Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Reexamination Certificate
2006-08-22
2006-08-22
Vo, Hai (Department: 1771)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
C428S319700, C428S319900, C436S169000, C436S164000, C422S051000, C422S051000, C422S068100, C073S864720
Reexamination Certificate
active
07094464
ABSTRACT:
Multi-layer coated materials and methods of making them are disclosed. In a specific embodiment, a porous polymeric substrate is pre-activated and immersed in a polyelectrolyte solution to form a first layer having an electric charge and at least one functional group. The coated material is next immersed in a second solution of a material having an electric charge opposite of that of the first layer to provide a bi-layer coating. This process can be repeated to form multi-layer coatings on porous substrates.
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Greene, IV George
Mao Guoqiang
Yao Li
Kilpatrick & Stockton LLP
McDonald John
Porex Corporation
Vo Hai
Wimbish J. Clinton
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