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WO1999061544A1 - Procede pour l'humidification controlee de l'air ambiant - Google Patents

Procede pour l'humidification controlee de l'air ambiant Download PDF

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Publication number
WO1999061544A1
WO1999061544A1 PCT/EP1999/003428 EP9903428W WO9961544A1 WO 1999061544 A1 WO1999061544 A1 WO 1999061544A1 EP 9903428 W EP9903428 W EP 9903428W WO 9961544 A1 WO9961544 A1 WO 9961544A1
Authority
WO
WIPO (PCT)
Prior art keywords
dimensionally stable
water
room air
stable composition
humidified
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.)
Ceased
Application number
PCT/EP1999/003428
Other languages
German (de)
English (en)
Inventor
Wolfgang Klauck
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to JP2000550934A priority Critical patent/JP2002516391A/ja
Priority to DK99953348T priority patent/DK1095118T3/da
Priority to DE59904104T priority patent/DE59904104D1/de
Priority to AU42641/99A priority patent/AU746770B2/en
Priority to CA002333634A priority patent/CA2333634A1/fr
Priority to AT99953348T priority patent/ATE231540T1/de
Priority to PL99344402A priority patent/PL186669B1/pl
Priority to EP99953348A priority patent/EP1095118B1/fr
Publication of WO1999061544A1 publication Critical patent/WO1999061544A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements

