High temperature industrial fabrics
First Claim
1. A papermaker'"'"'s fabric having machine direction and cross machine direction threads interwoven with one another in a repeated pattern and finished into an endless belt with the threads of the belt being thermally set after weaving to stabilize the fabric, wherein certain of the threads are monofilaments of a melt extrudable polyaryletherketone selected from the group consisting of polyetherketones having repeating units of --φ
- --O--φ
--CO--, --φ
--O--φ
--CO-- and/or --φ
--O--φ
--CO--φ
--O--.
5 Assignments
0 Petitions
Accused Products
Abstract
An industrial fabric of woven monofilament threads comprised of a melt extrudable polyaryletherketone having improved high temperature resistance and hydrolysis resistance at elevated temperatures, such fabric exhibiting a high modulus of elongation making it particularly suitable for high temperature-high speed conveying applications in various industrial processing.
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Citations
21 Claims
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1. A papermaker'"'"'s fabric having machine direction and cross machine direction threads interwoven with one another in a repeated pattern and finished into an endless belt with the threads of the belt being thermally set after weaving to stabilize the fabric, wherein certain of the threads are monofilaments of a melt extrudable polyaryletherketone selected from the group consisting of polyetherketones having repeating units of --φ
- --O--φ
--CO--, --φ
--O--φ
--CO-- and/or --φ
--O--φ
--CO--φ
--O--.
- --O--φ
- 2. A papermaker'"'"'s dryer fabric comprised of machine direction and cross machine direction threads interwoven with one another in a repeated pattern and thermally set after weaving to stabilize the fabric with a fabric open area between the range of more than 10% but less than 40% of the total fabric area, wherein certain of said threads are monofilaments of a melt extrudable polyaryletherketone consisting essentially of polyetheretherketone having repeat units of --φ
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20. A papermaker'"'"'s dryer fabric having machine direction and cross machine direction threads interwoven with one another in a repeated pattern and finished into an endless belt with the threads of the belt being thermally set after weaving to stabilize the fabric, wherein certain of the threads are of polyetheretherketone having hydrolysis resistance of maintaining at least 90% of the initial tensile strength after exposure to moist heat of 260°
- F. at 20 pounds per square inch for at least 72 hours.
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21. A papermaker'"'"'s dryer fabric belt having machine direction and cross machine threads interwoven in a repeated pattern, wherein certain of the threads are of polyetheretherketone having repeating units essentially of --φ
- --O--φ
--CO--φ
--O.
- --O--φ
Specification