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. 20, 1982
Filed:
Mar. 02, 1981
Applicant:
Inventor:
Francis J Boylan, Newton, NJ (US);
Assignee:
Drew Chemical Corporation, Boonton, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
252321 ; 162179 ; 252314 ; 252358 ;
Abstract
A free flowing aqueous defoamer comprised of alcohol, a fatty acid, a soap of a fatty acid and an anionic and/or non-ionic surfactant which prevents formation of a gelled mass of the solids and provides a free flowing dispersion of the solids in the water, with the solids contents being at least 5%, preferably at least 20%, all by weight. In a preferred embodiment, the composition includes a water soluble metal salt to render the surfaces of the solids hydrophobic. The defoamer has particular applicability for defoaming paper machine stock.