Compositions comprising a thermoplastic component and superabsorbent polymer
AssigneeH. B. Fuller Licensing & Financing, Inc.
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.
Claims24
A thermoplastic composition comprising a thermoplastic component comprising at least one thermoplastic polymer and at least one water insensitive diluent having polar functionality;
- and at least one superabsorbent polymer.
A thermoplastic composition comprising a thermoplastic component comprising at least one interpolymer of ethylene having a melt index greater than about 100 g/10 minutes and a comonomer content greater than 30 wt-% and at least one superabsorbent polymer.
A thermoplastic composition comprising about 25 wt-% to about 50 wt-% of a thermoplastic composition having a Brookfield viscosity of less than 30,000 cPs at about 180° C. and about 35 wt-% to about 75 wt-% of a superabsorbent polymer wherein the thermoplastic component consists essentially of:
- a) about 10 wt-% to about 50 wt-% of at least one water insoluble polymer;
- b) 5 wt-% to about 30 wt-% of a water insensitive plasticizer having polar functionality;
- and
- c) 0 wt-% to about 40 wt-% of a tackifier, wax, non-polar plasticizer, or a mixture thereof.
A thermoplastic composition comprising at thermoplastic component comprising at least one thermoplastic polymer and at least one water insensitive diluent having polar functionality and at least one superabsorbent polymer, said composition gelling 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 at least one thermoplastic polymer and at least one water insensitive diluent having polar functionality and at least one superabsorbent polymer having a particle size equal to or greater than the thickness of the film.
Dependencies are inferred from the claim text.