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:
Jan. 05, 2016
Filed:
Dec. 08, 2010
Applicant:
Sankar Bhattacharja, Naperville, IL (US);
Inventor:
Sankar Bhattacharja, Naperville, IL (US);
Assignee:
Nalco Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 1/08 (2006.01); B22C 9/04 (2006.01); C08L 97/02 (2006.01);
U.S. Cl.
CPC ...
B22C 1/08 (2013.01); B22C 9/04 (2013.01); C08L 97/02 (2013.01); C08L 2205/02 (2013.01);
Abstract
A composition for use in investment casting shells and a method of making the composition is disclosed. The composition includes an engineered binder and a refractory flour. The engineered binder comprises a siliceous material and at least one organic component selected from: at least one type of wood pulp; at least one species of cellulose fiber; and combinations thereof. A particular benefit of the investment shell composition is simultaneously increased permeability and load bearing capacity.