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.

Date of Patent:
Feb. 24, 2015

Filed:

Aug. 16, 2012
Applicants:

Donald E. Kiely, Missoula, MT (US);

Kirk R. Hash, Drummond, MT (US);

Kylie Kramer-presta, Missoula, MT (US);

Tyler N. Smith, Missoula, MT (US);

Inventors:

Donald E. Kiely, Missoula, MT (US);

Kirk R. Hash, Drummond, MT (US);

Kylie Kramer-Presta, Missoula, MT (US);

Tyler N. Smith, Missoula, MT (US);

Assignee:

The University of Montana, Missoula, MT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 3/18 (2006.01); C23F 11/12 (2006.01); C04B 24/06 (2006.01); C04B 103/61 (2006.01);
U.S. Cl.
CPC ...
C23F 11/126 (2013.01); C09K 3/185 (2013.01); C04B 24/06 (2013.01); C04B 2103/61 (2013.01);
Abstract

Compositions which inhibit corrosion and alter the physical properties of concrete (admixtures) are prepared from salt mixtures of hydroxycarboxylic acids, carboxylic acids, and nitric acid. The salt mixtures are prepared by neutralizing acid product mixtures from the oxidation of polyols using nitric acid and oxygen as the oxidizing agents. Nitric acid is removed from the hydroxycarboxylic acids by evaporation and diffusion dialysis.


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