公开(公告)号：EP0972110B2

公开(公告)日：2009-03-11

申请号：EP98921399.6

申请日：1998-03-26

Applicant: BASF SE

Inventor： DYLLICK-BRENZINGER, Rainer ,  LORENCAK, Primoz ,  MEIXNER, Hubert ,  BAUMANN, Peter ,  KRÜGER, Ellen ,  STANGE, Andreas ,  RÜBENACKER, Martin

IPC: D21H21/10 ,  D21H21/18 ,  D21H17/29 ,  D21H17/45 ,  D21H17/55 ,  D21H17/56

CPC classification number: D21H21/10 ,  D21H17/29 ,  D21H17/45 ,  D21H17/455 ,  D21H17/55 ,  D21H17/56 ,  D21H21/18 ,  D21H23/765

Abstract: The invention relates to a method for producing high dry-strength paper, pulpboard and cardboard by adding cationic, anionic and/or amphoteric starch as a dry-strength agent to the paper material, dehydrating the paper material to form sheets in the presence of cationic polymers as starch retention agents, and using cationic polymer retention agents to increase retention of dry-strength agents made from cationic, anionic and/or amphoteric starch during the production of paper, pulpboard and cardboard.

公开(公告)号：EP3283201A1

公开(公告)日：2018-02-21

申请号：EP16715562.1

申请日：2016-04-12

Applicant: BASF SE

Inventor： KONRADI, Rupert ,  CEPRAGA, Christina ,  STAUDT, Claudia ,  VON VACANO, Bernhard Ulrich ,  KELLERMEIER, Matthias ,  STENGEL, Peter ,  BAUMANN, Peter ,  MARTY, Laurent ,  KUHN, Jelan ,  SCHAUKSDAT, Sarah-Jane ,  WEGMANN, Ludger ,  BOHRER, Erik

IPC: B01D65/08 ,  B01D69/02 ,  C09D5/00 ,  A01N25/34 ,  A01N37/12 ,  A01N61/00

CPC classification number: B01D67/0088 ,  A01N25/10 ,  A01N25/34 ,  B01D65/08 ,  B01D69/06 ,  B01D69/08 ,  B01D71/28 ,  B01D71/40 ,  B01D71/52 ,  B01D71/80 ,  C08F283/06 ,  C09D5/1668 ,  C09D151/08

Abstract: Process for reducing the fouling of a surface O, wherein an aqueous solution S of at least one polymer P comprising styrene and at least one ester E of (meth)acrylic acid and polyethylene oxide in a molar ratio of 0.05:1 to 50:1 is applied to said surface O.