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发明名称
STILBENE OPTICAL BRIGHTENERS
摘要
The present invention discloses compounds of 4,4'-diaminostilbene-2,2'-disulphonic acid which are useful as optical brighteners to bleach fibres, cellulose and in particular paper and cardboard.
申请公布号
EP2933253(A1)
申请公布日期
2015.10.21
申请号
EP20150164024
申请日期
2015.04.17
申请人
3V SIGMA S.P.A
发明人
BERTE', FERRUCCIO;ALBORGHETTI, PATRICK
分类号
C07D403/12
主分类号
C07D403/12
代理机构
代理人
主权项
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