US3966637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalysts
Assignee: Bayer AG
•
Filing: 1974-11-12
•
Granted: 1976-06-29
•
Expires: 1994-11-12
Abstract
Abstract Catalysts obtained from A. a reaction product of 1 mol tungsten hexachloride with from 1 to 4 mols of a mixture of 2-chloroethanol and 2,2,2-trichloroethanol in a molar ratio of from 1 : 3 to 3 : 1; and B. from 1 to 20 mol, per mol of tungsten in component (A), of an organometallic aluminium for disproportionation and metathesis of olefin and for ring opening polymerizaton of cyclic olefins.
Inventors
- 👤 Josef Witte
- 👤 Gunther Lehnert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:18
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08; B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/16; B01J31/22; B01J31/2265; C07; C07C; C07C5/00; C07C5/22; C07C5/2206; C07C5/2266; C07C5/228; C07C6/00; C07C6/02; C07C6/04; C07C6/06; B01J2231/00; B01J2231/50; B01J2231/54; B01J2231/543; B01J2531/00; B01J2531/60; B01J2531/62; C07C2527/00; C07C2527/06; C07C2527/132; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/26; C07C2531/34; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
54 words
A catalyst composition comprising: A. a reaction product of 1 mol tungsten hexachloride with from 1 to 4 mols of a mixture of 2-chloroethanol and 2,2,2-trichloroethanol in a molar ratio of from 1:3 to 3:1; and B. from 1 to 20 mol, per mol of tungsten in component (A), of an organometallic aluminium compound.
Claim 2
Dependent Claim
54 words
A catalyst composition comprising: A. a reaction product of 1 mol tungsten hexachloride with from 1 to 4 mols of a mixture of 2-chloroethanol and 2,2,2-trichloroethanol in a molar ratio of from 1:3 to 3:1; and B. from 1 to 20 mol, per mol of tungsten in component (A), of an organometallic aluminium compound.
Claim 3
Dependent Claim
73 words
A catalyst composition as claimed in claim 1, in which component (B) is a compound corresponding to the following general formula: ##EQU5## wherein R.sub. 1 represents a C.sub. 1 -C.sub. 12 alkyl group; R 2 represents a C 1 -C 12 alkyl group, chlorine, bromine, or a C 1 -C 12 alkoxy group; R 3 represents a C 1 -C 12 alkyl group, chlorine, bromine, or a C 1 -C 12 alkoxy group.
Claim 4
Dependent Claim
48 words
A catalyst composition as claimed in claim 2, in which component (B) is aluminium trimethyl, aluminium triethyl, aluminium triisobutyl, dimethyl aluminium chloride, diethyl aluminium chloride, diisobutyl aluminium chloride, diethyl aluminium bromide, aluminium ethyl dichloride, ethoxy aluminium diethyl or a mixture of at least two of the above compounds.
Claim 5
Dependent Claim
32 words
A catalyst composition as claimed in claim 1 in which the mixture of 2-chloroethanol and 2,2,2-trichloroethanol is used in a quantity of from 1.5 to 2.5 mol per mol of tungsten hexachloride.
Claim 6
Dependent Claim
20 words
A catalyst composition as claimed in claim 1 in which the molar ratio of 2-chloroethanol to 2,2,2-trichloroethanol is about 1:1.
Claim 7
Dependent Claim
28 words
A catalyst composition as claimed in claim 1 in which component (B) is used in quantities of from 2 to 8 mol per mol tungsten in component (A).
Claim 8
Dependent Claim
28 words
A catalyst composition as claimed in claim 1, in which component (A) is the reaction product of 1 mol tungsten hexachloride, 1 mol 2-chloroethanol and 1 mol 2,2,2-trichloroethanol.
References Cited (Backward Citations)
US3631010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |