Patent ID: 8309637
Filing Date: 2012-11-13
Classification: C08G,C08J,C08L,Y10T

Abstract:
1. A composition having at least one property selected from the group consisting of a time to peak heat release of more than 150 seconds, as measured by FAR 25.853 (OSU test); a peak heat release less than or equal to 35 kW/m2 as measured by FAR 25.853 (OSU test); an NBS (National Bureau of Standards) optical smoke density with flame of less than 5 when measured at four (4) minutes, based on ASTM E-662 (FAR/JAR 25.853); a toxic gas release of less than or equal to 100 ppm based on Draeger Tube Toxicity test (Airbus ABD0031, Boeing BSS 7239); and combinations thereof; the composition comprising: (a) from 15 to 85 percent by weight of a polyetherimide (PEI), (b) from 15 to 85 percent by weight of a polyphenylsulfone (PPSU), (c) a silicone copolymer is present in an amount up to 12 percent by weight, and (d) from 0 to 0.30 percent by weight of a stabilizer, wherein an article made from the composition exhibits at least one property selected from the group consisting of the following properties: a time to peak heat release of more than 150 seconds, as measured by FAR 25.853 (OSU test); a peak heat release less than or equal to 35 kW/m an NBS (National Bureau of Standards) optical smoke density with flame of less than 5 when measured at four minutes, based on ASTM E-662 (FAR/JAR 25.853); a toxic gas release of less than or equal to 100 ppm based on Draeger Tube Toxicity test (Airbus ABD0031, Boeing BSS 7239); and combinations thereof.