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:
Dec. 17, 1996
Filed:
Apr. 11, 1994
Applicant:
Inventors:
Fortunato Villamagna, Slatington, PA (US);
Melvin A McNicol, Quebec, CA;
Curtis P Link, Tamaqua, PA (US);
Assignee:
ICI Explosives USA Inc., Tamaqua, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F42D / ;
U.S. Cl.
CPC ...
102333 ; 102324 ; 166135 ;
Abstract
A stemming agent is provided comprising: A) a neutralized acrylic acid polymer; B) a neutralized mixture of sodium silicate and a silicon oxide-containing material such as sand, clay, stones, volcanic ash, or the like; or C) a mixture of materials A) and B). The stemming agents produced are low cost, easily made, and preferably are free of nitrate salts. Accordingly, the use of these preferred stemming agents eliminates the contamination of ground water by nitrate salts. The stemming agents of the invention may be used in either bulk-delivered or packaged applications.