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AssigneeKimberly-Clark Worldwide, Inc.
InventorsRoger B. Quincy, Susan Kathleen Cobbs, Eugenio G. Varona, Jeffrey E. Fish, Clifford Jackson Ellis
Estimating the term…
A warming product that contains an exothermic composition configured to generate heat in the presence of oxygen and moisture is provided. The exothermic composition is applied to a thermal composite containing two or more fibrous layers, which are structured to provide enhanced distribution of the exothermic composition through the thermal composite structure. For example, a first fibrous layer may rapidly acquire the exothermic composition and distribute it primarily in the −z direction (direction of thickness) to a second fibrous layer, which may then distribute the exothermic composition primarily in the −x and −y directions. Typically, at least a portion of the exothermic composition is able to flow through the second fibrous layer and contact additional layers. For example, the exothermic composition may contain a moisture-holding layer configured to supply moisture to the exothermic composition. This places the exothermic composition into close contact with the moisture-holding layer, which may provide enhanced heating efficiency. Further, the exothermic composition may also adhere the moisture-holding layer to the composite without the need for additional bonding mechanisms.
A warming product comprising a thermal composite that includes a first fibrous layer and a second fibrous layer, the permeability of the first fibrous layer being greater than the permeability of the second fibrous layer, the product further comprising an exothermic composition distributed through the first fibrous layer and the second fibrous layer of the composite, the exothermic composition comprising a metal configured to undergo an exothermic reaction upon exposure to oxygen and moisture.
A method for forming a warming product that contains a thermal composite, the thermal composite including a first fibrous layer and a second fibrous layer, wherein the method comprises:
Dependencies are inferred from the claim text.