Patent US4407759A successfully refreshed from Google Patents.
US4407759A
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Photoinitiators
Assignee: General Electric Co
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Filing: 1981-12-10
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Granted: 1983-10-04
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Expires: 2001-12-10
Abstract
Abstract Onium salts of Group VIa elements having an MF 6 - anion, where M is selected from P, As and Sb, have been found to be photo active under ultraviolet light. These onium salts can be employed as cationic photoinitiators when used with a variety of organic resins and cyclic organic compounds.
Inventors
- 👤 James V. Crivello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:51
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C07; C07C; C07C381/00; C07C381/12
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
69 words
A Group VIa onium salt having an MF 6 anion, where M is selected from phosphorous, arsenic and antimony, and a sulfur containing cation whose valence of three is satisfied by hydroxy substituted C.sub.(6-20) monovalent aromatic organic radical and two radicals selected from C.sub.(1-8) alkyl, cycloalkyl, --C 2 H 4 OCH 3 , --CH 2 COOC 2 H 5 , --CH 2 COCH 3 , and a mixture thereof.
Claim 2
Dependent Claim
69 words
A Group VIa onium salt having an MF 6 anion, where M is selected from phosphorous, arsenic and antimony, and a sulfur containing cation whose valence of three is satisfied by hydroxy substituted C.sub.(6-20) monovalent aromatic organic radical and two radicals selected from C.sub.(1-8) alkyl, cycloalkyl, --C 2 H 4 OCH 3 , --CH 2 COOC 2 H 5 , --CH 2 COCH 3 , and a mixture thereof.
Claim 3
Dependent Claim
64 words
A Group VIa onium salt having an MF 6 anion, where M is selected from phosphorous, arsenic and antimony, and a sulfur containing cation whose valence of 3 is satisfied by phenylacryl radical and two radicals selected from C.sub.(1-8) alkyl, cycloalkyl, --C 2 H 4 OCH 3 , --CH 2 COOC 2 H 5 , --CH 2 COCH 3 , and a mixture thereof.
Claim 4
Dependent Claim
64 words
A Group VIa onium salt having an MF 6 anion, where M is selected from phosphorous, arsenic and antimony, and a sulfur containing cation whose valence of 3 is satisfied by phenylacryl radical and two radicals selected from C.sub.(1-8) alkyl, cycloalkyl, --C 2 H 4 OCH 3 , --CH 2 COOC 2 H 5 , --CH 2 COCH 3 , and a mixture thereof.
Claim 5
Dependent Claim
6 words
A photoinitiator having the formula, ##STR74##
Claim 6
Dependent Claim
6 words
A photoinitiator having the formula, ##STR74##
Claim 7
Dependent Claim
6 words
A photoinitiator having the formula, ##STR75##
Claim 8
Dependent Claim
6 words
A photoinitiator having the formula, ##STR75##
Claim 9
Dependent Claim
6 words
A photoinitiator having the formula, ##STR76##
Claim 10
Dependent Claim
6 words
A photoinitiator having the formula, ##STR76##
Claim 11
Dependent Claim
6 words
A photoinitiator having the formula, ##STR77##
Claim 12
Dependent Claim
6 words
A photoinitiator having the formula, ##STR77##
Claim 13
Dependent Claim
6 words
A photoinitiator having the formula, ##STR78##
Claim 14
Dependent Claim
6 words
A photoinitiator having the formula, ##STR78##
Claim 15
Dependent Claim
6 words
A photoinitiator having the formula, ##STR79##
Claim 16
Dependent Claim
6 words
A photoinitiator having the formula, ##STR79##
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |