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US4054682A
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Photopolymerizable composition containing a thioether sensitizer
Assignee: BASF SE
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Filing: 1977-01-06
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Granted: 1977-10-18
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Expires: 1997-01-06
Abstract
Abstract A photopolymerizable composition containing olefinically unsaturated compounds, optional conventional additives and, as photoinitiator, a mixture of a thioether of the general formula (I): ##STR1## where R 4 is phenyl, naphthyl, thienyl, furyl or styryl which may be substituted by one or more identical or different R 5 's, R 5 is phenyl, benzoyl, halogen, alkyl of 1 to 5 carbon atoms, alkyl having an --O--group and 1 to 5 carbon atoms, alkyl having an --S--group and 1 to 5 carbon atoms, alkoxyalkyl of 2 to 5 carbon atoms, alkaryl of 7 to 11 carbon atoms, aralkyl of 7 to 11 carbon atoms, NO 2 , CN, COOH or COOR 6 , R 6 being an alkyl of 1 to 5 carbon atoms, A is the alkylene group C n H 2n (n = an integer of 1 to 5) which may be substituted by one or more R 4 's and/or R 5 's, and R 1 , r 2 and R 3 may be identical or different and are each H, an R 4 or an R 5 , and an organic amine. The photopolymerizable composition is suitable for the production of coatings and printing inks which can be cured by ultraviolet radiation.
Inventors
- 👤 Werner Kuesters
- 👤 Rolf Osterloh
- 👤 Manfred Jacobi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:09
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/101; C08; C08F; C08F2/00; C08F2/46; C08F2/48; C08F2/50; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/108; Y10S430/114; Y10S430/122; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31525; Y10T428/31529
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
135 words
A photopolymerizable composition containing olefinically unsaturated compounds and 0.2 to 20% by weight, based on the unsaturated compounds, of a photoinitiator, wherein the photoinitiator is a mixture of A. a thioether of the general formula (I): ##STR4## where R 4 is phenyl, naphthyl, thienyl, furyl or styryl which may be substituted by one or more identical or different R 5 's, R 5 is phenyl, benzoyl, halogen, alkyl of 1 to 5 carbon atoms, alkyl having an --O--group and 1 to 5 carbon atoms, alkyl having an --S--group and 1 to 5 carbon atoms, alkoxyalkyl of 2 to 5 carbon atoms, alkaryl of 7 to 11 carbon atoms, aralkyl of 7 to 11 carbon atoms, NO 2 , CN, COOH or COOR 6 , R 6 being an alkyl of 1 to 5 carbon atoms,
Claim 2
Dependent Claim
135 words
A photopolymerizable composition containing olefinically unsaturated compounds and 0.2 to 20% by weight, based on the unsaturated compounds, of a photoinitiator, wherein the photoinitiator is a mixture of A. a thioether of the general formula (I): ##STR4## where R 4 is phenyl, naphthyl, thienyl, furyl or styryl which may be substituted by one or more identical or different R 5 's, R 5 is phenyl, benzoyl, halogen, alkyl of 1 to 5 carbon atoms, alkyl having an --O--group and 1 to 5 carbon atoms, alkyl having an --S--group and 1 to 5 carbon atoms, alkoxyalkyl of 2 to 5 carbon atoms, alkaryl of 7 to 11 carbon atoms, aralkyl of 7 to 11 carbon atoms, NO 2 , CN, COOH or COOR 6 , R 6 being an alkyl of 1 to 5 carbon atoms,
Claim 3
Dependent Claim
63 words
A is the alkylene group C n H 2n (n = an integer of 1 to 5) which may be substituted by one or more R 4 's and/or R 5 's, and R 1 , r 2 and R 3 may be identical or different and are each H, an R 4 or an R 5 , and B. an organic amine.
Claim 4
Dependent Claim
63 words
A is the alkylene group C n H 2n (n = an integer of 1 to 5) which may be substituted by one or more R 4 's and/or R 5 's, and R 1 , r 2 and R 3 may be identical or different and are each H, an R 4 or an R 5 , and B. an organic amine.
Claim 5
Dependent Claim
13 words
A photopolymerizable composition as claimed in claim 1 which additionally contains conventional additives.
Claim 6
Dependent Claim
38 words
A photopolymerizable composition as claimed in claim 1, wherein the olefinically unsaturated compound is at least one low molecular weight compound selected from the group consisting of styrene, an acrylyl compound, a methacrylyl compound and a vinyl compound.
Claim 7
Dependent Claim
34 words
A photopolymerizable composition as claimed in claim 1, wherein the olefinically unsaturated compound is at least one substance selected from the group consisting of an unsaturated polyester, an epoxy acrylate and a urethane acrylate.
Claim 8
Dependent Claim
44 words
A photopolymerizable composition as claimed in claim 1, wherein the olefinically unsaturated compounds are a mixture of at least one of the low molecular weight compounds according to claim 3 and at least one of the high molecular weight compounds according to claim 4.
Claim 9
Dependent Claim
30 words
A photopolymerizable composition as claimed in claim 1, wherein at least one compound selected from the group consisting of 2-methyl-(4'-methylthio)-benzophenone, 2,4-dimethyl-(4'-methylthio)-benzophenone, 4,4'-bis-(methylthio)-benzophenone, (4-methylthio)-benzophenone and 2-fluoro-(4'-methylthio)-benzophenone is used as organic thioether.
Claim 10
Dependent Claim
29 words
A photopolymerizable composition as claimed in claim 1, wherein amines are used which have the general formula: ##STR5## where R', R", R"' and R"" each denote any organic radical.
Claim 11
Dependent Claim
19 words
A photopolymerizable composition as claimed in claim 1, wherein tertiary amines, particularly hydroxyl-containing tertiary amines, are used as amines.
Claim 12
Dependent Claim
23 words
A photopolymerizable composition as claimed in claim 1, wherein the weight ratio of component A to component B is from 9:1 to 1:9.
Claim 13
Dependent Claim
39 words
A process for the production of coatings, wherein a photopolymerizable composition as claimed in claim 1 is applied to the substrate to be coated and cured by means of light having a wavelength of from 2300 to 4500 A.
Claim 14
Dependent Claim
39 words
A process for the production of coatings, wherein a photopolymerizable composition as claimed in claim 2 is applied to the substrate to be coated and cured by means of light having a wavelength of from 2300 to 4500 A.
Claim 15
Dependent Claim
21 words
A process for the production of photopolymer printing plates, wherein there is used a photopolymerizable composition as claimed in claim 1.
Claim 16
Dependent Claim
21 words
A process for the production of photopolymer printing plates, wherein there is used a photopolymerizable composition as claimed in claim 2.
Claim 17
Dependent Claim
24 words
A process for the production of ultraviolet-cure printing inks, wherein a photopolymerizable composition as claimed in claim 1 is used as printing ink binder.
Claim 18
Dependent Claim
24 words
A process for the production of ultraviolet-cure printing inks, wherein a photopolymerizable composition as claimed in claim 2 is used as printing ink binder.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-17 | 1981-04-18 | 1981-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-17 | 1985-04-18 | 1985-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-17 | 1989-04-18 | 1989-10-18 | $7700.00 | Window Closed / Lapsed |