发明名称 |
Production of paper, board and cardboard. |
摘要 |
Paper, board and cardboard are produced by draining paper stock containing interfering substances in the presence of fixing agents by a process in which the fixing agents used are reaction products which are obtainable by reacting amino- and/or ammonium-containing polymers selected from the group consisting of thepolymers containing vinylamine unitspolyalkylene polyaminespolyamidoaminesethyleneimine-grafted polyamidoamines which may be crosslinked,polydiallyldimethylammonium chloridespolymers containing dialkylaminoalkylacrylamide units or dialkylaminoalkylmethacrylamide units andpolyallylamines anddicyandiamide and formaldehyde condensateswith reactive sizes for paper in a weight ratio of polymer to reactive size of from 15,000:1 to 1:1, and the reaction products thus obtainable are used as fixing agents for water-soluble and for water-insoluble interfering substances in the production of paper, board and cardboard from paper stocks containing interfering substances. |
申请公布号 |
ZA9803757(B) |
申请公布日期 |
1999.11.15 |
申请号 |
ZA19980003757 |
申请日期 |
1998.05.05 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
ROLAND ETTL;HUBERT MEIXNER;ANTON ESSER;RAINER SCHOLZ NORBERT MAHR;ULRICH STEUERLE;MATTHIAS HOENE KLAUS LORENZ |
分类号 |
D21H21/06;C08F8/32;C08F8/44;C08G73/02;D21H17/08;D21H17/14;D21H17/17;D21H17/37;D21H17/38;D21H17/45;D21H17/49;D21H17/54;D21H17/55;D21H17/56;D21H21/10;D21H21/16 |
主分类号 |
D21H21/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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