发明名称 |
Photochromic composition endowed with light fatigue resistance and photochromic articles which contain it. |
摘要 |
<p>A photochromatic composition, endowed with a high light fatigue resistance contains a photochromatic compound belonging to the class of spirooxazines and an U.V.-stabilizer consisting of a sterically hindered amine to be defined by means of formula (I): <CHEM> wherein: R is either hydrogen or a methyl group, x is either oxygen or nitrogen, m is a number comprised within the range of from 2 to 10, and n is a number coprised within the range of from 1 to 100. A photochromatic article made from a thermoplastic material, endowed with a high light fatigue resistance, contains a thermoplastic material and the hereinabove disclosed phtochromatic composition.</p> |
申请公布号 |
GR3017226(T3) |
申请公布日期 |
1995.11.30 |
申请号 |
GR19950402334T |
申请日期 |
1995.08.30 |
申请人 |
ENICHEM SYNTHESIS S.P.A. |
发明人 |
BUSETTO, CARLO;CRISCI, LUCIANA;RENZI, FIORENZO;RIVETTI, FRANCO |
分类号 |
C07D211/58;C07D498/10;C07D498/20;C07F7/08;C07F7/10;C08K5/00;C08K5/3432;C08K5/3435;C08K5/357;C08K5/544;C08L101/00;C09K9/02;G03C1/685;(IPC1-7):G03C1/685;C08K5/54;C08L83/04 |
主分类号 |
C07D211/58 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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