Polytetrafluoroethylene resin
First Claim
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1. A stretchable, fibrillatable, non-melt-fabricable polytetrafluoroethylene resin having standard specific gravity of no more than 2.160, rheometer pressure of at least 25 MPa, stress relaxation time of at least 650 seconds, and break strength of at least 3.0 kilogram force.
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Abstract
Stretchable polytetrafluoroethylene resin has high break strength and/or low creep rate.
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Citations
9 Claims
- 1. A stretchable, fibrillatable, non-melt-fabricable polytetrafluoroethylene resin having standard specific gravity of no more than 2.160, rheometer pressure of at least 25 MPa, stress relaxation time of at least 650 seconds, and break strength of at least 3.0 kilogram force.
Specification