US 12,303,970 B2
Foundry mix including resorcinol
James T. Schneider, Canton, OH (US); and Frances Trenta, Canton, OH (US)
Assigned to NOVIS WORKS, LLC, Canton, OH (US)
Filed by Novis Works, LLC, Canton, OH (US)
Filed on Jun. 12, 2023, as Appl. No. 18/333,114.
Application 18/333,114 is a division of application No. 17/694,394, filed on Mar. 14, 2022, granted, now 11,712,735.
Application 17/694,394 is a continuation of application No. 16/823,779, filed on Mar. 19, 2020, granted, now 11,305,336, issued on Apr. 19, 2022.
Application 16/823,779 is a continuation of application No. 15/875,554, filed on Jan. 19, 2018, granted, now 10,610,923, issued on Apr. 7, 2020.
Claims priority of provisional application 62/449,157, filed on Jan. 23, 2017.
Prior Publication US 2023/0321717 A1, Oct. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 63/00 (2006.01); B22C 1/20 (2006.01); B22C 1/22 (2006.01); B22C 7/00 (2006.01); C07C 39/10 (2006.01); C08L 63/04 (2006.01)
CPC B22C 1/226 (2013.01) [B22C 1/205 (2013.01); B22C 1/222 (2013.01); B22C 1/2253 (2013.01); B22C 7/00 (2013.01); C07C 39/10 (2013.01); C08L 63/00 (2013.01); C08L 63/04 (2013.01); C08L 2205/05 (2013.01)] 20 Claims
 
1. A foundry binder system comprising:
a first portion that includes an epoxy resin that is present in an amount ranging from 25 to 70 parts by weight and a free radical initiator that is present in an amount ranging from 10 to 40 parts by weight;
a second portion that includes an epoxy novolac resin that is present in an amount ranging from 10 to 40 parts by weight, an acrylate that is present in an amount ranging from 20 to 70 parts by weight, and a polyhydroxy benzene that is present in an amount ranging from 0.5 to 10 parts by weight, wherein the polyhydroxy benzene is one of a resorcinol, a non-functionalized resorcinol compound, and a functionalized resorcinol compound;
wherein said parts by weight are based upon 100 parts of the foundry binder system; and
wherein the first portion and the second portion are stored separately until a foundry mix including aggregate is to be prepared.