Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Reexamination Certificate
2007-07-24
2007-07-24
Cole, Elizabeth M. (Department: 1771)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
C428S304400, C210S767000
Reexamination Certificate
active
10484059
ABSTRACT:
The invention provides asymmetric membranes composed of a microporous substrate whose pores contain a crosslinked gel, the density of the crosslinked gel being greater at or adjacent to one major surface of the membrane than the density at the other major surface. The membranes are useful for separating matter from liquids and display good flux and good rejection at low pressure.
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Childs Ronald F.
Ge Jijun
McCrory Chris
Mika Alicja M.
Christie Parker & Hale LLP
Cole Elizabeth M.
Desai Anish P
McMaster University
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