Capping of polyphenylene ether resin
AssigneeGeneral Electric Company
InventorsAdrianus J. F. M. Braat, Adrie Landa, Juraj Liska
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Abstract
The invention relates to methods of capping poly(phenylene ether) resin having an intrinsic viscosity between 0.05 and 0.35 dl/g. More particularly, the methods comprise capping a poly(phenylene ether) resin having an intrinsic viscosity between 0.05 and 0.35 dl/g in a solvent to produce a capped poly(phenylene ether) resin having an intrinsic viscosity between 0.05 and 0.35 dl/g and isolating the capped poly(phenylene ether) resin by removal of the solvent, preferably in a process other than precipitation. The invention also relates to the capped poly(phenylene ether) resin having an intrinsic viscosity between 0.05 and 0.35 dl/g.
Claims17
A method to prepare a capped polyphenylene ether resin comprising capping a poly(phenylene ether) resin having an intrinsic viscosity between 0.05 and 0.35 dl/g with a capping agent in a solvent, wherein the capping agent is selected from at least one ester of salicylic acid or anthranilic acid or a substituted derivative of at least one of the foregoing, to produce a capped poly(phenylene ether) resin having an intrinsic viscosity between 0.07 and 0.24 dl/g and isolating the capped poly(phenylene ether) resin.
Dependencies are inferred from the claim text.