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US 8,263,199 B2Granted
Polyimide tube, method for production thereof, method for production of polyimide varnish, and fixing belt
AssigneesSumitomo Electric Industries, Ltd., Sumitomo Electric Fine Polymer, Inc.
InventorsShingo Nakajima, Jun Sugawara, Akira Mizoguchi, Naoki Onmori, Yoshimasa Suzuki, Kazuhiro Kizawa, Yusuke Uchiba
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Abstract
A polyimide tube composed of a polyimide resin composition in which 5 to 23.5 volume percent of boron nitride and 1 to 15 volume percent of an acicular substance are dispersed as a filler in a polyimide resin on the basis of the total volume of the composition, a method of producing the tube, a method of producing a polyimide varnish used for producing the tube, and a fixing belt including the tube as a base member are provided.
Claims9
A polyimide tube comprising:
- a polyimide resin composition in which 5 to 23.5 volume percent of boron nitride and
- 1 to 15 volume percent of an acicular substance are dispersed as a filler in a polyimide resin on the basis of the total volume of the composition,
- wherein the polyimide resin composition is a composition in which the boron nitride and the acicular substance are dispersed in the polyimide resin in amounts by volume percent satisfying the relationship represented by formula (1):
- 15≦x+3y≦55 (1)
- wherein x represents the volume percent of the boron nitride, and y represents the volume percent of the acicular substance.
2 more elements
Dependencies are inferred from the claim text.