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US4444790A Expired / Lapsed US ⏱️ 0.0 years remaining

Quaternary ammonium disinfectants

Assignee: Stepan Co
•
Filing: 1982-08-25
•
Granted: 1984-04-24
•
Expires: 2002-08-25
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Abstract

Abstract Decyl dimethylquaternary ammonium salts utilizable as disinfectants in the presence of hard water or organic soil, the term "decyl" referring to a mixture of branched primary branched chain alkyl groups having 10 carbon atoms.

Inventors

  • 👤 Harold A. Green
  • 👤 Alfonso N. Petrocci
  • 👤 Zdzislaw W. Dudzinski

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 14:43
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48; A; A01; A01N; A01N33/00; A01N33/02; A01N33/12; A61; A61P; A61P31/00; A61P31/04; C02; C02F; C02F1/00; C02F1/50

Claims Analysis

Total Claims: 27
Claim 1
Independent Claim 80 words
A quaternary ammonium compound having the structural formula: ##STR1## wherein R is a lower alkyl group of from 1 to 4 carbon atoms and X is either a halogen having an atomic weight greater than 30, methosulfate or ethosulfate, the term "decyl" referring to a mixture of primary branched chain alkyl groups each of which has 10 carbon atoms and consists of a straight chain having at least two branches and the term "n-decyl" referring to the normal decyl group.
Claim 2
Dependent Claim 80 words
A quaternary ammonium compound having the structural formula: ##STR1## wherein R is a lower alkyl group of from 1 to 4 carbon atoms and X is either a halogen having an atomic weight greater than 30, methosulfate or ethosulfate, the term "decyl" referring to a mixture of primary branched chain alkyl groups each of which has 10 carbon atoms and consists of a straight chain having at least two branches and the term "n-decyl" referring to the normal decyl group.
Claim 3
Dependent Claim 9 words
The compound of claim 1 wherein X is chlorine.
Claim 4
Dependent Claim 11 words
The compound of claim 1 wherein R is CH 3 .
Claim 5
Dependent Claim 15 words
The compound of claim 1 wherein X is chlorine and R is CH 3 .
Claim 6
Dependent Claim 105 words
A disinfectant composition comprising an aqueous solution of a quaternary ammonium compound having the structural formula: ##STR2## wherein R is a lower alkyl group of from 1 to 4 carbon atoms and X is either a halogen having an atomic weight greater than 30, methosulfate or ethosulfate, the term "decyl" referring to a mixture of primary branched chain alkyl groups each of which has 10 carbon atoms and consists of a straight chain having at least two branches and the term "n-decyl" referring to the normal decyl group, said quaternary ammonium compound being present in said solution in an amount of at least 500 ppm.
Claim 7
Dependent Claim 105 words
A disinfectant composition comprising an aqueous solution of a quaternary ammonium compound having the structural formula: ##STR2## wherein R is a lower alkyl group of from 1 to 4 carbon atoms and X is either a halogen having an atomic weight greater than 30, methosulfate or ethosulfate, the term "decyl" referring to a mixture of primary branched chain alkyl groups each of which has 10 carbon atoms and consists of a straight chain having at least two branches and the term "n-decyl" referring to the normal decyl group, said quaternary ammonium compound being present in said solution in an amount of at least 500 ppm.
Claim 8
Dependent Claim 9 words
The composition of claim 5 wherein X is chlorine.
Claim 9
Dependent Claim 11 words
The composition of claim 5 wherein R is CH 3 .
Claim 10
Dependent Claim 15 words
The composition of claim 5 wherein X is chlorine and R is CH 3 .
Claim 11
Dependent Claim 25 words
The composition of claim 5 wherein said solution contains at least about 400 ppm of hardness as measured in terms of ppm of calcium carbonate.
Claim 12
Independent Claim 95 words
A method of disinfection which comprises applying to undesired bacteria a disinfectingly effective amount of a quaternary ammonium compound having the structural formula: ##STR3## wherein R is a lower alkyl group of from 1 to 4 carbon atoms and X is either a halogen having an atomic weight greater than 30, methosulfate or ethosulfate, the term "decyl" referring to a mixture of primary branched chain alkyl groups each of which has 10 carbon atoms and consists of a straight chain having at least two branches and the term "n-decyl" referring to the normal decyl group.
Claim 13
Independent Claim 95 words
