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GB2189146A - Virucidal composition comprising glutaraldehyde and a quaternary ammonium salt - Google Patents
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GB2189146A - Virucidal composition comprising glutaraldehyde and a quaternary ammonium salt - Google Patents

Virucidal composition comprising glutaraldehyde and a quaternary ammonium salt Download PDF

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Publication number
GB2189146A
GB2189146A GB08709209A GB8709209A GB2189146A GB 2189146 A GB2189146 A GB 2189146A GB 08709209 A GB08709209 A GB 08709209A GB 8709209 A GB8709209 A GB 8709209A GB 2189146 A GB2189146 A GB 2189146A
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GB
United Kingdom
Prior art keywords
glutaraldehyde
composition
arquad
virucidal
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08709209A
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GB8709209D0 (en
GB2189146B (en
Inventor
Timothy Paul Masters
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VETHEALTH Ltd
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VETHEALTH Ltd
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Publication date
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Application filed by VETHEALTH Ltd filed Critical VETHEALTH Ltd
Publication of GB8709209D0 publication Critical patent/GB8709209D0/en
Publication of GB2189146A publication Critical patent/GB2189146A/en
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Publication of GB2189146B publication Critical patent/GB2189146B/en
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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N35/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
    • A01N35/02Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

A virucidal composition for use in preventing the spread of a range of viral infections includes glutaraldehyde and dimethylcocobenzylammonmium chloride. The composition can be used as an aqueous solution without the addition of a buffering agent and is normally supplied to the intended user in the form of a concentrate for dilution at the appropriate rate.

