Patent
Monoacetals or aromatic 1,2-diketones (US Patent 4190602)
Ciba-Geigy Corporation · Granted Feb 26, 1980 · Filed Jun 22, 1978
Patent number: 4190602 Granted: 1980-02-26 Filed: 1978-06-22 Inventors: Jean Brunisholz (Monthey, CH); Rudolf Kirchmayr (Munchenstein, CH) Assignees: Ciba-Geigy Corporation (Ardsley, NY, US)
Abstract
Monoacetals of aromatic diketones in which the acetal group is derived from primary mono- or dialkohols are useful as sensitizers in the photochemical polymerization or photochemical crosslinking of polymers. They are prepared from the diketones (benzils) by reaction with sulfites. The sulfites and the benzils may be formed
Showing a preview — retrieve the full document via the Exa API.
Powered by the Exa API