Patent · US Expired

Alkylbisacylphosphine oxides

US5399770A · kind A · utility

41Cited by
3References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 17, 1992
Grant dateMar 21, 1995
Priority date
Expiry dateSep 17, 2012

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S430/126
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Compounds of the formula I ##STR1## in which R.sub.1 is C.sub.1 -C.sub.18 alkyl, cyclopentyl or cyclohexyl, and R.sub.2 and R.sub.3, independently of one another, are phenyl which is unsubstituted or monosubstituted to tetrasubstituted by halogen, C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, with the proviso that R.sub.1 is not decyl if R.sub.2 and R.sub.3 are chlorine-substituted phenyl, are suitable for the photopolymerization of compounds containing ethylenically unsaturated double bonds.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.