WO2009122228A1 - Composition antigel améliorée - Google Patents

Composition antigel améliorée Download PDF

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Publication number
WO2009122228A1
WO2009122228A1 PCT/IB2008/000758 IB2008000758W WO2009122228A1 WO 2009122228 A1 WO2009122228 A1 WO 2009122228A1 IB 2008000758 W IB2008000758 W IB 2008000758W WO 2009122228 A1 WO2009122228 A1 WO 2009122228A1
Authority
WO
WIPO (PCT)
Prior art keywords
ions
icing
chloride
icing composition
composition
Prior art date
Application number
PCT/IB2008/000758
Other languages
English (en)
Inventor
Fernando H. Garcia
Maria Fernanda Garcia
Original Assignee
La Perla Srl
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 La Perla Srl filed Critical La Perla Srl
Priority to PCT/IB2008/000758 priority Critical patent/WO2009122228A1/fr
Priority to PCT/IB2009/005141 priority patent/WO2009122265A1/fr
Publication of WO2009122228A1 publication Critical patent/WO2009122228A1/fr

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
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
    • C09K3/185—Thawing materials

Definitions

  • the present invention relates to a anti-icing composition applicable on surfaces of different type, in particular, for transit of vehicles, or pedestrians, such as roads, airport runways, pavements, etc. for preventing ice from forming (anti- icing) , or removing a layer of ice already formed (de- icing) .
  • solid salt usually sodium chloride, calcium chloride or magnesium chloride.
  • the process through which the salt lowers the freezing point of water comprises, in summary, the dissociation of the molecules of salt into ions and their electrostatic bonding to the water molecules.
  • compositions have a high rate of corrosivity due mainly to their acidity. This can cause corrosion phenomena, for example for vehicles that move on the roads on which the salt have been scattered.
  • sodium chloride is preferred with respect to the use of calcium chloride for lower costs and easy availability.
  • the use of calcium chloride is, furthermore, limited to dissolve the ice already formed, since on a dry road it tends to form a slippery patina.
  • the sodium chloride can be used only for not too low temperatures. Furthermore, it causes corrosion and environmental problems if used in large amounts.
  • Organic substances are also known commonly used as anti-icing agents, such as potassium acetate, sodium acetate, ammonium phosphate, ammonium nitrate, alcohols with low molecular weight and urea.
  • these substances have a high environmental impact.
  • the alcohols with low molecular weight volatilize easily and, even if preserving the ground, pollute the surrounding atmosphere.
  • a general drawback of the anti-icing agents is that of forming a slippery patina on the road surface, reducing the beneficial effects to avoid or removing ice.
  • composition described is effective also in conditions of very cold temperatures and has a low environmental impact.
  • this anti-icing composition like also the other cited similar products has the disadvantage of making the treated surface very slippery .
  • a parameter for measuring the slipperiness of a surface is the slipperiness coefficient.
  • a surface with high slipperiness coefficient causes relevant disadvantages. For example, in case of tarred surfaces, such as roads, airport runways, etc. A high slipperiness coefficient affects the adherence of the vehicles. Even the safety of the pedestrians that walk on a portion of road, or of pavement, with high slipperiness coefficient is seriously endangered.
  • compositions of the prior art used for preventing the production of a layer of ice on a surface, or to dissolve the ice already formed are not appropriate for a use on surfaces for transit of vehicles, or pedestrians.
  • an anti-icing solution whose main feature is of providing, furthermore: - an additive to mix to the anti-icing solution in a measured amount, said additive being a polyhydroxylated compound, i.e. having at least two hydroxyl groups -OH such that the treated surface is not slippery.
  • the polyhydroxylated compound to mix to the anti-icing solution is selected from the group comprised of:
  • the additive is present in the final anti-icing composition in a volume percentage larger than 2%, advantageously set between 2% and 20%.
  • the polyhydroxylated compound increases the solvation of the anti-icing composition. This way, a production is avoided of gelatinoid compounds that cause slipperiness as observed on the surfaces treated with the products of the prior art.
  • the anti-icing solution comprises:
  • the aqueous solution may have a pH set between 7.2 and 10.5.
  • the aqueous solution has a pH set between 7.3 and 9.5.
  • the aqueous solution has a pH set between 7.5 and 8.5.
  • the or each ion species of the aqueous solution having an alkaline pH has the following concentration :
  • SiO 3 Silicate ions
  • the aqueous solution having an alkaline pH can comprise the, or each, of the following ions in the indicated concentration:
  • Mg 2+ ions set between 500 mg/1 and 3000 mg/1;
  • Ca 2+ ions set between 100 mg/1 and 1000 mg/1;
  • the aqueous solution is sea water.
  • the or each chloride can be a alkaline metal chloride or a alkaline earth metal chloride .
  • the or each chloride is selected from the group comprised of:
  • the chloride is a combination of calcium chloride and magnesium chloride.
  • the anti-icing composition can provide :
  • the anti-icing composition provides : - calcium chloride: in an amount set between 10% and 40% by weight;
  • the anti-icing composition provides:
  • the metal chlorides cited such as the calcium chloride and the magnesium chloride, are strong electrolytes. Therefore in an aqueous solution they dissociate completely into metal ions, for example Ca 2+ and Cl ⁇ and Mg 2+ and Cl " , respectively.
  • the "shield" effect of the weak electrolytes increases, in particular, the distance between the calcium ions (Ca 2+ ) and the chloride ions
  • compositions of a anti- icing compound of the prior art composition A
  • compositions B-E compositions of some anti-icing compounds, according to the invention
  • compositions A-E have been then tested analysing for each of them the slipperiness coefficient produced on a plate of concrete.
  • the plate of concrete has been chosen with an irregular surface in order to reproduce a real situation.
  • the upper surface of the plate of concrete has been wetted with a known volume (66 ml) of each compositions A-E of table I. Then, the slipperiness coefficient has been determined of the treated surface by computing the static friction coefficient ( ⁇ o) . This has been determined positioning on the treated surface a body P of prismatic shape of weight equal to 384.20 gr, connected to a container filled of sand.
  • the friction coefficient has been computed, in conditions of dry surface and after having wetted the surface with distilled water and each compositions A-E.
  • higher values ( ⁇ o : 0.508) of the static friction coefficient has been detected in conditions of dry surface.
  • This value is slightly decreased ( ⁇ o : 0.440) after having wetted with distilled water the plate of concrete, for then reducing drastically ( ⁇ o : 0.251) after having treated the surface of the plate of concrete with the composition of the prior art.
  • Such composition is then not adapted to be applied to surfaces for transit of vehicles and/or pedestrians.
  • the value of the friction coefficient has been measured, after the application of the composition with salt, at 0.434 if the surface is treated with composition B, according to the invention. This shows the positive effects on the slipperiness coefficient of the additive even in a low amount (1% in volume) .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)

