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:
Jul. 26, 1994
Filed:
Apr. 15, 1992
Taizo Igarashi, Hyogo, JP;
Susumu Honda, Tokyo, JP;
Tohru Yasukohchi, Kanagawa, JP;
Show Onodera, Hyogo, JP;
Nippon Oil & Fats Co., Ltd., Tokyo, JP;
Abstract
A dispersion stabilizing agent for inorganic powder in an oily material, comprising a copolymer of (i) a polyoxyalkylene derivative represented by the general formula [I] below with (ii) one or more of maleic acid and the derivatives thereof selected from the group of maleic anhydride, maleic acid, maleic acid salts, maleic acid amides, and maleic acid esters, ##STR1## where Z is a residue of a compound having 2-8 hydroxyl groups, AO is an oxyalkylene group having 2-18 carbon atoms, R.sup.1 is an unsaturated hydrocarbon group having 2-5 carbon atoms, R.sup.2 is a hydrocarbon group having 1-40 carbon atoms, a=0 to 1000, b=0 to 1000, c=0 to 1000, l=1 to 8, m=0 to 2, n=0 to 7, (l+m+n)=2 to 8, (al+bm+cn)=1 to 1000, m/(l+n).ltoreq.1/2.