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AssigneeShell Oil Company
InventorsJames Gao Lee, Thomas Louis De Lellis, Edward James Denton, Kevin Dale Allen, Stefan Deiss, Klaus Mackensen
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Disclosed is a process for reducing the self-adhesiveness of polytrimethylene terephthalate pellets, which can be carried out in a continuous or batch manner comprising the steps of: a) introducing polytrimethylene terephthalate pellets having an intrinsic viscosity of at least about 0.4 dl/g into a conduit containing a liquid which is moving through the conduit, thereby causing the pellets to move through the conduit with the liquid; b) adjusting the temperature of the pellets and the liquid to a temperature of about 50 to about 95° C. for a time sufficient to induce a degree of crystallinity of at least about 35% in the pellets; and c) separating the pellets from the liquid.
A process for reducing the self-adhesiveness of polytrimethylene terephthalate pellets which comprises:
A process for classifying and cooling polymer pellets to below their glass transition temperature which comprises:
An apparatus for reducing the self-adhesiveness of polymer pellets which comprises:
Dependencies are inferred from the claim text.