Phenothiazine leucodyes for electrochromic recording

Details Phenothiazine leucodyes for electrochromic recording Phenothiazine leucodyes for electrochromic recording

B - Operations, Transporting

41

M

41/1

B41M 5/20 (2006.01) C09B 21/00 (2006.01)

Patent

CA 1184030

SA9 82 013 PHENOTHIAZINE LEUCODYES FOR ELECTROCHROMIC RECORDING Abstract of the Disclosure An electrochromic recording substrate comprising bromide ions and a leucodye having the structure Image wherein R is lower alkyl, lower alkoxy, lower thioalkyl, lower dialkylamino, or diarylamino.

434621

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