Fused ring compounds, and their use as cationic photoinitiators

Details Fused ring compounds, and their use as cationic photoinitiators Fused ring compounds, and their use as cationic photoinitiators

2006-09-05

2006-09-05

Dentz, Bernard (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C544S035000, C549S016000, C549S017000, C549S023000, C549S026000, C549S027000, C549S043000, C524S080000, C524S082000, C524S083000, C524S084000, C524S457000, C252S182170

Reexamination Certificate

active

07101998

ABSTRACT:
Compounds of formula (I):[in which: R1represents a direct bond, an oxygen atom, a group >CH2, a sulphur atom, a group >C═O, a group —(CH2)2— or a group of formula —N—Ra, where Rais hydrogen or an alkyl; R4, R5, R6and R7are each hydrogen or various groups or atoms; R8, R9, R10and R11are each hydrogen, hydroxy, or alkyl; or R9and R11form a fused ring system with the benzene rings to which they are attached; R12is a direct bond, oxygen atom or methylene; and X−is an anion; and esters thereof] are useful as cationic photoinitiators, especially for use in surface coating applications, such as printing inks and varnishes, and which are intended to be cured by polymerisation initiated by radiation.

REFERENCES:
patent: 4161478 (1979-07-01), Crivello
patent: 2004/0242901 (2004-12-01), Norcini et al.
patent: 2005/0064333 (2005-03-01), Crivello
patent: WO 03/002557 (2002-05-01), None
Crivello et al, J. of Polymer Science, Part A:Polymer Chemistry, 40(20), p. 3465-3480 (Sep. 2002).
M. Kim and K. Kim; Synthesis of 2,3,8,9-Dibenzo-5,6-(substituted)benzo-1,4-dithio-7-oxacyclonona-2,5,8-trienes and Some Electrophilic Substitution Reactions; J. Heterocyclic Chem., 1998; vol. 35; pp. 235-247.

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