Patent ID: 11910778
Assignee: FOUR PAWS PRODUCTS, LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC A  B | IPC A  B

Claim 0:
1. An absorbent pad comprising:
a liquid permeable layer;
a liquid impermeable layer; and
a liquid absorbent layer disposed between the liquid permeable layer and the liquid impermeable layer, the liquid absorbent layer including
a first absorption region; and
a second absorption region, the second absorption region extending around the first absorption region, the second absorption region being configured to absorb more liquid per unit area than the first absorption region;
a superabsorbent polymer in both the first absorption region and the second absorption region, whereby the first absorption region and the second absorption region both contain the superabsorbent polymer;

wherein, when in a dry state, the first absorption region and the second absorption region are substantially coplanar;
wherein the absorbent pad functions such that, when a liquid is applied to the first absorption region and the second absorption region in the dry state, the first absorption region and the second absorption region absorb the liquid and the second absorption region expands to define a raised region and the first absorption region is recessed relative to the second absorption region; and
wherein the superabsorbent polymer in the first absorption region and the second absorption region comprises a retention absorbency in a range of 30 g/g to 45 g/g as measured in a 0.9% NaCl aqueous solution.