Abstract
A polyacrylic acid (salt)-based super absorbent polymer may satisfy Equation 1. In Equation 1, DSap is a diffusion coefficient of ethanol in the polyacrylic acid (salt)-based super absorbent polymer measured by nuclear magnetic resonance (NMR) spectroscopy, and DE is a diffusion coefficient of pure ethanol as measured by nuclear magnetic resonance spectroscopy. ( D Sap / D E ) × 100 ( % ) ≤ 92.5 ( % ) [ Equation 1 ]
Full Text
What is claimed is:
A polyacrylic acid (salt)-based super absorbent polymer may satisfy Equation 1. In Equation 1, DSap is a diffusion coefficient of ethanol in the polyacrylic acid (salt)-based super absorbent polymer measured by nuclear magnetic resonance (NMR) spectroscopy, and DE is a diffusion coefficient of pure ethanol as measured by nuclear magnetic resonance spectroscopy.
(
D
Sap
/
D
E
)
×
100
(
%
)
≤
92.5
(
%
)
[
Equation
1
]
Timeline
Filed
03/25/2026Published
07/23/2026Granted
Not AvailableIPC Codes(3)
B01J 20/26:Synthetic macromolecular compounds
B01J 20/28:characterised by their form or physical properties
C08F 220/06:Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof