Particulate water absorbent mainly composed of water absorbing resin, manufacturing method therefor, and absorptive article
A technology of water-absorbing resin and water-absorbing agent, applied in chemical instruments and methods, absorbing pads, other chemical processes, etc., can solve the problems of insufficient deodorization performance, not showing sufficient performance, etc., and achieve the effect of excellent absorption capacity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0251] Into a 2 L four-neck separable flask equipped with a stirrer, reflux condenser, thermometer, nitrogen inlet tube and dropping funnel, 1.0 L of cyclohexane was charged, and 3.8 g of fatty acid sucrose ester (DAI-ICHI KOGYO SEIYAKU Co. Manufacture, DK-esterF-50, HLB=6) as a dispersant dissolved therein. Dissolved oxygen was degassed by bubbling nitrogen. In another flask, 84.6 g of sodium acrylate, a neutralized product of the acrylic acid of Production Example 1, 21.6 g of the acrylic acid of Production Example 1, and 0.016 g of N, N'-methylenebisacrylamide were dissolved in 197 g of ion Water was exchanged, and 0.4 g of hydroxyethylcellulose (manufactured by Daicel Chemical Industries, HEC-Daicel EP-850) was dissolved therein to prepare an aqueous monomer solution having a monomer concentration of 35 wt%. To this monomer aqueous solution, 0.15 g of potassium persulfate was added and dissolved therein. Then, the dissolved oxygen was degassed by bubbling nitrogen. Then...
Embodiment 2
[0257] To 100 parts by weight of the particulate water-absorbing agent (1) obtained in Example 1, 0.3 parts by weight of fine granular silica (manufactured by NIPPON AEROSIL, AEROSIL® 200 (average particle size of primary particles: 12 nm) was added and mixed (dry blended). )) to obtain granular water-absorbing agent (2). The results of evaluating the thus obtained particulate absorbent (2) in a similar manner to Example 1 are shown in Tables 1 and 2.
Embodiment 3
[0259] By spraying 2 parts by weight of an aqueous solution of a plant leaf extract comprising diethylenetriaminepentaacetic acid and a 15% by weight Theaceae plant (trade name: FS-80MO, supplier: Shiraimatu Shinyaku company, address: 37- 1 Ugawa, Minakuchi-cho, Kouka-Gun, Shiga-ken, Japan) aqueous solution, mixed with 100 parts by weight of the granular water-absorbing agent (1) obtained in Example 1 (the amount of each component is adjusted so that Diethylenetriaminepentaacetic acid and 15wt% of plant leaf extract of Theaceae plants are respectively 50ppm (weight) and 0.1wt% relative to the water-absorbing agent (1). The resulting mixture was cured at 60°C for 1 hour. Then, 0.3 parts by weight of fine granular calcium stearate (manufactured by Kanto Chemical Co., Ltd.) was added and mixed (dry blended) thereto to obtain a granular water absorbing agent (3). Table 1 and Table 2 show the results of evaluating the thus obtained particulate water-absorbing agent (3) in a simila...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| boiling point | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More