Appeal No. 1997-3036 Application No. 08/268,094 R1 and R2 are as defined above, A is the radical of an aromatic bifunctional compound, n is an integer from 0 to 300, and L is a group of formula 4Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NextLast modified: November 3, 2007