Patent US3680423A successfully refreshed from Google Patents.
Patent US3943255A successfully refreshed from Google Patents.
US3943255A
Expired / Lapsed
US
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Alkyl polymaine microbiocides
Assignee: ChampionX LLC
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Filing: 1974-05-22
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Granted: 1976-03-09
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Expires: 1994-05-22
Abstract
Abstract Active microbiocides prepared by reacting a long-chain N alkyl diamine such as cocodiamine in molar amounts with 0.5-3.0 moles of epichlorohydrin under controlled conditions and then terminating the active end groups by reacting with 0.5-3.0 moles of a tri lower alkylamine, such as trimethylamine. The poly quaternary nitrogen compounds produced are effective at 25 ppm levels in recirculating systems against bacteria, such as A. aerogenes. In inhibition tests these compounds have also proved effective against fungi, such as A. niger.
Inventors
- 👤 John D. Newkirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:21
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
53 words
A bactericidal or fungicidal composition comprising an aqueous carrier and a bactericidally or fungicidally effective amount of at least 25 ppm of a mixture of 1 mole of N-alkyl triethylene diamine where alkyl is C 6 -C 18 with 0.5-3.0 moles of epihalohydrin and subsequently quaternized with an excess of tri lower alkylamine.
Claim 2
Dependent Claim
53 words
A bactericidal or fungicidal composition comprising an aqueous carrier and a bactericidally or fungicidally effective amount of at least 25 ppm of a mixture of 1 mole of N-alkyl triethylene diamine where alkyl is C 6 -C 18 with 0.5-3.0 moles of epihalohydrin and subsequently quaternized with an excess of tri lower alkylamine.
Claim 3
Dependent Claim
18 words
The composition of claim 1 wherein the epihalohydrin is epichlorohydrin and alkyl is C 12 -C 16 .
Claim 4
Dependent Claim
11 words
The composition of claim 1 wherein the triethylene diamine is cocodiamine.
Claim 5
Dependent Claim
10 words
The composition of claim 1 wherein the trialkylamine is trimethylamine.
Claim 6
Independent Claim
61 words
A method of combatting bacteria or fungi in aqueous systems comprising applying to said bacteria or fungi a bactericidally or fungicidally effective amount of at least 25 ppm of a mixture of 1 mole of N-alkyl triethylene diamine where alkyl is C 6 -C 18 with 0.5-3.0 moles of epihalohydrin and subsequently quaternized with an excess of a tri lower alkylamine.
Claim 7
Independent Claim
61 words
A method of combatting bacteria or fungi in aqueous systems comprising applying to said bacteria or fungi a bactericidally or fungicidally effective amount of at least 25 ppm of a mixture of 1 mole of N-alkyl triethylene diamine where alkyl is C 6 -C 18 with 0.5-3.0 moles of epihalohydrin and subsequently quaternized with an excess of a tri lower alkylamine.
Claim 8
Dependent Claim
18 words
The method of claim 5 wherein the epihalohydrin is epichlorohydrin and alkyl is C 12 -C 16 .
Claim 9
Dependent Claim
11 words
The method of claim 5 wherein the triethylene diamine is cocodiamine.
Claim 10
Dependent Claim
10 words
The method of claim 5 wherein the trialkylamine is trimethylamine.
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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |