Claims
- 1. A photopolymerizable composition which comprises
- (a) at least one ethylenically unsaturated photopolymerizable compound, and
- (b) an effective photoinitiating amount of a compound of formula I ##STR16## in which Ar is phenyl substituted in the 4-position by di(C.sub.1 -C.sub.4 -alkyl)amino or morpholino,
- R.sup.1 and R.sup.2 are independently C.sub.1 -C.sub.4 -alkyl, and
- R.sup.3 and R.sup.4 are each C.sub.1 -C.sub.4 -alkyl or 2-methoxyethyl, or
- R.sup.3 and R.sup.4 together with the N-atom to which they are attached are morpholino.
- 2. A composition according to claim 1 wherein the compound of component (b) is 2-methyl-1-(4-dimethylaminophenyl)-2-dimethylaminopropan-1-one.
- 3. A composition according to claim 1 wherein the compound of component (b) is 2-methyl-1-(4-diethylaminophenyl)-2-diethylaminopropan-1-one.
- 4. A composition according to claim 1 wherein the compound of component (b) is 2-methyl-1-(4-dimethylaminophenyl)-2-dimethylaminobutan-1-one.
- 5. A composition according to claim 1 wherein the compound of component (b) is 2-methyl-1-(4-morpholinophenyl)-2-di(2-methoxyethyl)aminopropan-1-one.
- 6. A composition according to claim 1 wherein the compound of component (b) is 2-methyl-1-(4-morpholinophenyl)-2-dimethylaminopropan-1-one.
- 7. A process for photopolymerizing an ethylenically unsaturated compound which comprises
- incorporating therein an effective photoinitiating amount of a compound of formula I according to claim 1, and
- irradiating said material with actinic light.
Priority Claims (2)
Number |
Date |
Country |
Kind |
4430/83 |
Aug 1983 |
CHX |
|
4722/83 |
Aug 1983 |
CHX |
|
Parent Case Info
This is a divisional of application Ser. No. 207,036, filed on Jun. 14, 1988, now U.S. Pat. No. 4,992,547, issued on Feb. 12, 1991, which is a continuation of application Ser. No. 802,899, filed on Nov. 27, 1985, now abandoned, which is a continuation of application Ser. No. 638,933, filed on Aug. 9, 1984, now abandoned.
US Referenced Citations (2)
Divisions (1)
|
Number |
Date |
Country |
Parent |
207036 |
Jun 1988 |
|
Continuations (2)
|
Number |
Date |
Country |
Parent |
802899 |
Nov 1985 |
|
Parent |
638933 |
Aug 1984 |
|