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. 09, 1978
Filed:
Nov. 11, 1974
Applicant:
Inventors:
Hugh J Shane, Guelph, CA;
Frederick S Schell, Kitchener, CA;
Assignee:
Hart Chemical Limited, Guelph, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
252358 ; 252321 ;
Abstract
Defoamer compositions, from which particulate inorganic solids are substantially absent, are described for use in hot and cold stock pulp mill and paper mill applications. The compositions are water-emulsifiable to form stable emulsions for ease of application in use. The composition contains low viscosity mineral oils, an aliphatic diamide, silicone oil and an ethoxylated alkyl substituted phenol.