Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Reexamination Certificate
2005-11-29
2009-08-11
Chang, Victor S (Department: 1794)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
C428S315900, C428S318400, C428S319300
Reexamination Certificate
active
07572502
ABSTRACT:
The invention provides an ultrathin high-strength flexible sheet that has exceptional appearance, surface smoothness, and feel; and that presents no risk of rubber residues forming even in the case of degradation. An ultrathin flexible sheet is formed from an elastomer composite in which the pores of a porous film (e.g., a film made from stretched porous polytetrafluoroethylene) are filled with an elastomer, and the elastomer layer that covers the surface of the porous film is one micron or less in thickness. Examples of elastomers that may be employed include silicone-based elastomers (e.g., a methyl silicone-based elastomer and a phenyl silicone-based elastomer) and fluorine-based elastomers (e.g., a fluorosilicone elastomer, a fluoroelastomer, and a perfluoroelastomer). It is recommended that part of the surface of the porous film be left exposed. The ultrathin flexible sheet can be made 50 μm or less in thickness.
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Japanese Standards Association, JIS K 6251, 2004, pp. 1 through 20 (Translation), Date: Mar. 22, 2004.
Japanese Standards Association, JIS B 7609, pp. 1 through 21 (Translation), Date: Jul. 20, 2000.
Chang Victor S
Ellis Richard W.
Gore Enterprise Holdings Inc.
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