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:
Nov. 15, 2011
Filed:
Aug. 07, 2008
Dale Addison Grove, Iii, Holland, OH (US);
Alan Michael Jaffee, Bowling Green, OH (US);
Richard Thomas Giovannoni, Toledo, OH (US);
Dale Addison Grove, III, Holland, OH (US);
Alan Michael Jaffee, Bowling Green, OH (US);
Richard Thomas Giovannoni, Toledo, OH (US);
Johns Manville, Denver, CO (US);
Abstract
A method of improving filtration efficiency of a fibrous nonwoven filter media comprises providing a filter media and incorporating in the filter media one or more additives selected from the group consisting of silicone additives, wax additives, and mixtures thereof. The filter media comprises glass fibers, polymer fibers, and optionally binder. Inclusion of silicone and/or wax additive(s) in a filter media has surprisingly been found to increase filtration efficiency, for example, by 10-15%.