Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2002-10-29
2010-02-16
Jiang, Shaojia Anna (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S123100, C536S055200, C536S001110, C514S054000
Reexamination Certificate
active
07662954
ABSTRACT:
An outer layer having an entanglement comprising an intermingling of cloaked hydrophilic guest and a hydrophobic polymer host, wherein molecules of the guest have been crosslinked with each other. Under certain circumstances, using complexes of the guest may be desirable or even necessary. The intermingling of the guest and host includes a physical tangling, whether it also comprises crosslinking by primary bonding (e.g., chemical/covalent bonding) there-between. Also a method of producing an outer layer having such an entanglement, including the steps of: temporarily cloaking at least a portion of the hydrophilic groups of the guest; intermingling at least a portion of the cloaked groups with a porous polymeric structure by diffusing the guest with cloaked groups into at least a portion of the structure's pores; within the pores, crosslinking at least a portion of the molecules of the guest with the guest; and removing the cloaking. Cloaking may be performed by silylation or acylation. Intermingling may be performed by producing a mixture of guest and host (whether in solution, powdered, granular, etc., form); next, a crosslinking of the guest with itself is performed; then, the mixture is molded into the outer layer.
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Beauregard, Guy P., James, Susan P., “Synthesis and Characterization of Novel UHNWPE Interpenetrating Polymer Network” Biomedical Sciences Instrumentation, vol. 35, Instrument Society of America, Research Triangle Park, NC, 1999, also presented at the 36th Annual Rocky Mountain Bioengineering Symposium, Copper Mountain, CO, Apr. 16-18, 1999.
Beauregard Guy
James Susan P.
Zhang Min
Colorado State University Research Foundation
Gonsalves, Esq. Andrew K.
Henry Michael C
Heslin Rothenberg Farley & & Mesiti P.C.
Jiang Shaojia Anna
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