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:
May. 25, 2010
Filed:
Jul. 05, 2007
Applicants:
Xianping Wang, Dublin, OH (US);
H. Randall Shriver, Columbus, OH (US);
Jorg Kroker, Powell, OH (US);
Inventors:
Xianping Wang, Dublin, OH (US);
H. Randall Shriver, Columbus, OH (US);
Jorg Kroker, Powell, OH (US);
Assignee:
Ashland Licensing and Intellectual Property, LLC, Dublin, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C 3/00 (2006.01); B22C 1/22 (2006.01); C08K 5/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to a process for making foundry shapes (e.g. cores and molds) using epoxy-acrylate cold-box binders containing an oxidizing agent and elevated levels of an organofunctional silane, which are cured in the presence of sulfur dioxide, and to a process for casting metals using the foundry shapes. The metal parts have fewer casting defects because the foundry shapes made with the binder are more resistant to erosion.