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WO1998035552A1 - Agent calogene de chauffage de fumigant - Google Patents

Agent calogene de chauffage de fumigant Download PDF

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Publication number
WO1998035552A1
WO1998035552A1 PCT/JP1998/000637 JP9800637W WO9835552A1 WO 1998035552 A1 WO1998035552 A1 WO 1998035552A1 JP 9800637 W JP9800637 W JP 9800637W WO 9835552 A1 WO9835552 A1 WO 9835552A1
Authority
WO
WIPO (PCT)
Prior art keywords
agent
calcium oxide
heating
water
heat
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/JP1998/000637
Other languages
English (en)
Japanese (ja)
Inventor
Kenji Takita
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.)
Chugai Pharmaceutical Co Ltd
Original Assignee
Chugai Pharmaceutical Co Ltd
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 Chugai Pharmaceutical Co Ltd filed Critical Chugai Pharmaceutical Co Ltd
Priority to AU58814/98A priority Critical patent/AU5881498A/en
Publication of WO1998035552A1 publication Critical patent/WO1998035552A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/16—Materials undergoing chemical reactions when used
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/20—Combustible or heat-generating compositions

Definitions

  • the present invention relates to an exothermic agent for heating a smoke agent containing highly active calcium oxide and a method for heating the smoke agent using heat generated by a hydration reaction of calcium oxide with high activity.
  • Smoke-killers are agents that smoke pest control substances by heating.
  • a smoker containing a self-combustible substance such as nitrocellulose is reacted with a metal oxide and silicon (a so-called thermite reaction).
  • a direct heating method is known, in which the smoke is itself self-burned by directly heating (igniting) at once using the heat generated by the fumes.
  • the heating method by the thermit reaction is disclosed in Japanese Utility Model Application Laid-Open No. 62-144627 and Japanese Patent Laid-Open No. 1-288218.
  • the heating method by thermite reaction is based on the combustion reaction, so the temperature rises more than necessary at the time of heating, so that the active ingredient in the smoke agent may cause thermal decomposition.
  • the active ingredient in the smoke agent may cause thermal decomposition.
  • Japanese Utility Model Publication No. 5-69922 discloses that quicklime is tableted and molded into a ring or a cylinder and used as a heating element for heating cans.
  • the heating element is merely intended to fill the container, prevent the heating agent from flying off, and uniformly heat the can. The amount of heat required to initiate smoke in a short time after adding water is insufficient.
  • the present invention provides a heat generating apparatus for heating a smoking agent containing calcium oxide, which causes less thermal decomposition of the active ingredient, efficiently heats the smoking agent, and starts smoking immediately. It is intended to provide an agent.
  • the present inventors have conducted intensive studies on a method of heating a smoke agent using high heat generated by a hydration reaction of calcium oxide, and as a result, the heat generation rate when 20 g of calcium oxide was reacted with 6 ml of water. Calcium oxide at a temperature of 5 ° C / sec or more is subjected to a hydration reaction. Can be heated to the desired temperature.
  • the size is smaller than that of a conventional smoker container that uses unformed calcium oxide as a heating agent. It has become possible to make lightweight containers.
  • the present invention provides a heating agent for heating a smoking agent containing calcium oxide having a heat generation rate of 5 ° CZ seconds or more when 20 g of calcium oxide is reacted with 6 ml of water.
  • Book The exothermic agent of the invention is shaped so that the maximum temperature of the surface of the exothermic agent is equal to or higher than the fuming temperature of the smoking agent to be heated by heat generated when calcium oxide is reacted with water. Good.
  • the tableting pressure at that time is preferably from 200 to 400 kg / cm 2 .
  • it is tablet-formed into a shape of a perforated molded body. Examples of the shape of the perforated molded body include a cylindrical shape, a ring shape, and a cup shape.
  • the present invention also provides a method for heating a smoking agent by heat generated when calcium oxide having a heat generation rate of 5 ° CZ seconds or more (when 20 g of calcium oxide is reacted with 6 ml of water) is reacted with water. And a method for heating a smoking agent. Less than 100% by weight of calcium oxide, based on the total weight of the smoke agent to be heated, may be reacted with water. Preferably, calcium oxide is reacted with water in the presence of an inorganic acid and Z or an organic acid.
  • Drugs that can be used as fumigation agents include insecticides, various germicides I] ⁇ and their mixtures according to the purpose.
  • insecticides include, for example, pyrethroids such as permethrin, seculin, resmethrin, cyphenothrin, pralethrin, phenothrin, humvalerate, fenprono, ° trin, etofenprox, etc.
  • Organic drugs such as organic compounds, phennitrothion, dichlorvos (DDVP), diazinon, protifos, and vitex, and carbamates such as propoxur and methoxadiazon.
  • fungicides examples include fungicides for agricultural chemicals such as isophthalonitrile, procymidone, biletone, and molestan, thiabendazole, 3-odo-2—propynylbutyl carbamate (IPBC), IF-100, etc.
