Hydroabsorbent resins, production method and application thereof for obtaining articles capable of absorbing aqueous fluids
AssigneeSociete Chimique des Charbonnages S.A.
InventorsClaude-Lise Cretenot, Bernard Wiegert
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Abstract
Water-absorbing resin based on acrylic acid and on dialkylaminoalkyl acrylate. It comprises from 40 to 60% on a molar basis of acrylic acid, at least partially in salt form if appropriate, and from 60 to 40% on a molar basis of at least one dialkylaminoalkyl acrylate, at least partially in salt form or quaternized if appropriate. It is manufactured by copolymerization either in aqueous solution or in an inverse emulsion, in the presence of at least one free-radical generator. Application to the production of articles capable of absorbing aqueous liquids.
Claims6
Water-absorbing resin having a high capacity for absorbing and retaining pure or saline water
- comprising from 40 to 60% on a molar basis of acrylic acid and from 60 to 40% on a molar basis of at least one dialkylaminoalkyl acrylate in which each alkyl group contains from 1 to 4 carbon atoms.
Dependencies are inferred from the claim text.