专利名称：FINE-PARTICULATE POLYMER DISPERSIONS
COMPRISING STARCH
发明人：BROCKMEYER, ANDREAS,LEMAN,
TITUS,ETTL, ROLAND
申请号：EP07857375.5申请日：20071211公开号：EP2121781A1公开日：20091125
摘要：The invention relates to fine-particulate polymer dispersions comprising starch,obtained by radically initiated emulsion copolymerization of ethylenically unsaturatedmonomers in the presence of a redox initiator and an enzymatically degraded starch,wherein the enzymatic degradation of starch is stopped by adding at least one acidcomprising a phosphorus atom to the reaction mixture. According to the invention, atleast one acid comprising a phosphorus atom is used in order to stop the enzymaticdegradation of starch and the fine-particulate polymer dispersions comprising starch ofemulsion polymers are used as sizing agents for paper and paper products, particularlyas surface sizing agents.
申请人：BASF SE
地址：67056 Ludwigshafen DE
国籍：DE
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