Flow in reinforced polyimide compositions

摘要

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.

主权项

1. A reinforced polyimide composition comprising:
(a) from about 10 wt % to 60 wt % of a reinforcing filler; (b) from about 1 wt % to about 10 wt % of a polyamide flow promoter; and (c) weight % balance of a polyimide base resin; wherein the polyimide base resin has a general formula of wherein a is greater than or equal to about 1000, V comprises a tetravalent linker, and R comprises a substituted divalent organic radical or an unsubstituted divalent organic radical, or a combination thereof.