Crosslinked polyvinyl alcohol-based polymer membrane and a...

Liquid purification or separation – Filter – Material

Reexamination Certificate

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C210S500340, C210S500230, C210S490000, C210S500270, C264S041000, C428S310500

Reexamination Certificate

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07449112

ABSTRACT:
A novel polyvinyl alcohol-based polymer membrane is disclosed. The novel polyvinyl alcohol-based polymer membrane of the present invention comprises two different compounds which are crosslinked by irradiating light such as UV or electronic beams or heat treatment to form a covalent bond between double bonds thereby providing improved properties such as chemical resistance and durability. This invention also relates to a process its preparation.

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