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    USE OF NITROGEN CONTAINING CONDENSATION PRODUCTS AS RETENTION AGENT, FLOCCULATING AGENT AND DRAINAGE ACCELERATOR IN PAPER PRODUCTION
    33.
    发明专利
    USE OF NITROGEN CONTAINING CONDENSATION PRODUCTS AS RETENTION AGENT, FLOCCULATING AGENT AND DRAINAGE ACCELERATOR IN PAPER PRODUCTION 未知

    公开(公告)号：DE3064043D1

    公开(公告)日：1983-08-11

    申请号：DE3064043

    申请日：1980-08-14

    Applicant: BASF AG

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

    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.

    36.
    发明专利
    未知

    公开(公告)号：DE2113096A1

    公开(公告)日：1972-09-21

    申请号：DE2113096

    申请日：1971-03-18

    Applicant: BASF AG

    Inventor： ENDRES HORST DR ,  HERTEL OTTO DR ,  MILLER FRANZ-FRIEDRICH DR

    IPC: C14C3/18 ,  C14C3/20 ,  C14C

    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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