BARDMAN, James Keith,DEROCHER, Jonathan,HEJL, Andrew,VANDYK, Anthony K.,WANG, Lin,YEUNG, Kimy
申请号:
WO2018US19663
公开号:
WO2018182892(A1)
申请日:
2018.02.26
申请国别(地区):
世界知识产权组织国际局
年份:
2018
代理人:
摘要:
The present invention relates to a process comprising the step of contacting an aqueous dispersion of swelled polymer particles with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L. The swelled polymer particles arise from neutralization of alkali swellable polymer particles having a high acid core content and a low Tg shell. The composition arising from the process of the present invention is useful for improving open time, especially for low VOC coatings applications.