Description

SPECIFICATION Virucidal composition Field of the Invention This invention relates to virucidal compositions and to methods of disinfecting using such compositions.
The invention is more specifically concerned with a virucidal composition which includes glutaraldehyde.
Description of the Prior Art The use of sporicidal compositions containing glutaraldehyde and a cationic surfactant is disclosed in British Patent Specification number 1052537. In use, it has been discovered that these compositions have a virucidal as well as sporicidal activity.
A disadvantage of the particular compositions disclosed in Patent Specification number 1052537 is that aqueous solutions of the glutaraldehyde and surfactant need to be mixed with a buffering agent to enhance the activity of the composition.
Enveloped viruses which are surrounded by an inert sheath have been found to be treatable by such solutions. However, unenveloped viruses which have no inert sheath are much more difficult to treat. One such virus is the parvovirus, which has at least four strains, i.e. canine, feline, bovine and porcine parvoviruses.
It is an object of the invention to provide a virucidal composition which is effective against unenveloped viruses and which can be used without the addition of a buffering agent.
Summary of the Invention According to one aspect of the present invention there is provided a virucidal composition comprising glutaraldehyde and dimethylcocobenzylammonium chloride.
According to another aspect of the invention there is provided a method of disinfecting an object which comprises subjecting the object to treatment with a virucidal composition comprising glutaraldehyde and dimethylcocobenzylammonium chloride.
The virucidal composition may be used as an aqueous solution which does not contain a buffering agent.
Description of the Preferred Embodiments In one example of the invention a virucidal composition is prepared by introducing 200 litres of water into a mixing vessel equipped with a stirrer and adding thereto 30 grams of solubilised brown dye (18409). With continuous stirring 150 kg of glutaraldehyde solution are added followed by 100 kg. of cationic surfactant Arquad B50. 10 kg. of an aromatic perfume are then added and, when the mixture has been made up to 500 litres by the addition of further water, the mixture is then stirred for a further twenty minutes before batches of the composition are run off into suitable containers.
The above composition is an aqueous solution of the glutaraldehyde and surfactant and is hereinafter referred to as Composition A.
The Arquad B50 included in Composition A comprises an aqueous 50% by weight solution of quaternary ammonium salt the principal component of which is dimethylcocobenzylammonium chloride. The glutaraldehyde solution of Composition A is itself a 50% by weight solution of glutaraldehyde in water. Thus, Composition A comprises 15% by weight glutaraldehyde and 10% by weight cationic surfactant.
Tests have been carried out to establish the virucidal activity of Composition A in accordance with the standard test procedures of the Ministry of Agriculture, Fisheries and Food. These tests have shown the effectiveness of Composition A against the following viruses at the dilutions quoted, which give a 4 log10 reduction in virus titre: Virus Dilution of Composition A Parainfluenza 3 virus 1:750 Aujeszky's Disease Virus 1:1400 Paraviccima virus 1:1000 Transmissible gastroentiritis virus 1:900 Chlamydia psittaci 1:1000 Canine parvovirus 1:50 For use, therefore, as a spray in veterinary surgeries or as a disinfectant/detergent in premises where parvoviruses may be encountered, Composition A is used as a dilution in water of approximately 1:50 whereas, for general purposes, it can be used at a dilution of 1:500.At a dilution of 1:50, the concentration of glutaraldehyde is 0.3% by weight, the preferred concentra tion range being 0.2% to 1% by weight. At the same dilution the concentration of dimethylcocobenzylammonium chloride is 0.2%, the preferred concentration range being 0.1% to 0.6% by weight.
Similarly, at a dilution of 1:500, the concentration of glutaraldehyde is 0.03% and the concentration of dimethylcocobenzylammonium chloride is 0.02% The preferred aromatic perfume for inclusion in the composition is that sold under the trade mark SOL-ODO-MASK H by Kilgern Chemicals Limited, of West Yorkshire.
Arquad B50 is produced by Akzo Chemie of Holland and chemical analysis of Arquad B50 shows that it comprises a number of structurally similar quaternary ammonium compounds and that the percentages by weight of the different carbon chain length compounds are as follows: C10 C12 C14 C16 C18 C20 3 54 22 10 10 The term dimethylcocobenzylammonium chloride as used herein is thus to be interpreted as including a product one of the principai components of which has a 12 carbon chain.
Other cationic surfactants produced by Akzo Chemie include Arquad S50 (oleyltrimethylammonium chloride) and Arquad T50 (tallow trimethylammonium chloride).
The percentages by weight of the different carbon chain length constituents of Arquad S50 and Arquad T50 are as follows: C10 C12 C14 C16 C18 C20 S50 - 1 4 12 82 1 T50 - 1 4 31 64 1 Tests have been carried out to compare the effectiveness of Composition A with that of Compositions in which the Arquad B50 is replaced by Arquad S50 or Arquad T50. In these tests, a 5% aqueous solution of milk is exposed to disinfectant for varying lengths of time and the culture so obtained is plated on to a blood/agar plate which is then incubated at 37"C for 72 hours prior to examination.
The results which were obtained using 1% aqueous solutions of the disinfectants demonstrate the increased effectiveness of Composition A containing Arquad B50 and were as follows: 5 minutes 10 minutes 20 minutes 30 minutes Arquad B50 No growth No growth No growth No growth Arquad S50 Light Light Moderate Light haemolysis haemolysis haemolysis haemolysis Arquad T50 Light Moderate Severe Moderate haemolysis haemolysis haemolysis haemolysis haemolysis On repetition of the 10 minutes exposure time tests to ascertain colony formation, no colonies were formed with Arquad B50, between 4 and 10 colonies were formed with Arquad S50, and between 11 and 50 colonies were formed with Arquad T50.
The 10 minute exposure tests were then repeated with two further surfactants produced by Akzo Chemie. These were Arquad 2-C75, which is dicocodimethylammonium chloride, and Ethoquad C-25, which is polyoxyethylenecocomethylammonium chloride. The percentages by weight of the different carbon chain length constitutents of Arquad 2-C75 and Ethoquad C-25 are: C8 ClO C72 C14 C16 C18 2-C75 3 5 50 19 10 10 C-25 3 5 50 19 10 10 With Arquad B50 no colony growth occurred whereas with Arquad 2-C75 there was significant colony growth at two sites and with Ethoquad C-25 there was rapid colonial growth at one site.
These test results clearly demonstrate the surprising increased effectiveness of dimethylcocobenzylammonium chloride as compared to other surfactants of similar structural formulae.
Composition A contains an aqueous solution of glutaraldehyde and surfactant. As an alternative -thereto, the glutaraldehyde, surfactant, dye and perfume may be mixed together directly without the addition of water to form a concentrate. This concentrate is storage-stable and can be produced particularly for export purposes.
Composition A, or the concentrate when dissolved in an equal weight of water, has a pH in the region of 7.5. The glutaraldehyde and surfactant interact synergistically at this pH to obtain a virucidal activity which is significantly greater than either glutaraldehyde or the surfactant sepa rately.

