DE1621651A1 - Aerosol for treating the surfaces, e.g. of OEfen to make them dirt-repellent - Google Patents

Description

September 19, 1966

Joseph George Spitzer, 722 Coue Road East, IYIamaroneck, New York, / USA,

Behard Berkeley, 66 North Drive Valley Stream, New York / USA and

Charles Albert Tucker, 20 Kraft Avenue, Bronxville, Mem York / USA

Aerosol for treating surfaces, e.g. of ovens, to make them stain resistant.

This invention relates to an aerosol composition used in cleaning oven and the like surfaces

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Farntchralbar: OS 4374 patent tf

Language tent

by appointment

Bank account:

Bayar 8taatibank Lindau (B) No. IMS

Poittchack account. MOnohan 2M 2S

and makes them dirt-repellent. The term used here "Dirt" refers to shelves, e.g. B. fat, charred food particles, etc., usually found on oven, and similar surfaces can be found.

The aims and advantages of the invention are presented in part here and are partially apparent therefrom, or can be found out by practicing the invention, die.anhand v / g π as set out in the dependent claims Step, method, compositions, combinations and improvements is realized and achieved.

The invention consists in the novel steps, methods, compositions, Combinations and improvements

The purpose of the invention is as, an aerosol compound for treatment Biner oven or the like. To create surface that effectively removes dirt, including grease and other oily deposits removed and which leaves such a layer on the surface treated in this way, that the surface treated in this way has dirt-repellent properties.

Another purpose of this invention is to create one

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Aerosol connection in the form of a packaging, which has a sof-like Application of an oven-treating compound an oven or the like. Surface in a simpler and safer way Belize, this is an oven-treating compound when applied to the given surface, not only an effective removal of dirty and oily deposits causes, but leaves a layer on the treated surface that is dirt-repellent.

Experience has shown that the tasks of this Invention can be realized by forming an aerosol system that consists of:

1. a liquid hydrophilic phase containing a cleaning agent;

2. a liquid propellant phase, which contains an agent, that is capable of an oven or similar surface to impart dirt-repellent properties; and

3. a surface active gown that is essentially is in the hydrophilic phase.

Choosing the right detergent for the hydrophilic phase is important in achieving the desired end results should be. To obtain adequate cleaning results B. a solution of a strong saponifying agent is required »Experience shows that the alkaline metals

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in their hydroxide drum, i.e. sodium, potassium and lithium hydroxyd are ideal saponifying agents.

Experience showed that dimethylsiloxane polymers with sufficient Viscosity in order to obtain forming properties sit, particularly useful as a means of establishing soil resistance on the treated according to the invention Surfaces are. In general, film-forming dimethylsiloxane polymers have A viscosity of at least 1000 centistokes (unit of measure for the kinematic viscosity no of liquids) at 20 ° C and preferably around 20,000 up to 100,000 centistokes.

The ability of DinjBthyleiloxanpolymare to have a layer Forming low energy has led to a number of useful applications in which the dimethylsiloxane polymer the adhesion between two materials is reduced * In the present case, this is due to the layer formation Oven surfaces on which soiling such. B. Koch » Lard, oil or fat cannot adhere to benefit gs = » power.

The temperatures prevailing in a furnace , which can rise to 315 C, make it essential that any layer with low energy at high temperatures

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temperature relatively non-volatile and stable is,

Eb shows that the effectiveness of the layer is lower Energy is relatively non-volatile and stable at high temperature. '

Experience has shown that the efficacy is a layer with low energy in the reduction of the DladhäsiDn is related to the viscosity of the dimethylsilaxane polymer that in turn, VDm depends on the molecular weight. Therefore own diB used in the present invention dimethylsiloxane polymer one relatively high viscosity.

The application of the Dimethylsiloxanpolymera SBlbat provides not a serious problem and is at θιπβγ range of commercial Cases have been accomplished. The use of such a polymer together with an aqueous, corrosive system, however, poses a stability problem which are not οππβ further obvious until the Uersuch their kambination is undertaken. Contrary to the general view, the dimethyleiloxane polymerB about are chemically stable over a wide pH range, the experience has been made that they are at room temperature in

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-B-

1821651

Connection with caustic alkalis in case of viscosity change, dia occurred in the form of an accompanying phenomenon, the Underwent decay. The actual invention must be in the The presence of alkalis is stable and in the liquid Aarosol compound be soluble.

