Poly(arylene ether)/polyamide composition
AssigneeGeneral Electric Company
InventorsMark D. Elkovitch, James Ross Fishburn
Life of this patent
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Abstract
A composition comprises an impact modifier and a compatibilized blend of a poly(arylene ether) and an aliphatic-aromatic polyamide. The polyamide is composed of dicarboxylic acid units comprising 60 to 100 mol % of terephthalic acid units and diamine units comprising 60 to 100 mol % of 1,9-nonanediamine units and/or 2-methyl-1,8-octanediamine units. The aliphatic-aromatic polyamide has a melt viscosity greater than or equal to 2000 Pa-s at a shear of 1000 second−1 and a temperature of 330° C. and the composition has a melt viscosity greater than or equal to 160 Pascal seconds (Pa-s) at a shear of 1500 second−1 (s−1) and a temperature of 330° C.
Claims16
A composition comprising:
- an impact modifier;
- and
- a compatibilized blend of a poly(arylene ether) and an aliphatic-aromatic polyamide wherein, prior to forming the compatibilized blend, the aliphatic-aromatic polyamide has an amine end group content greater than 45 micromoles per gram of polyamide and the aliphatic-aromatic polyamide comprises
- units derived from a dicarboxylic acid wherein 60 to 100 mol % of units derived from a dicarboxylic acid are derived from terephthalic acid, and
- units derived from a diamine wherein 60 to 100 mol % of the units derived from a diamine are derived from 1,9-nonanediamine 2-methyl-1,8-octanediamine or a combination of 1,9-nonanediamine and 2-methyl-1,8-octanediamine
- and further wherein the aliphatic-aromatic polyamide has a melt viscosity greater than or equal to 200 Pascal seconds at a shear of 1000 second−1 and a temperature of 330° C. and the composition has a melt viscosity of 160 to 350 Pascal seconds at a shear of 1500 second−1 (s−1) and a temperature of 330° C.
Dependencies are inferred from the claim text.