| 摘要 |
A process of forming a non-woven web including spinning a plurality of continuous polymeric filaments from a polymeric component including a polycarbonate homopolymer component, a polycarbonate copolymer component, and combinations thereof; a polyetherimide component selected from polyetherimide homopolymers, polyetherimide copolymers, aromatic polyester homopolymers, aromatic polyester copolymers, and combinations; a polyetherimide component selected from polyetherimide homopolymers, polyetherimide copolymers, aromatic polyester homopolymers, aromatic polyester copolymers, and combinations thereof. The non-woven can be formed from continuous filaments or the filament can be chopped before forming the non-woven. Preferably, the spinning is conducted at a high rate of at least 300 grams/hour/spinneret. The continuous filaments have a diameter from 50 nanometers to 5 micrometers, preferably 50 nanometers to 2 micrometers, and a length to diameter ratio that is more than 1,000,000. |