There are many reasons why a surface active Middle in the product should contain ssin. The agent accelerates the saponification due to its whetting effect; it shapes the removal of the dirt after treatment even more effective; it makes it easier to rinse out sponges, rags, cloths, etc. that are to be wiped away of the treated dirt can be used; it forms foam when touched, which causes it to run off prevents vertical surfaces and enables the consumer to see where the product has been sprayed is.

The tilahl of the surfactant is determined by a Limited number of factors. The surface active Means must, in particular, in dBr presence of detergents Stable in dBr presence of corrosive alkalis be.

For aesthetic and practical green ribs, it is desirable

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worth having the product on BstätigBr, head or button of the Aerasol valve does not form wax foam. This will be on best achieved using the system described herein.

After careful consideration, the experience was made that is the best way to reduce the foam of laughter to a minimum dimension on the valve without somehow with the very coveted features of the product come into conflict because to interfere with it in any way "was to use a surface-active agent that massive foaming and poor foam stability. Another requirement was that the choice of the surface-active particles limited to ain flg which is the silicone oil or preferably an extract the silicone oil of the propellant phase would not dissolve

Examples of surface active flittel containing the uiünschenswartan features already described, Palyoxyprapylenpqlyoxyethylankondensate (Pluronica), the warden formed by attaching ends of a Palyoxyethylangruppen to bBida PolyoxypfopylenkBtte UAE ₈ can be represented by the following simplified formula:

a (C ₃ H ₆ O) b (C ₂ H ^ O) c H.

00S830 / 1740

The preferred surfactant of the above type has a polyoxypropylene (C ₃ HgO) basis weight of 1500 to 1800, while the ethyl monoxide (C ₂ H, 0) fractions make up about £ 10% of the total molecule. One such product is sold under the trade name Pluronic L-64.

Another type of surfactant agent found in The alkylaryl polyethers which can be used in this invention are and modified polyethers (tritones). A An example of a polyether of the type mentioned is isooctylphenyl polyethoxy ethanol (9-10 NaIe of Ethylenaxyds), das is sold under the name Triton X-100. Examples modified polyethers that can be used are those in US patent i \ Ir. 3,079,416 compounds disclosed with the formula:

R ₂ C WH (C ₂ H ₄ OJmSD ₃ Wa;

in which R ₁ , R ₂ and R _{3 are} alkyl groups with a total gas amount of 11 to 1 carbon atoms and m has a value of 12.5 to 17.5.

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-B-

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An example of a connection of this type is the Triton QS-15. Another example of a modified polyether is the changed anianische Polyethaxyl- aberflächenakti \ / _e} agent sold under the üJarennamen "Triton CF-76."

Another class of surfactants which can be used in the present invention are the fatty acid amides (ninols) such as e.g. B ₀ the fatty acid alkanolamides, one example of which is l \ linol 1301, which is a diethan-lamide derived from coconut butter (cobra oil).

Another class of surfactant that is related are the alkaline metal salts of the fatty sarcosinates (maprosyls). An example of a bond of this type is (\ latrium lauroyl sarcosinate, which under the üJarennamen "Maprosyl 30" is sold.

As mentioned earlier herein, the links are these Invention for cleaning and training van debris removal used on ovens and similar surfaces and diBS in particular on iron, steel, copper and other metal surfaces (except aluminum) and surfaces that are exposed to vitreous porcelain or other fired and / or alkali-resistant Surfaces are coated.

BATH

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The aerosal compounds of this invention can be used in any of conventional pressure dispensing containers be included, who has the usual AerDsaldispensisrvBntil, which the Outflow controlled by a discharge line leading to the bottom of the container. The propellant of the aerosol compound has a pressure at room temperature that is within the safety limits for the container and that "Bine l / grant of the contents of the container for use in farm of foam on the glass or other surface causes. Sd that the propellant phase together with the hydrophilic phase can be distributed, uiird the Shake the contents before actuating the valve.

