Absorbent article with microencapsulated phase change material
AssigneeFirst Quality Retail Services, LLC
InventorJames William Cree
Life of this patent
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Abstract
An absorbent article is provided with microencapsulated phase change material (microPCM) particles that are embedded in and/or coated onto a layer of the absorbent article that includes a resilient sheet of an open-cell foam. The foam layer is disposed such that it is in contact with or is in proximity to the user. The microPCM particles absorb heat generated during use of the absorbent article to reduce the contact temperature on the inside of the absorbent article and improve the comfort of the user. To maximize comfort, the phase change temperature of the microPCM particles may be an average normal body temperature.
Claims18
An absorbent article comprising:
- at least one layer including a foam with microPCM particles, wherein the foam comprises a resilient sheet of an open-cell foam comprising at least one of a polyether urethane foam, a polyester urethane foam, a foam rubber, or a high internal phase emulsion polyethylene foam.
An absorbent article comprising:
- a topsheet,
- a backsheet,
- an absorbent core between the topsheet and backsheet, and
- a carrier layer, between the topsheet and the absorbent core, comprising a resilient sheet of an open-cell foam with microPCM particles, wherein the open-cell foam comprises at least one of a polyether urethane foam, a polyester urethane foam, a foam rubber, or a high internal phase emulsion polyethylene foam.
Dependencies are inferred from the claim text.