US 12,221,559 B2
Water-based pressure sensitive adhesive compositions and methods of making same
Mario De Filippis, Shanghai (CN); Miao Yang, Valbonne (FR); Cathie Seyfried, Shanghai (CN); Zhaohui Qu, Valbonne (FR); Isabelle Uhl, Valbonne (FR); Melinda L. Einsla, Royersford, PA (US); Kalyan Sehanobish, Sanford, MI (US); William B. Griffith, Jr., North Wales, PA (US); and Vinita Yadav, Royersford, PA (US)
Assigned to Rohm and Haas Company, Collegeville, PA (US); and Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 16/493,829
Filed by Rohm and Haas Company, Collegeville, PA (US); and Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Mar. 13, 2017, PCT No. PCT/CN2017/076467
§ 371(c)(1), (2) Date Sep. 13, 2019,
PCT Pub. No. WO2018/165827, PCT Pub. Date Sep. 20, 2018.
Prior Publication US 2020/0079979 A1, Mar. 12, 2020
Int. Cl. C09J 133/08 (2006.01); C08F 220/18 (2006.01); C09J 7/38 (2018.01); C09J 11/06 (2006.01)
CPC C09J 133/08 (2013.01) [C08F 220/1808 (2020.02); C09J 7/385 (2018.01); C09J 11/06 (2013.01); C08F 220/1802 (2020.02); C09J 2301/414 (2020.08); C09J 2423/04 (2013.01); C09J 2433/00 (2013.01)] 18 Claims
 
1. A water-based pressure sensitive adhesive composition, comprising:
(a) an acrylic emulsion comprising polymer particles having a glass transition temperature of less than or equal to −10° C. wherein the polymer particles consist of monomer subunits of acrylic acid, 2-ethylhexyl acrylate, ethyl acrylate, methyl(meth)acrylate and optional styrene;
(b) an optional hydrophobic copolymer polyelectrolyte; and
(c) ethylene acrylic acid emulsion.