Multifunctional cationic photoinitiators, their preparation...

Details Multifunctional cationic photoinitiators, their preparation... Multifunctional cationic photoinitiators, their preparation...

2007-10-01

2009-10-06

Anderson, Rebecca L (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C522S053000

Reexamination Certificate

active

07598401

ABSTRACT:
Compounds of formula (I):[where: R1is a direct bond, oxygen, a group >CH2, sulphur, a group >C═O, a group —(CH2)2— or a group —N—Ra, where Rais hydrogen or alkyl; R3, R4, R5and R6are hydrogen or substituents α; R8, R9, R10and R11are hydrogen, hydroxy or alkyl; or R9and R11are joined to form a fused ring system with the benzene rings to which they are attached; R7is a direct bond, oxygen or a —CH2— group; p is 0 or 1; substituents α are: alkyl, alkoxy, alkenyl, halogen, nitrile, hydroxyl, aryl, aralkyl, aryloxy, aralkyloxy, arylalkenyl, cycloalkyl, carboxy, carboxyalkoxy, alkoxycarbonyl, aryloxycarbonyl, alkylcarbonyloxy, alkanesulphonyl, arenesulphonyl, alkanoyl or arylcarbonyl; n is 1 to 12; R12is hydrogen, methyl or ethyl; A is a group —[O(CHR13CHR14)a]y—, —[O(CH2)bCO]y—, or —[O(CH2)bCO](y−1)—[O(CHR13CHR14)a]—, where:one of R13and R14is hydrogen and the other is hydrogen, methyl or ethyl; a is 1 to 2; b is 4 to 5; Q is a residue of a polyhydroxy compound having from 2 to 6 hydroxy groups; x is a number greater than 1 but no greater than the number of available hydroxyl groups in Q; y is a number from 1 to 10; andX−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: 5113876 (1992-05-01), Herman
patent: 5731364 (1998-03-01), Sinta et al.
patent: 5905164 (1999-05-01), Anderson et al.
patent: 7101998 (2006-09-01), Herlihy et al.
patent: 7166647 (2007-01-01), Herlihy et al.
patent: 7176317 (2007-02-01), Banning et al.
patent: 0869393 (1998-10-01), None
patent: 03/007258 (2003-09-01), None
patent: 03/072567 (2003-09-01), None
patent: 03/098347 (2003-11-01), None

Affiliated with

Also associated with

Rating

Multifunctional cationic photoinitiators, their preparation... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multifunctional cationic photoinitiators, their preparation..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multifunctional cationic photoinitiators, their preparation... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4120154