US 11,667,809 B2
Adhesion promoters and compositions for containers and other articles
Sebastien Gibanel, Givry (FR); Benjamin Campagne, Montbellet (FR); and Marie Braillon-Girard, Tournus (FR)
Assigned to SWIMC LLC, Cleveland, OH (US)
Appl. No. 16/640,707
Filed by SWIMC LLC, Cleveland, OH (US)
PCT Filed Aug. 24, 2018, PCT No. PCT/US2018/047870
§ 371(c)(1), (2) Date Feb. 20, 2020,
PCT Pub. No. WO2019/040823, PCT Pub. Date Feb. 28, 2019.
Claims priority of provisional application 62/550,071, filed on Aug. 25, 2017.
Prior Publication US 2020/0354605 A1, Nov. 12, 2020
Int. Cl. B32B 1/02 (2006.01); B32B 1/08 (2006.01); B32B 27/18 (2006.01); C09D 7/60 (2018.01); C09D 7/63 (2018.01); C09D 7/65 (2018.01); B32B 15/08 (2006.01); C09D 167/00 (2006.01); C08G 18/80 (2006.01); C08K 5/00 (2006.01); C08K 5/42 (2006.01); C08K 5/5313 (2006.01); C08K 5/5317 (2006.01); C09D 151/00 (2006.01); C09D 165/02 (2006.01); C09J 163/04 (2006.01)
CPC C09D 167/00 (2013.01) [B32B 1/02 (2013.01); B32B 1/08 (2013.01); B32B 15/08 (2013.01); B32B 27/18 (2013.01); C08G 18/80 (2013.01); C08K 5/0025 (2013.01); C08K 5/42 (2013.01); C08K 5/5313 (2013.01); C08K 5/5317 (2013.01); C09D 7/60 (2018.01); C09D 7/63 (2018.01); C09D 7/65 (2018.01); C09D 151/003 (2013.01); C09D 165/02 (2013.01); C09J 163/04 (2013.01); C08G 2390/40 (2013.01); C09J 2463/00 (2013.01)] 32 Claims
 
14. A coated article, comprising a substrate having thereon a cured layer of a coating composition comprising:
a binder polymer; and
an aromatic adhesion promoter, wherein the aromatic adhesion promoter is the reaction product of an aromatic diepoxide and a sulfur-based or phosphorus-based acid, the reaction product has a number average molecular weight of less than 7,000, the coating composition is substantially free of each of mobile or bound bisphenol A, bisphenol F, bisphenol S, and epoxides thereof, and wherein the aromatic diepoxide is a cashew nut shell liquid diepoxy.
 
15. The coated article of claim 14, wherein the substrate is a two-piece aluminum or steel food or beverage can, and the cured layer is on an exterior surface, an interior surface, or both.