Title:
HIGH EFFICIENCY BREATHING MASK FABRICS
Document Type and Number:
WIPO Patent Application WO1997023246
Kind Code:
A3
Abstract:
A breathing mask fabric is provided which has between 50 and 95 weight percent of a through-air bonded, electret treated, nonwoven microfiber first web of fibers where the fibers have an average diameter of between about 10 and 25 microns and where the first web has a Frazier Permeability above about 100 CFM/SF, a density of between about 0.015 and 0.15 gms/cc, and a basis weight between about 67 gsm and about 340 gsm, and between about 5 and 50 weight percent of an electret treated microfiber second web of fibers where the fibers have an average diameter of less than about 10 microns.
Inventors:
SINGER IRWIN JEROLD
PIKE RICHARD DANIEL
PIKE RICHARD DANIEL
Application Number:
PCT/US1996/019852
Publication Date:
August 21, 1997
Filing Date:
December 11, 1996
Export Citation:
Assignee:
KIMBERLY CLARK CO (US)
International Classes:
A62B23/02; A41D13/11; B01D39/08; B01D39/14; B03C3/28; B32B5/26; D04H1/42; D04H3/16; D06M10/00; (IPC1-7): A61L/
Domestic Patent References:
| WO1995013856A1 | 1995-05-26 |
Foreign References:
| US4363682A | 1982-12-14 | |||
| EP0391726A2 | 1990-10-10 | |||
| EP0634511A1 | 1995-01-18 | |||
| US5307796A | 1994-05-03 |
Download PDF:
Previous Patent: USE OF ANTISENE OLIGODEOXYNUCLEOTIDES TO PRODUCE TRUNCATED PROTEINS
Next Patent: ANTIPERSPIRANT PADS
Next Patent: ANTIPERSPIRANT PADS