Claims
- 1. A process for the preparation of a photopolymerizable composition which comprises: incorporating a photoinitiator into a photopolymerizable composition containing monomers having polymerizable C--C double bonds, said photoinitiator being an acylphosphine sulfide of the formula ##STR12## where R.sup.1 is straight-chain or branched alkyl of 1 to 6 carbon atoms, cyclohexyl or cyclopentyl, or a phenyl, naphthyl or O--, S-- or N--containing 5- or 6-membered heterocyclic radical which is unsubstituted or substituted by fluorine, chlorine, bromine, C.sub.1 -C.sub.4 --alkyl or C.sub.1 -C.sub.4 --alkoxy; R.sup.2 has the meanings of R.sup.1 and can be identical to or different from R.sup.1, or is alkoxy of 1 to 6 carbon atoms, phenoxy which is unsubstituted or substituted by chlorine, C.sub.1 -C.sub.6 --alkyl or C.sub.1 -C.sub.6 --alkoxy, or phenoxyalkyl, where alkyl is of 1 to 4 carbon atoms, or R.sup.1 and R.sup.2 are linked together to form a ring of 4 to 10 carbon atoms which is unsubstituted or can contain 1 to 6 further alkyl substituents, each of 1 to 4 carbon atoms, as well as 1 or 2 fused-on benzene rings; R.sup.3 is straight-chain or branched alkyl of 2 to 18 carbon atoms, a cycloaliphatic radical of 3 to 12 carbon atoms, mono-, di-, tri- or tetra-substituted phenyl or an unsubstituted or mono-, di-, tri- or tetra-substituted naphthyl, where the substituents can be identical or different and can be alkyl, alkylthio or alkoxy of 1 to 6 carbon atoms or chlorine, bromine or fluorine, or the group ##STR13## where R.sup.1 and R.sup.2 have the above meanings and X is unsubstituted or mono-, di-, tri- or tetra-substituted phenylene, where the substituents can be identical or different and can be alkyl, alkylthio or alkoxy of 1 to 6 carbon atoms or halogen of atomic weight of not more than 80, or X is an aliphatic or cycloaliphatic divalent radical of 2 to 6 carbon atoms; and where one or more of R.sup.1, R.sup.2 and R.sup.3 may be olefinically unsaturated, where R.sup.3 can also be methyl or phenyl.
- 2. A process as set forth in claim 1, wherein the composition includes a secondary and/or tertiary amine.
- 3. A process as set forth in claim 1, wherein the acylphosphine sulfide is used as a photoinitiator, in a photopolymerizable coating agent, finish, printing ink or recording material, in a concentration of 0.01% to 15%.
- 4. A process as set forth in claim 1, wherein the photopolymerizable composition is used for producing a plastic molding based on an unsaturated polyester resin.
- 5. A process as set forth in claim 2, wherein the photopolymerizable composition is used for producing a plastic molding based on an unsaturated polyester resin.
- 6. A process as set forth in claim 1, wherein an acylphosphine sulfide of the general formula (I) is used as the UV sensitizer in combination with a compound from the group consisting benzil ketals, benzoin ethers, benzoin esters, C.sub.1 -C.sub.4 --alkyl--, chloro- or chloromethyl-substituted thioxanthones, aromatic disulfides, naphthalenesulfonyl chlorides, acylphosphines, acylphosphine oxides and acylphosphinic acid esters.
- 7. A process as set forth in claim 1, wherein the acylphosphine sulfide is used in combination with an initiator for thermal polymerization.
- 8. A process as set forth in claim 2, wherein the acylphosphine sulfide is used in combination with an initiator for thermal polymerization.
- 9. A process as set forth in claim 4, wherein the acylphosphine sulfide is used in combination with an initiator for thermal polymerization.
- 10. A process as set forth in claim 5, wherein the acylphosphine sulfide is used in combination with an initiator for thermal polymerization.
- 11. A process as set forth in claim 6, wherein the acylphosphine sulfide is used in combination with an initiator for thermal polymerization.
- 12. A photopolymerizable composition comprising monomers having polymerizable C--C double bonds and as a photoinitiator an acylphosphine sulfide of the formula ##STR14## where R.sup.1 is straight-chain or branched alkyl of 1 to 6 carbon atoms, cyclohexyl or cyclopentyl, or a phenyl, naphthyl or O--, S-- or N--containing 5- or 6-membered heterocyclic radical which is unsubstituted or substituted by fluorine, chlorine, bromine, C.sub.1 -C.sub.4 --alkyl or C.sub.1 -C.sub.4 --alkoxy; R.sup.2 has the meanings of R.sup.1 and can be identical to or different from R.sup.1, or is alkoxy of 1 to 6 carbon atoms, phenoxy which is unsubstituted or substituted by chlorine, C.sub.1 -C.sub.6 --alkyl or C.sub.1 -C.sub.6 --alkoxy, or phenoxyalkyl, where alkyl is of 1 to 4 carbon atoms, or R.sup.1 and R.sup.2 are linked together to form a ring of 4 to 10 carbon atoms which is unsubstituted or can contain 1 to 6 further alkyl substituents, each of 1 to 4 carbon atoms, as well as 1 or 2 fused-on benzene rings; R.sup.3 is straight-chain or branched alkyl of 2 to 18 carbon atoms, a cycloaliphatic radical of 3 to 12 carbon atoms, mono-, di-, tri- or tetra-substituted phenyl or an unsubstituted or mono-, di-, tri- or tetra-substituted naphthyl, where the substituents can be identical or different and can be alkyl, alkylthio or alkoxy of 1 to 6 carbon atoms or chlorine, bromine or fluorine, or the group ##STR15## where R.sup.1 and R.sup.2 have the above meanings and X is unsubstituted or mono-, di-, tri- or tetra-substituted phenylene, where the substituents can be identical or different and can be alkyl, alkylthio or alkoxy of 1 to 6 carbon atoms or halogen of atomic weight of not more than 80, or X is an aliphatic or cycloaliphatic divalent radical of 2 to 6 carbon atoms; and where one or more of R.sup.1, R.sup.2 and R.sup.3 may be olefinically unsaturated, where R.sup.3 can also be methyl or phenyl.
- 13. The composition of claim 12 wherein the photopolymerizable composition comprises an unsaturated polyester resin.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3034697 |
Sep 1980 |
DEX |
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Parent Case Info
This is a continuation of Ser. No. 296,895 filed Aug. 27, 1981, and now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3399213 |
Osborne |
Aug 1968 |
|
Foreign Referenced Citations (4)
Number |
Date |
Country |
2909994 |
Feb 1980 |
DEX |
1156460 |
Jun 1969 |
GBX |
1304112 |
Jan 1973 |
GBX |
1406467 |
Sep 1975 |
GBX |
Non-Patent Literature Citations (2)
Entry |
"Spectroscopic", Osaki et al., Bull. Chem. Soc., Japan 1973, 46(6), 1803-1806. |
Calvert et al., "Photo Chemistry", Wiley & Sons 1966, pp. 488-492. |
Continuations (1)
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Number |
Date |
Country |
Parent |
296895 |
Aug 1981 |
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