Title:
PHOTOCHROMIC DIARYL-3H-NAPHTHOPYRANES
Document Type and Number:
WIPO Patent Application WO1997015565
Kind Code:
A3
Abstract:
PCT No. PCT/DE96/02049 Sec. 371 Date Feb. 2, 1998 Sec. 102(e) Date Feb. 2, 1998 PCT Filed Oct. 28, 1996 PCT Pub. No. WO97/15565 PCT Pub. Date May 1, 1997Disclosed is a photochromic compound having a diaryl-3H-napthopyran structure, which has at the 8-position a nitrogen atom-linked hetercyclus, in which the heterocylcus can also have a HALS compound as a substituent or the heterocyclus itself can be formed as a HALS compound. Furthermore a photochromic compound is described having a diaryl-3H-naphtopyran structure which has at the 8-position an N-atom linked and an alkyl-bridge linked HALS compound.
Inventors:
ZINNER HERBERT (DE)
MELZIG MANFRED (DE)
MELZIG MANFRED (DE)
Application Number:
PCT/DE1996/002049
Publication Date:
June 12, 1997
Filing Date:
October 28, 1996
Export Citation:
Assignee:
RODENSTOCK OPTIK G (DE)
ZINNER HERBERT (DE)
MELZIG MANFRED (DE)
ZINNER HERBERT (DE)
MELZIG MANFRED (DE)
International Classes:
C07D311/92; C07D405/04; C07D407/04; C07D409/04; C08K5/15; C09K9/00; C09K9/02; G03C1/73; (IPC1-7): C07D311/92; C07D405/04; C07D407/04; C07D409/04; C08K5/15; C09K9/00
Foreign References:
| EP0629620A1 | 1994-12-21 |
Other References:
CHEMICAL ABSTRACTS, vol. 125, no. 27, 1996, Columbus, Ohio, US; abstract no. 195434z, page 1187; XP002029614
CHEMICAL ABSTRACTS, vol. 125, no. 27, 1996, Columbus, Ohio, US; abstract no. 221584v, page 1081; XP002029615
CHEMICAL ABSTRACTS, vol. 125, no. 27, 1996, Columbus, Ohio, US; abstract no. 221584v, page 1081; XP002029615
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