US4751102A
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US
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Radiation-curable ink and coating compositions containing ionic dye compounds as initiators
Assignee: Eastman Kodak Co
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Filing: 1987-07-27
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Granted: 1988-06-14
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Expires: 2007-07-27
Abstract
Abstract The present invention provides radiation-curable ink compositions comprising pigment and a photohardenable composition; the photohardenable composition comprises a free radical addition polymerizable or crosslinkable compound and an ionic dye-reactive counter ion compound which is capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of the polymerizable or crosslinkable compound.
Inventors
- 👤 Paul C. Adair
- 👤 Michael J. Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:45
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/101; C09B; C09B11/00; C09B11/04; C09B11/10; C09B11/22; C09B17/00; C09B17/02; C09B21/00; C09B23/00; C09B23/0008; C09B23/02; C09B23/04; C09B23/06; C09B23/08; C09B23/086; C09D4/00
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
50 words
A radiation-curable composition comprising a colorant, a free radical addition polymerizable or crosslinkable compound, and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound.
Claim 2
Dependent Claim
50 words
A radiation-curable composition comprising a colorant, a free radical addition polymerizable or crosslinkable compound, and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound.
Claim 3
Dependent Claim
20 words
The composition of claim 1 wherein prior to exposure, said ionic dye-reactive counter ion compound is a stable, non-transient compound.
Claim 4
Dependent Claim
50 words
The composition of claim 2 wherein following exposure of said ionic dye-reactive counter ion compound to light, an electron is transferred from said dye to said counter ion or from said counter ion to said dye and the rate of said electron transfer is greater than a diffusion controlled rate.
Claim 5
Dependent Claim
60 words
The composition of claim 3 wherein said ionic dye-reactive counter ion compound is represented by the formula ##STR37## where D + is a cationic dye; and R 1 , R 2 , R 3 , and R 4 are independently selected from the group consisting of alkyl, aryl, alkaryl, allyl, aralkyl, alkenyl, alkynyl, alicyclic, and saturated or unsaturated heterocyclic groups.
Claim 6
Dependent Claim
13 words
The composition of claim 4 wherein said cationic dye is a cyanine dye.
Claim 7
Dependent Claim
13 words
The composition of claim 1 wherein said compound is an anionic dye compound.
Claim 8
Dependent Claim
20 words
The composition of claim 6 wherein said anionic dye is selected from the group consisting of xanthene and oxonol dyes.
Claim 9
Dependent Claim
16 words
The composition of claim 1 wherein said polymerizable or crosslinkable compound is an ethylenically unsaturated compound.
Claim 10
Dependent Claim
24 words
The composition of claim 6 wherein said ionic dye-reactive counter ion compound is an anionic dye-iodonium ion complex or an anionic dye-pyryllium ion complex.
Claim 11
Dependent Claim
12 words
The composition of claim 9 wherein said dye is a xanthene dye.
Claim 12
Independent Claim
78 words
A method of coating or printing comprising the steps of: coating or printing on a substrate with a radiation-curable ink composition comprising a colorant, a free radical addition polymerizable or crosslinkable compound, and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound; and exposing said coated or printed substrate to actinic radiation.
Claim 13
Independent Claim
78 words
A method of coating or printing comprising the steps of: coating or printing on a substrate with a radiation-curable ink composition comprising a colorant, a free radical addition polymerizable or crosslinkable compound, and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound; and exposing said coated or printed substrate to actinic radiation.
Claim 14
Dependent Claim
20 words
The method of claim 11 wherein prior to exposure, said ionic dye-reactive counter ion compound is a stable, non-transient compound.
Claim 15
Dependent Claim
50 words
The method of claim 12 wherein following exposure of said ionic dye-reactive counter ion compound to radiation, an electron is transferred from said dye to said counter ion or from said counter ion to said dye and the rate of said electron transfer is greater than a diffusion controlled rate.
Claim 16
Dependent Claim
60 words
The method of claim 13 wherein said ionic dye-reactive counter ion compound is represented by the formula ##STR38## where D + is a cationic dye; and R 1 , R 2 , R 3 , and R 4 are independently selected from the group consisting of alkyl, aryl, alkaryl, allyl, aralkyl, alkenyl, alkynyl, alicyclic, and saturated or unsaturated heterocyclic groups.
Claim 17
Dependent Claim
13 words
The method of claim 14 wherein said cationic dye is a cyanine dye.
Claim 18
Dependent Claim
17 words
The method of claim 11 wherein said ionic dye-reactive counter ion compound is an anionic dye complex.
Claim 19
Dependent Claim
13 words
The method of claim 16 wherein said anionic dye is a xanthene dye.
Claim 20
Dependent Claim
16 words
The method of claim 11 wherein said polymerizable or crosslinkable compound is an ethylenically unsaturated compound.
Claim 21
Dependent Claim
24 words
The method of claim 16 wherein said ionic dye-reactive counter ion compound is an anionic dye-iodonium ion compound or an anionic dye-pyryllium ion compound.
Claim 22
Dependent Claim
12 words
The method of claim 19 wherein said dye is a xanthene dye.
References Cited (Backward Citations)
US3567453A
Cited
US3933509A
Cited
US4307182A
Cited
US4343891A
Cited
US4447521A
Cited
US4450227A
Cited
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| 3.5 Years (Year 4) | 1991-06-14 | 1991-12-14 | 1992-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-14 | 1995-12-14 | 1996-06-14 | $3760.00 | Window Closed / Lapsed |
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