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BR9901696A - Naphthopyran benzofurans, compositions and (co) polymeric matrices containing them - Google Patents

Naphthopyran benzofurans, compositions and (co) polymeric matrices containing them

Info

Publication number
BR9901696A
BR9901696A BR9901696A BR9901696A BR9901696A BR 9901696 A BR9901696 A BR 9901696A BR 9901696 A BR9901696 A BR 9901696A BR 9901696 A BR9901696 A BR 9901696A BR 9901696 A BR9901696 A BR 9901696A
Authority
BR
Brazil
Prior art keywords
compositions
naphthopyran
benzofurans
polymeric matrices
matrices containing
Prior art date
Application number
BR9901696A
Other languages
Portuguese (pt)
Inventor
You-Ping Chan
Original Assignee
Corning Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR9615851A external-priority patent/FR2757516B1/en
Application filed by Corning Inc filed Critical Corning Inc
Publication of BR9901696A publication Critical patent/BR9901696A/en

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Abstract

Patente de Invenção para <B>''(BENZOFURANO)NAFTOPIRANOS, AS COMPOSIçõES E AS MATRIZES (CO) POLìMERAS CONTENDO-OS''<D>. A presente invenção refere-se a novos compostos do tipo (benzofurano)naftopiranos, bem como as composições e as matrizes (co) polímeras contendo tais derivados. O dito derivado possui interessantes propriedades fotocromáticas.Invention Patent for <B> '' (BENZOFURANO) NAFTOPIRANS, THE COMPOSITIONS AND (CO) POLYMER MATRIXS CONTAINING THEM '' <D>. The present invention relates to new compounds of the naphthopyran (benzofuran) type, as well as compositions and (co) polymers containing such derivatives. The said derivative has interesting photochromatic properties.

BR9901696A 1996-12-23 1999-05-31 Naphthopyran benzofurans, compositions and (co) polymeric matrices containing them BR9901696A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9615851A FR2757516B1 (en) 1996-12-23 1996-12-23 [BENZOFURANE] NAPHTOPYRANS, COMPOSITIONS AND MATRICES (CO) POLYMERS CONTAINING THEM
US3835998P 1998-02-13 1998-02-13

Publications (1)

Publication Number Publication Date
BR9901696A true BR9901696A (en) 2000-05-02

Family

ID=26233199

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9901696A BR9901696A (en) 1996-12-23 1999-05-31 Naphthopyran benzofurans, compositions and (co) polymeric matrices containing them

Country Status (1)

Country Link
BR (1) BR9901696A (en)

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Legal Events

Date Code Title Description
HKB Cancellation of publication