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US3856837A
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Silicon-containing complexes
Assignee: Dow Silicones UK Ltd
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Filing: 1973-02-01
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Granted: 1974-12-24
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Expires: 1993-02-01
Abstract
Abstract Complexes of nickel, palladium or platinum. The complexes also contain silicon and phosphorus and are useful as hydrosilylation, hydrogenation, polymerisation and isomerisation catalysts.
Inventors
- 👤 G Chandra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:23
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/04; C07F15/045; C07F15/0006; C07F15/006; C07F15/0066; C07F15/0086; C07F15/0093; C07F7/00; C07F7/02; C07F7/08; C07F7/0896; C07F7/12; C08; C08G; C08G77/00; C08G77/04; C08G77/38
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
5 words
A COMPLEX OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPLEX OF THE FORMULA
Claim 3
Dependent Claim
20 words
A complex as claimed in claim 1 wherein Q is selected from the group consisting of -CH2- and -CH2CH2- radicals.
Claim 4
Dependent Claim
21 words
A complex as claimed in claim 1 wherein R is selected from the group consisting of methyl radicals and phenyl radicals.
Claim 5
Dependent Claim
14 words
A complex as claimed in claim 1 wherein each X represents a chlorine atom.
References Cited (Backward Citations)
US3657373A
Cited
US3726809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |