| abstract |
The present invention provides a water-in-oil polymeric emulsion composition, including: (a) 25 to 65 wt% of a cross-linked polymer; (b) 15 to 40 wt% of an oil; (c) 1 to 12 wt% of a surfactant; and (d) 1 to 40 wt% of water, wherein (a) the cross-linked polymer is polymerized by using 35 to 85 mol% of a 2-acrylamido-2-methylpropane-sulfonic acid totally or partially salified by an alkali metal or ammonium, 15 to 65 mol% of acryloyl morpholine, and 0.005 to 1 mol% of a polyethylenic monomer used as a cross-linking agent. |