Reaction equation
[OH-].[Na+].[NH:3]1[CH:7]([C:8]([O-:10])=[O:9])[CH2:6][CH2:5][C:4]1=[O:11].[Na+]>O>[C:8]([CH2:7][NH:3][C:4](=[O:11])[CH:5]=[CH2:6])([OH:10])=[O:9]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
100 g of 25 wt % polyacrylic acid aqueous solution (viscosity 8000-12000 cps, 30 ° C.) and 3 g of N-carboxy methyl acrylamide were polymerized at 70° C. for 3 hours for partial crosslinking. Sodium hydroxide was added to neutralize the pH value to 7.0 and 20 g of poly(ether alcohol)(GEP-2800, Dow Chemical Co., U.S.A.) and 1.5 g of sodium 2-pyrrolidone-5-carboxylate were added. Deionized water was then added to the resulting product to adjust the solid content thereof to 35 wt %. The viscosity of the resultant solution was measured as 6000 to 6500 cps(30° C.). The resulting product was tested according to the procedures as set forth in Example 1 and the test results are listed in Table 1.
Workup
- customwas measured as 6000 to 6500 cps(30° C.)
- customthe test results
Sources & evidence
- ORD record
- ord-fdac4201e63c4de3ae7bc8303e691d9b
- Source dataset
- uspto-grants-1995_05
- Patent number
- US05420182
Linked notes
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