Granular-type modified polytetrafluoroethylene dispersions and fused articles prepared therefrom
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Feb 1, 2000
Grant Date -
N/A
app pub date -
Jan 19, 1999
filing date -
Mar 30, 1996
priority date (Note) -
Expired
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Abstract
An aqueous dispersion of modified granular PTFE particles is sprayed or cast to form a sheet. The sheet is then dried and the modified granular particles fused together to form an open network of fused interconnected particles that define a tortuous network of voids through the sheet. It has been found that when the modified granular-type PTPE aqueous dispersions are employed, the resulting fused sheets are stronger than when the usual unmodified PTFE homopolymer of the granular-type is used.
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