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US 8,911,695 B2Granted
Preparation of chitosan-based microporous composite material and its applications
AssigneePerma-Fix Environmental Services, Inc.
InventorShameem Hasan
Life of this patent
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Abstract
Microporous glutaraldehyde-crosslinked chitosan sorbents, methods of making and using them, and a generator for the radioisotope 99Mo containing the sorbents.
Claims20
A sorbent comprising a microporous material comprising chitosan which has been crosslinked with glutaraldehyde in the presence of a catalyst to a glutaraldehyde concentration of about 2 to about 4 wt %, which is resistant to degradation from exposure to beta and gamma radiation and from exposure to acids, and which has been at least partially oxidized after crosslinking.
Dependencies are inferred from the claim text.