公开(公告)号：AT437905T

公开(公告)日：2009-08-15

申请号：AT03010972

申请日：2003-05-16

Applicant: BASF SE

Inventor： MICHL KATHRIN ,  GERST MATTHIAS ,  LAUBENDER MATTHIAS DR ,  FAUL DIETER DR ,  RAUBENHEIMER HANS-JUERGEN

IPC: C08F2/16 ,  C08F220/04 ,  C08F2/10 ,  C08F2/44 ,  C08F220/02 ,  C08F220/34 ,  C08F222/02 ,  C08F222/22 ,  C08F246/00

Abstract: An ethylenically unsaturated monocarboxylic acid and/or dicarboxylic acid (monomer A) (in wt.%) (50-99.5), an ethylenically unsaturated compound chosen from specific esters (0.5-50) (monomer B), and an optional monomer (monomer C) (up to 20) are polymerized in aqueous medium in the presence of foam inhibitor(s), to prepare an aqueous copolymer solution. An ethylenically unsaturated monocarboxylic acid and/or dicarboxylic acid (monomer A) (in wt.%) (50-99.5), ethylenically unsaturated compound (0.5-50) (monomer B), and an optional monomer (monomer C) (up to 20), are polymerized in an aqueous medium in the presence of at least one foam inhibitor, to prepare an aqueous copolymer solution. The monomer (B) is chosen from esters of ethylenically unsaturated monocarboxylic acids and monoesters and diesters of ethylenically unsaturated dicarboxylic acids with an amine containing at least one hydroxyl group.

公开(公告)号：DE50311745D1

公开(公告)日：2009-09-10

申请号：DE50311745

申请日：2003-05-16

Applicant: BASF SE

Inventor： MICHL KATHRIN DR ,  GERST MATTHIAS DR ,  LAUBENDER MATTHIAS DR ,  FAUL DIETER DR ,  RAUBENHEIMER HANS-JUERGEN

IPC: C08F2/16 ,  C08F220/04 ,  C08F2/10 ,  C08F2/44 ,  C08F220/02 ,  C08F220/34 ,  C08F222/02 ,  C08F222/22 ,  C08F246/00

Abstract: An ethylenically unsaturated monocarboxylic acid and/or dicarboxylic acid (monomer A) (in wt.%) (50-99.5), an ethylenically unsaturated compound chosen from specific esters (0.5-50) (monomer B), and an optional monomer (monomer C) (up to 20) are polymerized in aqueous medium in the presence of foam inhibitor(s), to prepare an aqueous copolymer solution. An ethylenically unsaturated monocarboxylic acid and/or dicarboxylic acid (monomer A) (in wt.%) (50-99.5), ethylenically unsaturated compound (0.5-50) (monomer B), and an optional monomer (monomer C) (up to 20), are polymerized in an aqueous medium in the presence of at least one foam inhibitor, to prepare an aqueous copolymer solution. The monomer (B) is chosen from esters of ethylenically unsaturated monocarboxylic acids and monoesters and diesters of ethylenically unsaturated dicarboxylic acids with an amine containing at least one hydroxyl group.