The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2006
Filed:
May. 30, 2002
Applicants:
Sandrine Lamarque, Magny les Hameaux, FR;
Jean-claude Dubois, Magny les Hameaux, FR;
Didier Gallaire, Orsay, FR;
Inventors:
Sandrine Lamarque, Magny les Hameaux, FR;
Jean-Claude Dubois, Magny les Hameaux, FR;
Didier Gallaire, Orsay, FR;
Assignee:
Nemoptic, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/10 (2006.01); C08G 69/28 (2006.01); B05D 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to novel polyimides derived from 6FDA and from 3,3-dihydroxy-4,4'-diaminobiphenyl and novel polyimides derived from PMDA and from Bis-AP-AF, having alkyl, arylalkyl, heteroarylalkyl, (cycloalkyl)alkyl, fluoroalkyl or siloxane side groups. The present invention also relates to a method of producing nematic liquid-crystal devices, which comprises the steps consisting in: