US3505237A - Steam iron additive composition - Google Patents

Steam iron additive composition Download PDF

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Publication number
US3505237A
US3505237A US620655A US3505237DA US3505237A US 3505237 A US3505237 A US 3505237A US 620655 A US620655 A US 620655A US 3505237D A US3505237D A US 3505237DA US 3505237 A US3505237 A US 3505237A
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United States
Prior art keywords
water
steam
composition
silicone
iron
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Expired - Lifetime
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US620655A
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English (en)
Inventor
Roger C Steinhauer
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Armour and Co
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Armour and Co
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Publication date
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances

Definitions

  • My invention pertains to an aqueous polyethylene glycol and silicone fluid composition which may be added to the water in the reservoir of steam producing apparatus such as steam irons to enhance steam production and to change the character of hard mineral scales within such apparatus.
  • Steam irons generally comprise an electrically heat controlled sole plate and a reservoir for water which is heated in the iron and released therefrom as steam through holes in the sole plate.
  • the water is either heated to steam in the reservoir; or, in the more popular style of steam iron commonly called the flash boiler type, the water is released from the reservoir through an actuated needle valve in a drop-wise fashion, and when each drop of water comes into contact with the hot sole plate it flashes to steam and escapes through the holes in the sole plate.
  • Polyethylene glycol esters prepared from polyethylene glycols having molecular weights of from 400 to 1000 have been used in mixture with hydrocarbon soluble organopolysiloxane for defoaming latex paints and adhesive materials (United States Patent 2,843,551), Also, polyoxyalkylene glycols having a molecular weight of from 1000 to 11,500 have been used in a method for inhibiting foam formation in boiler water, under super-atmospheric temperature and pressure conditions, with a high concentration of total dissolved solids in the water (United States Patent 2,846,404).
  • My invention relates to a new composition of matter, said composition possessing excellent utility for increasing steam production in steam promoting apparatus. More particularly it relates to a composition which may be added to the water in a steam iron for purposes of promoting steam production and of changing the character of hard water scale build-up.
  • my invention may be exemplified by the composition to be added to the water in a steam iron comprising, in combination, a stable oil in water emulsion of (1) a polyethylene glycol having a molecular weight of from about to 1000, (2) a s'iloxane -polyoxyethylene block copolymer having a molecular weight of from about 400 to 600, (3) an aqueous formaldehyde solution, (4) a relatively nonvolatile perfume, (5) a relatively nonvolatile dye and (6) distilled or demineralized water.
  • the polyethylene glycol and the siloxane-polyoxyethylene block copolymer are essential active ingredients of my invention; the other components may be added for a preferred composition accomplishing the above and other objects.
  • About one part of the composition by volume may be added to about nine parts by volume of either tap Water, demineralized or distilled water for use in steam irons.
  • the novel composition of the present invention contains a polyethylene glycol as one essential component.
  • the polyethylene glycols suitable for use in the practice of this invention are characterized by a plurality of ether linkages and two terminal hydroxyl groups, and have a molecular weight of from about 120 to 1000. I prefer to use polyethylene glycols having a molecular weight of from about to about 600. Especially desirable polyethylene glycols are heat stable, less hygroscopic and afford better lubricity than simple glycols and glycerine, have a boiling point of approximately 280" to 310 F., and a molecular weight of from about to about 210.
  • the amount of the polyethylene glycol in the composition may vary over wide ranges depending on the use ratio of the composition in the water to be steamed.
  • a preferred concentration is from about 7% to about 10% by volume in a composition to be used in a steam iron at a rate of one part of composition by volume to nine parts by volume of Water.
  • the composition of the present invention contains as a second essential ingredient a siloxane-polyoxyalkylene block copolymer, or silicone fluid.
  • Silicone fluids suitable for use in the practice of this invention are organosilicone fluids with surface active properties, having a molecular weight of from 400 to 600, which embody the properties of both organic and silicone oils and impart good lubrication and anti-wear properties. Silicone fluids having a molecular weight of from about 500 to about 550 are preferred.
  • the deforming properties of the silicone fluids useful in my invention tend to inhibit bubble formation thereby enhancing steam liberation. Concentration of the useful silicone fluids in my composition may vary from 0.01% to 10%, again depending upon use ratio of the composition in the water. A preferred concentration is from about 0.05% to about 1.5% concentration in a :omposition to be used in a steam iron at a rate of one part by volume of composition to nine parts by volume of water.
  • proportions of the two essential ingredients are not critical. However, I generally prefer proportions by volume of the glycol to the silicone fluid ranging from about 1:1 to about 30:1 to accomplish the objects of my invention.
  • the third component of my composition exemplified in the above specific embodiment is an aqueous solution of formaldehyde.
  • Such solution is preferably at 36% active formalin solution but may be any other like formaldehyde yielding material. Its role in the composition is to serve as a preservative. It is not essential that formaldehyde or like substance be present in the composition, but its presence is desirable due to the fact that aqueous solutions of polyethylene glycol serve as a good medium for the growth of mold. Therefore, it is useful to incorporate in the composition a concentration of from about 0.05% to 1.0% of a 36% active formalin solution. A preferred concentration is from 0.1% to 0.2%.
  • compositions exemplified in the specific embodiment hereinabove are a perfume and a dye. These are optional components, and if they are used at all it is preferred that they be non-volatile and that their amounts be kept to an absolute minimum.
  • the concentration of my composition in the water to be steamed may vary over a wide range. I may use the composition as is or in a dilution ratio. A dilution ratio ranging from about 1:1 to about 100:1 is generally desirable when the composition is used in steam irons. About 7:1 to about 10:1 is preferred. The concentration is not critical and concentrations outside these ranges may be used, but without substantial enhanced effect.
  • a thermostatically controlled hot plate was positioned on the base of a ring stand and two disposable aluminum weighing dishes were placed on the hot plate. Two 50 ml. burets were clamped to the ring stand so that each was positioned over an aluminum dish, and the burets were,
  • distilled water was used in order to determine the residual properties of the compounds in the absence of hard water salts.
  • tap water having a hardness of 135 ppm. was used in the solution and compared to a tap water only control.
  • the solutions contained an active concentration of 0.5% of the compounds being evaluated.
  • the hot plate was adjusted to maintain the aluminum dishes at a temperature of 350 F. and the contents were allowed to drip into the hot aluminum dishes at a rate that would prevent pooling of the liquid. During this operation the steam producing properties of the solutions were visually observed and recorded.
  • moting apparatus comprising from 0.05% to 50% concentration of a polyethylene glycol having a molecular weight of from about 120 to 1000, and from 0.01%
  • siloxane-polyoxyethylene block copolymer having a molecular weight of from 400 to 600 and the balance of the composition being water.
  • composition of claim 1 in which the molecular weight of said glycol is from about 175 to about 600.
  • composition of claim 1 in which the molecular weight of said copolymer is from about 500 to about 550.
  • composition of claim 1 in which the concentration of said glycol is from about 7% to about 10%.
  • composition of claim 1 in which the contration of said copolymer is from about 0.05 to about 1.5%.
  • composition of claim 1 in which the composition includes from 0.05% to 1% of a 36 active formalin solution.
  • Example II Using 3.4 cups of the composition of Example II per gallon of tap water having a hardness of 37 grains, I evaluated the composition for the length of time it could be continuously steamed from this style steam iron before clogging the iron at the needle valve seat. The water was siphoned continuously into the iron reservoir and allowed to steam until the iron clogged. I found that the iron did not clog until after 6.4 gallons had been steamed. Repeating the evaluation using the same composition addition rate and the same composition but without the perfume component, 7.1 gallons of this water steamed through the iron before it clogged.
  • composition of claim 1 added to said water at a dilution ratio ranging from about 7:1 to about 10:1.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
US620655A 1967-03-06 1967-03-06 Steam iron additive composition Expired - Lifetime US3505237A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62065567A 1967-03-06 1967-03-06

