Andrew N Simonson

US Patent:

20100319874, Dec 23, 2010

Filed:

Nov 14, 2008

Appl. No.:

12/742551

Inventors:

Gerard R. Thiel - Dysart IA, US
Shoshanna R. Coon - Shell Rock IA, US
Mitchell Patterson - Cedar Falls IA, US
Andrew Simonson - De Witt IA, US
Ian Williams - Cedar Rapids IA, US
Ryan Jones - Grundy Center IA, US

Assignee:

UNIVERSITY OF NORTHERN IOWA RESEARCH FOUNDATION - Cedar Falls IA

International Classification:

B22C 9/00
C08G 18/00
B22C 1/22

US Classification:

164526, 527301, 523139

Abstract:

A bio-based binder system for use in preparing foundry molds. In a preferred embodiment, the system includes the use of a) a polyermizable hydroxyl-containing component comprising a saccharide, b) an isocyanate component, and c) a catalyst, and preferably amine catalyst, component adapted to catalyze the polymerization of a) and b), in the presence of a foundry aggregate such as sand. The system can be used in any suitable manner, including in either a cold box process or no bake process as described herein.

US Patent:

20160311013, Oct 27, 2016

Filed:

Jun 30, 2016

Appl. No.:

15/199312

Inventors:

- Cedar Falls IA, US
Shoshanna R. Coon - Shell Rock IA, US
Mitchell Patterson - Cedar Falls IA, US
Andrew Simonson - De Witt IA, US
Ian Williams - Cedar Rapids IA, US
Ryan Jones - Grundy Center IA, US

International Classification:

B22C 1/26
C09J 175/04
B22C 1/22
C08G 18/64

Abstract:

A bio-based binder system for use in preparing foundry molds. In a preferred embodiment, the system includes the use of a) a polyermizable hydroxyl-containing component comprising a saccharide, b) an isocyanate component, and c) a catalyst, and preferably amine catalyst, component adapted to catalyze the polymerization of a) and b), in the presence of a foundry aggregate such as sand. The system can be used in any suitable manner, including in either a cold box process or no bake process as described herein.