Composite material
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United States of America Patent
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Dec 22, 2015
Grant Date -
Dec 5, 2013
app pub date -
Feb 1, 2012
filing date -
Feb 3, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A porous formed composite material comprising: (i) a polymer, or a mixture thereof, said polymer having immobilised therein (ii) an insoluble sorbent material selected from the group consisting of: (a) a cross-linked vinyl lactam homopolymer or copolymer, said vinyl lactam homopolymer or copolymer being optionally mixed with silica gel; and (b) polyvinyl lactam-modified silica gel; is described. Solid phase extraction apparatus incorporating the material and its use in removing polyphenols and/or proteins from beverages to prevent the formation of haze in beverages are also described.
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