Meltblown barrier webs and processes of making same

Details Meltblown barrier webs and processes of making same Meltblown barrier webs and processes of making same

1995-06-07

1997-04-15

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Weight per unit area specified

55528, 55DIG39, 12820612, 156 624, 264DIG48, 42831111, 42831151, 4283155, 428338, 428903, 442400, A62B 2300, A62B 2306, D04H 172

Patent

active

056207859

ABSTRACT:
A nonwoven disposable face mask includes a filtration layer formed of a plurality of thermoplastic microfine meltblown microfibers having an average fiber diameter of less than 1.5 microns. The filtration layer also has a basis weight of less than ten grams per square meter. The resultant face mask provides improved wearer comfort and barrier and filtration properties.

REFERENCES:
patent: 4011067 (1977-03-01), Carey, Jr.
patent: 4041203 (1977-08-01), Brock et al.
patent: 4215682 (1980-08-01), Kubik et al.
patent: 4375718 (1983-03-01), Wadsworth et al.
patent: 4419993 (1983-12-01), Petersen
patent: 4536440 (1985-08-01), Berg
patent: 4588537 (1986-05-01), Klaase et al.
patent: 4608173 (1986-08-01), Watanabe et al.
patent: 4662005 (1987-05-01), Grier-Idris
patent: 4807619 (1989-02-01), Dyrud et al.
patent: 4813948 (1989-03-01), Insley
patent: 4863785 (1989-09-01), Berman et al.
patent: 4874399 (1989-10-01), Reed et al.
patent: 4874659 (1989-10-01), Ando et al.
patent: 4920960 (1990-05-01), Hubbard et al.
patent: 4921645 (1990-05-01), Insley
patent: 4969457 (1990-11-01), Hubbard et al.
patent: 5122048 (1992-06-01), Deeds
patent: 5149468 (1992-09-01), Hershelman
patent: 5150703 (1992-09-01), Hubbard et al.
patent: 5254297 (1993-10-01), Deeds
patent: 5306534 (1994-04-01), Bosses
patent: 5307796 (1994-05-01), Kronzer et al.
patent: 5322061 (1994-06-01), Brunson
patent: 5409766 (1995-04-01), Yuasa et al.
patent: 5436066 (1995-07-01), Chen
patent: 5482765 (1996-01-01), Bradley et al.
patent: 5486411 (1996-01-01), Hassenboehler, Jr.

Affiliated with

Also associated with

Rating

Meltblown barrier webs and processes of making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Meltblown barrier webs and processes of making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Meltblown barrier webs and processes of making same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-359465