Claims (7)

1. A virucidal composition comprising glutaraldehyde and dimethylcocobenzylammonium chloride.
2. A virucidal composition according to Claim 1, wherein the glutaraldehyde comprises a 50% by weight aqueous solution.
3. A virucidal composition according to claim 1, in the form of an aqueous solution containing 15% by weight glutaraldehyde and 10% by weight dimethylcocobenzylammonium chloride.
4. A virucidal composition according to claim 1, in the form of an aqueous solution containing 0.2 to 1% by weight glutaraldehyde and 0.1 to 0.6% by weight dimethylcocobenzylammonium chloride.
5. A virucidal composition for use in combatting parvovirus infections comprising an aqueous solution of Composition A as hereinbefore described.
6. A method of disinfecting an object which comprises subjecting the object to treatment with a virucidal composition comprising glutaraldehyde and dimethylcocobenzylammonium chloride.
7. A method according to Claim 6, wherein the virucidal composition comprises an aqueous solution of Composition A as hereinbefore described.
GB8709209A 1986-04-16 1987-04-16 Virucidal composition comprising glutaraldehyde and a quaternary ammonium salt Expired GB2189146B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868609329A GB8609329D0 (en) 1986-04-16 1986-04-16 Virucidal sporicidal composition

Publications (3)

Publication Number Publication Date
GB8709209D0 GB8709209D0 (en) 1987-05-20
GB2189146A true GB2189146A (en) 1987-10-21
GB2189146B GB2189146B (en) 1989-04-05

Family

ID=10596323

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868609329A Pending GB8609329D0 (en) 1986-04-16 1986-04-16 Virucidal sporicidal composition
GB8709209A Expired GB2189146B (en) 1986-04-16 1987-04-16 Virucidal composition comprising glutaraldehyde and a quaternary ammonium salt

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868609329A Pending GB8609329D0 (en) 1986-04-16 1986-04-16 Virucidal sporicidal composition

Country Status (6)

Country Link
EP (1) EP0275262A1 (en)
JP (1) JPS63502990A (en)
AU (1) AU589005B2 (en)
FI (1) FI875510L (en)
GB (2) GB8609329D0 (en)
WO (1) WO1987006099A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0692192A1 (en) * 1994-07-11 1996-01-17 MFH Marienfelde GmbH Unternehmen für Hygiene Alcoholic disinfecting agent preparation and use thereof
US8609381B2 (en) 2007-06-28 2013-12-17 Dow Brasil Sudeste Industrial Ltda. Methods to control bacterial growth in fermentation processes

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636541A1 (en) * 1986-10-27 1988-04-28 Henkel Kgaa DISINFECTANT WITH PARASITE KILLING EFFECT
US5674829A (en) * 1993-01-29 1997-10-07 Antoinetta P. Martin Stable aqueous glutaraldehyde solutions containing sodium acetate and a nonionic detergent
DE102006009508A1 (en) * 2006-02-27 2007-08-30 Gerhard Ruff Gmbh Disinfectant containing glutaric dialdehyde and quaternary ammonium compounds

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1499789A (en) * 1975-06-16 1978-02-01 Henkel & Cie Gmbh Disinfectants
GB2074866A (en) * 1980-04-25 1981-11-11 Anios Lab Sarl Bactericidal Compositions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052537A (en) * 1963-05-10
DE3439519A1 (en) * 1984-10-29 1986-04-30 Henkel KGaA, 4000 Düsseldorf METHOD FOR IMPROVING THE CORROSION BEHAVIOR OF DISINFECTANT SOLUTIONS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1499789A (en) * 1975-06-16 1978-02-01 Henkel & Cie Gmbh Disinfectants
GB2074866A (en) * 1980-04-25 1981-11-11 Anios Lab Sarl Bactericidal Compositions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0692192A1 (en) * 1994-07-11 1996-01-17 MFH Marienfelde GmbH Unternehmen für Hygiene Alcoholic disinfecting agent preparation and use thereof
US8609381B2 (en) 2007-06-28 2013-12-17 Dow Brasil Sudeste Industrial Ltda. Methods to control bacterial growth in fermentation processes

Also Published As

Publication number Publication date
GB8709209D0 (en) 1987-05-20
GB2189146B (en) 1989-04-05
EP0275262A1 (en) 1988-07-27
FI875510A7 (en) 1987-12-15
WO1987006099A1 (en) 1987-10-22
FI875510A0 (en) 1987-12-15
AU7287887A (en) 1987-11-09
JPS63502990A (en) 1988-11-02
FI875510L (en) 1987-12-15
GB8609329D0 (en) 1986-05-21
AU589005B2 (en) 1989-09-28

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Legal Events

Date Code Title Description
737B Application made to the patents court (sect. 37(1)/1977)
737A Proceeding under section 37(1) patents act 1977
PCNP Patent ceased through non-payment of renewal fee
728C Application made for restoration (sect. 28/1977)
728A Order made restoring the patent (sect. 28/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
772 Application made for revocation (sect. 72/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
772C Application made to the comptroller for revocation (sect. 72/1977)
772S Application withdrawn ** no order for revocation made (sect. 72/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960416