  • IPBC 3-odo-2—propynylbutyl carbamate
  • IF-100 IF-100
  • Environmental sanitizing germicides can be used.
  • the content of the above drug is preferably 2% by weight or more and 20% by weight or less based on the total weight of the smoking agent.
  • the heating method of the present invention can be used for both smokers heated by the direct heating method and smokers heated by the indirect heating method.
  • Such fumigation agents include the above-mentioned chemicals, heat generation agents for fumigation agents, heat-generating aids such as melamine and zinc oxide, and inorganic minerals such as clay, kaolin, talc, and diatomaceous earth. Addition is also possible.
  • binders and fragrances such as carboquine methylcellulose, hydroxyquinepropyl methylcellulose, polyvinyl alcohol, starch, potency enhancers such as piperonyl butoxide, S-421, and oxidation of BHT, tocoprole, etc.
  • An additive such as an inhibitor may be contained.
  • the present invention provides a smoker heating device in which the above-mentioned exothermic agent is housed in a container, wherein the container is capable of efficiently transmitting heat generated by a hydration reaction or the like to the smoker in contact with the container. It should be something you can do. For example, preferably, 5 W / m '° C or higher, more favorable Mashiku as container according good c container having a 1 0 WZm ⁇ ° C or more heat conductivity (the case of 2 5 ° C), Examples include those made of a material selected from aluminum, tin, copper, iron, and the like. Further, the container further when it c being sealed Further, the present invention provides a fumigant kit containing the above-described heating agent and smoking agents. The smoker may be either a smoker heated by a direct heating method or a smoker heated by an indirect heating method as described above.
  • the “heat generation rate” indicates an average temperature increase per second from the start time of heat generation by the hydration reaction of calcium oxide and water to the time to reach the maximum temperature.
  • the heat generation rate is 25 ° C or room temperature.
  • Powder or granules of calcium oxide are placed in a glass tube at 2 Og, and hydrated with 6 ml of water. Can be determined by measuring the maximum internal temperature and calculating the average temperature rise per second from the start of the hydration reaction to the maximum temperature.
  • the heat generation rate of calcium oxide which has been conventionally used for heating a smoking agent, is about 3 ns or less when 20 g of oxidizing power is reacted with 6 ml of water.
  • the heat generation rate of calcium oxide used in the present invention is at least 5 ° CZ seconds, preferably at least 6 ° CZ seconds when 20 g of calcium oxide is reacted with 6 ml of water.
  • the heat generation rate when reacting 20 g of calcium oxide with 6 ml of water used in the present invention is 5 ° C / sec.
  • the above calcium oxide is hereinafter referred to as “highly active calcium oxide”.
  • the “perforated molded body” in the present invention is a columnar, cubic, It refers to a molded article such as a rectangular parallelepiped, polygonal column, polygon, or sphere, and the hole may or may not penetrate the molded article. When the hole does not penetrate, it is desirable that the depth of the hole is not less than 1/3 of the thickness of the molded body.
  • Examples of such a perforated formed body include a formed body having a cylindrical shape, a ring shape, a cup shape, and the like.
  • Highly active calcium oxide is, for example, a method of dehydrating slaked lime by heating it to 550 to 770 ° C for about 10 minutes to 6 hours under conditions substantially free of carbon dioxide. (See Japanese Patent Application Publication No. 1-3088885).
  • the powdered granules of highly active calcium oxide produced by the above method may be used as they are, but preferably, they are compressed into tablets by a conventional method, and Into a ring, ring, cup, etc.
  • the tableting pressure at this time is preferably from 200 to 400 kg / cm 2 . If the tableting pressure is less than 200 kg / cm 2, it is difficult to obtain a good molded product, and if it exceeds 400 kg / cm 2 , cracks may occur in the molded product.
  • a lubricant such as magnesium stearate, calcium stearate, talc, or sodium lauryl sulfate further improves tableting moldability. can do.
  • the dimensions of the tablet diameter ( ⁇ ) and hole diameter ( ⁇ ) are not particularly specified. It may be determined according to the desired calorific value and the size of the storage container.
  • the ratio ( ⁇ 2Z01) of the tableting diameter ( ⁇ 1) to the hole diameter ( ⁇ 2) is 0.1 to 0.8, preferably 0.2. ⁇ 0.5.
  • the weight of each molded article varies depending on the desired calorific value, but is generally 1 to 24 g, preferably 2 to 15 g.
  • the heat generating agent for heating a smoking agent of the present invention can be used alone, or can be used by stacking a plurality of them.
  • the heating agent for heating the smoker of the present invention requires much more weight than the conventional smoker for heating and smoking the calcium oxide for heating the smoker.
  • the smoker can be heated and smoked with a smaller weight of calcium oxide than the smoker.
  • the exothermic agent for smokers of the present invention becomes apparently more specific by tableting, and it is possible to design a container form with a smaller heating space than before, and it is possible to make it smaller than before. ⁇ It is possible to design a smoker container that is lighter.
