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:
Apr. 13, 1976
Filed:
Jun. 25, 1974
Applicant:
Inventor:
Richard A Guenthner, Birchwood Village, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; C09K / ;
U.S. Cl.
CPC ...
423270 ; 21 6 / ; 21 6 / ; 252385 ; 423265 ;
Abstract
A body of volatile, inorganic, normally liquid chemical which reacts with water, such as liquid sulfur trioxide, is treated to suppress the evolution of noxious acidic vapors therefrom to the atmosphere by applying to the exposed surface of said liquid body a treating agent consisting essentially of a fluorinated aliphatic liquid thickened with a thickening agent, such as fumed silica, to increase the viscosity thereof and render it relatively immobile and reduce the rate of flow of said vapors from said liquid body.