Claims
- 1. A thermoplastic composition comprising a thermoplastic component comprising at least one thermoplastic polymer and at least one diluent having polar functionality and at least one superabsorbent polymer.
- 2. The thermoplastic composition of claim 1 wherein said thermoplastic component is water insensitive.
- 3. The thermoplastic composition of claim 1 wherein said diluent is a plasticizer.
- 4. The thermoplastic composition of claim 1 wherein said diluent is a wax.
- 5. The thermoplastic composition of claim 1 wherein the diluent is present in an amount ranging from about 5 wt-% to about 30 wt-%.
- 6. The thermoplastic composition of claim 1, wherein said superabsorbent polymer is in the form of particles having a particle size less than about 1000 microns.
- 7. The thermoplastic composition of claim 1, wherein said superabsorbent polymer is in the form of particles having a particle size less than about 500 microns.
- 8. The thermoplastic composition of claim 1, wherein said superabsorbent polymer is in the form of particles having a particle size less than about 300 microns.
- 9. The thermoplastic composition of claim 1, wherein said superabsorbent polymer is in the form of particles having a particle size less than about 200 microns.
- 10. The thermoplastic composition of claim 1 wherein the superabsorbent polymer is present in an amount ranging from about 30 wt-% to about 60 wt-%.
- 11. The thermoplastic composition of claim 1 wherein the thermoplastic component comprises at least one polymer selected from the group consisting of block copolymers, amorphous polyolefins, crystalline polyolefins, interpolymers of ethylene and mixtures thereof.
- 12. The thermoplastic composition of claim 1 wherein the composition gels at a rate substantially equal to or faster than that of the superabsorbent polymer alone.
- 13. The thermoplastic composition of claim 1 wherein the composition gels in less than 1 hour.
- 14. The thermoplastic composition of claim 1 wherein the composition gels in less than 30 minutes.
- 15. The thermoplastic composition of claim 1 wherein the thermoplastic component is a hot melt adhesive.
- 16. A film layer disposed on a substrate comprising the thermoplastic composition of claim 1.
- 17. The thermoplastic composition of claim 16 wherein superabsorbent polymer has a particle size equal to or greater than the thickness of the film.
- 18. A method of making a film comprising the steps of providing a molten mixture of a composition of claim 1 and forming a substantially continuous film from said molten mixture.
- 19. A method of applying superabsorbent polymer to a substrate comprising the steps of:a) providing a molten mixture comprising the thermoplastic composition of claim 1; and b) applying said mixture to a substrate.
- 20. The method of claim 19 wherein said substrate is selected from the group consisting of, film, paper, nonwoven, tissue, and an absorbent core.
- 21. A nonwoven web comprising the composition of claim 1.
- 22. A disposable article comprising a body fluid pervious topsheet and a body fluid impervious backsheet and the composition of claim 1 disposed between said topsheet and backsheet.
- 23. A thermoplastic composition comprising from about 25 wt-% to about 50 wt-% of a thermoplastic component and about 35 wt-% to about 75 wt-% superabsorbent polymer, said composition having a Brookfield viscosity of less than 30,000 cPs at about 180° C.
- 24. The thermoplastic composition of claim 23 wherein the thermoplastic component consists essentially of:a) about 10 wt-% to about 50 wt-% of at least one water insoluble polymer; b) 0 wt-% to about 30 wt-% of a plasticizer having polar functionality; and c) 0 wt-% to about 40 wt-% of a tackifier, wax, non-polar plasticizer, or a mixture thereof.
- 25. A thermoplastic composition comprising about 25 wt-% to about 75 wt-% of a continuous phase of thermoplastic component and about 25 wt-% to about 75 wt-% of a matrix of superabsorbent polymer wherein the superabsorbent gels in less than 3 hours.
- 26. A thermoplastic composition comprising:a thermoplastic component comprising at least one thermoplastic polymer, and at least one diluent having polar functionality; and at least one superabsorbent polymer, wherein said composition gels at a rate substantially equal to or faster than that of the superabsorbent polymer alone.
- 27. A film layer disposed on a substrate, said film layer comprising a thermoplastic composition comprisinga thermoplastic component comprising at least one thermoplastic polymer, and at least one diluent having polar functionality; and at least one superabsorbent polymer having a particle size equal to or greater than the thickness of the film layer.
- 28. A film layer disposed on a substrate, said film layer comprising a thermoplastic composition comprisinga thermoplastic component comprising at least one thermoplastic polymer, and at least one diluent having polar functionality; and at least one superabsorbent polymer comprising particles having a particle size equal to or greater than the thickness of the thermoplastic component.
- 29. A thermoplastic composition comprisinga thermoplastic component comprising at least one polymer and at least one diluent having polar functionality; and at least one superabsorbent polymer, said composition comprising at least about 5 wt-% said diluent.
RELATED APPLICATIONS
This application is a Continuation of U.S. patent application Ser. No. 09/306,265 filed May 6, 1999, and claims priority from provisional application No. 60/084,582 May 7, 1998.
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Date |
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55-36326 |
Mar 1980 |
JP |
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JP |
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Provisional Applications (1)
|
Number |
Date |
Country |
|
60/084582 |
May 1998 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
09/306265 |
May 1999 |
US |
Child |
09/652470 |
|
US |