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US 6,737,165 B1Granted
Melt-processible poly(tetrafluoroethylene)
AssigneeOmlidon Technologies LLC
InventorsPaul Smith, Jeroen F. Visjager, Cees Bastiaansen, Theodorus Tervoort
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Abstract
Melt-processible, thermoplastic poly(tetrafluoroethylene) (PTFE) compositions are disclosed and methods for making and processing same. Additionally, products comprising these compositions are described.
Claims71
A poly(tetrafluoroethylene) polymer having:
- (i) a melt flow index greater than 0.25 g/10 min;
- (ii) a stress at break of greater than 15 MPa;
- and
- (iii) less than 0.5 mol percent of co-monomer.
1 more element
A poly(tetrafluoroethylene) polymer having:
- (i) a melt flow index greater than 0.25 g/10 min;
- (ii) an elongation at break of greater than 250%;
- and
- (iii) less than 0.5 mol percent of co-monomer.
1 more element
A poly(tetrafluoroethylene) polymer having:
- (i) a stress at break of at least 15 MPa;
- (ii) a plateau value of the complex viscosity of less than about 5.107 Pa.s;
- and
- (iii) less than 0.5 mole percent co-monomer.
1 more element
A poly(tetrafluoroethylene) polymer having:
- (i) a non-zero melt flow index;
- and
- (ii) a stress at break of greater than 15 MPa;
- wherein said poly(tetrafluoroethylene) polymer comprises a perfluoro(alkyl vinylether) co-monomer, said co-monomer being present in an amount of less than 0.5 mol %.
1 more element
Dependencies are inferred from the claim text.