FLUORINE RESIN TUBULAR ARTICLE, FIXING ROLL, FIXING BELT AND IMAGE FIXING APPARATUS
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United States of America Patent
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Issued Date -
Jul 13, 2006
app pub date -
Jul 2, 2004
filing date -
Jul 2, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention is tubular article comprising a polytetrafluoroethylene-based fluorine resin as a constitutional element, wherein the article has a maximum wall thickness of 20 .mu.m or smaller, and satisfies the following (1) and/or (2) properties. (1) Tensile elastic moduli in a circumferential direction and a tube axial direction are both 900 N/mm.sup.2 or more. (2) Tensile stresses at 5% elongation in a circumferential direction and a tube axial direction are both N/mm.sup.2 or greater. When this fluorine resin tubular article is used as a superficial layer of a fixing roll or a fixing belt, excellent durability can be exerted.
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