Compositions comprising a thermoplastic component and superabsorbent polymer
OwnerSharf U. Ahmed, Andualem W. Emiru +2inventors
InventorsSharf U. Ahmed, Andualem W. Emiru, Leslie J. Clapp, Mark S. Kroll
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Abstract
The present invention relates to a composition comprising a thermoplastic component and at least one superabsorbent polymer, methods of use for such composition, and articles comprising such composition. The composition may be formed into a film layer or applied to an article with various hot melt adhesive application techniques. The composition is useful for a variety of end-uses, particularly for use in disposable absorbent articles such as disposable diapers, feminine napkins and medical dressings.
Claims29
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.
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.
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.
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.
A film layer disposed on a substrate, said film layer comprising 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 having a particle size equal to or greater than the thickness of the film layer.
A film layer disposed on a substrate, said film layer comprising 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 comprising particles having a particle size equal to or greater than the thickness of the thermoplastic component.
A thermoplastic composition comprising
- a 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.
Dependencies are inferred from the claim text.