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:
Jun. 23, 1987
Filed:
Mar. 28, 1986
Applicant:
Inventors:
Heinz Riemer, Bottrop, DE;
Werner Friedrich, Herten, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
44 51 ; 44 66 ; 44 70 ; 44 71 ; 2604045 ;
Abstract
A method of reducing the viscosity of an aqueous coal slurry, which comprises adding a viscosity-reducing effective amount of a partial ester of particular aliphatic, cycloaliphatic or aromatic polycarboxylic acids with particular phenyl polyglycol ethers substituted by alkyl or alkylaryl groups having the formula I ##STR1## is disclosed, along with aqueous coal slurries containing the viscosity-reducing compound.