Patent US3923973A successfully refreshed from Google Patents.
US3923973A
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US
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Fungicidal polymeric quaternary ammonium compounds
Assignee: MILLMASTER ONYX GROUP LP
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Filing: 1974-09-30
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Granted: 1975-12-02
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Expires: 1994-09-30
Abstract
Abstract The use of polymeric quaternary ammonium compounds prepared by the condensation of 1,4-dihalo-2-butene and 1,4-bis(dimethylamino)-2-butene as microbiocidal agents in aqueous systems.
Inventors
- 👤 Harold A Green
- 👤 John J Merianos
- 👤 Alfonso N Petrocci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:40
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/005; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/18; A61K8/30; A61K8/40; A61K8/72; A61K8/84; C; C02; C02F; C02F1/00; C02F1/50; C08; C08G; C08G73/00; C08G73/02; C08G73/0206; C08G73/0213; C08G73/0226
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
88 words
A METHOD OF CONTROLLING THE PROLIFERATION OF FUNGI IN AN AQUEOUS SYSTEM, WHICH COMPRISES APPLYING TO SAID FUNGI A FUNGICIDALLY EFFECTIVE AMOUNT OF A CONDENSATION PRODUCT FORMED BY MIXING 1,4-BIS-DIMETHYLAMINO-2-BUTENE DISSOLVED IN A SOLVENT WITH 1,4-DILHALO-2-BUTENE AT ROOM TEMPERATURE WHEREBY AN EXOTHERMIC REACTION IS OBTAINED CAUSING THE TEMPERATURE OF THE MIXTURE TO RISE, THEN MAINTAINING THE MIXTURE AT NO HIGHER THAN REFLUX TEMPERATURE UNTIL THE REACTION IS COMPLETE, WHEREIN THESE REACTANTS ARE PRESENT IN A MOLAR PROPORTION OF BETWEEN ABOUT 1:3 AND ABOUT 3:1 RELATIVE TO EACH OTHER.
Claim 2
Independent Claim
88 words
A METHOD OF CONTROLLING THE PROLIFERATION OF FUNGI IN AN AQUEOUS SYSTEM, WHICH COMPRISES APPLYING TO SAID FUNGI A FUNGICIDALLY EFFECTIVE AMOUNT OF A CONDENSATION PRODUCT FORMED BY MIXING 1,4-BIS-DIMETHYLAMINO-2-BUTENE DISSOLVED IN A SOLVENT WITH 1,4-DILHALO-2-BUTENE AT ROOM TEMPERATURE WHEREBY AN EXOTHERMIC REACTION IS OBTAINED CAUSING THE TEMPERATURE OF THE MIXTURE TO RISE, THEN MAINTAINING THE MIXTURE AT NO HIGHER THAN REFLUX TEMPERATURE UNTIL THE REACTION IS COMPLETE, WHEREIN THESE REACTANTS ARE PRESENT IN A MOLAR PROPORTION OF BETWEEN ABOUT 1:3 AND ABOUT 3:1 RELATIVE TO EACH OTHER.
Claim 3
Dependent Claim
10 words
The method of claim 1 wherein the dihalo is dichloro.
Claim 4
Dependent Claim
10 words
The method of claim 1 wherein the dihalo is dibromo.
Claim 5
Dependent Claim
12 words
The method of claim 1 wherein the aqueous system is recirculated water.
Claim 6
Dependent Claim
16 words
The method of claim 1 wherein the aqueous system is an aqueous emulsion containing non-ionic emulsifiers.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |