Controlled hysteresis nonwoven laminates
AssigneeKimberly-Clark Worldwide, Inc.
InventorSusan Elaine Shawver
Life of this patent
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Abstract
There is provided herein a multilayer material comprised of layers of elastomeric films, fiber, or webs wherein at least one layer is comprised of an elastomeric polyolefin and at least one additional layer is comprised of an elastomer selected from the group consisting of polyurethanes, copolyether esters, polyamide polyether block copolymers, ethylene vinyl acetates (EVA), and block copolymers having the general formula A-B-A', A-B-A-B or A-B like copoly(styrene/ethylene-butylene), (polystyrene/poly(ethylene-butylene)/polystyrene), and poly(styrene/ethylene-butylene/styrene). Such a material also includes at least one gatherable web to which the elastic webs are joined and may be made into a personal care product, an infection control product, a protective cover or a garment.
Claims17
A controlled hysteresis composite elastic material comprising a first layer which is an elastomeric polyolefin layer and which is joined to at least one other layer comprised of an elastomeric polymer selected from the group consisting of polyurethanes, copolyether esters, polyamide polyether block copolymers, ethylene vinyl acetates (EVA), and block copolymers having the general formula A-B-A', A-B-A-B or A-B, and which is also joined to a third layer which is a gatherable web.
A controlled hysteresis composite elastic material comprising a first layer which is a metallocene polyolefin layer comprised of fibers having an average diameter less than about 10 microns and which is joined to a second layer comprised of fibers having an average diameter less than about 10 microns comprised of an elastomeric polymer selected from the group consisting of polyurethanes, copolyether esters, polyamide polyether block copolymers, ethylene vinyl acetates (EVA), and block copolymers having the general formula A-B-A', A-B-A-B or A-B, which are also joined to a third layer which is a gatherable web of fibers having an average diameter greater than about 7 microns.
Dependencies are inferred from the claim text.