Definitions

  • the invention relates to a method for the controlled humidification of room air using water-containing, dimensionally stable compositions which contain alkali metal carboxylates, water and optionally further additives.
  • Both methods of room humidification also have the disadvantage that due to constant evaporation of water there is a calcification of the water tank, which can lead to the container being unusable over a more or less long period of time or at least requires regular decalcification by the user.
  • the task was to provide a method for the controlled humidification of room air, which does not have the disadvantages mentioned above.
  • the invention therefore relates to a process for the controlled humidification of room air or a room air supply, in which a water-containing molded article is exposed to the room air or room air supply to be humidified, the water-containing molded article having a dimensionally stable composition containing 1 to 40% by weight of alkali metal carboxylates of carboxylic acids 8 to 26 carbon atoms and 60 to 99 wt .-% water is used.
  • the dimensionally stable composition used as a water-containing molded body thus has a high water content, this water being controlled and being released with respect to the rate at which water is released, which is adjustable within certain limits.
  • the dimensionally stable composition contains about 1 to 40% by weight of alkali metal carboxylates of carboxylic acids with about 8 to 26 carbon atoms.
  • fatty acids can be obtained, for example, from fatty substances such as are present in nature in particular as vegetable and animal oils and fats.
  • Such "soaps” generally also have an antimicrobial effect, which means that microbes such as fungi, bacteria or algae do not or only weakly affect the surface of the shaped body.
  • Vegetable and animal oils and fats are present in nature in the form of natural mixtures of different fatty acid glycerol esters, for example in the form of palm oil, palm kernel oil, palm stearin, olive oil, rapeseed oil, korean oil, sunflower oil, cotton oil, peanut oil, linseed oil, lard oil, fish oil, fish oil or pork lard.
  • the naturally occurring fatty substances generally do not provide identical fatty acids, but rather mixtures of fatty acids with different chain lengths, branches, functional groups or unsaturated molecule sections.
  • the dimensionally stable composition of the present invention can be based both on alkali metal salts of pure fatty acids (fatty acids with identical molecular structure) and on alkali metal salts of fatty acid cuts.
  • alkali metal salts of carboxylic acids from fatty acid cuts are used, in particular from fatty acid cuts which have a predominant proportion of fatty acids with about 12 to about 22 carbon atoms.
  • Examples of generally suitable carboxylic acids with about 8 to 26 carbon atoms, preferably about 12 to 22 carbon atoms, are: Capron, Ca ⁇ yl, Caprin, Laurin, Myristin, Palmitin, Stearin, Arachin, Behen-, Cerotinic, pentadecanoic, margaric, tridecanoic and lignoceric acids.
  • Examples of unsaturated fatty acids with about 8 to 26 carbon atoms, preferably about 12 to 22 carbon atoms are: myristolein, palmitolein, oil, elaidin, petroselin, eruca, linole, linoleic, arachidone, clupanodone , Docosahexaenic, eicosapentaenic and gadoleic acid.
  • alkali metal salts of carboxylic acids from fatty acid cuts based on coconut oil, palm kernel oil or beef tallow are used in a preferred embodiment of the present invention.
  • carboxylic acid salts of the alkali metals Li, Na, K, Rb, Cs can be used alone or as a mixture of two or more thereof in the context of the present invention.
  • carboxylic acid salts of the alkali metals Li, Na, K, in particular the Na carboxylates are preferably used.
  • compositions according to the invention preferably have the alkali metal carboxylates of the type described above in an amount of about 2 to about 10% by weight, in particular in an amount of about 3 to about 8% by weight.
  • Preferred carboxylic acids are myristic, palmitic and stearic acids, which can be used directly as corresponding salts or, for example, after neutralization with NaOH.
  • the dimensionally stable composition therefore contains about 2 to about 10% by weight of Na-C ⁇ . ⁇ - carboxylate and about 70 to about 98% by weight of water.
  • the dimensionally stable composition to be used in the process according to the invention can, in addition to the above-mentioned alkali metal carboxylates and water, also 0 to about 20% by weight of an additive selected from the group consisting of solvents, regulators, fragrances, insecticides, preservatives, thickeners or moisture indicators, or a mixture of two or more of them.
  • Suitable solvents are, for example, all water-soluble solvents, e.g. short-chain alcohols with about 2 to about 8 carbon atoms.
  • the composition is formulated largely without solvent.
  • small amounts can be introduced, for example, using additives (eg perfume oils).
  • the dimensionally stable composition to be used according to the invention can contain regulators.
  • a regulator is understood to mean a connection with which the vapor pressure of the water contained in the dimensionally stable composition can be set within certain limits.
  • Suitable regulators include, for example, non-hygroscopic salts such as NaCl or hygroscopic salts such as CaCl 2 or Na 2 SO 4 and swellable substances, for example clays, silica gels, molecular sieves or polyalcohols.
  • the controllers mentioned can each be used alone or as a mixture of two or more of them.
  • the controllers can be either finely dispersed or coarsely dispersed (eg granulated) in the humidifier.
  • Suitable polyalcohols include, for example, alcohols with two or more OH groups and up to about 30 carbon atoms, for example 1,2-ethanediol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 2, 3-butanediol, 1, 5-pentanediol, 1, 6-hexanediol, 1, 8-octanediol, diethylene glycol, neopentyl glycol, 1, 4-
  • the alcohols mentioned can also be present in the dimensionally stable composition as EO or PO addition products with or without a sulfonic acid group. Lactams such as ⁇ -caprolactam can also serve as regulators.
  • regulators means that the amount of water dispensed per unit of time can be limited within certain limits depending on the external conditions and requirements.
  • the dimensionally stable composition can contain fragrances.
  • Fragrances are understood to mean those fragrances that are found in humans Generate a pleasant sense of smell or trigger an improvement in general well-being.
  • the term “fragrances” also encompasses essences and aromas, for example healing fragrances or substances which promote healing, such as the essential oils.
  • fragrances are e.g. in the reference work by E. Ohloff, Riechstoffe und Geruchsinn (ISBN 3-540-5256-2, Springer Verlag) from 1990. Vegetable fragrances, petrochemical or animal fragrances are suitable, for example. Depending on the destination of the humidifier (e.g. bathroom or bedroom), fragrances such as orange peel oil, sandalwood oil or incense can be used.
  • the dimensionally stable composition that can be used according to the invention can furthermore have insecticides or repellents.
  • the insecticides ensure that flies, brakes, mosquitoes, cockroaches, bugs or fleas, for example, are effectively combated, which, for example, have a harmful effect on people as transmitters of diseases.
  • Insecticides may also be present, the effect of which is primarily directed at plant pests. This is particularly recommended if the dimensionally stable composition is used, for example, to maintain a certain level of humidity in rooms that are used for growing useful or ornamental plants.
  • insecticides or repellants in the context of the present invention are, for example, some of the fragrances cited in the above reference work (e.g. clove oil, cinnamon oil, mustard oil), dimethyl phthalate, benzoic acid diethylamide, phenylcyclohexanone, ethylhexanedial, chlorinated hydrocarbons (e.g. DOT), phosphorus compounds, carbamates, nicotine or mineral oils .
