Method of making poly(arylene ether) compositions
View Patent ↗A method of making a thermoplastic composition comprises melt extruding a poly(arylene ether) powder to form a first pelletized poly(arylene ether); and melt extruding the first pelletized poly(arylene ether) to form a second pelletized poly(arylene ether), wherein the second pelletized poly(arylene ether) has a level of butyraldehyde less than the first pelletized poly(arylene ether) and the second pelletized poly(arylene ether) has a level of trimethylanisole less than the first pelletized poly(arylene ether).
1. A method of making a thermoplastic composition comprising melt extruding a poly(arylene ether) powder to form a first pelletized poly(arylene ether); and melt extruding the first pelletized poly(arylene ether) to form a second pelletized poly(arylene ether), wherein the second pelletized poly(arylene ether) has a level of butyraldehyde less than the first pelletized poly(arylene ether) and the second pelletized poly(arylene ether) has a level of trimethylanisole less than the first pelletized poly(arylene ether).
2. The method of claim 1 , wherein the second pelletized poly(arylene ether) comprises less than or equal to about 800 parts per million by weight butyraldehyde based on the total weight of the poly(arylene ether), and less than or equal to about 30 parts per million by weight trimethylanisole based on the total weight of the poly(arylene ether), or a combination thereof.
3. The method of claim 1 , wherein the second pelletized poly(arylene ether) comprises an additional thermoplastic.
4. The method of claim 3 , wherein the additional thermoplastic comprises rubber modified polystyrene.
5. The method of claim 1 , wherein the additional thermoplastic comprises an impact modifier.
6. The method of claim 1 , wherein the additional thermoplastic comprises a polyolefin.
7. The method of claim 1 , wherein the additional thermoplastic comprises a polyamide.
8. A thermoplastic composition produced by a method comprising melt extruding a poly(arylene ether) powder to form a first pelletized poly(arylene ether); and melt extruding the first pelletized poly(arylene ether) to form a second pelletized poly(arylene ether), wherein the second pelletized poly(arylene ether) has a level of butyraldehyde less than the first pelletized poly(arylene ether) and the second pelletized poly(arylene ether) has a level of trimethylanisole less than the first pelletized poly(arylene ether).
9. The thermoplastic composition of claim 8 , wherein the second pelletized poly(arylene ether) comprises less than or equal to about 800 parts per million by weight butyraldehyde based on the total weight of the poly(arylene ether), and less than or equal to about 30 parts per million by weight trimethylanisole based on the total weight of the poly(arylene ether), or a combination thereof.