Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 29, 2011
Patent Application Number
12159999
Date Filed
January 5, 2007
Patent Primary Examiner
Patent abstract
The invention relates to a method for preparing a benzoxazinone comprising reacting an isatoic anhydride with an acylating compound in the presence of an N-alkyl imidazole, to a method for preparing a photo-stabilised composition, comprising adding a benzoxazinone and to the use of a benzoxazinone as a light-absorber or as a stabiliser for a light-sensitive compound.
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