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US4075243A
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Polyquaternary ammonium methylene phosphonates
Assignee: Baker Petrolite LLC
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Filing: 1973-10-29
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Granted: 1978-02-21
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Expires: 1993-10-29
Abstract
Abstract Polyquaternary ammonium methylene phosphonates and uses thereof, particularly as scale inhibitors, chelating agents, bactericides, etc.
Inventors
- 👤 Patrick M. Quinlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:05
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3895; A; A01; A01N; A01N57/00; A01N57/18; C02; C02F; C02F1/00; C02F1/50; C02F5/00; C02F5/08; C02F5/10; C02F5/14; C07F9/3804; C07F9/3808; C07F9/3817
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
Polyquaternary ammonium methylene, or substituted methylene, phosphonates wherein all the methylene, or substituted methylene, phosphonate groups are of the formula ##STR67## and are nitrogen-bonded and wherein the quaternary nitrogens are present in the phosphonates as ##STR68## terminal groups and as ##STR69## internal groups when there are more than 2 nitrogen atoms, there being at least two of the terminal groups in each phosphonate compound, wherein the nitrogen atoms are linked together by bridging groups containing at least 2 carbon atoms in each of the bridge chains, where the groups R and the bridging groups are hydrocarbon or hydrocarbon containing ethereal or hydroxy oxygen, where the groups R' are R groups or ##STR70## groups, where the groups R" are hydrogen or hydrocarbon, where M is hydrogen or a salt moiety, and where X 31 is an anion.
Claim 2
Dependent Claim
136 words
Polyquaternary ammonium methylene, or substituted methylene, phosphonates wherein all the methylene, or substituted methylene, phosphonate groups are of the formula ##STR67## and are nitrogen-bonded and wherein the quaternary nitrogens are present in the phosphonates as ##STR68## terminal groups and as ##STR69## internal groups when there are more than 2 nitrogen atoms, there being at least two of the terminal groups in each phosphonate compound, wherein the nitrogen atoms are linked together by bridging groups containing at least 2 carbon atoms in each of the bridge chains, where the groups R and the bridging groups are hydrocarbon or hydrocarbon containing ethereal or hydroxy oxygen, where the groups R' are R groups or ##STR70## groups, where the groups R" are hydrogen or hydrocarbon, where M is hydrogen or a salt moiety, and where X 31 is an anion.
Claim 3
Dependent Claim
20 words
The polyquaternary phosphanates of claim 1 where each quaternary nitrogen terminal group contains 2 methylene or substituted methylene phosphonate groups.
Claim 4
Dependent Claim
50 words
The polyquaternaries of claim 1 having repeating units of the general formula ##STR71## where A is a bridging group as defined in claim 1, M is hydrogen, ammonium, ammonium form of amino or a metal, and X ia halogen, the metal being an alkali metal or an alkaline earth metal.
Claim 5
Dependent Claim
101 words
The polyquaternaries of claim 1 of the general formula ##STR72## where R is hydrogen containing up to 18 carbon atoms, C 2 H 4 OH, or C 3 H 6 OH, A is a bridging group as defined in claim 1 and is alkylene having 2 to 25 carbons, aralkylene having 8 to 30 carbons, alkylene ether, A(OA') n , where A is alkylene having 1 to 10 carbons, and n is 1 to 10, --CH 2 CH═CHCH 2 -- or --CH 2 --C.tbd.C--CH 2 --, and X is bromine, iodine or chlorine, and M is hydrogen, ammonium, sodium or potassium.
Claim 6
Dependent Claim
61 words
The polyquaternaries of claim 1 where each of the quaternary nitrogen terminal groups contains two methylene phosphonate groups, where R is hydrocarbon containing up to 12 carbon atoms, C 2 H 4 OH, or C 3 H 6 OH, where the bridging groups are ethylene or propylene, X is bromine, iodine or chlorine, and M is hydrogen, ammonium, sodium or potassium.
Claim 7
Dependent Claim
62 words
The polyquaternaries of claim 1 where one quaternary nitrogen terminal group is of the formula ##STR73## and the other is of the formula ##STR74## where R is hydrocarbon containing up to 12 carbon atoms or C 2 H 4 OH and the bridging groups are ethylene or propylene, X is bromine, iodine or chlorine, and M is hydrogen, ammonium, sodium or potassium.
Claim 8
Dependent Claim
85 words
The polyquaternaries of claim 1 of the general formula ##STR75## where A is a bridging group and is alkylene having 2 to 25 carbons, aralkylene having 8 to 30 carbons, alkylene ether, A(OA') n , where A' is alkylene having 1 to 10 carbons and n is 1 to 10, --CH 2 CH═CH.tbd.CHCH 2 --, or --CH 2 --C.tbd.C--CH 2 -- and R is hydrocarbon containing up to 18 carbon atoms, where X is bromine or chlorine and M is hydrogen, ammonium, sodium or potassium.
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) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |