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:
Sep. 08, 1981
Filed:
Dec. 19, 1979
Applicant:
Inventors:
Irving R Schmolka, Grosse Ile, MI (US);
Joseph H Niu, Trenton, MI (US);
Assignee:
BASF Wyandotte Corporation, Wyandotte, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
44 51 ;
Abstract
Unwanted settling in a composition comprising a suspension of fine particles of coal in fuel oil is eliminated or substantially reduced by adding an effective amount of a fatty acid ester of a polyoxypropylene-polyoxyethylene copolymer. The fatty acid has about 12 to 22 carbon atoms in the acyl group. The polyoxyethylene groups and polyoxypropylene groups have a total molecular weight of about 500 to 2000 and contain 0 to about 60 percent by weight polyoxyethylene groups.