Appeal No. 1996-3729 Application No. 08/253,839 wherein the mole ratio of A:B:C units lies in range 100-50:0- 35:0-50, and wherein R comprises at least one divalent aliphatic radical having from 4 to 14 carbon atoms; 3Page: Previous 1 2 3 4 5 6 7 8 9 10 11 NextLast modified: November 3, 2007