Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent
1997-12-31
2000-06-06
Kuhns, Allan R.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
264 49, 264102, 26421113, 264344, B29C 4700
Patent
active
060714514
ABSTRACT:
The present invention is a method for producing a nonwoven fabric from a water modifiable polyolefin-containing film. In order to produce the fabric where polyethylene is the minority constituent, a polymer blend is formed with the polyethylene as the dispersed phase and polyethylene oxide as the continuous phase. In another embodiment wherein the polyethylene is the majority constituent and the polyethylene oxide is the minority constituent of the film, a reactive blend created during processing exhibits an inverse phase morphology so that the polyethylene oxide becomes the continuous phase and the polyethylene becomes the dispersed phase. In either embodiment, the film is then treated with an aqueous solvent to remove the polyethylene oxide to produce the nonwoven, porous fabric. The resulting nonwoven, porous fabric has a silk-like hand and shine ideal for disposable personal hygiene articles, and is flushable through waste water disposal systems.
REFERENCES:
patent: 2185789 (1940-01-01), Jacque
patent: 3097991 (1963-07-01), Miller et al.
patent: 3099067 (1963-07-01), Merriam et al.
patent: 3323978 (1967-06-01), Rasmussen
patent: 3435705 (1969-04-01), Harmon
patent: 3461193 (1969-08-01), Gilardi
patent: 3515325 (1970-06-01), Kalwaites
patent: 3539666 (1970-11-01), Schrimer
patent: 3564677 (1971-02-01), Kalwaites
patent: 3577586 (1971-05-01), Kalwaites et al.
patent: 3595454 (1971-07-01), Kalwaites
patent: 3639199 (1972-02-01), Brandts et al.
patent: 3656672 (1972-04-01), Kalwaites
patent: 3712847 (1973-01-01), Rasmussen
patent: 3717541 (1973-02-01), Schrimer
patent: 3719540 (1973-03-01), Hall
patent: 3796778 (1974-03-01), Gallacher et al.
patent: 3869310 (1975-03-01), Fukushima et al.
patent: 3954928 (1976-05-01), Omori et al.
patent: 3991754 (1976-11-01), Gertzman
patent: 4141713 (1979-02-01), Ammannati et al.
patent: 4301203 (1981-11-01), Keuchel
patent: 4344804 (1982-08-01), Bijen et al.
patent: 4377544 (1983-03-01), Rasmussen
patent: 4385019 (1983-05-01), Bernstein et al.
patent: 4814131 (1989-03-01), Atlas
patent: 4837078 (1989-06-01), Harrington
patent: 5033172 (1991-07-01), Harrington
patent: 5045387 (1991-09-01), Schmalz
patent: 5096640 (1992-03-01), Brody et al.
patent: 5102601 (1992-04-01), Farris et al.
patent: 5104367 (1992-04-01), Hill
patent: 5120598 (1992-06-01), Robeson et al.
patent: 5178812 (1993-01-01), Sanford et al.
patent: 5182162 (1993-01-01), Andrusko
patent: 5205968 (1993-04-01), Damrow et al.
patent: 5208098 (1993-05-01), Stover
patent: 5227101 (1993-07-01), Mahoney et al.
patent: 5246647 (1993-09-01), Beck et al.
patent: 5248461 (1993-09-01), Pluyter et al.
patent: 5257982 (1993-11-01), Cohen et al.
patent: 5330827 (1994-07-01), Hansen
patent: 5470640 (1995-11-01), Modrak
patent: 5700872 (1997-12-01), Wang et al.
"Microfiber Formation: Immiscible Polymer Blends Involving Thermoplastic Poly(vinyl alcohol) as an Extractable Matrix," by L.M. Robeson, R. J. Axelrod, M. S. Vratsanos, & M. R. Kittek, Journal of Applied Polymer Science, pp. 1837-1846, vol. 52, 1994, John Wiley & Sons, Inc.
"Process for Making Smooth Vapor-Permeable Microporous Sheet Material", by T.S. Govindan, Defensive Publication, T901,007, Aug. 1, 1972.
Riddell Wilfred Eugene
Schertz David M.
Wang James H.
Kimberly--Clark Worldwide, Inc.
Kuhns Allan R.
LandOfFree
Process for making a nonwoven, porous fabric from polymer compos does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for making a nonwoven, porous fabric from polymer compos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making a nonwoven, porous fabric from polymer compos will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2210942