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US4483941A
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Catalysts for alkoxylation reactions
Assignee: Vista Chemical Co
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Filing: 1982-09-02
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Granted: 1984-11-20
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Expires: 2002-09-02
Abstract
Abstract Catalysts producing a sharply peaked alkoxylation distribution during the alkoxylation of organic materials comprise mixtures of BF 3 and metal alkyls or metal alkoxides, SiF 4 and metal alkyls or metal alkoxides, or mixtures of these catalysts.
Inventors
- 👤 Kang Yang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:46
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/269; B; B01; B01J; B01J27/00; B01J27/06; B01J27/08; B01J27/12; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; C07; C07C; C07C41/00; C07C41/01; C07C41/02; C07C41/03; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/70; C07C45/71; C07C51/00; C07C51/347; C07C51/367; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/12; C08G65/2645; C08G65/2654
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
74 words
Catalysts for alkoxylation reactions comprising at least one material selected from the group consisting of mixtures of BF 3 and metal alkoxides, mixtures of SiF 4 and metal alkoxides, or mixtures of these, wherein the metal alkoxides have the general formula M(OR) n wherein each R is, independently, alkyl groups containing from 1 to 20 carbon atoms, M is aluminum or titanium, and n is 3 or 4 depending on the valence of M.
Claim 2
Dependent Claim
74 words
Catalysts for alkoxylation reactions comprising at least one material selected from the group consisting of mixtures of BF 3 and metal alkoxides, mixtures of SiF 4 and metal alkoxides, or mixtures of these, wherein the metal alkoxides have the general formula M(OR) n wherein each R is, independently, alkyl groups containing from 1 to 20 carbon atoms, M is aluminum or titanium, and n is 3 or 4 depending on the valence of M.
Claim 3
Dependent Claim
188 words
A catalyst as described in claim 1 when selected from the group consisting of BF 3 /(C 2 H 5 O) 3 Al; BF 3 /(CH 3 O) 3 Al; SiF 4 /(C 2 H 5 O)Al; SiF 4 /(CH 3 O) 3 Al; BF 3 /(CH 3 O) 2 (C 2 H 5 O)Al; SiF 4 /(CH 3 O) 2 (C 2 H 5 O)Al; SiF 4 /(CH 3 O)(C 2 H 5 O) 2 Al; BF 3 /(CH 3 O) 3 Al; BF 3 /(C 2 H 5 O) 3 Al; BF 3 /(C 20 H 41 O) 3 Al; BF 3 /(C 2 H 5 O) 4 Ti; BF 3 /(CH 3 O) 4 Ti; SiF 4 /(C 2 H 5 O) 4 Ti; SiF 4 /(CH 3 O) 4 Ti; BF 3 /(CH 3 O) 2 (C 2 H 5 O) 2 Ti; BF 3 /(CH 3 O)(C 2 H 5 O) 3 Ti; SiF 4 /(CH 3 O) 2 (C 2 H 5 O) 2 Ti; BF 3 /(CH 3 O) 4 Ti; and BF 3 /(C 20 H 41 O) 4 Ti.
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) | 1987-11-20 | 1988-05-21 | 1988-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-20 | 1992-05-21 | 1992-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-20 | 1996-05-21 | 1996-11-20 | $7700.00 | Window Closed / Lapsed |