US 12,331,224 B2
Two-part epoxy compositions for adherent coatings of storage articles
Matthew H. Striewing, Cleveland, OH (US)
Assigned to SWIMC LLC, Cleveland, OH (US)
Appl. No. 17/778,639
Filed by SWIMC LLC, Cleveland, OH (US)
PCT Filed Nov. 20, 2020, PCT No. PCT/US2020/061454
§ 371(c)(1), (2) Date May 20, 2022,
PCT Pub. No. WO2021/102229, PCT Pub. Date May 27, 2021.
Claims priority of provisional application 62/938,541, filed on Nov. 21, 2019.
Prior Publication US 2022/0411679 A1, Dec. 29, 2022
Int. Cl. C09J 163/10 (2006.01); C09J 7/10 (2018.01)
CPC C09J 163/10 (2013.01) [C09J 7/10 (2018.01); C09J 2301/312 (2020.08)] 9 Claims
OG exemplary drawing
 
1. A two-part epoxy composition comprising:
a first liquid comprising a polyepoxide of Formula (I):

OG Complex Work Unit Chemistry
wherein the polyepoxide of Formula (I) comprises tetramethyl bisphenol F diglycidyl ether;
wherein the polyepoxide of Formula (I) has an estrogenic agonist activity less than that of bisphenol S;
wherein the polyepoxide of Formula (I) has a viscosity of about 5,000 poise to about 15,000 poise at 25° C.; and
a second liquid comprising a curing agent configured to react with the polyepoxide under 25° C.;
wherein the curing agent comprises triethylenetetramine (TETA).