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:
Nov. 24, 1981

Filed:

Jul. 01, 1980
Applicant:
Inventors:

Masaaki Yamamura, Wakayama, JP;

Noboru Moriyama, Wakayama, JP;

Shinichi Watanabe, Wakayama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
44 51 ;
Abstract

Aqueous dispersions of coal powder having good flowability properties are provided by employing, as the dispersing agent, an anionic surface active agent having the formula:


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