US4501689A
Expired / Lapsed
US
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Photopolymerizable composition
Assignee: Tamura Kaken Corp
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Filing: 1983-09-26
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Granted: 1985-02-26
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Expires: 2003-09-26
Abstract
Abstract A photopolymerizable composition used suitably as a solder resist for a printed circuit board which comprises: (a) 0.1 to 5.0 wt. % of a s-triazine compound represented by the general formula I: ##STR1## [wherein R 1 stands for ##STR2## (wherein R 2 stands for a hydrogen atom, an alkyl group or a phenyl group and R 3 stands for a hydrogen atom or a lower alkyl group)]; (b) 5 to 50 wt. % of a photopolymerizable oligomer which has an average molecular weight in the range of 200 to 4000 and has 2 or more of acryloyl groups or methacryloyl groups in a molecule; (c) 5 to 50 wt. % of vinyl monomer having 1 or more of acryloyl groups or methacryloyl groups which are liquid at 50° C.; (d) 0.5 to 5 wt. % of a photo-initiator which acts to initiate a cross-linking reaction between said photopolymerizable oligomer and said vinyl monomer when subjected to activated radiation; and (e) 5 to 60 wt. % of an inorganic filler.
Inventors
- 👤 Makoto Yanagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:12
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; B; B23; B23K; B23K35/00; B23K35/22; B23K35/224; H; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/285; H05K3/287; Y; Y10; Y10S; Y10S428/00; Y10S428/901
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
157 words
A photopolymerizable composition which comprises: (a) 0.1 to 5.0 wt. % of a s-triazine compound represented by general formula I: ##STR5## [wherein R 1 stands for ##STR6## (wherein R 2 stands for a hydrogen atom, an alkyl group or a phenyl group and R 3 stands for a hydrogen atom or a lower alkyl group)]; (b) 5 to 50 wt. % of a photopolymerizable oligomer which has an average molecular weight in the range of 200 to 4000 and has 2 or more of acryloyl groups or methacryloyl groups in a molecule; (c) 5 to 50 wt. % of vinyl monomer having 1 or more of acryloyl groups or methacryloyl groups which are liquid at 50° C.; (d) 0.5 to 5 wt. % of a photo-initiator which acts to initiate a cross-linking reaction between said photopolymerizable oligomer and said vinyl monomer when subjected to activated radiation; and (e) 5 to 60 wt. % of an inorganic filler.
Claim 2
Dependent Claim
157 words
A photopolymerizable composition which comprises: (a) 0.1 to 5.0 wt. % of a s-triazine compound represented by general formula I: ##STR5## [wherein R 1 stands for ##STR6## (wherein R 2 stands for a hydrogen atom, an alkyl group or a phenyl group and R 3 stands for a hydrogen atom or a lower alkyl group)]; (b) 5 to 50 wt. % of a photopolymerizable oligomer which has an average molecular weight in the range of 200 to 4000 and has 2 or more of acryloyl groups or methacryloyl groups in a molecule; (c) 5 to 50 wt. % of vinyl monomer having 1 or more of acryloyl groups or methacryloyl groups which are liquid at 50° C.; (d) 0.5 to 5 wt. % of a photo-initiator which acts to initiate a cross-linking reaction between said photopolymerizable oligomer and said vinyl monomer when subjected to activated radiation; and (e) 5 to 60 wt. % of an inorganic filler.
Claim 3
Dependent Claim
57 words
A photopolymerizable composition according to claim 1 wherein said (a) s-triazine compound is the one represented by the general formula I [wherein R 1 stands for ##STR7## (wherein R 4 stands for a methyl group, an ethyl group, a dodecyl group or a phenyl group, and R 5 stands for a hydrogen atom or a methyl group)].
Claim 4
Dependent Claim
20 words
A photopolymerizable composition according to claim 1 wherein said (a) s-triazine compound is 2,4-diamino-6-pyridyl-s-triazine, 2,4-diamino-6-[2-methyl-(1-imidazolyl)]ethyl-s-triazine, 2,4-diamino-6-[2,4-dimethyl-(1-imidazolyl)]ether-s-triazine, 2,4-diamino-6-[2-ethyl-(1-imidazolyl)]ethyl-s-triazine, 2,4-diamino-6-[2-phenyl-(1-imidazolyl)]ethyl-s-triazine or 2,4-diamino-6-[2-dodecyl-(1-imidazolyl)]ethyl-s-triazine.
Claim 5
Dependent Claim
18 words
A photopolymerizable composition according to claim 1 wherein said (a) s-triazine compound is 2,4-diamino-6-(4-pyridyl)-s-triazine, 2,4-diamino-6-[2-methyl-(1-imidazolyl)]ethyl-s-triazine, 2,4-diamino-6-[2,4-dimethyl-(1-imidazolyl)]ethyl-s-triazine, or 2,4-diamino-6-[2-phenyl-(1-imidazolyl)]ethyl-s-triazine.
Claim 6
Dependent Claim
23 words
A photopolymerizable composition according to claim 1 wherein said (a) s-triazine compound is contained in an amount of 0.2 to 1.0 wt. %.
Claim 7
Dependent Claim
17 words
A photopolymerizable composition according to claim 1 wherein said (b) oligomer is epoxy acrylate or epoxy methacrylate.
