Hydrophilic interpolymers of acrylic acid and acrylate

Details Hydrophilic interpolymers of acrylic acid and acrylate Hydrophilic interpolymers of acrylic acid and acrylate

C - Chemistry, Metallurgy

08

F

252/31, 204/91.6

C08F 220/06 (2006.01) A61L 15/60 (2006.01)

Patent

CA 1209524

ABSTRACT OF THE DISCLOSURE Highly water absorbent polymers are obtained by polymerizing 65 to 95 weight percent of acrylic acid and 5 to 35 weight percent of a comonomer selected from an alkyl or a cyclohexyl methacrylate, phenyl acrylate, phenoxyalkyl acrylate and dialkylaminoalkyl acrylate or methacrylate. The polymerization can be carried out in the presence of a free radical catalyst in which case the polymer is then preferably neutralized with a base. Alternatively, carboxylic groups are neutralized first and then polymerized by subjecting the monomer mixture either to radiation or to UV light.

379531

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