| abstract |
There will be new xanthones and thioxanthones of the formula described, wherein A, X, Y, Z, E and E 'have the meaning given in claim 1. A is preferably -S- and E and E 'are preferably bonded to one another in the ortho position. The compounds (I) are suitable, for example, as sensitizers for light-crosslinkable polymers or photocurable compositions or in a mixture with polymers with H-donor groups for image formation, especially of electrically conductive coatings and patterns, by means of electroless metal deposition. |