  • the dimensionally stable compositions can contain thickeners which, for example, can contribute to the dimensional stability of the composition.
  • organic, high-molecular substances that absorb water while swelling are suitable as thickeners.
  • suitable organic, natural thickeners are agar-agar, carrageenan, tragacanth, gum arabic, alginates, pectins, polyoses, guar gum, locust bean gum, starch, dextrins, gelatin, casein and the like.
  • Organic, modified natural substances for example carboxymethyl cellulose and homologous cellulose ethers, hydroxyethyl and propyl cellulose, core meal ether, starch derivatives and the like can also be used.
  • the organic, fully synthetic thickeners include, for example, polyacrylic and polymethacrylic compounds, vinyl polymers, polycarboxylic acids, polyethers, polyamides and polyurethanes. If appropriate, the use of inorganic thickeners is also possible, these include, for example, polysilicic acids, clay minerals such as montmorillonite, zeolites or silicas. The said thickeners can also serve as regulators by influencing the rate of evaporation of the water.
  • Dyes or pigments or mixtures thereof can also be added to the dimensionally stable compositions, which generally have a decorative character, but can also perform a warning or informative function.
  • the dyes or pigments, or their mixtures can be homogeneously distributed as color-imparting components in the dimensionally stable composition. However, it is also possible to apply the coloring components only superficially to the dimensionally stable composition.
  • the dimensionally stable compositions can thus be used, for example, as a decorative room element or as an advertising medium.
  • Suitable dyes or pigments are, for example, all water-soluble or dispersible substances which are largely harmless from a toxicological point of view.
  • the dimensionally stable compositions can contain moisture or freshness indicators which make the residual moisture content of the dimensionally stable composition optically recognizable or indicate whether the packaging was opened before the intended use.
  • moisture or freshness indicators can, for example, be used in conjunction with a suitable optical measuring system to determine the moisture content of the dimensionally stable composition, even if they are installed in inaccessible places, for example in a ventilation system or in an air conditioning system, without time-consuming and uncomfortable activities, for example opening a Need to perform ventilation system.
  • Suitable moisture and freshness indicators are e.g. Indicator dyes such as phenolphthalein or thymoiphthalein or salts that change color due to changes in water of crystallization (e.g. co-salts).
  • the dimensionally stable compositions can be produced in various ways.
  • the alkali metal soaps of the above carboxylic acids can be dissolved in water at temperatures above about 50 ° C. On cooling, the dimensionally stable compositions to be used according to the invention are then formed.
  • a suitable alkali metal salt for example an alkali metal hydroxide. If such a mixture is then allowed to cool, the dimensionally stable compositions also result.
  • An advantage of the present invention is that the dimensionally stable compositions are suitable for almost any shape due to the simple method of preparation. For example, blocks, balls, cubes, rods, discs, figures and the like are possible.
  • the evaporation rate of the water can also be controlled in a targeted manner via the surface of the moldings.
  • the solid soap structure is advantageous here, ie the moldings do not flow together over time. It is also possible, for example for use in ventilation devices, to pour the dimensionally stable compositions in the liquid state into certain holders which, after the composition has solidified, enable simple use in corresponding devices. After the water and other volatile constituents have evaporated from the dimensionally stable composition, only a mixture of alkali metal carboxylates and possibly non-volatile additives remains. Such a residue can subsequently be used, for example, as a hand or body cleanser. However, it is also possible to use the rest again by appropriate work-up to produce a dimensionally stable composition.
  • the dimensionally stable composition is therefore laid out on a suitable base in a room filled with room air to be humidified or is exposed to an air flow to be humidified in a suitable holder or packaging.
  • the air stream to be humidified of the room air supply is heated or cooled before, during or after the humidification.
  • Another object of the invention is the use of a dimensionally stable composition containing 1 to 40 wt .-% alkali metal carboxylates of carboxylic acids with 8 to 26 carbon atoms and 60 to 99 wt .-% water, in particular a dimensionally stable composition containing 2 to 10 wt .-% % Na-C 12 . 22 - Carboxylate and 70 to 98 wt .-% water, for humidifying room air or a room air supply.
  • the dimensionally stable composition contains 0 to 20% by weight of an additive selected from the group consisting of solvents, regulators, fragrances, insecticides, thickeners, dyes, pigments and moisture indicators, or a mixture of two or more thereof .
  • the dimensionally stable composition is preferably laid out on a suitable base in a room filled with room air to be humidified or exposed to an air flow to be humidified in a suitable holder or packaging.
  • Example 3 gives blue-purple colored shaped bodies. If airtight and watertightly packaged molded articles according to Example 3 are removed from the packaging, the surface discolors after a few minutes (change in pH value due to CO 2 absorption). The consumer sees that the system was unopened and is now starting to work.
  • Example 1 Depending on the positioning in the room, temperature, existing air humidity, the amount and geometry of the moldings, room size and air exchange, the examples emit moisture and odor (example 1) to the environment for a few days to several weeks.
  • Example 1 lasts about 20 to 30% longer compared to Examples 2 and 3 and forms an opaque soap after drying, which e.g. can be used for hand washing.
  • the residues from Examples 2 and 3 are white and can be used for the same purpose.
  • the shaped bodies are neither dirty nor covered with germs after drying.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Air Conditioning Control Device (AREA)
  • Air Humidification (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne un procédé pour l'humidification contrôlée de l'air ambiant ou d'une amenée d'air ambiant, dans lequel un corps moulé aqueux est exposé à l'air ambiant ou à l'amenée d'air ambiant humidifiés. On utilise comme corps moulé aqueux une composition de forme stable contenant des carboxylates de métal alcalin d'acide carboxylique avec environ 8 à 26 atomes de C et de l'eau.
PCT/EP1999/003428 1998-05-28 1999-05-19 Procede pour l'humidification controlee de l'air ambiant Ceased WO1999061544A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP2000550934A JP2002516391A (ja) 1998-05-28 1999-05-19 室内空気または室内用供給空気の加湿方法
DK99953348T DK1095118T3 (da) 1998-05-28 1999-05-19 Fremgangsmåde til kontrolleret befugtning af rumluft
DE59904104T DE59904104D1 (de) 1998-05-28 1999-05-19 Verfahren zur kontrollierten befeuchtung von raumluft
AU42641/99A AU746770B2 (en) 1998-05-28 1999-05-19 Method for the controlled humidification of ambient air
CA002333634A CA2333634A1 (fr) 1998-05-28 1999-05-19 Procede pour l'humidification controlee de l'air ambiant
AT99953348T ATE231540T1 (de) 1998-05-28 1999-05-19 Verfahren zur kontrollierten befeuchtung von raumluft
PL99344402A PL186669B1 (pl) 1998-05-28 1999-05-19 Sposób kontrolowanego nawilżania powietrza w pomieszczeniu
EP99953348A EP1095118B1 (fr) 1998-05-28 1999-05-19 Procede pour l'humidification controlee de l'air ambiant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823898 1998-05-28
DE19823898.3 1998-05-28

