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1. (WO2018182892) PREPARATION OF A COATINGS FORMULATION WITH ALKALI SWELLABLE POLYMER PARTICLES

Pub. No.:    WO/2018/182892    International Application No.:    PCT/US2018/019663
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Feb 27 00:59:59 CET 2018
IPC: C08J 3/205
C08J 3/00
C09D 5/02
C09D 7/43
C09D 7/65
C09D 7/40
C09D 133/04
C09D 151/00
Applicants: DOW GLOBAL TECHNOLOGIES LLC
ROHM AND HAAS COMPANY
Inventors: BARDMAN, James Keith
DEROCHER, Jonathan
HEJL, Andrew
VANDYK, Anthony K.
WANG, Lin
YEUNG, Kimy
Title: PREPARATION OF A COATINGS FORMULATION WITH ALKALI SWELLABLE POLYMER PARTICLES
Abstract:
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.