  • the exothermic agent for heating the smoking agent of the present invention is sealed in a highly heat-conductive container made of aluminum, tin, copper, iron, or the like, so that the heating of the smoking agent, which has been reduced in size and weight, can be performed. Equipment can be made.
  • the method of heating a smoke agent with calcium oxide has been to heat the smoke agent from the outside of the container containing the smoke agent.
  • a smoker container that heats the smoker by installing a heating device inside the container that holds the smoker, making the smoker smaller and lighter than before. It is feasible to design a smoke agent vessel.
  • the above-described heating device can be used as an ignition device for directly heating a smoking agent containing a self-combustible substance, instead of an ignition device using reaction heat of a thermite reaction.
  • the heating device it is possible to suppress the thermal decomposition of the active ingredient at the time of ignition of the smoking agent, as compared with the ignition by the reaction heat of the thermite reaction.
  • the heating of the smoking agent is good even if the hydration reaction is performed with only water, but in the presence of an inorganic acid and / or an organic acid.
  • the smoker can be heated more efficiently, and the time until smoke starts can be adjusted.
  • the addition of the acid further increases the maximum surface temperature.
  • examples of the inorganic acid include boric acid, nitric acid, hydrochloric acid, perchloric acid and the like.
  • examples of the organic acid include succinic acid, oxalic acid, lingic acid, ascorbic acid, and citric acid.
  • the inorganic or organic acid may be added in an amount of 0.1 to 20%, preferably 1 to 5%, based on water.
  • the exothermic agent for heating a smoker of the present invention can be used for any smoker conventionally used by heating by a direct heating method or an indirect heating method.
  • the ripening agent of the present invention can be combined with a conventional smoker to form a smoker kit.
  • the amount of the exothermic agent is 5 to 100% by weight, preferably 10 to 50% by weight, based on the total weight of the smoke agent. Good.
  • the amount of the exothermic agent is 20 to 100% by weight, preferably 50 to 200% by weight, based on the total weight of the smoke agent. It is good.
  • the exothermic agent and the smoker may not be in direct contact with each other but may be housed in different adjacent containers.
  • exothermic agent for heating a smoking agent of the present invention can be used for heating other than the smoking agent depending on the calorific value of the hydration reaction.
  • Example 1 Manufacturing method of exothermic agent for fumigation agent (granular)
  • Example 3 Manufacturing method of exothermic agent for heat generation of smoking agent (molded product without hole)
  • Example 4 Manufacturing method of exothermic agent for heat generation of smoking agent (molded product without hole)
  • Example 2 In the same manner as in Example 3, 0.4 g of the granular highly active calcium oxide of 1 to 5 mm in Example 1 was formed into a columnar shape having a tablet diameter ( ⁇ ) of 10 mm and a thickness of 5 mm. Comparative Example 1. Manufacturing method of exothermic agent for fumigation heat generation (perforated product)
  • Example 2 20 g of the highly active granular calcium oxide prepared in Example 1 was placed in a 0.27 mm glass tube, and at a temperature of 25 ° C, 6 ml of water was injected with a syringe to obtain calcium oxide. The internal maximum temperature was measured with a CA thermocouple located in the center, and the heating rate was calculated from the maximum temperature arrival time.
  • 20 g of granular calcium oxide of a reagent (manufactured by Wako Pure Chemical Industries) and a conventional product were measured in the same manner. Table 1 shows the results. Table 1 Maximum internal temperature and heat generation rate
  • the exothermic agent for heating the smoker of Example 2, Example 3 and Comparative Example 1 was 3 tablets each, and the exothermic agent for heating the smoker of Example 4 was 30 tablets, inner diameter 22 mm, height 5 It was inserted into an aluminum tube having a thickness of 0 mm and a thickness of 0.75 mm, and 4 ml of water or a 1% by weight aqueous solution of boric acid was added. Thereafter, the maximum surface temperature was measured by an infrared imaging device. Table 2 shows the results.
  • the actual heating test of the smoker was carried out by contacting the aluminum tubes of various calcium oxides conducted in Test Example 2 with 25 g of smoker granules.
  • Table 3 shows the results.
  • the formulation of the smoker granules is as follows,
  • the heat of hydration reaction of calcium oxide can be used not only for the indirect heating method for the smoke agent but also for the direct heating method.
  • the heating agent for heating the smoking agent of the present invention has a higher apparent specific gravity by tableting and molding, so that the heating agent for heating the smoking agent is smaller than the conventional container of the smoking agent using calcium oxide as the heating agent. Smaller and lighter containers can be made.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Plant Pathology (AREA)
  • Toxicology (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

