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:
Jun. 19, 2007
Filed:
Feb. 04, 2003
Shuit-tong Lee, Hong Kong, CN;
Chun-sing Lee, Hong Kong, CN;
Peng-fei Wang, Hong Kong, CN;
Bao-xiu MI, Hong Kong, CN;
Shuit-Tong Lee, Hong Kong, CN;
Chun-Sing Lee, Hong Kong, CN;
Peng-Fei Wang, Hong Kong, CN;
Bao-Xiu Mi, Hong Kong, CN;
Cityu Research Limited, Kowloon, Hong Kong, CN;
Abstract
A compound of formula [I]:X—R[I]wherein X represents the group: and R is either (i) represented by the formula [II] wherein n is 1 or 2, and the or each Rgroup is independently selected from the group consisting of hydrogen and halogen atoms, cyano, nitro, mercapto, carbonyl and sulfone groups, and optionally substituted alkyl, haloalkyl, hydroxyalkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino, alkylthio, arylthio, ester, siloxy, cyclic hydrocarbon and heterocyclic groups;or (ii) is selected from the group consisting of optionally substituted alkyl, hydroxyalkyl, aryl, cyclic hydrocarbon and heterocyclic groups;wherein in each case R–Rare each independently selected from the group consisting of hydrogen and halogen atoms, cyano, nitro, mercapto, carbonyl and sulfone groups, and optionally substituted alkyl, haloalkyl, hydroxyalkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino, alkylthio, arylthio, ester, siloxy, cyclic hydrocarbon and heterocyclic groups. The compounds are useful as hole-transporting materials in electroluminescence devices.