Patent US4603215A successfully refreshed from Google Patents.
US4603215A
Expired / Lapsed
US
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Platinum (O) alkyne complexes
Assignee: Dow Silicones Corp
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Filing: 1984-08-20
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Granted: 1986-07-29
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Expires: 2004-08-20
Abstract
Abstract A simplified method of manufacture for platinum (O) alkyne complexes is disclosed, as well as novel platinum (O) alkyne complexes per se. The complexes are made by reacting platinum-vinylsiloxane complexes with alkynes. The complexes are used in hydrosilylation, hydrogenation, isomerization and oligomerization reactions. Curable silicones using these platinum (O) alkyne complexes as curing catalysts are also disclosed.
Inventors
- 👤 Grish Chandra
- 👤 Peter Y. K. Lo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:15
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/0006; C07F15/0086; C08; C08K; C08K5/00; C08K5/56
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
9 words
The platinum (O) alkyne complex having the formula ##STR22##
Claim 2
Dependent Claim
9 words
The platinum (O) alkyne complex having the formula ##STR22##
Claim 3
Dependent Claim
9 words
The platinum (O) alkyne complex having the formula ##STR23##
Claim 4
Dependent Claim
9 words
The platinum (O) alkyne complex having the formula ##STR23##
References Cited (Backward Citations)
US4098807A
Cited
US4469638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |