Sulphonated polymer resin and preparation thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6664340
SERIAL NO

10069300

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention relates to sulphonated polymer resins, particularly polymer resins with a sulphonated shell layer, and the preparation thereof. Resins according to the invention are prepared by sulphonating a polymer in a non-swollen state with substantially pure gaseous sulphur trioxide substantially in the shell layer of the polymer particles. The polymer to be sulphonated can be for example a styrene-DVB copolymer. The resins according to the invention can be used for example as chromatographic resins, ion-exchange resins and catalyst resins.

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Patent Owner(s)

Patent OwnerAddress
DANISCO FINLAND OY02150 ESPOO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heikkila, Heikki Espoo, FI 73 1322
Karki, Ari Kotka, FI 5 80
Mononen, Heikki Kyminlinna, FI 1 17
Paananen, Hannu Kantvik, FI 32 457
Paatero, Erkki Kauniainen, FI 14 58
Tiihonen, Jari Lappeenranta, FI 5 56

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