| abstract |
THE INVENTION CONCERNS ESTERS, THIO-ESTERS AND AMIDES OF THIAXANTHONE-CARBOXYLIC ACIDS. THESE MEET THE FORMULA: (CF DRAWING IN BOPI) IN WHICH X REPRESENTS A HYDROGEN OR HALOGEN ATOM OR A RADICAL -CN, -OH, -SH, -NH, -SOH, PHENYL-SULFONYL, ALKYLSULFONYL , ALKYL, ALCOXY, ALKYLTHIO, ALKYLAMINO, DIALKYLAMINO, ALKYLCARBONYL, -CO-OR, -CO-SR, -CO-N (R) (R), PIPERIDYLCARBONYL, PYRROLIDYLCARBONYL, PYRROLIDINYLCARBONYENE, ZARPRROLIDINYLCARBONYEN OR DYRROLIDINYLCARBONYENE OR DYRROLIDINYLCARBONYEN OR DYRROLIDINYLCARBONYENE D'ARPHONYLE OR D 'MORPHONYLE HALOGEN OR A RADICAL -OH, -SH, ALKYL, ALCOXY, ALKYLTHIO OR DIALKYLAMINO, REPRESENTS A RADICAL -OR, -SR, -N (R) (R), PIPERIDYL, PYRROLIDINYL OR MORPHOLINYL. THESE COMPOUNDS, ASSOCIATED WITH AMINES, ARE SUITABLE AS INITIATORS FOR THE PHOTOPOLYMERIZATION OF ETHYLENIC COMPOUNDS OR FOR THE PHOTOCHEMICAL CROSSLINING OF POLYOLEFINS. |