Stock material or miscellaneous articles – Structurally defined web or sheet – Including grain – strips – or filamentary elements in...
Patent
1992-12-31
1994-06-14
Cannon, James C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including grain, strips, or filamentary elements in...
55528, 55DIG5, 2642101, 2642884, 2642888, 428109, 428110, 428113, 428219, 428236, 428237, 428239, 428283, 428286, 428287, 428296, 428297, 428298, B32B 512, B32B 518, B32B 526
Patent
active
053208919
ABSTRACT:
Disclosed is a method of producing a nonwoven material having improved resistance to penetration by particles. The method includes the steps of heating at least one nonwoven web containing meltblown thermoplastic polymer fibers to a temperature at which the peak total energy absorbed by the nonwoven web of meltblown fibers is at least about 250 percent greater than the amount absorbed by the nonwoven web of meltblown fibers at room temperature; applying a tensioning force to neck the heated nonwoven web so that at least a portion of individual meltblown fibers have sections where the fiber diameter is substantially less than the diameter of the immediately adjacent sections; and cooling the necked nonwoven web Also disclosed is a nonwoven material composed of at least one web of meltblown thermoplastic polymer fibers, the web containing at least a portion of individual meltblown fibers having sections where the fiber diameter is substantially less than the diameter of the immediately adjacent sections so that the web is adapted to have improved resistance to particle penetration. The nonwoven material may be a component of a multilayer material having desirable resistance to particle penetration.
REFERENCES:
patent: 1741530 (1929-12-01), Mayer
patent: 2971322 (1961-02-01), Bouvet
patent: 3047444 (1962-07-01), Harwood
patent: 3059313 (1962-10-01), Harmon
patent: 3081519 (1963-03-01), Blades et al.
patent: 3169899 (1965-02-01), Steuber
patent: 3256258 (1966-06-01), Herrman
patent: 3396071 (1968-08-01), Couzens
patent: 3406033 (1968-10-01), Reitz
patent: 3438844 (1969-04-01), Kumin
patent: 3485695 (1969-12-01), Ness
patent: 3575784 (1971-04-01), Phillips et al.
patent: 3772417 (1973-11-01), Vogt
patent: 3932682 (1976-01-01), Loft et al.
patent: 3949128 (1976-04-01), Ostermeier
patent: 4013816 (1977-03-01), Sabee et al.
patent: 4041203 (1977-08-01), Brock et al.
patent: 4193899 (1980-03-01), Brenner et al.
patent: 4209563 (1980-06-01), Sisson
patent: 4342812 (1982-08-01), Selwood
patent: 4443513 (1984-04-01), Meitner et al.
patent: 4467595 (1984-08-01), Kramers
patent: 4486485 (1984-12-01), Sookne
patent: 4489543 (1984-12-01), Bromley et al.
patent: 4515854 (1985-05-01), Kogame et al.
patent: 4551378 (1985-11-01), Carey, Jr.
patent: 4554121 (1985-11-01), Kramers
patent: 4554207 (1985-11-01), Lee
patent: 4578307 (1986-03-01), Niki et al.
patent: 4606964 (1986-08-01), Wideman
patent: 4612148 (1986-09-01), Motooka et al.
patent: 4652487 (1987-03-01), Morman
patent: 4657802 (1987-04-01), Morman
patent: 4696779 (1987-09-01), Wideman
patent: 4714647 (1987-12-01), Shipp, Jr. et al.
patent: 4720415 (1988-01-01), VanderWielen et al.
patent: 4781966 (1988-11-01), Taylor
patent: 4965122 (1990-10-01), Morman
Translation of PCT/JP91/00594.
Levy Ruth L.
Morman Michael T.
Cannon James C.
Kimberly-Clark Corporation
Robinson James B.
Sidor Karl V.
LandOfFree
Particle barrier nonwoven material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Particle barrier nonwoven material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Particle barrier nonwoven material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1248090