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. 18, 1994
Filed:
Dec. 17, 1991
Applicant:
Inventors:
Glenn N Robinson, Naperville, IL (US);
Gregory E McWright, Park City, IL (US);
Assignee:
Angus Chemical Company, Buffalo Grove, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C09C / ; B01F / ; B01F / ; B01F / ; B01F / ;
U.S. Cl.
CPC ...
106506 ; 106311 ; 106413 ; 106429 ; 106445 ; 106447 ; 106448 ; 106460 ; 106465 ; 106471 ; 106476 ; 106487 ; 106491 ; 106499 ; 106400 ; 106401 ; 106402 ; 252351 ; 252357 ; 2523635 ;
Abstract
A method for dispersing a comminuted solid in an aqueous medium is described. An aqueous dispersing agent is added to an aqueous medium in an amount sufficient to disperse the comminuted solid in the aqueous medium. The aqueous dispersing agent includes from about 10 wt. % to about 55 wt. % of an amine compound selected from the group consisting of alkanolamines, triethylamine and morpholine, from about 15 wt. % to about 35 wt. % of a base selected from the group consisting of sodium hydroxide and potassium hydroxide, and from about 0.1 wt. % to about 15 wt. % chelating agent.