Claims
- 1. A static dissipating fabric comprising fabric woven of non-conductive tapes, to which a plurality of conductive staple fibers are woven into or coated onto the fabric at a spacing of from 3 mm to 100 mm.
- 2. The static dissipating fabric of claim 1 wherein the polypropylene fabric further comprises 11 of 900 denier tapes/inch in the warp direction and 9 of 1300 denier tapes/inch in the weft direction; wherein tapes further comprise polypropylene homopolymer with ultraviolet inhibitors.
- 3. The static dissipating fabric of claim 1 further providing reduced energy of electrostatic discharge for use in a combustible environment without the need for antistatic coatings.
- 4. The static dissipating fabric of claim 2 wherein the conductive staple yarn is woven into the fabric at a spacing from 10 mm to 100 mm.
- 5. The static dissipating fabric of claim 2 wherein the conductive staple yarn is woven into the fabric at a spacing of 25 mm.
- 6. The static dissipating fabric of claim 2 further comprising a polymeric coating.
- 7. The static dissipating fabric of claim 6 wherein the polymeric coating comprises 79.5% weight polypropylene homopolymer; 19% weight low density polyethylene polymer and 1.5% weight ultraviolet inhibitors.
- 8. The static dissipating fabric of claim 7 wherein the conductive staple yarn is woven into the fabric at a spacing from 10 mm to 100 mm.
- 9. The static dissipating fabric of claim 7 wherein the conductive staple yarn is woven into the fabric at a spacing of 25 mm.
- 10. The static dissipating fabric of claim 6 wherein the polymeric coating comprises 73.5% weight polypropylene homopolymer; 19% weight low density polyethylene polymer; 1.5% weight ultraviolet inhibitors and 6% weight of 25% weight antistatic masterbatch.
- 11. The static dissipating fabric of claim 10 wherein the conductive staple yarn is woven into the fabric at a spacing from 10 mm to 100 mm.
- 12. The static dissipating fabric of claim 10 wherein the conductive staple yarn is woven into the fabric at a spacing of 25 mm.
- 13. An ungrounded type flexible fabric container with a reduced energy of electrostatic discharge for use in a combustible environment comprising: a woven fabric configured to form the flexible fabric container having side walls, a closed end and an open end; and said woven fabric made as from claim 1.
- 14. An ungrounded type flexible fabric container with a reduced energy of electrostatic discharge for use in a combustible environment comprising: a woven fabric configured to form the flexible fabric container having side walls, a closed end and an open end; and said woven fabric made as from claim 2.
- 15. An ungrounded type flexible fabric container with a reduced energy of electrostatic discharge for use in a combustible environment comprising: a woven fabric configured to form the flexible fabric container having side walls, a closed end and an open end; and said woven fabric made as from claim 3.
- 16. An ungrounded type flexible fabric container with a reduced energy of electrostatic discharge for use in a combustible environment comprising: a woven fabric configured to form the flexible fabric container having side walls, a closed end and an open end; and said woven fabric made as from claim 5.
- 17. An ungrounded type flexible fabric container with a reduced energy of electrostatic discharge for use in a combustible environment comprising: a woven fabric configured to form the flexible fabric container having side walls, a closed end and an open end; and said woven fabric made as from claim 6.
- 18. An ungrounded type flexible fabric container with a reduced energy of electrostatic discharge for use in a combustible environment comprising: a woven fabric configured to form the flexible fabric container having side walls, a closed end and an open end; and said woven fabric made as from claim 7.
- 19. An ungrounded type flexible fabric container with a reduced energy of electrostatic discharge for use in a combustible environment comprising: a woven fabric configured to form the flexible fabric container having side walls, a closed end and an open end; and said woven fabric made as from claim 9.
- 20. An ungrounded type flexible fabric container with a reduced energy of electrostatic discharge for use in a combustible environment comprising: a woven fabric configured to form the flexible fabric container having side walls, a closed end and an open end; and said woven fabric made from static dissipating fabric comprising fabric woven of non-conductive tapes of polypropylene having a melt flow index of 1-6 g/10 min. and wherein the tapes have a denier from 500 to 4000 and tape width from 0.07 to 0.40 inches, to which a plurality of strands made of conductive staple fibers are woven into or coated onto the fabric at a spacing of from 3 mm to 100 mm.
- 21. The container of claim 20 wherein the fabric further comprises a coating layer of polypropylene polymers having a melt flow index greater than 10 g/10 min.
CROSS REFERENCE TO OTHER PATENT APPLICATIONS
[0001] This application claims priority under 35 U.S.C. 119 from U.S. provisional patent application serial No. 09/242,999 filed Oct. 25, 2000 of the same title and inventors, which is incorporated by reference in its entirety.
Provisional Applications (1)
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Number |
Date |
Country |
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60242999 |
Oct 2000 |
US |