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:
Jan. 25, 1977
Filed:
Jul. 31, 1974
Applicant:
Inventors:
John T O'Brien, Cheshire, CT (US);
Woodrow W White, Oxford, CT (US);
Assignee:
Uniroyal Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08H / ; C08L / ;
U.S. Cl.
CPC ...
106135 ; 106137 ; 106213 ; 106214 ; 1063 / ; 252353 ; 260 / ;
Abstract
This invention relates to the use of bisulfite-terminated oligomers as dispersants for solid particulate matter, i.e., low molecular weight bisulfate-terminated polymers containing carboxylate groups and either cyano or carbomethoxy moieties are improved dispersants for solid particulate matter like pigments such as titanium dioxide, clay, calcium carbonate, talc, and zinc oxide, as well as for organic pigments. Particularly, these dispersants have been found useful for stabilizing paper coating compositions.