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. 27, 2001
Filed:
Jun. 06, 2000
Applicant:
Inventor:
David Grant Midkiff, Alpharetta, GA (US);
Assignee:
Kimberly-Clark Worldwide, Inc, Neenah, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/904 ; B01D 2/956 ;
U.S. Cl.
CPC ...
B01D 3/904 ; B01D 2/956 ;
Abstract
A durable meltblown filter material is provided comprising a first layer of fine polyester fibers having an average fiber diameter less than 8 micrometers and a second layer of polyester macrofibers having a significant number of fibers in excess of 12 micrometers. The macrofiber layer forms an open structure and the basis weight ratio of fine fiber layer to macrofiber layer can range from 2:1 to 10:1.