Patents Assigned to Temsa International Inc.
  • Process for preparing a benzoxazinone
    Patent number: 7915406
    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.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: March 29, 2011
    Assignee: Temsa International Inc.
    Inventor: Asim Kumar Sarkar
  • Process for Preparing a Benzoxazinone
    Publication number: 20090030119
    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.
    Type: Application
    Filed: January 5, 2007
    Publication date: January 29, 2009
    Applicant: TEMSA INTERNATIONAL INC.
    Inventor: Asim Kumar Sarkar