US 12,269,966 B2
Aqueous-based release coatings and article therefrom
Clinton G. Wiener, Stillwater, MN (US); Mahfuza B. Ali, Mendota Heights, MN (US); Maria A. Appeaning, St. Paul, MN (US); Ibrahim A. El Hedok, Concord, NC (US); Phillip H. Henna, Cottage Grove, MN (US); and Ramesh C. Kumar, Woodbury, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/614,750
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Jun. 15, 2020, PCT No. PCT/IB2020/055578
§ 371(c)(1), (2) Date Nov. 29, 2021,
PCT Pub. No. WO2020/261037, PCT Pub. Date Dec. 30, 2020.
Claims priority of provisional application 62/866,791, filed on Jun. 26, 2019.
Prior Publication US 2022/0228005 A1, Jul. 21, 2022
Int. Cl. C09D 133/16 (2006.01); C08F 20/34 (2006.01); C08J 7/04 (2020.01); C09D 5/02 (2006.01); C09D 7/45 (2018.01); C09D 7/63 (2018.01)
CPC C09D 5/022 (2013.01) [C08F 20/34 (2013.01); C08J 7/0427 (2020.01); C09D 7/45 (2018.01); C09D 7/63 (2018.01); C09D 133/16 (2013.01); C08J 2323/06 (2013.01); C08J 2323/08 (2013.01); C08J 2323/12 (2013.01); C08J 2331/04 (2013.01); C08J 2433/16 (2013.01)] 11 Claims
 
1. A release coated article comprising a substrate and a release coating disposed thereon, wherein the substrate is a polymeric substrate and the release coating, derived from an aqueous-based coating composition, comprises a polymer having at least 60 weight % of interpolymerized divalent monomer units represented by the segment according to formula I

OG Complex Work Unit Chemistry
wherein R3 is H or CH3, L is an alkylene group comprising 1-4 carbon atoms, R1 and R2 are independently selected from an alkyl group comprising 1 to 3 carbon atoms, n is an integer from 11 to 21, and A is a counter anion, wherein the polymer comprises at least 50 segments according to formula I.