US 11,673,976 B2
Method for making water-dispersible and water-dispersed polymers
Joseph D. DeSousa, Pittsburgh, PA (US); Arthur Riazzi, Harrison City, PA (US); Benjamin J. Webster, Pittsburgh, PA (US); Robert M. O'Brien, Monongahela, PA (US); Kailas B. Sawant, Mars, PA (US); Richard H. Evans, Wexford, PA (US); and Sebastien Gibanel, Givry (FR)
Assigned to SWIMC LLC, Cleveland, OH (US)
Appl. No. 16/771,798
Filed by THE SHERWIN-WILLIAMS COMPANY, Cleveland, OH (US)
PCT Filed Dec. 11, 2018, PCT No. PCT/US2018/064981
§ 371(c)(1), (2) Date Jun. 11, 2020,
PCT Pub. No. WO2019/118482, PCT Pub. Date Jun. 20, 2019.
Claims priority of provisional application 62/597,206, filed on Dec. 11, 2017.
Prior Publication US 2021/0071011 A1, Mar. 11, 2021
Int. Cl. C08F 2/28 (2006.01); C08F 2/22 (2006.01); C08F 8/44 (2006.01); C09D 5/02 (2006.01); C09D 133/12 (2006.01); C09D 151/00 (2006.01)
CPC C08F 2/28 (2013.01) [C08F 2/22 (2013.01); C08F 8/44 (2013.01); C09D 5/022 (2013.01); C09D 133/12 (2013.01); C09D 151/003 (2013.01); C08F 2810/50 (2013.01)] 18 Claims
 
1. A method for making a water-dispersible or water-dispersed polymer, comprising the steps of:
a) reacting (i) an unsaturated monomer containing one or more cyclic carbonate groups, or (ii) an unsaturated or saturated oligomer or polymer containing a plurality of cyclic carbonate groups, with a tertiary amine in the presence of an acid, or with an acid in the presence of a tertiary amine, or in the presence of an acid and a tertiary amine, to provide a water-dispersible or water-dispersed monomer, oligomer or polymer; and
b1) when step a) provides a water-dispersible or water-dispersed monomer or oligomer, reacting such monomer or oligomer with one or more monomers in the presence of an initiator to provide a water-dispersible or water-dispersed polymer; and
b2) when step a) provides a water-dispersible or water-dispersed polymer, optionally using such polymer to support emulsion polymerization of one or more unsaturated monomers in the presence of an initiator to provide a water-dispersible or water-dispersed further polymer
wherein step a), step b1) or step b2) provides a latex polymer formed using a polymeric surfactant, and the unsaturated monomer containing one or more cyclic carbonate groups and one or more other unsaturated monomers are emulsion polymerized in the presence of the polymeric surfactant.