Claims
- 1. A photopolymerizable mixture which comprises:
- a) a polymeric binder,
- b) a polymerizable compound having at least one terminal olefinic double bond and having a boiling point above 100.degree. C. at normal pressure, and
- c) a 9-arylacridine compound as photoinitiator,
- wherein the acridine compound conforms to the general formula (I) ##STR5## in which R.sup.1 and R.sup.2 are identical or different and denote an optionally substituted alkyl or acyl group,
- R.sup.3 and R.sup.4 are identical or different and denote hydrogen or halogen atoms or optionally substituted alkyl or acyl groups,
- R.sup.5, R.sup.6, and R.sup.7 are identical or different and denote hydrogen or halogen atoms or optionally substituted alkyl, aryl or acyl groups, or groups of the formula II ##STR6##
- 2. A photopolymerizable mixture as claimed in claim 1, wherein R.sup.1 is an alkyl group containing 1 to 10 carbon atoms, an aliphatic acyl group containing 2 to 10 carbon atoms or an aromatic acyl group containing 7 to 15 carbon atoms.
- 3. A photopolymerizable mixture as claimed in claim 1, wherein R.sup.3, R.sup.4 and R.sup.5 are hydrogen atoms.
- 4. A photopolymerizable mixture as claimed in claim 1, wherein the radicals R.sup.1 to R.sup.7 together contain at least 6 carbon atoms.
- 5. A photopolymerizable mixture as claimed in claim 1, wherein at least one of the radicals R.sup.1 to R.sup.7 contains an aromatic group.
- 6. A photopolymerizable mixture as claimed in claim 1, wherein at least one of the radicals R.sup.3 to R.sup.7 is different from hydrogen.
- 7. A photopolymerizable mixture as claimed in claim 1, wherein the radicals R.sup.1 to R.sup.7 together increase the molecular weight of the compound of the formula I by about 60 to 800.
- 8. A photopolymerizable mixture as claimed in claim 7, wherein the radicals R.sup.1 to R.sup.7 together increase the molecular weight of the compound of the formula I by 100 to 700.
- 9. A photopolymerizable mixture as claimed in claim 1, wherein at least one of the radicals R.sup.1 to R.sup.7 contains an oxygen atom.
- 10. A photopolymerizable mixture as claimed in claim 1, wherein the binder is insoluble in water and soluble in aqueous alkaline solutions.
- 11. A photopolymerizable mixture as claimed in claim 1, wherein the photopolymerizable compound is an ester of acrylic acid or methacrylic acid with an aliphatic alcohol.
- 12. A photopolymerizable mixture as claimed in claim 1, wherein the proportion of the compounds of the formula I is about 0.01 to 10 wt %, based on the nonvolatile constituents of the mixture.
- 13. A photopolymerizable copying material as claimed in claim 12, further comprising a layer having a low permeability to oxygen disposed on top of said photopolymerizable coating.
- 14. A photopolymerizable copying material comprising a coating base and a photopolymerizable coating, wherein the coating comprises a mixture as claimed in claim 1.
- 15. A photopolymerizable as claimed in claim 1, consisting essentially of the polymeric binder, the polymerizable compound and the 9-arylacridine compound.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3843204 |
Dec 1988 |
DEX |
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Parent Case Info
This application is a continuation, of application Ser. No. 07/454,198, filed Dec. 21, 1989 now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
374705 |
Jun 1990 |
EPX |
Non-Patent Literature Citations (3)
Entry |
The Journal of Organic Chemistry, vol. 29, Sep.-Dec. 1964, p. 2857. |
Journal of the Chemical Society, Section C Organic Chemistry, 1967, p. 2071. |
Journal of the Chemical Society, Section C Organic Chemistry, 1968, p. 2900. |
Continuations (1)
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Number |
Date |
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Parent |
454198 |
Dec 1989 |
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