Abstract

L'invention porte sur une composition antigel qui peut être utilisée sur des surfaces telles que des routes, des trottoirs, des pistes d'aéroport, etc. pour dissoudre une couche de glace déjà formée, ou pour empêcher de la glace de se former. Cette composition inclut une solution antigel et un additif à mélanger avec la solution antigel dans une quantité mesurée, ledit additif étant un composé polyhydroxylé, à savoir possédant au moins deux groupes hydroxyle, -OH, de telle sorte qu'une surface traitée ne soit pas glissante. L'additif est présent dans ladite composition antigel dans un pourcentage en volume supérieur à 2 %, en particulier réglé entre 2 % et 20 %. Le composé polyhydroxylé mélangé à ladite solution antigel peut être choisi dans le groupe incluant : le glycérol; le mannitol; le sorbitol; le lactulose; le xylitol; le lévulose; le sucrose; le glucose; une combinaison de ceux-ci.
PCT/IB2008/000758 2008-03-31 2008-03-31 Composition antigel améliorée WO2009122228A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IB2008/000758 WO2009122228A1 (fr) 2008-03-31 2008-03-31 Composition antigel améliorée
PCT/IB2009/005141 WO2009122265A1 (fr) 2008-03-31 2009-03-31 Composition anti-gel améliorée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2008/000758 WO2009122228A1 (fr) 2008-03-31 2008-03-31 Composition antigel améliorée

Publications (1)

Publication Number Publication Date
WO2009122228A1 true WO2009122228A1 (fr) 2009-10-08

Family

ID=40070953

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/IB2008/000758 WO2009122228A1 (fr) 2008-03-31 2008-03-31 Composition antigel améliorée
PCT/IB2009/005141 WO2009122265A1 (fr) 2008-03-31 2009-03-31 Composition anti-gel améliorée

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/005141 WO2009122265A1 (fr) 2008-03-31 2009-03-31 Composition anti-gel améliorée

Country Status (1)

Country Link
WO (2) WO2009122228A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150108394A1 (en) * 2013-10-18 2015-04-23 Nature's Own Source, Llc Deicing composition and methods of making the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10047266B1 (en) * 2017-05-04 2018-08-14 Yueyu Ni Energy-saving and environment-friendly anti-freezing solution for water system engine
CN112920775B (zh) * 2019-12-06 2022-12-09 济南圣泉集团股份有限公司 一种糖醇组合物及其制备方法和应用
CN113736271B (zh) * 2021-09-03 2022-09-13 广西路冠科技投资发展有限责任公司 一种复配双改性沥青混合料添加剂及其制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004679A1 (fr) * 1986-12-19 1988-06-30 Talent Org Szervezó Kisszövetkezet Composition de degivrage des routes et emplacements publics
US6299793B1 (en) * 1998-01-07 2001-10-09 Sears Petroleum & Transport Corp. Deicing solution
US6562256B1 (en) * 2002-05-06 2003-05-13 Nch Corporation Self-dispersing particulate composition and methods of use
WO2006116254A1 (fr) * 2005-04-26 2006-11-02 Mli Associates, Llc Fluides antigivrage ou de degivrage etant benins sur le plan environnemental utilisant des sous-produits de traitement de triglycerides

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711409A (en) * 1970-11-23 1973-01-16 D Ayres Ice-preventive and deicing oil-in-water emulsion
PT85614B (pt) * 1986-08-28 1990-05-31 Union Carbide Canada Ltd Processo para a preparacao de composicoes anticongelantes e antigelo para aeronaves
US6540934B2 (en) * 2001-07-13 2003-04-01 Metss Corporation Corrosion inhibited runway deicing fluid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004679A1 (fr) * 1986-12-19 1988-06-30 Talent Org Szervezó Kisszövetkezet Composition de degivrage des routes et emplacements publics
US6299793B1 (en) * 1998-01-07 2001-10-09 Sears Petroleum & Transport Corp. Deicing solution
US6562256B1 (en) * 2002-05-06 2003-05-13 Nch Corporation Self-dispersing particulate composition and methods of use
WO2006116254A1 (fr) * 2005-04-26 2006-11-02 Mli Associates, Llc Fluides antigivrage ou de degivrage etant benins sur le plan environnemental utilisant des sous-produits de traitement de triglycerides

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150108394A1 (en) * 2013-10-18 2015-04-23 Nature's Own Source, Llc Deicing composition and methods of making the same
US9382464B2 (en) * 2013-10-18 2016-07-05 Nature's Own Source, Llc Deicing composition and methods of making the same

Also Published As

Publication number Publication date
WO2009122265A1 (fr) 2009-10-08

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