Claims
- 1. A fiber blend comprising a super-absorbent fiber and secondary fiber, wherein the secondary fibers are not super-absorbent.
- 2. The fiber blend of claim 1 wherein the blend is a yarn.
- 3. The fiber blend of claim 1 wherein the blend is a sliver.
- 4. The fiber blend of claim 1 wherein the super-absorbent fiber is an acrylic acid-based super-absorbent, a bi-layer hydrolyzed polyacrylonitrile salt, a blend of thermoplastic fiber and super-absorbent particles, or a hydrolyzed polysuccinimide.
- 5. The fiber blend of claim 1 wherein the secondary fibers are staple monocomponent and/or staple bicomponent fibers.
- 6. The fiber blend of claim 5 wherein the monocomponent fibers are made of polyethylene, polypropylene, polystyrene, nylon-6, nylon-6,6, nylon12, copolyamides, polyethylene terephthalate, polybutylene terephthalate, copolyester, or cellulose based fibers, or combinations thereof.
- 7. The fiber blend of claim 5 wherein the bicomponent fibers are made of polyethylene/polyethylene terephthalate, polypropylene/polyethylene terephthalate, copolyester/polyethylene terephthalate, polyethylene/Nylon, polypropylene/Nylon, or Nylon-6,6/Nylon-6.
- 8. A method of inhibiting the flow of an aqueous liquid from a cavity having an interior and exterior which comprises disposing a self-sealing material between the interior and exterior of the cavity, wherein the self-sealing material comprises super-absorbent fibers.
- 9. The method of claim 8 wherein the super-absorbent fiber is an acrylic acid-based super-absorbent, a bi-layer hydrolyzed polyacrylonitrile salt, a blend of thermoplastic fiber and super-absorbent particles, or a hydrolyzed polysuccinimide.
- 10. The method of claim 8 wherein the self-sealing material further comprises secondary fibers.
- 11. The method of claim 10 wherein the secondary fibers are staple monocomponent and/or staple bicomponent fibers.
- 12. The method of claim 11 wherein the monocomponent fibers are made of polyethylene, polypropylene, polystyrene, nylon-6, nylon-6,6, nylon12, copolyamides, polyethylene terephthalate, polybutylene terephthalate, copolyester, or cellulose based fibers, or combinations thereof.
- 13. The method of claim 11 wherein the bicomponent fibers are made of polyethylene/polyethylene terephthalate, polypropylene/polyethylene terephthalate, copolyester/polyethylene terephthalate, polyethylene/Nylon, polypropylene/Nylon, or Nylon-6,6/Nylon-6.
- 14. The method of claim 8 wherein the cavity is a pipette tip.
- 15. A pipette tip which comprises:
a hollow tube open at opposite first and second ends; a center member disposed between said opposite first and second ends; and a means for attaching the first end of the hollow tube to a suction device; wherein said center member comprises super-absorbent fibers.
- 16. The pipette tip of claim 15 wherein the super-absorbent fiber is an acrylic acid-based super-absorbent, a bi-layer hydrolyzed polyacrylonitrile salt, a blend of thermoplastic fiber and super-absorbent particles, or a hydrolyzed polysuccinimide.
- 17. The pipette tip of claim 15 wherein the self-sealing material further comprises secondary fibers.
- 18. The pipette tip of claim 17 wherein the secondary fibers are staple monocomponent and/or staple bicomponent fibers.
- 19. The pipette tip of claim 18 wherein the monocomponent fibers are made of polyethylene, polypropylene, polystyrene, nylon-6, nylon-6,6, nylon12, copolyamides, polyethylene terephthalate, polybutylene terephthalate, copolyester, cellulose based fibers, or combinations thereof.
- 20. The pipette tip of claim 18 wherein the bicomponent fibers are made of polyethylene/polyethylene terephthalate, polypropylene/polyethylene terephthalate, copolyester/polyethylene terephthalate, polyethylene/Nylon, polypropylene/Nylon, or Nylon-6,6/Nylon-6.
Parent Case Info
[0001] This application claims priority to U.S. provisional application No. 60/317,978, filed Sep. 10, 2001, the entirety of which is incorporated herein by reference.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60317978 |
Sep 2001 |
US |