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:
May. 17, 1988
Filed:
Aug. 21, 1986
Applicant:
Inventors:
Arpad Savoly, Martinsville, NJ (US);
Jose L Villa, Bridgewater, NJ (US);
Reuben H Grinstein, Denville, NJ (US);
Solomon J Nachfolger, Monsey, NY (US);
Assignee:
Diamond Shamrock Chemicals Company, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
44 51 ; 44 62 ; 44 70 ;
Abstract
The present invention relates to coal water slurries containing about 0.01% to 1% by weight of a water soluble terpolymer of ethylacrylate/methacrylic acid/ unsaturated carboxylic acid ester of an ethoxylated or nonethoxylated alcohol or an ethoxylated carboxylic acid. The water soluble terpolymer functions as a stablizing agent for the coal water slurry to prevent sedimentation and provide ease of pumping the coal water slurry. The water soluble terpolymer may be used alone or in combination with anionic or nonionic dispersants.