Patent ID: 11911744
Assignee: nan
Field: Pharmaceuticals (Chemistry)
Classification: CPC A  B  C | IPC A  B

Claim 13:
14. A method of preparing a superabsorbent material that comprises agar, carrageenan, and konjac gum, comprising:
combining agar, carrageenan, and konjac gum with water to form a mixture;
heating the mixture until the agar, carrageenan, and konjac gum are completely dissolved;
cooling the mixture to form a gel;
freezing the gel to obtain a frozen gel;
thawing the frozen gel to obtain a thawed gel; and
drying the thawed gel to obtain the superabsorbent material;
wherein the superabsorbent material has a volume expansion ratio of at least 5 in deionized water at 25° C.; and
wherein the superabsorbent material comprises at least 10% by weight of agar or at least 20% by weight of carrageenan; or wherein the superabsorbent material comprises agar, carrageenan, and konjac gum at a weight ratio of 10:1:1, 1:1:1, 1:1:2, 1:2:1, 2:1:1, or 2:5:5.