USE OF POLYACRYLIC ACIDS AS GRINDING AIDS FOR CALCIUM CARBONATE
摘要
The invention relates to the use of polyacrylic acids which contain organic terminal groups containing sulphur, comprising at least two carbon atoms, having an average molecular weight Mw of 5 000 - 30 000 g/mol and which are at least partially neutralised by a base which is selected from the group of alkali hydroxides and ammonia as auxiliary agents for wet grinding of calcium carbonate. The invention also relates to fine particle aqueous suspensions of calcium carbonate which are produced by wet grinding of calcium carbonate in the presence of said polyacrylic acids.
申请公布号
WO2004080899(A1)
申请公布日期
2004.09.23
申请号
WO2004EP02242
申请日期
2004.03.05
申请人
BASF AKTIENGESELLSCHAFT;MICHL, KATHRIN;GOTSCHE, MICHAEL;RIEGER, JENS;SCHMIDT, KATI
发明人
MICHL, KATHRIN;GOTSCHE, MICHAEL;RIEGER, JENS;SCHMIDT, KATI