Claims
- 1. A process for producing a non-woven health care laminate comprising the steps of:
- (a) forming a first outer layer of spun-bonded filaments of a non-polar polymer;
- (b) depositing thereon a first insulative layer of melt-blown fibers of a non-polar polymer;
- (c) depositing thereon a central layer of melt-blown fibers of a polar polymer;
- (d) depositing thereon a second insulative layer of melt-blown fibers of a non-polar polymer;
- (e) depositing thereon a second outer layer of spun-bonded filaments of a non-polar polymer;
- (f) laminating the layers together to form the laminate; and
- (g) treating the laminate with a fluorocarbon suspended in an alcohol and driving off the alcohol with heat.
- 2. The process of claim 1, wherein each insulative layer has a basis weight greater than 0.10 oz/yd.sup.2.
- 3. The process of claim 2, wherein the polar polymer is selected from the group consisting of poly (ethylene-vinyl acetate), poly (ethylene-ethyl acrylate), poly (ethylene-acrylic acid), poly (ethylene-methyl acrylate).
- 4. The process of claim 2 or 3, wherein the non-polar polymers are selected from the group consisting of polypropylene, polyethylene, random co-polymers of ethylene and propylene, and blends of polypropylene and polyethylene.
Parent Case Info
This is a divisional application of application Ser. No. 07/148,817, filed on Jan. 27, 1988 now U.S. Pat. No. 4,818,597, dated Apr. 4, 1989.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4041203 |
Brock et al. |
Aug 1977 |
|
4115605 |
Hultman et al. |
Sep 1978 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
148817 |
Jan 1988 |
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