US4602097A
Expired / Lapsed
US
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Water soluble photoinitiator benzophenone and thioxanthenone ethoxy-ether derivatives
Assignee: KIWO HOLDINGS Inc
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Filing: 1984-06-11
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Granted: 1986-07-22
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Expires: 2004-06-11
Abstract
Abstract Photoinitiators of the formula G--O--(CH.sub.2 CH.sub.2 O).sub.n --CH.sub.2 --CH.sub.2 --O--Q wherein G is a photoinitiator moiety, R is hydrogen or lower alkyl, n has a value of at least 10, and Q is G or a lower alkyl are soluble in water and common organic solvents and are useful in polymerization systems employed in coatings used in screen printing.
Inventors
- 👤 John R. Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:18
CPC Classifications
C; C07; C07D; C07D335/00; C07D335/04; C07D335/10; C07D335/12; C07D335/14; C07D335/16; 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; Y10S522/00; Y10S522/904
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
127 words
A water-soluble photoinitiator of the formula G--O--(CH.sub.2 CH.sub.2 O).sub.n --CH.sub.2 CH.sub.2 --O--Q wherein: G is a photoinitiator moiety selected from the group consisting of benzophenone, thioxanthenone and substituted derivatives of benzophenone and thioxanthenone, where the substituent is selected from the group consisting of alkyl, alkoxy, alkylthio, halogeno, nitro, amino, alkylamino, dialkylamino, alkanoyl, alkanoylamino, benzoylamino, and sulfonamido, wherein the alkyl group in the alkyl per se or in alkoxy, alkylthio, alkylamino, dialkylamino, alkanoyl, or alkanoylamino contains from 1 to 4 carbon atoms and may be straight chained or branched, n has a value of at least 10, and Q is G or a lower alkyl having from 1 to 4 carbon atoms, with the proviso that when Q is G, n has a value of at least 19.
Claim 2
Dependent Claim
127 words
A water-soluble photoinitiator of the formula G--O--(CH.sub.2 CH.sub.2 O).sub.n --CH.sub.2 CH.sub.2 --O--Q wherein: G is a photoinitiator moiety selected from the group consisting of benzophenone, thioxanthenone and substituted derivatives of benzophenone and thioxanthenone, where the substituent is selected from the group consisting of alkyl, alkoxy, alkylthio, halogeno, nitro, amino, alkylamino, dialkylamino, alkanoyl, alkanoylamino, benzoylamino, and sulfonamido, wherein the alkyl group in the alkyl per se or in alkoxy, alkylthio, alkylamino, dialkylamino, alkanoyl, or alkanoylamino contains from 1 to 4 carbon atoms and may be straight chained or branched, n has a value of at least 10, and Q is G or a lower alkyl having from 1 to 4 carbon atoms, with the proviso that when Q is G, n has a value of at least 19.
Claim 3
Dependent Claim
11 words
A water-soluble photoinitiator according to claim 1 where Q is G.
Claim 4
Dependent Claim
21 words
A water-soluble photoinitiator according to claim 1 wherein n is an integer having a value from about 19 to about 75.
Claim 5
Dependent Claim
12 words
A water soluble photoinitiator according to claim 3 wherein G is benzophenone.
Claim 6
Dependent Claim
73 words
A water-soluble photoinitiator according to claim 3 wherein G is a compound of the formula ##STR4## wherein R 1 is alkyl, alkoxy, alkylthio, halogeno, nitro, amino, alkylamino, dialkylamino, alkanoyl, alkanoylamino, benzoylamino, or sulfonamido, wherein the alkyl group in alkyl per se or in alkoxy, alkylthio, alkylamino, dialkylamino, alkanoyl, or alkanoylamino contains from 1 to 4 carbon atoms and may be straight chained or branched, and m is an integer from 0 to 2.
Claim 7
Dependent Claim
15 words
A water-soluble photoinitiator according to claim 5 wherein m is 0 and G is ##STR5##
Claim 8
Dependent Claim
16 words
A water-soluble photoinitiator according to claim 6 of the formula G--O--(CH.sub.2 CH.sub.2 O).sub.21-22 --CH.sub.2 CH.sub.2 --O--G.
Claim 9
Dependent Claim
16 words
A water-soluble photoinitiator according to claim 6 of the formula G--O--(CH.sub.2 CH.sub.2 O).sub.31-32 --CH.sub.2 CH.sub.2 --O--G.
Claim 10
Dependent Claim
16 words
A water-soluble photoinitiator according to claim 6 of the formula G--O--(CH.sub.2 CH.sub.2 O).sub.75 --CH.sub.2 CH.sub.2 --O--G.
Claim 11
Dependent Claim
16 words
A water-soluble photoinitiator according to claim 6 of the formula G--O--(CH.sub.2 CH.sub.2 O).sub.19 --CH.sub.2 CH.sub.2 --O--G.
Claim 12
Dependent Claim
16 words
A water-soluble photoinitiator according to claim 6 of the formula G--O--(CH.sub.2 CH.sub.2 O).sub.15 --CH.sub.2 CH.sub.2 --O--CH.sub.3.
Claim 13
Dependent Claim
11 words
A water-soluble photoinitiator according to claim 4 wherein P is ##STR6##
Claim 14
Dependent Claim
16 words
A water-soluble photoinitiator according to claim 12 of the formula G--O--(CH.sub.2 CH.sub.2 O).sub.15 --CH.sub.2 CH.sub.2 --O--CH.sub.3.
Claim 15
Dependent Claim
16 words
A water-soluble photoinitiator according to claim 12 of the formula G--O--(CH.sub.2 CH.sub.2 O).sub.21-22 --CH.sub.2 CH.sub.2 --O--G.
Claim 16
Dependent Claim
11 words
A water-soluble photoinitiator according to claim 4 wherein G is ##STR7##
Claim 17
Dependent Claim
16 words
A water-soluble photoinitiator according to claim 15 of the formula G--O--(CH.sub.2 CH.sub.2 O).sub.21-22 --CH.sub.2 CH.sub.2 --O--G.
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) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |