Patent ID: 7459217
Filing Date: 2008-12-02
Classification: B32B,C08J,C09J,C09K,H01B,H05K,Y10T

Abstract:
1. A flame-retardant polyester film comprising resin layers laminated on both surfaces of a polyester film, wherein each of the resin layers satisfies the following Formula (1) and has non-flammable gas generating rate of 3 to 40 percent over the range of 180° C. to 450° C.: where Wc each of the resin layers comprises polyimide and 30 to 65 percent by weight aluminum hydroxide based on weight of the resin layer; and wherein 70 to 100 percent of the total structural units of the polyimide are structural units represented by the following Formula (III); in Formula (III), R′ represents at least one group selected from groups represented by the following Formula (IV); in Formula (IV), Y represents at least one group selected from the groups represented by the following Formula (V);