EP 0055728 A4 19820811 - HYDROPHILIC INTERPOLYMERS OF ACRYLIC ACID AND AN ACRYLATE.
Title (en)
HYDROPHILIC INTERPOLYMERS OF ACRYLIC ACID AND AN ACRYLATE.
Title (de)
HYDROPHILE INTERPOLYMERE AUS ACRYLSÄURE UND EINEM ACRYLAT.
Title (fr)
INTERPOLYMERES HYDROPHILES D'ACIDES ACRYLIQUES ET D'UN ACRYLATE.
Publication
Application
Priority
US 16693680 A 19800708
Abstract (en)
[origin: WO8200147A1] 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.
IPC 1-7
IPC 8 full level
A61L 15/60 (2006.01); C08F 20/00 (2006.01); C08F 220/04 (2006.01); C08F 220/06 (2006.01); C08F 220/10 (2006.01); C08F 220/56 (2006.01)
CPC (source: EP KR)
A61L 15/60 (2013.01 - EP); C08F 20/18 (2013.01 - KR); C08F 220/06 (2013.01 - EP)
C-Set (source: EP)
Designated contracting state (EPC)
CH DE FR GB NL SE
DOCDB simple family (publication)
WO 8200147 A1 19820121; BE 889553 A 19811103; BR 8108674 A 19820525; CA 1209524 A 19860812; DK 160259 B 19910218; DK 160259 C 19910722; DK 98082 A 19820305; EP 0055728 A1 19820714; EP 0055728 A4 19820811; ES 503685 A0 19821101; ES 8300804 A1 19821101; GR 75718 B 19840802; IT 1137264 B 19860903; IT 8122628 A0 19810629; JP S57500930 A 19820527; KR 830006364 A 19830924; MX 160466 A 19900308
DOCDB simple family (application)
US 8100764 W 19810608; BE 205351 A 19810708; BR 8108674 A 19810608; CA 379531 A 19810611; DK 98082 A 19820305; EP 81901866 A 19810608; ES 503685 A 19810703; GR 810165338 A 19810625; IT 2262881 A 19810629; JP 50226381 A 19810608; KR 810002426 A 19810703; MX 18820781 A 19810708