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US3505237A true US3505237A (en) 1970-04-07

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BE (1) BE711657A (is")
GB (1) GB1203497A (is")

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3652423A (en) * 1969-10-01 1972-03-28 Eugene C Roberts Humidifier preparatory solution of formaldehyde, polyoxypropylene glycol-ethylene oxide condensation product and water and method of use
US3962119A (en) * 1971-08-06 1976-06-08 Drew Chemical Corporation Non-foaming dispersing composition
US4010110A (en) * 1971-08-06 1977-03-01 Drew Chemical Corporation Process for dispersing contaminants in circulating water or polar organic liquid system
US4127494A (en) * 1977-02-28 1978-11-28 Nalco Chemical Company Polyether polyamines having inverse water solubility as stream generation aids
US5707553A (en) * 1994-02-25 1998-01-13 Sawyer; Melvyn Lloyd Anti-corrosion, quick drying distilled water solution for autoclave sterilizers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2757364B1 (fr) * 1996-12-20 1999-02-26 Seb Sa Appareil electromenager avec moyen anti-tartre

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467177A (en) * 1944-12-30 1949-04-12 Standard Oil Dev Co Heat exchange media
US2843551A (en) * 1954-09-20 1958-07-15 Nopco Chem Co Defoaming composition
US2846404A (en) * 1956-05-28 1958-08-05 Nat Aluminate Corp Steam generation and compositions for inhibiting foam therein
US2990377A (en) * 1955-08-01 1961-06-27 Dow Corning Organosiloxane esters as emulsifying agents
US3359212A (en) * 1964-06-19 1967-12-19 Union Carbide Corp Aqueous mixture and silicone oil in water emulsion containing siloxane wetting agents

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467177A (en) * 1944-12-30 1949-04-12 Standard Oil Dev Co Heat exchange media
US2843551A (en) * 1954-09-20 1958-07-15 Nopco Chem Co Defoaming composition
US2990377A (en) * 1955-08-01 1961-06-27 Dow Corning Organosiloxane esters as emulsifying agents
US2846404A (en) * 1956-05-28 1958-08-05 Nat Aluminate Corp Steam generation and compositions for inhibiting foam therein
US3359212A (en) * 1964-06-19 1967-12-19 Union Carbide Corp Aqueous mixture and silicone oil in water emulsion containing siloxane wetting agents

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3652423A (en) * 1969-10-01 1972-03-28 Eugene C Roberts Humidifier preparatory solution of formaldehyde, polyoxypropylene glycol-ethylene oxide condensation product and water and method of use
US3962119A (en) * 1971-08-06 1976-06-08 Drew Chemical Corporation Non-foaming dispersing composition
US4010110A (en) * 1971-08-06 1977-03-01 Drew Chemical Corporation Process for dispersing contaminants in circulating water or polar organic liquid system
US4127494A (en) * 1977-02-28 1978-11-28 Nalco Chemical Company Polyether polyamines having inverse water solubility as stream generation aids
US5707553A (en) * 1994-02-25 1998-01-13 Sawyer; Melvyn Lloyd Anti-corrosion, quick drying distilled water solution for autoclave sterilizers

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Publication number Publication date
BE711657A (is") 1968-07-15
GB1203497A (en) 1970-08-26

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