公开(公告)号：WO2006058732A2

公开(公告)日：2006-06-08

申请号：PCT/EP2005012796

申请日：2005-12-01

Applicant: BASF AG ,  KOCH OLIVER ,  BLUM RAINER ,  VAN DIJK RON

Inventor： KOCH OLIVER ,  BLUM RAINER ,  VAN DIJK RON

IPC: D21H21/10

CPC classification number: D21H23/04 ,  D21H17/33 ,  D21H17/375 ,  D21H17/455 ,  D21H21/10

Abstract: The invention relates to a method for producing paper with a high substance weight. According to said method, a paper material is dewatered on a screen in the presence of a combination of at least two polymers that act as a retention and dewatering agent system, forming sheets, which are then dried. The sheet formation takes place without the use of fine-particled inorganic flocculants and (a) at least one polymer containing amino groups and (b) at least one branched cationic polyacrylamide are used as the retention and dewatering agent.

Abstract translation: 一种用于通过在至少两个聚合物作为助留助滤剂系统与纸张形成的组合的存在下在屏幕上排干纸料生产具有高基重的纸并干燥所述片材，其中，一个执行在没有细碎无机絮凝剂的片材形成和使用如保留方法 - 和脱水剂（a）至少一个氨基的聚合物和（b）至少一种支链阳离子聚丙烯酰胺基的。

公开(公告)号：CA2591299C

公开(公告)日：2014-10-07

申请号：CA2591299

申请日：2005-12-01

Applicant: BASF AG

Inventor： KOCH OLIVER ,  BLUM RAINER ,  VAN DIJK RON

IPC: D21H21/10 ,  D21H17/33 ,  D21H17/37 ,  D21H17/45 ,  D21H23/04

Abstract: The invention relates to a process for producing paper sheets having a basis weight of at least 300 g/m2, said process comprising draining a paper pulp comprising waste paper on a wire, forming of the sheets and drying the sheets, wherein the draining of the paper pulp on the wire and the forming the sheets is carried out in the presence of a retention and drainage aid system which is a combination of at least two polymers as sole retention and drainage aids and which consists of: component (a): at least one amino-containing polymer, wherein the amino containing polymer is a polyethylenimine or a modified polyethylenimide obtained by reacting a polyamidoamine compound with a polyalkylene oxide derivative whose terminal hydroxyl groups have been reacted with epichlorohydrin, and component (b): at least one cationic polyacrylamide consisting of either at least one branched cationic polyacrylamide having an ionic regain greater than 20% or at least one branched cationic polyacrylamide having an ionic regain greater than 20% in combination with a linear polyacrylamide.

公开(公告)号：CA2591299A1

公开(公告)日：2006-06-08

申请号：CA2591299

申请日：2005-12-01

Applicant: BASF AG

Inventor： BLUM RAINER ,  VAN DIJK RON ,  KOCH OLIVER

IPC: D21H21/10 ,  D21H17/33 ,  D21H17/37 ,  D21H17/45 ,  D21H23/04

Abstract: A process for producing paper of high basis weight by draining a paper pulp on a wire in the presence of a combination of at least two polymers as a retention and drainage aid system, forming sheets, and drying the sheets, which comprises forming the sheets in the absence of finely divided inorganic flocculants and using as retention and drainage aids (a) at least one amino-containing polymer and (b) at least one branched cationic polyacrylamide.