...
>Neither his current or previous process is based on diazo or dichromates,
>but use his own sensitiser formulation. He tells me that there are 13
>non-toxic sensitisers available for those who study the patent literature
The latest edition of the Glafkidès is likely to have everything.
Also, at least one of the patent databases (limited to US patents'
abstracts) is free to use:
http://patent.womplex.ibm.com/
Unfortunately, this only starts in the 1970s
Luis Nadeau
NADEAUL@NBNET.NB.CA
Fredericton, New Brunswick, Canada
http://www3.nbnet.nb.ca/nadeaul/