Patent Application
App. No. 14/299,633
FLUTABLE FIBER WEBS WITH HIGH DUST HOLDING CAPACITY
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Abstract
The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a high dust holding capacity. The fiber webs may also exhibit a low thickness. The fiber webs may be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.
Claims (4)
1 . A fiber web having
a dust holding capacity of greater than about 3 mg/cm 2 ;
a basis weight between 30 g/m 2 and about 100 g/m 2 ; and
a machine direction tensile elongation of greater than about 3%.
Assignments (2)
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS
Recorded Jan 4, 2022
From: HOLLINGSWORTH & VOSE COMPANY
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 058649/0109 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Apr 2, 2015
From: WITSCH, JAMES M.; GUIMOND, DOUGLAS M.
To: HOLLINGSWORTH & VOSE COMPANY
Reel/Frame 035318/0573 →