Patent · US Active

Perdeuterated polyimides, their process of preparation and their use as materials which are transparent within the region from 2500 to 3500 cm-1

US7501477B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Elsa Anselmi · Garches, FR
Jacques Raby · Grenoble, FR
Alexia Balland-Longeau · Tours, FR
Marc Calonne · Châtellerault, FR

Key dates

Filing date	Apr 5, 2007
Grant date	Mar 10, 2009
Priority date	—
Expiry date	Apr 5, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G73/1053
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a deuterated polyimide, the backbone of which comprises an alternation between: in which: These polyimides are used in particular as materials which are transparent within the region from 2500 to 3500 cm−1, for example in laser devices.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.