Polymeric materials

Abstract

Polymeric Materials Manufacture of items such as seal-rings, scrolls for scroll compressors and microchip trays from polymeric materials such as polyaryletherketones, may be undertaken to minimise the risk that the shape and/or dimensions of such items may detrimentally change in use when subjected to heat and/or stress. Manufacture involves forming a component from a polymeric material under conditions which seek to limit the degree of crystallinity generated; constraining the component to the desired shape, for example using a jig; and, with the component constrained, heating the component to a sufficiently high temperature to increase, as much as possible, the level of crystallinity in the component.

Dependencies are inferred from the claim text.