US 7,585,984 B2
Perdeuterated polyimides, their process of preparation and their use as materials which are transparent within the region from 2500 to 3500 cm-1
Elsa Anselmi, Garches (France); Jacques Raby, Grenoble (France); Alexia Balland-Longeau, Tours (France); and Marc Calonne, Drache (France)
Assigned to Commissariat a l'Energie Atomique, Paris (France)
Filed on Apr. 05, 2007, as Appl. No. 11/784,059.
Application 11/784059 is a division of application No. 10/527630, granted, now 7,211,632, previously published as PCT/FR2004/050145, filed on Apr. 06, 2004.
Claims priority of application No. 03 50090 (FR), filed on Apr. 08, 2003.
Prior Publication US 2007/0185283 A1, Aug. 09, 2007
Int. Cl. C07D 495/04 (2006.01)
U.S. Cl. 549—241  [549/242] 3 Claims
 
1. A deuterated dianhydride monomer corresponding to the following formula (V):

OG Complex Work Unit Drawing
in which Y is a single bond, —O—, —CD2—, —CO—, —SO2— or —C6D4—.