A method of disinfection which comprises applying to undesired bacteria a disinfectingly effective amount of a quaternary ammonium compound having the structural formula: ##STR3## wherein R is a lower alkyl group of from 1 to 4 carbon atoms and X is either a halogen having an atomic weight greater than 30, methosulfate or ethosulfate, the term "decyl" referring to a mixture of primary branched chain alkyl groups each of which has 10 carbon atoms and consists of a straight chain having at least two branches and the term "n-decyl" referring to the normal decyl group.
Claim 14
Dependent Claim 9 words
The method of claim 10 wherein X is chlorine.
Claim 15
Dependent Claim 11 words
The method of claim 10 wherein R is CH 3 .
Claim 16
Dependent Claim 15 words
The method of claim 10 wherein X is chlorine and R is CH 3 .
Claim 17
Dependent Claim 24 words
The method of claim 10 wherein said quaternary ammonium compound is in an aqueous solution in an amount of at least about 500 ppm.
Claim 18
Dependent Claim 25 words
The method of claim 10 wherein said solution contains at least about 400 ppm of hardness as measured in terms of ppm of calcium carbonate.
Claim 19
Dependent Claim 18 words
The method of claim 10 wherein said quaternary ammonium compound is applied to bacteria on a hard surface.
Claim 20
Dependent Claim 52 words
The method of claim 10 wherein said quaternary ammonium compound is in admixture with di-decyl dimethylammonium halide and di-n-decyl dimethylammonium halide, the term "decyl" as used in "di-decyl" referring to a mixture of primary branched chain alkyl groups having 10 carbon atoms and the term "di-n-decyl" referring to the normal decyl group.
Claim 21
Dependent Claim 22 words
The method of claim 17 wherein said quaternary ammonium compound comprises about 50% by weight of the active ingredients of the mixture.
Claim 22
Dependent Claim 107 words
A disinfectant composition comprising an aqueous solution of a quaternary ammonium compound wherein the quaternary ammonium compound is present in an amount of at least 500 ppm, said quaternary ammonium compound being selected from the group consisting of (a) decyl-n-decyl dimethylammonium halide, (b) a mixture of di-decyl dimethylammonium halide and di-n-decyl-dimethylammonium halide, and (c) a mixture of di-decyl dimethylammonium halide, di-n-decyl dimethylammonium halide and decyl-n-decyl dimethylammonium haldide, the term "decyl" referring to a mixture of branched chain alkyl groups each of which has 10 carbon atoms and consists of a straight chain having at least two branches and the term "n-decyl" referring to the normal decyl group.
Claim 23
Dependent Claim 107 words
A disinfectant composition comprising an aqueous solution of a quaternary ammonium compound wherein the quaternary ammonium compound is present in an amount of at least 500 ppm, said quaternary ammonium compound being selected from the group consisting of (a) decyl-n-decyl dimethylammonium halide, (b) a mixture of di-decyl dimethylammonium halide and di-n-decyl-dimethylammonium halide, and (c) a mixture of di-decyl dimethylammonium halide, di-n-decyl dimethylammonium halide and decyl-n-decyl dimethylammonium haldide, the term "decyl" referring to a mixture of branched chain alkyl groups each of which has 10 carbon atoms and consists of a straight chain having at least two branches and the term "n-decyl" referring to the normal decyl group.
Claim 24
Dependent Claim 22 words
The composition of claim 19 wherein the solution contains at least 400 ppm of hardness as measured in terms of calcium carbonate.
Claim 25
Dependent Claim 25 words
The composition of claim 19 wherein the mixture of di-decyl and di-n-decyl dimethylammonium halides contains at least about 10% by weight of the di-n-decyl halide.
Claim 26
Dependent Claim 35 words
The composition of claim 19 whereas the mixture of di-decyl, di-n-decyl and decyl-n-decyl dimethylammonium halides contains about 50% of the decyl-n-decyl halide, the remainder being formed of about equal amounts of the other two halides.
Claim 27
Dependent Claim 10 words
The composition of claim 19 wherein the halides are chlorides.

References Cited (Backward Citations)

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US3836669A Cited
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US3754033A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-04-24 1987-10-24 1988-04-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-04-24 1991-10-24 1992-04-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-04-24 1995-10-24 1996-04-24 $7700.00 Window Closed / Lapsed

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