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US 4,699,823 AGranted
Non-layered absorbent insert having Z-directional superabsorbent concentration gradient
AssigneeKimberly-Clark Corporation
InventorsStanley R. Kellenberger, David L. Zenker
Life of this patent
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Abstract
An improved absorbent article includes a layer of absorbent material which has a length, a width and a thickness. Particles of superabsorbent material are distributed within the absorbent material layer, and these superabsorbent particles are disposed to form a substantially continuous, non-step-wise, positive concentration gradient of superabsorbent through at least a portion of the thickness of the absorbent layer.
Claims18
An absorbent article, comprising:
- (a) a layer of absorbent material having a length, a width and a thickness;
- and
- (b) particles of superabsorbent material distributed within said absorbent material layer;
- (c) wherein said superabsorbent particles are disposed to form a substantially continuous, non-step-wise positive concentration gradient of superabsorbent through at least a portion of the thickness of said absorbent layer, and wherein said superabsorbent concentration are measured on a weight percent basis.
1 more element
Dependencies are inferred from the claim text.