Publications (1)

Publication Number Publication Date
WO1999061544A1 true WO1999061544A1 (fr) 1999-12-02

Family

ID=7869200

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/003428 Ceased WO1999061544A1 (fr) 1998-05-28 1999-05-19 Procede pour l'humidification controlee de l'air ambiant

Country Status (12)

Country Link
EP (1) EP1095118B1 (fr)
JP (1) JP2002516391A (fr)
AT (1) ATE231540T1 (fr)
AU (1) AU746770B2 (fr)
CA (1) CA2333634A1 (fr)
DE (2) DE19922517A1 (fr)
DK (1) DK1095118T3 (fr)
ES (1) ES2192867T3 (fr)
PL (1) PL186669B1 (fr)
PT (1) PT1095118E (fr)
TR (1) TR200003115T2 (fr)
WO (1) WO1999061544A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3780420B2 (ja) * 2004-03-31 2006-05-31 小林製薬株式会社 加湿器用芳香液組成物

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992000941A1 (fr) * 1990-07-13 1992-01-23 Avera Fitzhugh Lee Procede et produit servant a liberer de l'eau liee
JPH06207398A (ja) * 1992-11-17 1994-07-26 Mitsubishi Paper Mills Ltd 吸放湿性繊維シート及びその製造法
JPH07229062A (ja) * 1993-07-07 1995-08-29 Mitsubishi Paper Mills Ltd 吸放湿性シート

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992000941A1 (fr) * 1990-07-13 1992-01-23 Avera Fitzhugh Lee Procede et produit servant a liberer de l'eau liee
JPH06207398A (ja) * 1992-11-17 1994-07-26 Mitsubishi Paper Mills Ltd 吸放湿性繊維シート及びその製造法
JPH07229062A (ja) * 1993-07-07 1995-08-29 Mitsubishi Paper Mills Ltd 吸放湿性シート

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 571 (C - 1267) 2 November 1994 (1994-11-02) *
PATENT ABSTRACTS OF JAPAN vol. 095, no. 011 26 December 1995 (1995-12-26) *

Also Published As

Publication number Publication date
EP1095118A1 (fr) 2001-05-02
DE59904104D1 (de) 2003-02-27
TR200003115T2 (tr) 2001-03-21
EP1095118B1 (fr) 2003-01-22
ES2192867T3 (es) 2003-10-16
AU4264199A (en) 1999-12-13
DK1095118T3 (da) 2003-05-12
CA2333634A1 (fr) 1999-12-02
DE19922517A1 (de) 1999-12-02
JP2002516391A (ja) 2002-06-04
PL186669B1 (pl) 2004-02-27
ATE231540T1 (de) 2003-02-15
AU746770B2 (en) 2002-05-02
PL344402A1 (en) 2001-11-05
PT1095118E (pt) 2003-06-30

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