PAPERMAKING
    49.
    发明专利
    CROSSLINKED POLYAMIDOAMINE CONDENSATION PRODUCTS FOR PAPERMAKING 未知

    公开(公告)号：CA1058794A

    公开(公告)日：1979-07-17

    申请号：CA231008

    申请日：1975-07-08

    Applicant: BASF AG

    Inventor： SCHARF EMIL ,  FIKENTSCHER ROLF ,  AUHORN WERNER ,  STREIT WERNER

    IPC: C08G81/00 ,  C08G69/40 ,  D21H17/55 ,  D21H17/56 ,  D21H21/10 ,  C08L71/02 ,  C08L77/06 ,  D21D3/00

    Abstract: Crosslinked water-soluble reaction products for the papermaking industry obtained by reacting (a) 1 part by weight of an ethyleneimine-grafted 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 alkyleneimine units, followed by grafting of from 2 to 8 ethyleneimine units per basic nitrogen atom onto the resulting polyamidoamine, with (b) from 0.3 to 2 parts by weight of a reaction product obtained by reacting a polyalkylene oxide having from 8 to 100 alkylene oxide units with epichlorohydrin in the presence of a Lewis acid, so that from 1.0 to 1.5 moles of epichlorohydrin are present per equivalent of hydroxyl groups in the polyalkylene oxide, at a temperature of from 20.degree. to 100.degree.C in aqueous solution or in a solution in water and a water-soluble organic solvent, the solution having a solids content of from 5 to 50% by weight, the reaction being carried to a point at which the viscosity of an aqueous solution containing 20% of the auxiliary is from 300 to 2,500 centipoises at 20.degree.C.

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