Flow in reinforced polyimide compositions
AssigneeSabic Global Technologies B.V.
InventorsChandrashekhar Lingannaiah, Anton Kumanan, Reema Sinha, Anirban Ganguly, Susanta Mitra, Anne Bolvari, Zheng Yun
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AssigneeSabic Global Technologies B.V.
InventorsChandrashekhar Lingannaiah, Anton Kumanan, Reema Sinha, Anirban Ganguly, Susanta Mitra, Anne Bolvari, Zheng Yun
Estimating the term…
Reinforced polyimide compositions that include a reinforcing filler and a polyamide flow promoter improve flow promotion while maintaining other mechanical, thermal, flame and/or electrical properties of the compositions. The compositions may include an inorganic or organic reinforcing filler, a polyimide resin such as polyetherimide or polyamideimide and a small amount of an aromatic or aliphatic polyamide as the flow promoter. The resulting compositions may be used in thinner-wall applications while still retaining the advantageous physical properties of reinforced polyimide compositions not having the flow promoter. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
A reinforced polyimide composition comprising:
A reinforced polyimide composition comprising:
A method of increasing linear flow during injection molding of a reinforced polyimide composition, the method comprising combining a polyimide base resin, a reinforcing filler, and a polyamide flow promoter;
A method of restoring injection molding linear flow loss in a reinforced polyimide composition, the method comprising adding, to a mixture of polyimide base resin and a reinforcing filler, a polyamide flow promoter in an amount sufficient to restore at least about 10% of flow loss observed when comparing injection molding linear flow rate of a reference reinforced polyimide composition consisting essentially of substantially the same proportions of the same polyimide base resin and the same reinforcing filler, in the absence of polyamide flow promoter, under substantially identical injection molding conditions, to injection molding linear flow rate of a substantially identical unfilled reinforced polyimide, in the absence of polyamide flow promoter, under substantially identical injection molding conditions;
Dependencies are inferred from the claim text.