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US 2024/0225920 A9Published application
Composite absorber, and polymer absorbent
AssigneeOrgano Corporation
InventorsHitoshi TAKADA, Ryouta IWAURA
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Abstract
A composite absorber for absorbing liquid, the composite absorber having: a polymer absorbent having a hydrophilic continuous skeleton and continuous pores; and a highly absorbent polymer, wherein the polymer absorbent contains at least a —COOH group and —COONa group as an ion exchange group, and the total ion exchange capacity of the —COOH group and —COONa group per mass in a dry state is at least 4.0 mg equivalent/g.
Claims9
A composite absorbent body for absorption of liquid, wherein:
- the composite absorbent body includes a polymer absorbent comprising a hydrophilic continuous skeleton and continuous pore, and a superabsorbent polymer, and
- the polymer absorbent contains at least a —COOH group and a —COONa group as ion-exchange groups, a total ion-exchange capacity for —COOH and —COONa groups being 4.0 mg equivalents/g or greater per mass in a dry state.
A polymer absorbent to be used with a superabsorbent polymer, wherein:
- the polymer absorbent comprises a hydrophilic continuous skeleton and continuous pore, and
- contains at least a —COOH group and a —COONa group as ion-exchange groups, a total ion-exchange capacity for —COOH and —COONa groups being 4.0 mg equivalents/g or greater per mass in a dry state.
Dependencies are inferred from the claim text.