Propionphenone derivatives as photoinitiators for photopolymeriz

Details Propionphenone derivatives as photoinitiators for photopolymeriz Propionphenone derivatives as photoinitiators for photopolymeriz

1989-09-22

1992-09-15

McCamish, Marion E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522103, 522182, C08F 250, C08F 472, C08F 2020

Patent

active

051479010

ABSTRACT:
Propiophenones of the formula I ##STR1## in which R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl, --Si(CH.sub.3).sub.3, allyl or benzyl, R.sup.2 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.4 -alkyl which is substituted by C.sub.1 -C.sub.4 -alkoxy or --OH, --(CH.sub.2 --CH.sub.2 --O).sub.n --R.sup.5 where n is 2 to 20 and R.sup.5 is H or C.sub.1 -C.sub.4 -alkyl, --Si(CH.sub.3).sub.3, benzyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.4 -alkynyl or 2-tetrahydrofuranyl, or R.sup.1 and R.sup.2 together are a C.sub.1 -C.sub.6 -alkylidene radical or a C.sub.2 -C.sub.6 -alkylidene radical which is substituted by hydroxyl, C.sub.1 -C.sub.4 -alkoxy or phenyl, a linear or branched C.sub.2 -C.sub.6 -alkanediyl radical, a benzylidene, cyclopentylidene or cyclohexylidene radical or a 2,2,2-trichloroethylidene, 2-furylmethylidene or dimethylsilylidene radical, R.sup.3 is phenyl which is unsubstituted or substituted by one or more --Cl, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkylthio radicals, and is also benzoylphenyl, phenoxyphenol or phenylthiophenyl, R.sup.4 is C.sub.1 -C.sub.4 -alkyl, or phenyl which is unsubstituted or substituted by one or more --Cl, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy radicals, and R.sup.5 is hydrogen or C.sub.1 -C.sub.4 -alkyl, or R.sup.4 and R.sup.5 together are a trimethylene or tetramethylene radical, and R.sup.6 is hydrogen, C.sub.1 -C.sub.4 -alkyl, --CCl.sub.3 or phenyl, subject to the condition that, if R.sup.2, R.sup.5 and R.sup.6 at the same time are hydrogen and R.sup.3 and R.sup.4 are at the same time phenyl, R.sup.1 must not be hydrogen or C.sub.1 -C.sub.4 -alkyl, also, if R.sup.3 and R.sup.4 at the same time are phenyl and R.sup.5 and R.sup.6 are at the same time hydrogen, R.sup.1 and R.sup.2 together must not be alkylidene or benzylidene, and also, if R.sup.3 and R.sup.4 at the same time are p-methoxyphenyl and R.sup.2, R.sup.5 and R.sup.6 are at the same time hydrogen, R.sup.1 must not be hydrogen, and, finally, if R.sup.2 and R.sup.6 at the same time are hydrogen and R.sup.3, R.sup.4 and R.sup.5 are at the same time phenyl, R.sup.1 must not be hydrogen, are valuable initiators for the photopolymerization of ethylenically unsaturated compounds.

REFERENCES:
patent: 3636026 (1972-01-01), Fuhr
patent: 3657088 (1972-04-01), Heine
patent: 3689565 (1972-09-01), Hoffmann
patent: 4141806 (1979-02-01), Keggenhoff
patent: 4318791 (1982-03-01), Felder et al.

Affiliated with

Also associated with

Rating

Propionphenone derivatives as photoinitiators for photopolymeriz does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Propionphenone derivatives as photoinitiators for photopolymeriz, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Propionphenone derivatives as photoinitiators for photopolymeriz will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-737122