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:
Oct. 24, 2006
Filed:
Sep. 18, 2003
Applicant:
Ken K. Chang, Dublin, OH (US);
Inventor:
Ken K. Chang, Dublin, OH (US);
Assignee:
Ashland Licensing and Intellectual Property LLC, Dublin, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to a heat-cured furan foundry binder system comprising a furan binder and a furan monomer or oligomer containing at least two terminal hydroxymethyl groups. The binders are particularly useful as warm-box binders, because they cure faster and foundry shapes (typically cores and molds) made with the binders exhibit higher tensile strengths than those made with conventional heat-cured furan binders.