	US 12,134,701 B2
	Primer coatings for inkjet and liquid electrophotographic printing
Molly Hladik, Cincinnati, OH (US); and Emily Elizabeth Curry, Cincinnati, OH (US)
Assigned to Michelman, Inc., Cincinnati, OH (US)
Appl. No. 17/276,869
Filed by Michelman, Inc., Cincinnati, OH (US)
PCT Filed Jul. 15, 2020, PCT No. PCT/US2020/042061 § 371(c)(1), (2) Date Mar. 17, 2021, PCT Pub. No. WO2021/011606, PCT Pub. Date Jan. 21, 2021.
Claims priority of application No. 101319 (LU), filed on Jul. 18, 2019.
Prior Publication US 2022/0025196 A1, Jan. 27, 2022
Int. Cl. C09D 5/00 (2006.01); C09D 5/02 (2006.01); C09D 11/10 (2014.01); C09D 11/38 (2014.01); C09D 11/54 (2014.01); C09D 133/14 (2006.01); G03G 9/08 (2006.01); G03G 15/16 (2006.01)

CPC C09D 11/10 (2013.01) [C09D 5/002 (2013.01); C09D 5/022 (2013.01); C09D 11/38 (2013.01); C09D 11/54 (2013.01); C09D 133/14 (2013.01); G03G 9/0823 (2013.01); G03G 15/162 (2013.01)]

27 Claims

1. An aqueous primer composition comprising:

a polyvalent metal salt dispersed in an aqueous fluid having a pH of about 7.5 to about 10 and containing a starch dissolved in the aqueous fluid; and

an amine-functionalized copolymer dispersed as an emulsion in the aqueous fluid, the amine-functionalized copolymer having an amine number of about 10 to about 180 mg KOH/g copolymer in the emulsion and a glass transition temperature of about 0° C. to about 50° C.;

wherein the amine-functionalized copolymer comprises a polymerized reaction product of:

one or more first ethylenically unsaturated monomers lacking an amine group; and

one or more second ethylenically unsaturated monomers bearing at least one amine group, the at least one amine group comprising a side chain of the amine-functionalized copolymer.