In general, the propellant has a pressure in the range of 1.05 to 5.25 atmospheres, preferably 1.75 to 45 2 atmospheres, at room temperature. Of course, the internal pressures mentioned are not limiting with regard to the application of the product, but only represent preferred suitable values. Real restrictions relate to the size and strength of the container actually used and also to existing encoding regulations. Of course, the propellant should be such that it does not react with cleaning agents and / or the dirt removal agent in order to render the propellant ineffective,

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The propellant according to the invention is preferably not combustible type, so the furnace-treating compound Can be sprayed onto a stovetop that is raised to the top Temperatures, uiie z. B. 65 C to 93 C heated morden. By using the oven-treating compound " on a heated surface, the time required for cleaning is reduced compared to when it is on the surface is sprayed at room temperature or low temperature. If the furnace surface z. EB. to 93- C heated, the oven can be cleaned with a suitable wet sponge, rag, cloth, etc. in as little as 5 minutes Application of Oven Treating Compound for Removal of the oven dirt to be wiped off »

When the oven treating compound is applied to an oven surface that has been heated, it preferably contains a relatively high boiling point solvent that can dissolve alkalis to keep the applied compound in a removable liquid state so that the dfenech dirt is readily removed can be wiped off. The compounds useful for this purpose are alkylene glycols, especially ethylene and propylene glycol having 2 to 20 carbon atoms and glycol ethers having k to 20 carbon atoms. Examples of compounds of this type are propylene glycol, ethylene glycol, butylene glycol

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, Diethylene glycol, monoethyl ether, etc.

Examples of suitable propellants which are non-flammable and which can be used in accordance with this invention are a combination of the generally applied Aerosol fluorochlorocarbon propellants that get homely under the names "Freone", "Genetrone" and "Isotrons" are sold. Specific examples of such Compound is dichlorodifluoromethane (Freon 12), tetrafluoride dichloroethane (Freon 11 ^), pentafluormanochloroethane (Freon 115), trifluorotrichloroethane (Freon 113), cyclic Hexafluorodichlorobutane (Freon C 316), octafluoropropane (Freon 218) and cyclic dktafluorobutane (Frean C 318).

TrDtz of a preferred embodiment includes the present invention in its scope the use of propellants that are flammable or combustible, such as B. Hydrocarbon propellants in the form of propane, Butane, pentane, isobutane, hexane, heptane, dktane, ftlonan and Dean. üJenn aerosol compounds with a flammable If the propellant is used, the pilot light, if the stove has one, should be used prior to application Dfen treatment connection are turned off. Besides that Care should be taken that the oven temperature not so high as to burn the flammable

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To cause propellant.

In the discussion that follows, references to % by weight refer to % by weight of the total aerosal compound. In general, the detergent is such. B. Caustic soda from 1 to 10 % by weight and preferably from 2 to k % by weight . The stain resistant agent DimethylsiloxanpDlymer is generally present in an amount van 0.5 to 10 wt -.%, And preferably represent 1 to 3 wt .- ^. In general, the amount of surfactant is from 0.2 to 10% by weight and preferably from 2 to k% of the total compound. The dragging agent is generally present in an amount from k to 12 Geu.-Ji and preferably from 7 to 9 Geu _e -%. The main constituent of the aerosol compound is water / i generally in an amount van i + 0 to 90 wt -%, and is represented vofzugsweise 55 to 75 wt .-%.. When a solvent having a relatively high boiling point (such as glycol and glycal ether) is used, its content is generally 10 to 25% by weight, and preferably 15 to 25% by weight.

If necessary, additional surcharges can be made, the paBsenderweiBB when aarosol compound are used, included therein be. For example, anti-corrosion agents can be used such as B. ftlitramethane, l \ latriumbsnzoat, ^ -Msthyl-S-Butyn-

009830/1740 bad or

2-οί be included, which is generally in an amount of 0.1 to 2 EeLd. -% and preferably 0.3 to 1.5 Geui .-% are represented. In addition, an alkali-resistant perfume can optionally be included in the formula in an amount of 1 Geu.-JO.

In order to illustrate the invention even further, the following examples of an aerasol sleeve produced according to the invention will now be given. In the examples, the propellant used is a 50:50 mixture of dichlorodifluoromethane and tetrafluorodichlorethane. In addition, the parts of the indicated components in the examples are by weight. The term "it" refers to Csntistokes at 2D ⁰ C.

Example I.

