US4450279A
Expired / Lapsed
US
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Dialkylthioxanthones
Assignee: Nippon Kayaku Co Ltd
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Filing: 1982-03-02
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Granted: 1984-05-22
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Expires: 2002-03-02
Abstract
Abstract The present invention relates to a dialkylthioxanthone compound of formula (I): ##STR1## wherein X and Y may be the same or different, and represent a straight-chain or branched alkyl group having 1-12 carbon atoms with a proviso that sum of carbon atoms of alkyl groups X and Y is in the range of 3-15; a process for producing said compound; a process for hardening a photopolymerizable resin compound having an ethylenically unsaturated double bond which is radically crosslinkable or polymerizable using the above compound; and a photopolymerizable resin composition containing the same.
Inventors
- 👤 Tsutomu Shirosaki
- 👤 Seiki Fukunaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:05
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; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/122; Y10S430/123
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
50 words
A dialkylthoxanthone compound of the general formula: ##STR13## wherein X and Y may be the same or different, and represent a straight-chain or branched alkyl group having 1-12 carbon atoms with a proviso that sum of carbon atoms of alkyl groups X and Y is in the range of 3-15.
Claim 2
Dependent Claim
50 words
A dialkylthoxanthone compound of the general formula: ##STR13## wherein X and Y may be the same or different, and represent a straight-chain or branched alkyl group having 1-12 carbon atoms with a proviso that sum of carbon atoms of alkyl groups X and Y is in the range of 3-15.
Claim 3
Dependent Claim
13 words
A dialkylthioxanthone compound according to claim 1 wherein X and Y are isopropyl.
Claim 4
Dependent Claim
13 words
A dialkylthioxanthone compound according to claim 1 wherein X and Y are ethyl.
Claim 5
Dependent Claim
20 words
A dialkylthioxanthone compound according to claim 1 wherein one of X and Y is methyl and the other is isopropyl.
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) | 1987-05-22 | 1987-11-21 | 1988-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-22 | 1991-11-21 | 1992-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-22 | 1995-11-21 | 1996-05-22 | $7700.00 | Window Closed / Lapsed |