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:
Oct. 14, 1997
Filed:
Sep. 13, 1995
Richard Billings, Chelsea, OK (US);
Lyle D Burns, Bartlesville, OK (US);
Other;
Abstract
A method for cleaning contaminated surfaces or for cleaning bulk contamination of hydrocarbons or chemicals. To clean hydrocarbon or chemical contaminated surfaces, a basic aqueous silica solution is sprayed onto the contaminated surface and allowed to dry. The resulting dry material will flake off, leaving a cleaned surface, without damaging the surface. To clean bulk contamination of hydrocarbons or chemicals, the basic silica solution is mixed with hydrocarbons or chemicals and then an acidic aqueous polymer solution is added and mixed. An amorphous silica material is immediately formed which permanently encapsulates the hydrocarbons or chemicals and which dries to an inert powder.