Patent ID: 8859684

Claim:
A stabilizer composition for use in increasing Open Time of an aqueous coating composition comprising an AB type polymer, wherein B comprises a water-soluble/water dispersible oligomer or polymer and wherein A, covalently connected to B, comprises a structure that has the following formula: wherein R comprises a C 1 to C 30 hydrocarbon, which is linear or branched, aliphatic or aromatic, or combinations thereof; R 1 comprises H, CH 3 , or C 2 H 5 ; R 2 comprises CH 2 O, CO 2 , CONH, or CH 2 and wherein R 2 can be the same or different; R 3 comprises H or OH; n is an integer from 2 to 100; and m is either 0 or 1; wherein “A” is made from a monomer selected from the group consisting of polyphenoxy glycidyl ether, methylphenyl glycidyl ether, ethylhexylglycidyl ether, phenyl glycidyl ether, and alkali glycidyl ether, and wherein “B” comprises polyacetalpolyether (PAPE); and wherein the addition of at least 0.5 wt % of the AB type polymer to an aqueous coating composition increases the Open Time of the aqueous coating composition by at least 10% Open Time, as measured by at least one of Open Time X-test A&D and Open Time X-test RC.