Breathable film layer compositions
AssigneeH.B. Fuller Licensing & Financing, Inc.
InventorsMark S. Kroll, Greg J. Van Lith
Life of this patent
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Abstract
The present invention is directed to compositions that are useful for forming breathable film layers and articles constructed therefrom. The composition comprises at least one thermoplastic polymer compounded with at least one diluent or a radiation curable composition. The composition is impermeable to fluids and exhibits a water vapor transmission rate of at least 100 g/m2/day.
Claims26
A composition selected from the group consisting of:
- a) a noncuring thermoplastic composition comprising ethylene methacrylic acid copolymer and at least one diluent;
- and
- b) a radiation curable composition;
- wherein said composition has a water vapor transmission rate of at least about 100/m2/day according to ASTM E 96 for a 50 μm film thickness.
A disposable article comprising a body fluid impermeable barrier layer comprising a composition selected from the group consisting of
- a) a noncuring thermoplastic composition comprising at least one thermoplastic polymer and at least one diluent, and
- b) a radiation curable composition,
- wherein said composition has a water vapor transmission rate of at least about 100/m2/day according to ASTM E 96 for a 50 μm film thickness.
An article selected from the group consisting of footwear, rainwear, medical garments, tarpaulins, and tents having a fluid impermeable barrier layer comprising a composition selected from the group consisting of
- a) a noncuring thermoplastic composition comprising at least one thermoplastic polymer and at least one diluent, and
- b) a radiation curable composition,
- wherein said composition has a water vapor transmission rate of at least about 100/m2day according to ASTM E 96 for a 50 μm film thickness.
Dependencies are inferred from the claim text.