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US 2014/0235787 A1Published application
Polymeric materials
AssigneeVictrex Manufacturing Limited
InventorsCarlo Capra, Christoper Peter Tyler, Brian Wilson
Life of this patent
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Abstract
Polymers comprising polyetheretheretherketone and polyetherdiphenyletherketone and polymers comprising polyetheretheretherketone and polyetheretherethersulphone are described which have advantageous Tn and/or Tg properties.
Claims21
A polymeric material having a repeat unit of formula
- —X-Ph-(X-Ph-)nX-Ph-CO-Ph- I
- and a repeat unit of formula
- —X—Y—W-Ph-Z— II
- wherein Ph represents a phenyl moiety;
- each X independently represents an oxygen or sulphur atom;
- n represents an integer of 1 or 2;
- Y is selected from a phenyl moiety, a -Ph-Ph- moiety and a naphthalenyl moiety;
- W is a carbonyl group, an oxygen or sulphur atom, Z is selected from:
- —X-Ph-SO2-Ph-;
- —X-Ph-SO2-Y—SO2-Ph- and
- —CO-Ph-;
- said polymeric material having a Tm of less than 298° C.
9 more elements
A polymeric material having a repeat unit of formula:
- and a repeat unit of formula
- said polymeric material having a Tm of less than 298° C. and wherein said polymeric material includes at least 60 mole % of repeat units of Formula I, and less than 40 mole % of repeat units of Formula II.
Dependencies are inferred from the claim text.