US 12,234,370 B2
Epoxy compositions
Nicolas C. Remy, De Soto, MO (US); John O. Kloepper, St. Charles, MO (US); and Tom A. Calzone, Chesterfield, MO (US)
Assigned to Carboline International Corporation, St. Louis, MO (US)
Filed by CARBOLINE INTERNATIONAL CORPORATION, St. Louis, MO (US)
Filed on Feb. 15, 2021, as Appl. No. 17/175,946.
Claims priority of provisional application 63/047,325, filed on Jul. 2, 2020.
Prior Publication US 2022/0002578 A1, Jan. 6, 2022
Int. Cl. C09D 163/04 (2006.01); C08L 63/04 (2006.01)
CPC C09D 163/04 (2013.01) [C08L 63/04 (2013.01)] 25 Claims
 
1. An epoxy composition comprising:
a polyepoxy aniline in an amount of 16 wt % to 26 wt % based upon the total weight of the epoxy composition,
a rheology modifier,
a filler in an amount of 45 wt % to 60 wt % based upon the total weight of the epoxy composition, and
a polyamine hardener comprising a cyclic hydrocarbon-containing polyamine,
wherein the epoxy composition, when cured under ambient conditions, has a dry glass transition temperature of 80° C. or more.