Patent ID: 8258249
Filing Date: 2012-09-04
Classification: B01J,C07C,C08F

Abstract:
1. A superabsorbent polymer comprising: i) acrylic acid, wherein said acrylic acid is made by the process comprising the steps of: ii) allyloxypolyethyleneglycol acrylic acid ester; wherein during the dehydration a liquid phase al and a gas phase a2 is present; wherein in the liquid phase a1, a plurality of gas bubbles is generated; wherein the dehydration occurs at least partially in the liquid phase; wherein the superabsorbent polymer has a biodegradability determined according to the modified Sturm-test according to appendix V to Guideline 67/548/EEC after 28 days of at least 25%; and wherein the superabsorbent polymer has a sustainability factor of at least about 80%.