US 12,071,495 B2
Polymers for metal surface treatment
Marie-Pierre Labeau, Sevres (FR); and Guillaume Gody, Rueil-Malmaison (FR)
Assigned to SPECIALTY OPERATIONS FRANCE, Lyons (FR)
Appl. No. 17/293,543
Filed by SPECIALTY OPERATIONS FRANCE, Lyons (FR)
PCT Filed Nov. 27, 2019, PCT No. PCT/EP2019/082792
§ 371(c)(1), (2) Date May 13, 2021,
PCT Pub. No. WO2020/109413, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 18208625 (EP), filed on Nov. 27, 2018.
Prior Publication US 2022/0002456 A1, Jan. 6, 2022
Int. Cl. C08K 5/13 (2006.01); C08F 220/06 (2006.01); C23C 22/34 (2006.01); C23C 22/73 (2006.01); C23C 22/78 (2006.01); C23C 22/82 (2006.01)
CPC C08F 220/06 (2013.01) [C08K 5/13 (2013.01); C23C 22/34 (2013.01); C23C 22/73 (2013.01); C23C 22/78 (2013.01); C23C 22/82 (2013.01)] 19 Claims
 
1. A polymer P obtained by radical copolymerization of a mixture of:
acrylic acid;
methacrylic acid; and
at least one allylcatechol selected from the group consisting of 4-allylbenzene-1,2-diol; 3-allylbezene-1,2-diol, having the formulae below, and mixtures thereof

OG Complex Work Unit Chemistry