The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2004
Filed:
Jan. 15, 2003
Applicant:
Inventor:
Jimmy Pingao Chen, Prospect, KY (US);
Assignee:
Borden Chemical Inc., Columbus, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 1/22 ;
U.S. Cl.
CPC ...
B22C 1/22 ;
Abstract
Binder compositions of the present invention are useful in refractory and foundry applications. The compositions include an aggregate, a liquid resole resin, and a magnesium hardening agent. The compositions are workable and exhibit high compressive strengths in a short period of time. Additionally, the compositions have a low free phenol content and require a reduced resin content as compared to currently known compositions. The compositions reduce the cost to produce useful binders by eliminating the requirement for ester curing in addition to requiring reduced amounts of resin to obtain adequate compressive strength.