Patent ID: 11970629
Assignee: DOW GLOBAL TECHNOLOGIES LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. An aqueous dispersion of multistage polymer particles comprising: an oligomer, a polymer A, and optionally a polymer B; wherein the oligomer has a weight average molecular weight of from 1,000 to 50,000 g/mol and comprises by weight based on the weight of the oligomer:
from 50% to 95% structural units of an ethylenically unsaturated nonionic monomer, and
from 5% to 50% structural units of an alkoxylated (meth)acrylate having the structure of formula (I),, wherein R1 is H or CH3, R2 is H or a C1-C6 alkyl group, R3 and R4 are each independently H or CH3, m is an integer of from 4 to 50, and n is an integer of from 0 to 6;
wherein the multistage polymer particles comprise more than 1% and less than or equal to 30% of the oligomer, by weight based on the weight of the multistage polymer particles.