WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2001081352) PHOTOCHROMATIC PYRANO-1,3-OXAZINONAPHTHALENE DERIVATIVES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2001/081352    International Application No.:    PCT/EP2001/004451
Publication Date: 01.11.2001 International Filing Date: 19.04.2001
Chapter 2 Demand Filed:    13.08.2001    
IPC:
C07D 498/04 (2006.01), C07D 498/10 (2006.01), C07F 7/18 (2006.01), C08K 5/357 (2006.01), G03C 1/73 (2006.01)
Applicants: GREAT LAKES CHEMICAL (EUROPE) GMBH [CH/CH]; Bahnhofplatz 65 CH-8500 Frauenfeld (CH) (For All Designated States Except US).
GIROLDINI, William [IT/IT]; (IT) (For US Only).
CRISCI, Luciana [IT/IT]; (IT) (For US Only).
MALATESTA, Vincenzo [IT/IT]; (IT) (For US Only)
Inventors: GIROLDINI, William; (IT).
CRISCI, Luciana; (IT).
MALATESTA, Vincenzo; (IT)
Agent: DE GREGORI, Antonella; Ing. Barzanò & Zanardo Milano S.p.A. Via Borgonuovo, 10 I-20121 Milan (IT)
Priority Data:
MI2000A000885 20.04.2000 IT
Title (EN) PHOTOCHROMATIC PYRANO-1,3-OXAZINONAPHTHALENE DERIVATIVES
(FR) DERIVES PHOTOCHROMATIQUES DE PYRANO-1,3-OXAZINONAPHTHALENE
Abstract: front page image
(EN)Photochromatic compounds belonging to the groups of chromenes and spiro-pyrans having general formula (I).
(FR)Cette invention concerne des composés photochromatiques qui appartiennent aux groupes des chromènes et des spiro-pyranes et qui sont représentés par la formule générale (I).
Designated States: CA, KR, US.
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR).
Publication Language: English (EN)
Filing Language: English (EN)