Patent US4886890A successfully refreshed from Google Patents.
US4886890A
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Diquarternary nitrogen compounds
Assignee: ISP Investments LLC
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Filing: 1988-09-29
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Granted: 1989-12-12
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Expires: 2008-09-29
Abstract
Abstract This invention relates to quaternary compounds having the formula ##STR1## wherein W - is an anion; m and n are integers having a value of from 1 to 4; R is alkylene having from 3 to 8 carbon atoms; R 1 is a radical having from 8 to 25 carbon atoms and is selected from the group of alkyl, alkenyl and alkoxy alkylene and each of R 2 , R 3 and R 4 is a radical having from 1 to 25 carbon atoms and is alkyl, alkoxy or ##STR2## where p has a value of from 1 to 4 and X is hydrogen or methyl. The invention also relates to the preparation and use of said diquaternized compounds.
Inventors
- 👤 Ratan K. Chaudhuri
- 👤 David J. Tracy
- 👤 Robert B. Login
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:52
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/263; C07D211/00; C07D211/04; C07D211/68; C07D211/72; C07D211/74; C07D211/76; C07D223/00; C07D223/02; C07D223/06; C07D223/08; C07D223/10; C07D225/00; C07D225/02; C07D227/00; C07D227/02; C07D227/06; C07D227/08; C07D227/087
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
102 words
The diquaternized compound having the formula ##STR6## wherein W - is an anion; m and n are integers having a value from 1 to 4; R is alkylene having from 3 to 8 carbon atoms; R 1 is a radical having from 8 to 25 carbon atoms and is selected from the group of alkyl, alkenyl and alkoxy alkylene and each of R 2 , R 3 and R 4 is a radical having from 1 to 25 carbon atoms and is alkyl, alkoxy or ##STR7## where p has a value of from 1 to 4 and X is hydrogen or methyl.
Claim 2
Dependent Claim
102 words
The diquaternized compound having the formula ##STR6## wherein W - is an anion; m and n are integers having a value from 1 to 4; R is alkylene having from 3 to 8 carbon atoms; R 1 is a radical having from 8 to 25 carbon atoms and is selected from the group of alkyl, alkenyl and alkoxy alkylene and each of R 2 , R 3 and R 4 is a radical having from 1 to 25 carbon atoms and is alkyl, alkoxy or ##STR7## where p has a value of from 1 to 4 and X is hydrogen or methyl.
Claim 3
Dependent Claim
47 words
The diquaternized compound of claim 1 wherein R 1 is a radical having from 8 to 18 carbon atoms and is alkyl or alkoxy alkylene; at least one of R 2 , R 3 and R 4 is lower alkyl and m has a value of 1.
Claim 4
Dependent Claim
34 words
The diquaternized compound of claim 2 wherein each of R 2 , R 3 and R 4 is lower alkyl and W - is a chlorine, bromine, iodine, p-tosylate or lower alkyl sulfate anion.
Claim 5
Dependent Claim
12 words
The diquaternized compound of claim 1 which is N,N,N'-trimethyl-N'-octadecyl bis(pyrrolidonylmethyl)-1,3-propylene diammonium chloride.
Claim 6
Dependent Claim
11 words
The diquaternized compound of claim 1 which is N,N,N'-trimethyl-N'-dodecyl-bis(pyrrolidonylmethyl)-1,2-ethylene diammonium chloride.
Claim 7
Dependent Claim
12 words
The diquaternized compound of claim 1 which is N,N,N'-trimethyl-N'-nonyl bis(pyrrolidonylmethyl)-1,2-ethylene diammonium chloride.
References Cited (Backward Citations)
US2933529A
Cited
US4174443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-11 | 1993-06-12 | 1993-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-11 | 1997-06-12 | 1997-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-11 | 2001-06-12 | 2001-12-12 | $7700.00 | Window Closed / Lapsed |