Process for hydrolyzing water-soluble carboxamide polymers

Details Process for hydrolyzing water-soluble carboxamide polymers Process for hydrolyzing water-soluble carboxamide polymers

1977-11-02

1979-04-24

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 296WQ, 260 296HN, C08L 3324

Patent

active

041511409

ABSTRACT:
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.

REFERENCES:
patent: 2820777 (1958-01-01), Suen et al.
patent: 3022279 (1962-02-01), Proffitt
patent: 3284393 (1966-11-01), Vanderhoff et al.
patent: 3624019 (1971-11-01), Anderson et al.
patent: 3734873 (1973-05-01), Anderson et al.
patent: 3915920 (1975-10-01), Slovinsky et al.

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