US4139459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quinolizinium anion exchange resins and monomers and methods for making them
Assignee: Rohm and Haas Co
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Filing: 1977-06-22
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Granted: 1979-02-13
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Expires: 1997-06-22
Abstract
Abstract Quinolizinium resins may be produced by quaternizing substituted vinyl pyridine polymers followed by subjecting the resulting product to a condensation reaction to obtain quinolizinium functionality. The resins are useful as ion exchange resins, adsorbents and catalysts.
Inventors
- 👤 Charles R. Costin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:23
CPC Classifications
C; C08; C08F; C08F26/00; C08F26/06; B; B01; B01J; B01J20/00; B01J20/22; B01J41/00; B01J41/08; B01J41/12; B01J41/13; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07D213/16; C07D213/20; C07D455/00; C07D455/02; C08F8/00; C08F8/44; Y; Y10; Y10S; Y10S526/00; Y10S526/923
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
49 words
A vinyl quinolizinium anion exchange resin polymer produced by quaternizing substituted vinyl pyridine polymer or polymerizing a prefunctionalized vinyl quinolizinium monomer in which the vinyl group, --CH═CH 2 , is bonded directly to a quinolizinium ring carbon atom, in either case optionally including a crosslinking comonomer in the polymerization.
Claim 2
Dependent Claim
49 words
A vinyl quinolizinium anion exchange resin polymer produced by quaternizing substituted vinyl pyridine polymer or polymerizing a prefunctionalized vinyl quinolizinium monomer in which the vinyl group, --CH═CH 2 , is bonded directly to a quinolizinium ring carbon atom, in either case optionally including a crosslinking comonomer in the polymerization.
Claim 3
Dependent Claim
47 words
The anion exchange resin polymer of claim 1 in which the polymer has the following formula: ##STR3## wherein R 1 , R 2 , and R 3 are independently selected from hydrogen, lower alkyl phenyl, substituted lower alkyl, alkoxy and cyano and X is a negative counterion.
Claim 4
Dependent Claim
26 words
The anion exchange resin of claim 2 wherein R 1 = H, R 2 and R 3 = CH 3 and X is Br - .
Claim 5
Dependent Claim
19 words
The anion exchange resin of claim 2 wherein R 1 , R 2 , and R 3 are hydrogen.
Claim 6
Dependent Claim
21 words
The anion exchange resin of claim 2 wherein R 1 = CH 3 and R 2 and R 3 = hydrogen.
Claim 7
Dependent Claim
20 words
The anion exchange resin of claim 2 wherein R 1 = CN and R 2 and R 3 are hydrogen.
Claim 8
Independent Claim
99 words
A method of preparing a quinolizinium resin which comprises quaternizing with a compound of the formula: ##STR4## A substituted vinyl pyridine polymer and subjecting the resulting product to a condensation reaction with a compound of the formula: ##STR5## to obtain the resin having quinolizinium functionality, where R 1 is any activating group and may be alkoxy, carbonyl or cyano; where R 2 and R 3 are hydrogen, lower alkyl, phenyl, substituted lower alkyl, alkoxy or cyano groups; where R 1 , R 2 and R 3 may be the same or different; and where x is hydroxyl or halogen.
Claim 9
Independent Claim
99 words
A method of preparing a quinolizinium resin which comprises quaternizing with a compound of the formula: ##STR4## A substituted vinyl pyridine polymer and subjecting the resulting product to a condensation reaction with a compound of the formula: ##STR5## to obtain the resin having quinolizinium functionality, where R 1 is any activating group and may be alkoxy, carbonyl or cyano; where R 2 and R 3 are hydrogen, lower alkyl, phenyl, substituted lower alkyl, alkoxy or cyano groups; where R 1 , R 2 and R 3 may be the same or different; and where x is hydroxyl or halogen.
Claim 10
Dependent Claim
25 words
An adsorption process which comprises using the quinolizinium polymeric composition of claim 1 as an adsorbent for silica from a liquid mixture comprising the same.
References Cited (Backward Citations)
US3794584A
Cited
US4018676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-12 | 1982-08-14 | 1983-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-12 | 1986-08-14 | 1987-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-12 | 1990-08-14 | 1991-02-13 | $7700.00 | Window Closed / Lapsed |