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US 7,459,520 B2Granted
Poly(arylene ether) and an apparatus for producing the same
AssigneeSabic Innovative Plastics IP B.V.
InventorHugo Gerard Eduard Ingelbrecht
Life of this patent
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Abstract
A poly(arylene ether) produced by combining a poly(arylene ether) solution with an antisolvent at a shear rate of greater than 50,000 sec−1. The high shear mixing conditions produce a poly(arylene ether) dispersion in which the poly(arylene ether) solid contains reduced amounts of undesirably fine particles.
Claims11
A poly(arylene ether) prepared by a method comprising:
- combining a poly(arylene ether) solution with an antisolvent to form a poly(arylene ether) dispersion comprising a poly(arylene ether) solid;
- wherein the poly(arylene ether) solution comprises a poly(arylene ether) and a solvent;
- and
- wherein said combining comprises mixing with a shear rate of greater than 50,000 sec−1 to about 500,000 sec−1.
1 more element
An apparatus for preparing a poly(arylene ether), comprising:
- means for preparing a poly(arylene ether) solution comprising a poly(arylene ether) and a solvent;
- means for combining the poly(arylene ether) solution and an antisolvent at a shear rate of greater than 50,000 sec−1 to form a poly(arylene ether) dispersion comprising a poly(arylene ether) solid;
- and
- means for separating the poly(arylene ether) solid from the poly(arylene ether) dispersion to form an isolated poly(arylene ether) solid.
1 more element
Dependencies are inferred from the claim text.