US4179400A
Expired / Lapsed
US
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Process for preparing catalytic solutions of sulfonium salts
Assignee: WR Grace and Co Conn
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Filing: 1979-01-25
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Granted: 1979-12-18
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Expires: 1999-01-25
Abstract
Abstract This invention relates to a process for preparing a catalytic solution of a sulfonium salt of a complex anion, capable of yielding a Lewis Acid when irradiated by UV or high energy ionizing radiation comprising reacting a sulfonium halide with an alkali metal salt of the complex anion in a solvent mixture containing a polyol having at least two hydroxy groups and a lactone.
Inventors
- 👤 Jung-Hsien Tsao
- 👤 Arthur D. Ketley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:45
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/0215; B01J31/0234; B01J31/0235; B01J31/0239; B01J31/26; B01J31/28; B01J35/00; B01J35/30; B01J35/39; C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/686; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/115
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
92 words
A process for preparing a photocatalytic solution of a sulfonium salt of a complex anion, capable of yielding a Lewis Acid when irradiated by UV light which comprises reacting a sulfonium halide with an alkali metal or ammonium salt of a complex anion in a solvent mixture containing a polyol containing at least two OH groups and a lactone of the formula: ##STR2## wherein R is H or CH 3 and n is 2 to 4, the weight ratio of sulfonium halide:polyol:lactone is in the range 1:1 to 5:1 to 20, respectively.
Claim 2
Dependent Claim
92 words
A process for preparing a photocatalytic solution of a sulfonium salt of a complex anion, capable of yielding a Lewis Acid when irradiated by UV light which comprises reacting a sulfonium halide with an alkali metal or ammonium salt of a complex anion in a solvent mixture containing a polyol containing at least two OH groups and a lactone of the formula: ##STR2## wherein R is H or CH 3 and n is 2 to 4, the weight ratio of sulfonium halide:polyol:lactone is in the range 1:1 to 5:1 to 20, respectively.
Claim 3
Dependent Claim
15 words
The process, according to claim 1, in which the sulfonium salt is triphenyl sulfonium chloride.
Claim 4
Dependent Claim
17 words
The process, according to claim 1, in which the alkali metal of ammonium salt is a fluoroborate.
Claim 5
Dependent Claim
17 words
The process, according to claim 1, in which the alkali metal or ammonium salt is a hexafluorophosphate.
Claim 6
Dependent Claim
71 words
The process, according to claim 1, wherein the complex anion is a member of the group consisting of BF 4 - , PF 6 - , AsF 6 - , SbF 6 - , FeCl 4 - , SnCl 6 - , SbCl 6 - , BiCl 5 -- , AlF 6 --- , GaCl 4 - , InF 4 - , TiF 6 -- , and ZrF 6 -- .
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) | 1982-12-17 | 1983-06-18 | 1983-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-17 | 1987-06-18 | 1987-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-17 | 1991-06-18 | 1991-12-18 | $7700.00 | Window Closed / Lapsed |