Thickening agents for aqueous systems are disclosed comprising water-soluble addition polymers of acrylamide and an N-substituted acrylamide in which the substituent is a hydrocarbyl group of at least 6 carbon atoms, or such a group attached to the nitrogen atom via a polyoxyalkylene chain. Preferred substituents are alkyl groups containing 6-36 carbon atoms. The polymers are useful thickening agents for aqueous systems, particularly multiphase systems such as aqueous emulsion polymers and aqueous pigment dispersions, and especially aqueous emulsion paints and aqueous printing inks.
本发明公开了用于
水性体系的
增稠剂,包括
丙烯酰胺和 N-取代
丙烯酰胺的
水溶性加成聚合物,其中取代基为至少 6 个碳原子的烃基,或通过聚氧亚烷基链连接到氮原子的烃基。首选的取代基是含有 6-36 个碳原子的烷基。这种聚合物是
水性体系的有用
增稠剂,特别是多相体系,如
水性乳液聚合物和
水性
颜料分散体,尤其是
水性乳胶漆和
水性印刷油墨。