| abstract |
A shaped article, such as film or fiber, of an aromatic polyamide is provided. The shaped article is prepared by incorporating in an aromatic polyamide 0.5-30 wt. %, based on the aromatic polyamide, of a silicone compound such as a compound of the formula: X'Si(OR') 3 (wherein R' is alkyl and X' is an organic functional group), and then, treating the resulting polymer composition with heat, ultraviolet rays and/or electron beams. in addition to the silicone compound, a minor amount of a specified crosslinking compound may be incorporated in the aromatic polyamide. The shaped article exhibits improved heat resistance, electric characteristics and dimentional stability. |