US4238619A
Expired / Lapsed
US
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Method for making aryl onium salts of group via elements
Assignee: General Electric Co
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Filing: 1979-06-06
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Granted: 1980-12-09
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Expires: 1999-06-06
Abstract
Abstract A method is provided for making certain aryl onium salts of Group VIa elements useful as photoinitiators for polymerizing various organic materials. Reaction is effected between a compound of a Group VIa element, for example, an aryl or alkyl sulfide or a thiophenol or mercaptan and an aromatic iodonium salt in the presence of a copper compound catalyst or a copper compound-tertiary amine cocatalyst.
Inventors
- 👤 James V. Crivello
- 👤 Julia H. W. Lam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:10
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/105; C07; C07C; C07C381/00; C07C381/12; C07D; C07D327/00; C07D327/02; C07D327/06; C07D327/08; C07D333/00; C07D333/02; C07D333/46; C07D333/50; C07D333/76; C07D335/00; C07D335/04; C07D335/10; C07D335/12; C08G59/00; C08G59/18; C08G59/68
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
134 words
In a method for making aryl organic onium salts of a Group VIa element selected from the class consisting of sulfur and selenium which comprises reaction at temperatures exceeding 185° C., an aryl organic iodonium salt and an organic compound of the Group VIa element selected from aryl organic compounds, aliphatic organic compounds and cycloaliphatic organic compounds whereby extended reaction times are required and less than 60% yields of the aryl organic onium salt of the Group VIa element result, the improvement which comprises, effecting the reaction of the organic compound of the Group VIa element and the aryl organic iodonium salt in the presence of an effective amount of copper catalyst resulting in improved yields of the aryl organic onium salt of the Group VIa element at a reduced temperature and reaction time.
Claim 2
Dependent Claim
134 words
In a method for making aryl organic onium salts of a Group VIa element selected from the class consisting of sulfur and selenium which comprises reaction at temperatures exceeding 185° C., an aryl organic iodonium salt and an organic compound of the Group VIa element selected from aryl organic compounds, aliphatic organic compounds and cycloaliphatic organic compounds whereby extended reaction times are required and less than 60% yields of the aryl organic onium salt of the Group VIa element result, the improvement which comprises, effecting the reaction of the organic compound of the Group VIa element and the aryl organic iodonium salt in the presence of an effective amount of copper catalyst resulting in improved yields of the aryl organic onium salt of the Group VIa element at a reduced temperature and reaction time.
Claim 3
Dependent Claim
40 words
A method in accordance with claim 1, where the organic compound of the Group VIa element is an organic sulfur compound and the copper catalyst is in the form of a cocatalyst of a copper compound and a trialkyl amine.
Claim 4
Dependent Claim
14 words
A method in accordance with claim 1, which is carried out in the melt.
Claim 5
Independent Claim
35 words
A method for making triphenylsulfonium hexafluoroarsenate which comprises (A) effecting reaction between diphenyliodonium hexafluoroarsenate and diphenylsulfide in the presence of copper benzoate under melt conditions and (B) extracting the resulting product with an organic solvent.
Claim 6
Independent Claim
35 words
A method for making triphenylsulfonium hexafluoroarsenate which comprises (A) effecting reaction between diphenyliodonium hexafluoroarsenate and diphenylsulfide in the presence of copper benzoate under melt conditions and (B) extracting the resulting product with an organic solvent.
Claim 7
Dependent Claim
15 words
A method in accordance with claim 2, where the organic sulfur compound is a thiophenol.
Claim 8
Dependent Claim
16 words
A method in accordance with claim 2, where the organic sulfur compound is an alkyl mercaptan.
Claim 9
Independent Claim
44 words
A method for making triphenylsulfonium hexafluoroarsenate which comprises (A) effecting reaction between diphenyliodonium hexafluoroarsenate and thiophenol in the presence of an effective amount of a copper benzoate tri-n-butyl amine cocatalyst under melt conditions and (B) extracting the resulting crystalline product with an organic solvent.
Claim 10
Independent Claim
44 words
A method for making triphenylsulfonium hexafluoroarsenate which comprises (A) effecting reaction between diphenyliodonium hexafluoroarsenate and thiophenol in the presence of an effective amount of a copper benzoate tri-n-butyl amine cocatalyst under melt conditions and (B) extracting the resulting crystalline product with an organic solvent.
Claim 11
Independent Claim
19 words
A method for making 4-isopropylphenylphenoxanthylium hexafluoroarsenate, which comprises reaction 4,4'-diisopropyldiphenyliodonium hexafluoroarsenate and phenoxanthene in the presence of copper benzoate.
Claim 12
Independent Claim
19 words
A method for making 4-isopropylphenylphenoxanthylium hexafluoroarsenate, which comprises reaction 4,4'-diisopropyldiphenyliodonium hexafluoroarsenate and phenoxanthene in the presence of copper benzoate.
References Cited (Backward Citations)
US4047923A
Cited
US4058400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |