Back to results
US 10,538,622 B2Granted
Polymeric materials
AssigneeVictrex Manufacturing Limited
InventorsAdam Chaplin, Erin Bryce, Michael David Benstead, Michael Lewis Turner
Life of this patent
Estimating the term…
Abstract
Polyaryletherketones are produced which are end-capped with a phenylethynyl-containing moiety. The end-capped material, having a relatively low molecular weight, may be subjected to a thermal cycle to produce a higher molecular weight material having excellent mechanical properties, a relatively high level of crystallinity and acceptable Tm and Tg
Claims9
A polymeric material comprising repeat unit of formula I:
- wherein t1 and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2;
- wherein said polymeric material has a Reduced Viscosity (RV) of at least 0.6 dL/g:
- and
- wherein the polymeric material is end-capped with a phenylethynyl-containing moiety, wherein said polymeric material is
- a copolymer which includes a repeat unit or formula X
- and a repeat unit of formula XI
3 more elements
Dependencies are inferred from the claim text.