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US3881008A Expired / Lapsed US ⏱️ 0.0 years remaining

N-2-nitrobutyl morpholine mixed with n-alkyl-dimethyl-benzyl ammonium chloride as slime control composition

Assignee: Veolia WTS USA Inc
•
Filing: 1973-05-30
•
Granted: 1975-04-29
•
Expires: 1993-05-30
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Abstract

Abstract The present invention relates to certain processes and compositions useful for inhibiting the growth of slime in water and, in particular, water used for industrial purposes; for example, in the manufacture of pulp paper, in the manufacture of paper, in cooling water systems and in effluent water treatment. The novel processes and compositions of the present invention are processes or mixtures which show unexpected synergistic activity against microorganisms, including bacteria, fungi and algae, which produce slime in aqueous systems of bodies which are objectionable from either an operational or aesthetic point of view. Specifically, the invention is directed to the use of compositions comprising a combination of N-2-nitrobutylmorpholine and N-alkyl-dimethyl-benzyl ammonium chloride, containing from 10 to 14 carbons.

Inventors

  • 👤 Bernard F Shema
  • 👤 Jr Robert H Brink
  • 👤 Paul Swered

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 03:21
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50; A; A01; A01N; A01N33/00; A01N33/16; A01N33/18

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 42 words
A COMPOSITION FOR THE CONTROL OF AEROBACTER AEROGENES IN AQUEOUS SYSTEMS COMPRISING N-2-NITROBUTYL MORPHOLINE AND N-ALKYL-DIMETHYL-BENZYL AMMONIUM CHLORIDE, CONTAINING FROM 10 TO 14 CARBONS, WHEREIN THE WEIGHT RATIO OF THE MORPHOLINE TO THE CHLORIDE RANGES FROM ABOUT 5:95 TO ABOUT 95:5 RESPECTIVELY.
Claim 2
Dependent Claim 42 words
A COMPOSITION FOR THE CONTROL OF AEROBACTER AEROGENES IN AQUEOUS SYSTEMS COMPRISING N-2-NITROBUTYL MORPHOLINE AND N-ALKYL-DIMETHYL-BENZYL AMMONIUM CHLORIDE, CONTAINING FROM 10 TO 14 CARBONS, WHEREIN THE WEIGHT RATIO OF THE MORPHOLINE TO THE CHLORIDE RANGES FROM ABOUT 5:95 TO ABOUT 95:5 RESPECTIVELY.
Claim 3
Dependent Claim 11 words
The composition of claim 1 where said ratio is about 50:50.
Claim 4
Independent Claim 56 words
A method for controlling the growth of Aerobacter aerogenes in an aqueous system which comprises adding to said system an effective amount of a composition comprised of N-2-nitrobutyl-morpholine and N-alkyl-dimethyl-benzyl ammonium chloride, containing from 10 to 14 carbons, wherein the weight ratio of the morpholine to the chloride ranges from about 5:95 to about 95:5 respectively.
Claim 5
Independent Claim 56 words
A method for controlling the growth of Aerobacter aerogenes in an aqueous system which comprises adding to said system an effective amount of a composition comprised of N-2-nitrobutyl-morpholine and N-alkyl-dimethyl-benzyl ammonium chloride, containing from 10 to 14 carbons, wherein the weight ratio of the morpholine to the chloride ranges from about 5:95 to about 95:5 respectively.
Claim 6
Dependent Claim 11 words
The method of claim 3 where said ratio is about 50:50.
Claim 7
Dependent Claim 39 words
The method of claim 3 wherein said composition is added to said system in an amount of from about 0.1 to about 1000 parts per by weight of said composition per million parts by weight of said aqueous system.
Claim 8
Dependent Claim 23 words
The method of claim 5 where said composition amount is from about 1 to about 100 parts per million of said aqueous system.
Claim 9
Dependent Claim 16 words
The method of claim 5 wherein the aqueoue system is that of a cooling water system.
Claim 10
Dependent Claim 18 words
The method of claim 5 wherein the aqueous system is that of a pulp and paper mill system.

References Cited (Backward Citations)

US2692231A Cited
US3054749A Cited
US3664821A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-04-28 1978-10-28 1979-04-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-04-28 1982-10-28 1983-04-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-04-28 1986-10-28 1987-04-29 $7700.00 Window Closed / Lapsed

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