Patent ID: 8445568
Filing Date: 2013-05-21
Classification: C08J,C08K,C08L

Abstract:
1. A thermoplastic resin composition, comprising: a transparent polycarbonate resin; an aromatic sulphonate; an aromatic sulphone sulphonate different from the aromatic sulphonate; and a brominated polycarbonate resin; wherein the composition, when in the form of a 3 mm thick extruded sheet, is transparent and has a smoke density of less than 200 at an exposure period of 240 seconds in accordance with the smoke density test as set forth in ASTM E662-06, and a burn length of less than 150 mm, a drip flame time of less than 3 seconds, and an overall flame time of less than 15 seconds in accordance with the flammability test as set forth in 14 C.F.R. 25.853, Appendix F, Part I(a)(1)(ii); and wherein the composition, when in the form of a 5 mm thick extruded sheet, has a haze of 0% to 6% as measured in accordance with ASTM D1003-00, Procedure A, illuminant C.