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    PREPARATION OF WATER-SOLUBLE, NITROGEN-CONTAINING CONDENSATES AND THEIR USE IN PAPERMAKING
    11.
    发明专利
    PREPARATION OF WATER-SOLUBLE, NITROGEN-CONTAINING CONDENSATES AND THEIR USE IN PAPERMAKING 未知

    公开(公告)号：CA1196454A

    公开(公告)日：1985-11-12

    申请号：CA410853

    申请日：1982-09-07

    Applicant: BASF AG

    Inventor： HERTEL OTTO ,  LINHART FRIEDRICH ,  SCHARF EMIL

    IPC: C08G69/00 ,  C08G69/48 ,  C08G73/02 ,  D21H17/55 ,  D21H21/10 ,  D21H3/58

    Abstract: O.Z. 0050 /35413 Water-soluble, nitrogencontaining condensates are prepared by reacting a crosslinking 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.degree.C, from 1 to 130 parts by weight of epichlorohydrin and/or dichlorohydrin being empioyed 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.degree.C. The condensates are used as retention aids, flocculants and drainage aids in papermaking.

    12.
    发明专利
    未知

    公开(公告)号：FI66015B

    公开(公告)日：1984-04-30

    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.

    PROCESS FOR SURFACE-SIZING PAPER
    14.
    发明专利
    PROCESS FOR SURFACE-SIZING PAPER 未知

    公开(公告)号：CA1033233A

    公开(公告)日：1978-06-20

    申请号：CA213115

    申请日：1974-11-06

    Applicant: BASF AG

    Inventor： SCHARF EMIL ,  NAARMANN HERBERT ,  REICHEL FRITZ

    IPC: C09J123/02 ,  D21H17/07 ,  D21H17/35 ,  D21H17/43

    Abstract: Process for the manufacture of surface-sized papers by impregnating a paper with a solution containing a water-soluble salt of a random polymer based on alpha -olefins and ethylenically unsaturated acids and a compound of the formula: R1 R-CO-N ANGLE R2 wherein R is alkyl, aryl or a radical of the formula: R1 ANGLE N- R2 and R1 and R2 each independently denotes H, R or a radical of the formula:

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