发明名称 |
A PROCESS FOR THE PRODUCTION OF PAPER |
摘要 |
The invention relates to a process for the production of paper from an aqueous suspen-sion containing cellulosic fibres, and optional fillers, which comprises separately adding to the suspen-sion a cationic organic polymer having one or more aromatic groups and an anionic polymer having one or more aromatic groups, the anionic polymer being selected from step-growth polymers, polysaccharides and naturally occurring aromatic polymers and modifications thereof, forming and draining the suspension on a wire, with the proviso that if the anionic polymer is a step-growth polymer it is not an anionic melamine-sulphonic acid condensation polymer. The invention further relates to a process for the production of paper from an aqueous suspen-sion containing cellulosic fibres, and optional fillers, which comprises separately adding to the suspen-sion a cationic organic polymer having one or more aromatic groups and an anionic polymer having one or more aromatic groups, forming and draining the suspension on a wire, with the proviso that the anionic polymer is not an anionic polystyrene sulphonate or anionic melamine-sulphonic acid condensation polymer. |
申请公布号 |
WO0212626(A1) |
申请公布日期 |
2002.02.14 |
申请号 |
WO2001SE01701 |
申请日期 |
2001.08.02 |
申请人 |
AKZO NOBEL N.V.;EKA CHEMICALS AB;FROELICH, STEN;SOLHAGE, FREDRIK;LINDGREN, ERIK;JOHANSSON-VESTIN, HANS |
发明人 |
FROELICH, STEN;SOLHAGE, FREDRIK;LINDGREN, ERIK;JOHANSSON-VESTIN, HANS |
分类号 |
D21H23/76;D21C3/00;D21H17/14;D21H17/17;D21H17/21;D21H17/24;D21H17/29;D21H17/42;D21H17/45;D21H17/47;D21H17/58;D21H19/10;D21H21/10;D21H21/16 |
主分类号 |
D21H23/76 |
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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