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Machine translation
1. (WO1982000147) HYDROPHILIC INTERPOLYMERS OF ACRYLIC ACID AND AN ACRYLATE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1982/000147    International Application No.:    PCT/US1981/000764
Publication Date: 21.01.1982 International Filing Date: 08.06.1981
IPC:
A61L 15/60 (2006.01), C08F 220/06 (2006.01)
Applicants: THE B.F. GOODRICH COMPANY
Inventors:
Priority Data:
Title (EN) HYDROPHILIC INTERPOLYMERS OF ACRYLIC ACID AND AN ACRYLATE
(FR) INTERPOLYMERES HYDROPHILES D'ACIDES ACRYLIQUES ET D'UN ACRYLATE
Abstract: front page image
(EN)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.
(FR)Des polymeres ayant un taux d'absorption d'eau eleve sont obtenus en polymerisant entre 65 et 95% en poids d'acide acrylique et entre 5 et 35% en poids d'un comonomere selectionne parmi un alkyle ou un methacrylate de cyclohexyle, un acrylate de phenyle, un acrylate de phenoxyalkyle et un acrylate ou methacrylate de dialkylaminoalkyle. La polymerisation peut s'effectuer en presence d'un catalyseur a radical libre, et dans ce cas le polymere est alors de preference neutralise avec une base. Une variante consiste a neutraliser d'abord et polymeriser ensuite des groupes carboxyliques en soumettant le melange monomere soit a une radiation soit a la lumiere ultraviolette.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)