US4474868A
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Photo polymerization initiator compositions having high sensitivity
Assignee: NOF Corp
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Filing: 1983-09-07
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Granted: 1984-10-02
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Expires: 2003-09-07
Abstract
Abstract A photo polymerization initiator composition is disclosed. The composition is comprised of an organic peroxide and a salt selected from the group consisting of pyrylium salts, thiapyrylium salts and selenopyrylium salts represented by the general formula (I): <IMAGE> the substituents are defined within the specification. By utilizing the disclosed photo polymerization initiator composition, it is possible to obtain high sensitivity even in the visible range of light.
Inventors
- 👤 Tsuguo Yamaoka
- 👤 Kenichi Koseki
- 👤 Yoshitaka Goto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:44
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/117; Y10S430/122; Y10S430/123
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
114 words
A photo polymerization initiator composition, comprising: an organic peroxide; and a salt selected from the group consisting of pyrylium salts, thiapyrylium salts and selenopyrylium salts represented by the general formula (I): ##STR3## wherein R 1 , R 2 and R 3 independently represent a hydrogen atom, an alkyl group, a haloalkyl group, an ethylenyl group, a styryl group, an alkoxy group, a phenyl group, a naphthyl group, an alkylphenyl group, an alkoxyphenyl group, a hydroxyphenyl group, a halophenyl group, a nitrophenyl group, an aminophenyl group, a nitro group, an amino group or a hydroxyl group, X represents an oxygen atom, a sulfur atom or a selenium atom, and Y represents an anion functional group.
Claim 2
Dependent Claim
114 words
A photo polymerization initiator composition, comprising: an organic peroxide; and a salt selected from the group consisting of pyrylium salts, thiapyrylium salts and selenopyrylium salts represented by the general formula (I): ##STR3## wherein R 1 , R 2 and R 3 independently represent a hydrogen atom, an alkyl group, a haloalkyl group, an ethylenyl group, a styryl group, an alkoxy group, a phenyl group, a naphthyl group, an alkylphenyl group, an alkoxyphenyl group, a hydroxyphenyl group, a halophenyl group, a nitrophenyl group, an aminophenyl group, a nitro group, an amino group or a hydroxyl group, X represents an oxygen atom, a sulfur atom or a selenium atom, and Y represents an anion functional group.
Claim 3
Dependent Claim
14 words
A photo polymerization initiator composition as claimed in claim 1, further comprising: a binder.
Claim 4
Dependent Claim
22 words
A photo polymerization initiator composition as claimed in claim 2, wherein the binder is a polymer containing a repeating unit of N-vinylpyrrolidone.
Claim 5
Dependent Claim
16 words
A photo polymerization initiator composition as claimed in claim 1, wherein X is an oxygen atom.
Claim 6
Dependent Claim
16 words
A photo polymerization initiator composition as claimed in claim 1, wherein X is a sulfur atom.
Claim 7
Dependent Claim
16 words
A photo polymerization initiator composition as claimed in claim 1, wherein X is a selenium atom.
Claim 8
Dependent Claim
63 words
A photo polymerization initiator composition as claimed in claim 1, wherein at least one of the R 1 , R 2 and R 3 represents a benzene ring-containing group selected from the group consisting of s styryl group, a phenyl group, a naphthyl group, an alkylphenyl group, an alkoxyphenyl group, a hydroxyphenyl group, a halophenyl group, a nitrophenyl group, and an aminophenyl group.
Claim 9
Dependent Claim
59 words
A photo polymerization initiator composition as claimed in claim 7, wherein R 1 , R 2 and R 3 are each a benzene ring-containing group selected from the group consisting of a styryl group, a phenyl group, a naphthyl group, an alkylphenyl group, an alkoxyphenyl group, a hydroxyphenyl group, a halophenyl group, a nitrophenyl group, and an aminophenyl group.
Claim 10
Dependent Claim
30 words
A photo polymerization initiator composition as claimed in claim 8, wherein R 1 , R 2 and R 3 are each an alkylphenyl group, an alkoxyphenyl or a phenyl group.
Claim 11
Dependent Claim
27 words
A photo polymerization initiator composition as claimed in claim 1, wherein Y is perchlorate, fluoroborate, chloroalminate, chloroferrate, sulfur acetate, methosulfate, thiocyanate, sulfate, nitrate, fluoroantimonate, fluorophosphonate, or acetate.
Claim 12
Dependent Claim
22 words
A photo polymerization initiator composition as claimed in claim 1, wherein Y is selected from the group consisting of perchlorate and fluoroborate.
Claim 13
Dependent Claim
31 words
A photo polymerization initiator composition as claimed in claim 1 wherein the ratio of the organic peroxides to the compounds represented by the formula (I) is 1 to 99:99 to 1.
Claim 14
Dependent Claim
19 words
A photo polymerization initiator composition as claimed in claim 12, wherein the ratio is 3 to 95:97 to 5.
Claim 15
Dependent Claim
24 words
A photo polymerization initiator composition as claimed in claim 2, wherein the binder has a molecular weight in the range of 1,000 to 1,000,000.
Claim 16
Dependent Claim
24 words
A photo polymerization initiator composition as claimed in claim 14, wherein the binder has a molecular weight in the range of 3,000 to 500,000.
Claim 17
Dependent Claim
27 words
A photo polymerization initiator composition as claimed in claim 3, wherein the N-vinylpyrrolidone is present in the binder in an amount of 5% by weight or more.
Claim 18
Dependent Claim
50 words
A photo polymerization initiator composition as claimed in claim 3, wherein the amount of the polymer containing a repeating unit of N-vinylpyrrolidone is 1 to 100 parts by weight based on 1 part by weight of the total of the organic peroxide and the compound represented by the formula (I).
Claim 19
Dependent Claim
45 words
A photo polymerization initiator composition as claimed in claim 1, wherein the total amount of the organic peroxide and the compound represented by the formula (I) is 0.1 to 40 parts by weight based on 100 parts by weight of a polymerizable ethylenically unsaturated compound.
Claim 20
Dependent Claim
47 words
A photo polymerization initiator composition as claimed in claim 2, wherein the total amount of the organic peroxide, the compound represented by the formula (I) and the binder is 50 to 200 parts by weight based on 100 parts by weight of the polymerizable ethylenically unsaturated compound.
Claim 21
Dependent Claim
20 words
A photo polymerization initiator composition as claimed in claim 1, wherein the organic peroxide is a benzoyl group-containing organic peroxide.
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) | 1987-10-02 | 1988-04-02 | 1988-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-02 | 1992-04-02 | 1992-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-02 | 1996-04-02 | 1996-10-02 | $7700.00 | Window Closed / Lapsed |