| 摘要 |
A stable, water-in-oil emulsion of a partially hydrolyzed carboxamide polymer is prepared by contacting a water-in-oil emulsion of an inherently water-dispersible polymer containing carboxamide groups, e.g., polyacrylamide, with a water-in-oil emulsion of a hydrolyzing agent such as sodium hydroxide. By emulsifying the hydrolyzing agent prior to hydrolysis, the hydrolysis reaction can be carried out over a wider range of reaction conditions such as temperature and the like without destroying the water-in-oil emulsion of the polymer.
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