La présente invention concerne un agent calogène de chauffage de fumigant, lequel agent contient de l'oxyde de calcium capable d'un débit calorifique d'au moins 5 °C/s pour 20g d'oxyde de calcium en réaction avec 6 ml d'eau. L'invention concerne également un procédé de chauffage d'un fumigant consistant à chauffer un fumigant au moyen de la chaleur dégagée par un oxyde de calcium capable d'un débit calorifique d'au moins 5 °C/s en réaction avec de l'eau, à raison de 20g d'oxyde de calcium pour 6 ml. L'invention concerne enfin un réchaud à fumigant, le stockage de l'agent calogène dans un récipient, et un nécessaire à fumigant contenant un agent calogène et le fumigant.
PCT/JP1998/000637 1997-02-17 1998-02-17 Agent calogene de chauffage de fumigant Ceased WO1998035552A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU58814/98A AU5881498A (en) 1997-02-17 1998-02-17 Heat-generating agent for heating fumigant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3234197 1997-02-17
JP9/32341 1997-02-17

Publications (1)

Publication Number Publication Date
WO1998035552A1 true WO1998035552A1 (fr) 1998-08-20

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PCT/JP1998/000637 Ceased WO1998035552A1 (fr) 1997-02-17 1998-02-17 Agent calogene de chauffage de fumigant

Country Status (2)

