Polyamide/polyphenylene ether resin compositon
AssigneeAsahi Kasei Chemicals Corporation
InventorTakaaki Miyoshi
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Abstract
The present invention provides a thermoplastic resin composition obtained by feeding to an extruder and melt-kneading a polyamide; a polyphenylene ether; and a hydrogenated block copolymer (having a packed bulk density of from 0.15 to 0.25 g/cm3) prepared by hydrogenating a block copolymer comprising at least one polymer block mainly composed of an aromatic vinyl compound and at least one polymer block mainly composed of a conjugated diene compound.
Claims20
A thermoplastic resin composition obtained by feeding to an extruder and melt-kneading a polyamide;
- a polyphenylene ether;
- and a hydrogenated block copolymer prepared by hydrogenating a block copolymer comprising at least one polymer block mainly composed of an aromatic vinyl compound and at least one polymer block mainly composed of a conjugated diene compound, wherein said hydrogenated block copolymer to be fed to the extruder has a packed bulk density of from 0.15 to 0.25 g/cm3.
A method for producing a thermoplastic resin composition, comprising feeding to a biaxial extruder and melt-kneading a polyamide;
- a polyphenylene ether;
- and a hydrogenated block copolymer prepared by hydrogenating a block copolymer comprising at least one polymer block mainly composed of an aromatic vinyl compound and at least one polymer block mainly composed of a conjugated diene compound, wherein in said extruder the resin discharge rate per the third power of the screw diameter represented by the formula:
- R=Q/D3
- wherein D denotes the screw diameter [cm];
- Q denotes the resin discharge rate of the extruder [kg/hr];
- and R denotes the resin discharge rate per the third power of the screw diameter [kg/cm3·hr],
- is in the range of from 1.7 to 5.0.
Dependencies are inferred from the claim text.