SWELLABLE COMPOSITIONS

Water-swellable compositions, dispersions and hydrophilic cross-linked polymer microparticles for their preparation as well as their manufactures and uses are described. The polymer microparticles are formed from a monomer blend comprising sulphonic monomer, nonionic monomer and optionally other mon...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BUTTERS MARTIN, NORMINGTON DAVID, FLEETWOOD CAMERON, LOEHNER BEATRIX
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Water-swellable compositions, dispersions and hydrophilic cross-linked polymer microparticles for their preparation as well as their manufactures and uses are described. The polymer microparticles are formed from a monomer blend comprising sulphonic monomer, nonionic monomer and optionally other monomers and have a volume mean average size of below 20 microns. The compositions are useful in applications, such as seals and other water blocking applications.