US4293675A
Expired / Lapsed
US
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Antimony halide-organic phosphonate ester cationic polymerization catalysts
Assignee: 3M Co
•
Filing: 1980-02-26
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Granted: 1981-10-06
•
Expires: 2000-02-26
Abstract
Abstract The complex formed between a tri-or pentavalent antimony halide and an organic phosphate ester has been found to be an effective catalyst for cationic polymerization reactions.
Inventors
- 👤 Robert J. Blachunis
- 👤 Stephen W. Bany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:32
CPC Classifications
C; C08; C08G; C08G85/00; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1845; B01J31/185; C07; C07F; C07F9/00; C07F9/02; C08F; C08F4/00; C08G4/00; C08G59/00; C08G59/18; C08G59/68; C08G59/688; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/269; C08G77/00; C08G77/04; C08G77/06; C08G77/08; B01J2531/00; B01J2531/50; B01J2531/52
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
69 words
A method for polymerizing at least one cationically polymerizable organic monomer the method comprising: (a) admixing with said organic monomer a catalytically effective amount of a trivalent or pentavalent antimony halide-organic phosphorus ester complex catalyst of the formula: ##STR14## wherein R 2 and R 3 are independently selected from phenyl, alkenyl, halogenated alkyl, or alkyl of one to 18 carbon atoms, and (b) effecting polymerization of said organic monomer.
Claim 2
Independent Claim
69 words
A method for polymerizing at least one cationically polymerizable organic monomer the method comprising: (a) admixing with said organic monomer a catalytically effective amount of a trivalent or pentavalent antimony halide-organic phosphorus ester complex catalyst of the formula: ##STR14## wherein R 2 and R 3 are independently selected from phenyl, alkenyl, halogenated alkyl, or alkyl of one to 18 carbon atoms, and (b) effecting polymerization of said organic monomer.
Claim 3
Dependent Claim
22 words
The method according to claim 1 wherein said organic monomer is selected from vicinal epoxides, vinyl ethers, n-vinyl compounds, acetals, and alkoxysilanes.
Claim 4
Dependent Claim
15 words
The method according to claim 1 wherein the organic material is the epoxypolysiloxane monomer ##STR15##
Claim 5
Dependent Claim
17 words
The method according to claim 1 wherein the organic monomer is the diglycidyl ether of Bisphenol A.
Claim 6
Dependent Claim
13 words
The method according to claim 1 wherein the organic monomer is N-vinyl pyrrolidinone.
Claim 7
Dependent Claim
12 words
The method according to claim 1 wherein the organic monomer is trioxane.
Claim 8
Dependent Claim
12 words
The method according to claim 1 wherein the organic monomer is gamma(2,3-epoxypropoxy)propyltrimethoxysilane.
Claim 9
Dependent Claim
13 words
The method according to claim 1 wherein the organic monomer is beta(3,4-epoxycyclohexyl)ethyl trimethoxysilane.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |