Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3945—Organic per-compounds
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
  • B65B55/02—Sterilising, e.g. of complete packages
  • B65B55/04—Sterilising wrappers or receptacles prior to, or during, packaging
  • B65B55/10—Sterilising wrappers or receptacles prior to, or during, packaging by liquids or gases
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
  • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
  • C11D3/3773—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines in liquid compositions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
  • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/378—(Co)polymerised monomers containing sulfur, e.g. sulfonate
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
  • C11D3/3796—Amphoteric polymers or zwitterionic polymers
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
  • C11D3/3905—Bleach activators or bleach catalysts
  • C11D3/3907—Organic compounds
  • C11D3/391—Oxygen-containing compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
  • C11D3/3905—Bleach activators or bleach catalysts
  • C11D3/3907—Organic compounds
  • C11D3/3917—Nitrogen-containing compounds
  • C11D3/3927—Quarternary ammonium compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions

Definitions

• the invention relates to a disinfectant containing peracetic acid, a kit for producing such a disinfectant, the use of such a disinfectant for disinfecting surfaces, preferably plastic surfaces, and a method for disinfecting plastic containers using the disinfectant.
• Drinks are often bottled in plastic bottles.
• microbiologically sensitive drinks such as fruit juices, which are CO2-free or poor, require a so-called cold aseptic filling to ensure a long shelf life, possibly even without cooling.
• product e.g., fruit juice
• container e.g., container
• caps e.g., caps
• a common form of sterilization is the so-called wet sterilization using peracetic acid.
• the inner and outer surfaces of the bottles are sprayed with an aqueous solution of peracetic acid, optionally with steam as the carrier medium.
• WO 2011/005270 A1 discloses a disinfecting composition containing peracetic acid, a surfactant (phosphate ester) and a water-soluble polymer.
• WO 2006/076334 A1 discloses as microbiocidal agent a composition of surfactants, peroxides, and polymers containing PVP or PVA.
• DE 10 2010 038 340 A1 discloses cleaners containing surfactants, peroxy compounds and polymers.
• the present invention is based on the object to provide a disinfectant of the type mentioned, which has good wetting properties and is unproblematic usable in the food industry.
• the invention is based on the surprising finding that a peracetic acid-containing disinfectant comprising as wetting agent at least one polymer having cationic dissociable groups or a combination of cationic and anionic dissociable groups, on the one hand causes good wetting of hydrophobic plastic surfaces with the disinfectant of the invention and on the other hand does not contain any ingredients that are questionable in terms of food law or that may require declaration.
• the polymers defined above as wetting agents cause complete wetting even very hydrophobic surfaces, for example of PET bottles and thus a complete disinfection by the action of peracetic acid on the entire surface.
• the disinfectant according to the invention can be rinsed without any problems and is largely residue-free and contains no ingredients which, as minimum residues possibly remaining in the bottle, are food-grade questionable.
• the term disinfectant refers to the actual application solution which is brought into contact with the surfaces to be disinfected.
• a disinfectant is prepared in situ from at least two components, of which the first component contains peracetic acid and the second component contains a corresponding polymer.
• the preparation of the disinfectant shortly before use can be done by mixing and usually diluting the components with water prior to spraying on the surfaces, where appropriate, the mixing can be done on the surfaces themselves by separate spraying of the two components.
• a kit of at least two components described for the production of a disinfectant according to the invention is thus likewise an object of the invention.
• Surfactants are used as wetting agents in the prior art.
• the disinfectant according to the invention surprisingly also causes good wetting without any surfactants.
• the disinfectants according to the invention are surfactant-free.
• Surfactants are compounds which lower the interfacial tension, ie amphiphilic compounds having at least one hydrophobic and one hydrophilic moiety.
• the term surfactants denotes the group consisting of anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants and block copolymers (especially from ethylene oxide and propylene oxide units).
• surfactants denotes the group consisting of anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants and block copolymers (especially from ethylene oxide and propylene oxide units).
• the disinfectant according to the invention contains as wetting agent at least one polymer which has cationic dissociable groups or a combination of cationic and anionic dissociable groups.
• polymers are called macromolecular compounds constructed from low molecular weight monomer units. For example, reference is made Römpp Chemielexikon, 10th edition, Georg Thieme Verlag, keyword “polymers ".
• Ionically dissociable groups dissociate in sufficiently polar solvents (eg, water) to ions and counterions. Accordingly, the at least one polymer in the ready-to-use diluted disinfectant in aqueous solution is at least partially in ionic form. In the context of the invention it is sufficient if the at least one polymer has cationic dissociable groups. Preferably, however, the at least one polymer is an ampholytic polymer, i. it has both cationic and anionic dissociable groups.
• the at least one polymer may comprise at least one monomer unit having at least one cationic dissociable group and / or at least one monomer unit having at least one anionic dissociable group.
• the at least one polymer may contain at least one monomer unit having at least one carboxyl function.
• the at least one polymer has an average molecular weight greater than 10,000, preferably greater than 50,000, more preferably greater than 100,000, and / or less than 1,000,000, preferably less than 500,000.
• the at least one polymer is an acrylate or methacrylate based copolymer. It is preferred that the copolymer comprises as monomer units and / or N-isopropylacrylamide and / or 2-acrylamido-2-methyl-1-propanesulfonic acid.
• Cationic and ampholytic polymers are known in the art.
• EP 1 767 554 A1 discloses an acrylate or methacrylate based ampholytic polymer comprising as monomer units N-isopropylacrylamide and optionally 2-acrylamido-2-methyl-1-propanesulfonic acid.
• Corresponding polymers are commercially available.
• the disinfectant of the invention may contain more than one polymer having cationic dissociable groups or a combination of cationic and anionic dissociable groups.
• the disinfectant may contain two polymers with cationic dissociable groups or a combination of cationic and anionic dissociable groups.
• the disinfectant additionally contains at least one polycarboxylate, preferably a polyacrylate, particularly preferably a copolymer of acrylic acid with 2,5-furandione.
• the list of possible ingredients is not exhaustive.
• the disinfectant is usually water, preferably fully desalted water, as a solvent.
• the disinfectant at a temperature of 20 ° C, a surface tension> 50 mN / m, preferably> 60 mN / m (measured by the DeNoüy ring-tearing method).
• the disinfectant according to the invention preferably contains peracetic acid in a concentration of 1,000 to 5,000 ppm, more preferably 1,500 to 3,500 ppm. These concentration ranges are preferred for effective surface disinfection.
• the content of the wetting agent is preferably 0.02-0.5 wt%, more preferably 0.05-0.3 wt%.
• the disinfectant according to the invention may contain further ingredients.
• it may contain at least one acid for adjusting the pH and / or as a complexing agent.
• the at least one acid may be an organic acid, preferably an ⁇ -hydroxy carboxylic acid such as citric acid, tartaric acid, malic acid, lactic acid, etc.
• Citric acid is particularly preferred.
• the acid can also be used as an indicator to check the complete rinsing of the disinfectant according to the invention.
• citric acid for example, its remaining residual content can be determined enzymatically in a known manner.
• the disinfectant according to the invention is preferably prepared immediately before use, preferably from a kit which is a further subject of the invention.
• the kit according to the invention is used for producing a disinfectant according to the invention and contains at least two components.
• a first component comprises peracetic acid and a second component contains a polymer, which has cationic dissociable groups or a combination of cationic and anionic dissociable groups.
• the optional further ingredients described above in the context of the disinfectant are preferably included in the second component (wetting agent).
• the second component preferably has a proportion of polymers with cationic dissociable groups or a combination of cationic and anionic dissociable groups of at least 0.001% by weight, preferably at least 0.01% by weight, more preferably at least 0 , 1 wt .-%, more preferably at least 1 wt .-%, more preferably at least 2 wt .-%, particularly preferably at least 3 wt .-%, and / or at most 40 wt .-%, preferably at most 30 wt. %, more preferably at most 20 wt .-%, more preferably at most 10 wt .-%, particularly preferably at most 5 wt .-% to.
• this second component contains at least one of the above-described acids, such as, for example, citric acid, preferably 0.5 to 30% by weight of acid. Particularly preferred are 5 to 20 wt .-% acid.
• the invention further relates to the use of a disinfectant or kit according to the invention for the disinfection of surfaces, preferably plastic surfaces. Even without the addition of surfactants, complete wetting of hydrophobic plastic surfaces and correspondingly complete surface disinfection takes place.
• Another object of the invention is a method for disinfecting plastic containers, in particular plastic bottles.
• Preferred plastics are PET, PE and polycarbonates.
• the surfaces of the bottles to be disinfected are brought into contact with a disinfectant according to the invention. This can be done by spraying, optionally spraying using an auxiliary medium such as steam.
• a disinfectant according to the invention it is likewise possible to spray the components of a kit according to the invention separately (optionally diluted with water) so that the disinfectant according to the invention is formed in situ on the surfaces to be disinfected. Alternatively, and usually preferred, a prior mixing of the components takes place.
• the method according to the invention can preferably be used in connection with the cold-sterile filling of beverages, in particular CO2-free or low-energy beverages such as, for example, fruit juices.
• beverages in particular CO2-free or low-energy beverages such as, for example, fruit juices.
• the process can be used at temperatures of 30-60 ° C, more preferably 35-45 ° C.
• the disinfectant according to the invention is preferably produced from a 2-component system or kit.
• Peracetic acid is contained in the first component and the wetting agent according to the invention in the second component.
• Peracetic acid component (PES component): Commercially available aqueous peracetic acid solutions can be used here. In the exemplary embodiments, this is commercially available from Fa. Weigert available concentrate neoseptal® PE 15 used, which contains acetic acid and hydrogen peroxide in aqueous solution, so that an equilibrium with an effective concentration of peracetic acid of about 15 wt .-% sets.
• Example 1.1 Amount used (in%) CAS-No. 1-propanaminium, N, N, N-trimethyl-3 - [(2-methyl-1-oxo-2-propenyl) amino] -, chloride, polymer with ethyl 2-propenoate and sodium 2-propenoate 2.6 192003-74-0 2-propenoic acid, polymer with 2,5-furandione, sodium salt 0.4 52255-49-9 citric acid 10 5949-29-1 water ad.
• Example 1.2 1-propanaminium, N, N, N-trimethyl-3 - ((2-methyl-1-oxo-2-propen-1-yl) amino) -, chloride, polymer with N- (1-methylethyl) -2- propenamides, 2-methyl-2 - ((1-oxo-2-propen-1-yl) amino) -1-propanesulfonic acid and 2-propenoic acid, sodium salt 5.2 880345-00-6 Aziridines, polymer with 2- (chloromethyl) oxiranes and oxiranes, N- (2-carboxyethyl) derivs. 0.4 845752-17-2 citric acid 10 5949-29-1 water ad.
• Example 1.3 1-propanaminium, N, N, N-trimethyl-3 - [(2-methyl-1-oxo-2-propenyl) amino] -, chloride, polymer with ethyl 2-propenoate and sodium 2-propenoate 5.5 192003-74-0 citric acid 10 5949-29-1 water ad. 100
• wetting agent component of the prior art doscan® CAF from the company Dr. med. Weigert used. It is a surfactant-containing wetting agent that contains small amounts of QAV (quaternary ammonium compounds).
• QAV quaternary ammonium compounds
• the essential ingredients are fatty alcohol polyglycol ethers and dioctylmethylammonium chloride. Hereinafter, it will be referred to as NMK V.
• Example 3.1 The inner walls of a 1 l PET bottle are wetted with the solutions, the solutions are allowed to drain.
• the wetting pattern of Example 3.1 and Comparative Example 3.2 shows a frothy full-coverage film that barely ruptures.
• Comparative Example 3.3 show individual adherent drops without film formation, ie a poor wetting of the surface.
• a disinfectant according to the invention can be rinsed out significantly better than the comparative example which contains surfactants.
• a surface tension has already been reached, for which four-fold rinsing is required in the comparative example with surfactants.
• the solution without wetting agent which is likewise used for comparison, no lowering of the surface tension takes place from the outset.
• Example 2 the solutions of Example 2 are tested for their disinfecting effect.
• the inner surfaces of a 1 l PET bottle are fogged with 10 ⁇ l of a germ suspension (containing a calculated germ number of 106) of the reference germ B. atrophaeus.
• a conventional disinfection in a cold aseptic filling plant and a subsequent determination of the germ count reduction.
• the wetting agent used according to the invention leads to just as good complete wetting of the surfaces as the prior art, without the need for surfactants.

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• 2013
  • 2013-12-20 ES ES13198984T patent/ES2719696T3/es active Active
  • 2013-12-20 EP EP13198984.0A patent/EP2886635B1/de active Active
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