Claims
- 1. A nonwoven fabric laminate comprising in sequence;
- a) a static dissipative nonwoven textile material comprising: an electrically conductive polytetrafluoroethylene fiber intermixed with at least one other synthetic organic fluorocarbon fiber wherein the static dissipative nonwoven textile material has a static dissipation time of 0.5 seconds or less, and
- b) a porous polymeric membrane.
- 2. A nonwoven fabric laminate as described in claim 1 wherein the porous polymeric membrane is selected from the group consisting of nitrocellulose, triacetyl cellulose, polyamide, polyurethane, polycarbonate, polyethylene, polypropylene, polytetrafluoroethylene, polysulfone, polyvinyl chloride, polyvinylidine fluoride, acrylate copolymer and methacrylate copolymer.
- 3. A nonwoven fabric laminate as described in claim 1 wherein the porous polymeric membrane is expanded porous polytetrafluoroethylene.
- 4. A nonwoven fabric laminate as described in claim 1 in the form of a filter bag.
- 5. A nonwoven fabric laminate as described in claim 1 in the form of a filter cloth.
Parent Case Info
This application is a division of application Ser. No. 07/809,891 filed Dec. 18, 1991.
US Referenced Citations (3)
Divisions (1)
|
Number |
Date |
Country |
Parent |
809891 |
Dec 1991 |
|