Claim 8
Dependent Claim
17 words
A photopolymerizable composition according to claim 1 wherein said (b) oligomer is urethane acrylate or urethane methacrylate.
Claim 9
Dependent Claim
16 words
A photopolymerizable composition according to claim 1 wherein said (c) vinyl monomer is acrylate or methacrylate.
Claim 10
Dependent Claim
27 words
A photopolymerizable composition according to claim 1 wherein said (e) inorganic filler is silica, calcium carbonate, clay, talc, barium sulfate, barium carbonate, alumina, hydrated alumina or mica.
Claim 11
Dependent Claim
19 words
A photopolymerizable composition according to claim 1 which is used as a solder resist for a printed circuit board.
Claim 12
Dependent Claim
175 words
A photopolymerizable composition which comprises: (a) 0.1 to 5.0 wt. % of a S-triazine compound represented by the general formula I: ##STR8## [wherein R 1 stands for ##STR9## (wherein R 2 stands for a hydrogen atom, an alkyl group or a phenyl group and R 3 stands for a hydrogen atom or a lower alkyl group)]; (b) 5 to 50 wt. % of a photopolymerizable oligomer which has an average molecular weight in the range of 200 to 4000 and has 2 or more of acryloyl groups or methacryloyl groups in a molecule, said oligomer being selected from the group consisting of epoxyacrylate, epoxymethacrylate, urethane acrylate and urethane methacrylate; (c) 5 to 50 wt. % of acrylate monomer or methacrylate monomer having 1 or more of acryloyl groups or methacryloyl groups which are liquid at 50° C.; (d) 0.5 to 5 wt. % of a photo-initiator which acts to initiate a cross-linking reaction between said photopolymerizable oligomer and said acrylate monomer or methacrylate monomer; and (e) 5 to 60 wt. % of an inorganic filler.
Claim 13
Dependent Claim
175 words
A photopolymerizable composition which comprises: (a) 0.1 to 5.0 wt. % of a S-triazine compound represented by the general formula I: ##STR8## [wherein R 1 stands for ##STR9## (wherein R 2 stands for a hydrogen atom, an alkyl group or a phenyl group and R 3 stands for a hydrogen atom or a lower alkyl group)]; (b) 5 to 50 wt. % of a photopolymerizable oligomer which has an average molecular weight in the range of 200 to 4000 and has 2 or more of acryloyl groups or methacryloyl groups in a molecule, said oligomer being selected from the group consisting of epoxyacrylate, epoxymethacrylate, urethane acrylate and urethane methacrylate; (c) 5 to 50 wt. % of acrylate monomer or methacrylate monomer having 1 or more of acryloyl groups or methacryloyl groups which are liquid at 50° C.; (d) 0.5 to 5 wt. % of a photo-initiator which acts to initiate a cross-linking reaction between said photopolymerizable oligomer and said acrylate monomer or methacrylate monomer; and (e) 5 to 60 wt. % of an inorganic filler.
Claim 14
Dependent Claim
57 words
A photopolymerizable composition according to claim 11 wherein said (a) s-triazine compound is the one represented by the general formula I [wherein R 1 stands for ##STR10## (wherein R 4 stands for a methyl group, an ethyl group, a dodecyl group or a phenyl group, and R 5 stands for a hydrogen atom or a methyl group)].
Claim 15
Dependent Claim
20 words
A photopolymerizable composition according to claim 11 wherein said (a) s-triazine compound is 2,4-diamino-6-pyridyl-s-triazine, 2,4-diamino-6-[2-methyl-(1-imidazolyl)]ethyl-s-triazine, 2,4-diamino-6-[2,4-dimethyl-(1-imidazolyl)]ethyl-s-triazine, 2,4-diamino-6-[2-ethyl-(1-imidazolyl)]ethyl-s-triazine, 2,4-diamino-6-[2-phenyl-(1-imidazolyl)]ethyl-s-triazine, or 2,4-diamino-6-[2-dodecyl-(1-imidazolyl)]ethyl-s-triazine.
Claim 16
Dependent Claim
16 words
A photopolymerizable composition according to claim 11 wherein said (a) s-triazine compound is 2,4-diamino-6-(4-pyridyl)-s-triazine, 2,4-diamino-6-[2-methyl-(1-imidazolyl)]ethyl-s-triazine, 2,4-diamino-6-[2,4-dimethyl-(1-imidazolyl)]ethyl-s-triazine.
Claim 17
Dependent Claim
23 words
A photopolymerizable composition according to claim 11 wherein said (a) s-triazine compound is contained in an amount of 0.2 to 1.0 wt. %.
Claim 18
Dependent Claim
17 words
A photopolymerizable composition according to claim 11 wherein said (b) oligomer is epoxy acrylate or epoxy methacrylate.
Claim 19
Dependent Claim
26 words
A photopolymerizable composition according to claim 11 wherein said inorganic filler is silica, calcium carbonate, clay, talc, barium sulfate, barium carbonate, alumina, hydrated alumina or mica.
Claim 20
Dependent Claim
19 words
A photopolymerizable composition according to claim 11 which is used as a solder resist for a printed circuit board.
References Cited (Backward Citations)
US4262072A
Cited
US4323591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |