Coating processes – Coating by vapor – gas – or smoke
Reexamination Certificate
2006-12-21
2011-10-18
Meeks, Timothy (Department: 1715)
Coating processes
Coating by vapor, gas, or smoke
C264S171100
Reexamination Certificate
active
08039050
ABSTRACT:
A process is provided for strengthening a porous substrate. The process includes providing a substrate having intersecting fibers, where the intersecting fibers cooperate in the final substrate product to form an open pore network. Pathways are opened into the fibrous substrate structure, which enable a flow of gas into the or through the substrate. The substrate is positioned in a CVD (chemical vapor deposition) station, and one or more layers of a strengthening agent is deposited. The deposited layer or layers form a strong coating around fibers and fiber intersections to provide additional strength to the substrate. The strengthened substrate may then be used in wide variety of applications and fields. Advantageously, the disclosed fiber strengthening process produces a substrate having high porosity and higher strength characteristics as compared to a non-strengthened substrate.
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GEO2 Technologies, Inc.
Meeks Timothy
Miller, Jr. Joseph
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