Country Link
AU (1) AU5881498A (fr)
WO (1) WO1998035552A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000042117A1 (fr) * 1999-01-14 2000-07-20 Earth Chemical Co., Ltd. Preparation de transpiration thermique et procede de transpiration thermique d'un agent chimique utilisant cette preparation
US10036574B2 (en) 2013-06-28 2018-07-31 British American Tobacco (Investments) Limited Devices comprising a heat source material and activation chambers for the same
US10542777B2 (en) 2014-06-27 2020-01-28 British American Tobacco (Investments) Limited Apparatus for heating or cooling a material contained therein
US11064725B2 (en) 2015-08-31 2021-07-20 British American Tobacco (Investments) Limited Material for use with apparatus for heating smokable material
US11241042B2 (en) 2012-09-25 2022-02-08 Nicoventures Trading Limited Heating smokeable material
WO2022184946A1 (fr) * 2021-03-02 2022-09-09 Global Termobiomasa S.L. Dispositif thermique autonome multi-usages
US11452313B2 (en) 2015-10-30 2022-09-27 Nicoventures Trading Limited Apparatus for heating smokable material
US11659863B2 (en) 2015-08-31 2023-05-30 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
US11672279B2 (en) 2011-09-06 2023-06-13 Nicoventures Trading Limited Heating smokeable material
US11825870B2 (en) 2015-10-30 2023-11-28 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
US11924930B2 (en) 2015-08-31 2024-03-05 Nicoventures Trading Limited Article for use with apparatus for heating smokable material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55108278A (en) * 1979-02-08 1980-08-20 Earth Chem Corp Ltd Fumigant and fumigation
JPS60130501A (ja) * 1983-12-17 1985-07-12 Earth Chem Corp Ltd 燻蒸用薬剤組成物
JPH01315480A (ja) * 1988-03-24 1989-12-20 Sekisui Chem Co Ltd 発熱組成物
JPH01314854A (ja) * 1988-06-14 1989-12-20 Yoshizawa Sekkai Kogyo Kk 生石灰の水和発熱を利用するホットプレートおよび発熱剤

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55108278A (en) * 1979-02-08 1980-08-20 Earth Chem Corp Ltd Fumigant and fumigation
JPS60130501A (ja) * 1983-12-17 1985-07-12 Earth Chem Corp Ltd 燻蒸用薬剤組成物
JPH01315480A (ja) * 1988-03-24 1989-12-20 Sekisui Chem Co Ltd 発熱組成物
JPH01314854A (ja) * 1988-06-14 1989-12-20 Yoshizawa Sekkai Kogyo Kk 生石灰の水和発熱を利用するホットプレートおよび発熱剤

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6569907B1 (en) 1999-01-14 2003-05-27 Earth Chemical Co., Ltd. Heat transpiration preparation and method of the heat transpiration of chemical by using the same
WO2000042117A1 (fr) * 1999-01-14 2000-07-20 Earth Chemical Co., Ltd. Preparation de transpiration thermique et procede de transpiration thermique d'un agent chimique utilisant cette preparation
US11672279B2 (en) 2011-09-06 2023-06-13 Nicoventures Trading Limited Heating smokeable material
US12041968B2 (en) 2011-09-06 2024-07-23 Nicoventures Trading Limited Heating smokeable material
US11241042B2 (en) 2012-09-25 2022-02-08 Nicoventures Trading Limited Heating smokeable material
US10036574B2 (en) 2013-06-28 2018-07-31 British American Tobacco (Investments) Limited Devices comprising a heat source material and activation chambers for the same
US10542777B2 (en) 2014-06-27 2020-01-28 British American Tobacco (Investments) Limited Apparatus for heating or cooling a material contained therein
US11659863B2 (en) 2015-08-31 2023-05-30 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
US11924930B2 (en) 2015-08-31 2024-03-05 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
US11064725B2 (en) 2015-08-31 2021-07-20 British American Tobacco (Investments) Limited Material for use with apparatus for heating smokable material
US11452313B2 (en) 2015-10-30 2022-09-27 Nicoventures Trading Limited Apparatus for heating smokable material
US11825870B2 (en) 2015-10-30 2023-11-28 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
US12016393B2 (en) 2015-10-30 2024-06-25 Nicoventures Trading Limited Apparatus for heating smokable material
US12219986B2 (en) 2015-10-30 2025-02-11 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
WO2022184946A1 (fr) * 2021-03-02 2022-09-09 Global Termobiomasa S.L. Dispositif thermique autonome multi-usages

Also Published As

Publication number Publication date
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