Patent US4292434A successfully refreshed from Google Patents.
US4292434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the addition of Si-bonded hydrogen to an aliphatic multiple bond
Assignee: TALBOT CARLSON Inc A CORP OF IA
•
Filing: 1980-11-10
•
Granted: 1981-09-29
•
Expires: 2000-11-10
Abstract
Abstract A process for the addition of Si-bonded hydrogen to an aliphatic multiple bond in the presence of a platinum catalyst which is obtained by dissolving a platinum halide in at least 20 parts by weight of olefin for each part by weight of the platinum halide, and subsequently heating and mixing the solution obtained with from 0.5 to 1 mole of a primary and/or secondary amine for each gram atom of platinum.
Inventors
- 👤 Tassilo Lindner
- 👤 Georg Engelsberger
- 👤 Norbert Zeller
- 👤 Rudolf Riedle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:27
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/14; C07F7/0801; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
94 words
An improved process for the addition of Si-bonded hydrogen to an aliphatic multiple bond in the presence of a platinum catalyst, the improvement which comprises carrying out said addition reaction in the presence of a catalyst solution obtained from the reaction of a platinum halide with at least 20 parts by weight of olefin for each part by weight of platinum halide, and thereafter heating the resultant solution with from 0.5 to 1 mole of an amine selected from the group consisting of a primary and secondary amine for each gram atom of platinum.
Claim 2
Dependent Claim
94 words
An improved process for the addition of Si-bonded hydrogen to an aliphatic multiple bond in the presence of a platinum catalyst, the improvement which comprises carrying out said addition reaction in the presence of a catalyst solution obtained from the reaction of a platinum halide with at least 20 parts by weight of olefin for each part by weight of platinum halide, and thereafter heating the resultant solution with from 0.5 to 1 mole of an amine selected from the group consisting of a primary and secondary amine for each gram atom of platinum.
Claim 3
Dependent Claim
17 words
The improved process of claim 1, wherein the platinum halide may also contain hydrogen and oxygen atoms.
Claim 4
Dependent Claim
12 words
The improved process of claim 1, wherein the halide is platinum tetrachloride.
Claim 5
Dependent Claim
53 words
The improved process of claims 1 or 3, wherein the solution obtained from the reaction of the platinum halide with at least 20 parts by weight of olefin for each part by weight of platinum, is heated to a temperature of from 60° to 120° C. for from 10 minutes to 5 hours.
Claim 6
Dependent Claim
14 words
The improved process of claims 1 or 3, wherein the amine is a sec-butylamine.
Claim 7
Dependent Claim
66 words
The improved process of claims 1 or 3, wherein the solution obtained from the reaction of a platinum halide is mixed with from 0.5 to 1 mole of an amine selected from the group consisting of primary and secondary amines per gram atom of platinum and heated at a temperature of from 40° to 100° C. over a period of from 10 minutes to 2 hours.
References Cited (Backward Citations)
US3099670A
Cited
US3057902A
Cited
US3153662A
Cited
GB923710A
Cited
US3178464A
Cited
US3159662A
Cited
US3410886A
Cited
US3925434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-28 | 1985-03-30 | 1985-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-28 | 1989-03-30 | 1989-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-28 | 1993-03-30 | 1993-09-29 | $7700.00 | Window Closed / Lapsed |