Part A - Concentrate G Building Parts

Water "75.5 caustic soda 1

Propylene Glycol 20 Triton -X-IOG 3.5

■ ■ - ORIGINAL BATHROOM

7 40

Part B - AErosDl formula Non-conforming parts

Concentrate propellant Dimethylsilaxanepalymer Viscosity 100,000 es 95.5

0.5

Example 2

Part A concentrate

ülasser
Caustic Soda PrDpylBnglycol Triton X-100 73.5

3
20th

3.5

Part B - Aerosol Formula

Concentrate propellant Dimsthylsilaxane polymeric oil 60 000 it

90
8th

2.0

BATH ORIGINAL

example

Part A - concentrate parts

Water Caustic Potash Prapylene GlycDl Triton X-100 72.5

20 3.5

Part B - Aerosol Sleeves

Concentrate propellant dimethylsiloxane polymer viscosity 1DOG es 84 12

example

Part A - concentrate

LJ a s s e r caustic soda Propylene Glycol Plurpnic L-6i *

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50 0.2

IAD ORlGlHAL

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Part B - Aerosol sleeve test part B.

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Concentrate 89

Propellant 12

Dimethylsiloxane polymer viscosity

12,500 it 3

Example 5

Part A - concentrate

Water 70

Caustic soda 10

Propylene glycol 10

L-64 10

Part B - Aerosol Formula

Concentrate 84

Propellant k

Dimethylsiloxane polymeric acidity

60,000 approx 8

Example 6

Part A - concentrate food parts

water
caustic soda

"Butylene glycol

Maprosyl 3D

76 5 3 20th α, 5

Part B - Aerosol Farms

Concentrate 82

Propellant. 8th

Dimethylsilaxane polymer oil viscosity

1 QOD es 10

Example 7

Part A - concentrate

Water 76

Caustic soda 3

Calla volley 20

Triton AS-15 1

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Part B - Aerosalfarmel

Example B.

Part A - Chancellery Council

Components

concentrate 90 Propellant 8th Dimethylsiloxane polymer viscosity IDD DDG it 2

water
caustic soda
Butyl CarbitDl
Triton CF-76

76 3

20 1

Part B - AerasDlfarmel

Legal advice
Propellant

Dimetal / silaxane polymer viscosity 12.5OD it

90 B

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Example 9

Part A concentrate. VerifichtstBilB

Water 76

Caustic soda 3

Hexylene glycol 20

ftlinol 1301 1

Part B - Aeroso! Formula

Concentrate ■ ._ 90

Propellant 8

DimethylsilDxanpalymer-UiskDsität

1 000 it 2

Example 10

Part A - concentrate

Water 7 6

Caustic soda. k

Butylene glycol 10

Pluronic L-64. 10

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. -21 - - - ■ · l ^m

Tsil B - aerosol formula GsujichtstBilB

Concentrate propellant dimethylsiloxane palymar viscosity 12.5OQ es 82 8

10

example

Part A - concentrate

LJassBT Caustic Soda Propylene Glycol Pluronic L-6i). 73.5

3.5

Part- B - ABrasol formal

Concentration Propellant OimBthylsilaxanpalymBr-Üiakoaität 60,000 ce

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The invention in its broader aspects is not limited to the specific steps, methods, compositions, Combinations and improvements are limited but can be within the scope deviations from the attached claims are made, suspect that from the ideas of the invention under sacrifice its main advantages must be deviated from.

Claims

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Claims (1)

~ 23 - Claims 1. Aerosol compound for treating furnace and the like Surfaces for the purpose of cleaning and to achieve dirt-repellent Features characterized by: 1.) a liquid hydrophilic phase with a cleaning agent, 2.) a liquid propellant phase with an agent that gives dirt-repellent properties to an oven surface or the like and
3.) a surfactant. 2. Aerosol compound according to claim 1, characterized indicated that the detergent is a caustic alkali. 3. Aeroaol compound according to claim 1, characterized in that the cleaning agent Caustic soda is. k. Aerosol compound according to claim 1, characterized in that the agent for imparting dirt-resistant characteristics is a dimethylsiloxane polymer. - 2U - 009830/1740 621651 5 "Aerosol compound according to claim 1, characterized g β k β π π ζ B i c h η β t that the surface active / s Means from the group consisting of polyoxypropylene-poly-DxyäthylenkondßnsatBn, Alkylaryl polyethers and dsrsn modified Derivatives; fatty acid amides and alkaline metal salts of the fatty sarcosinates. 6. Aerosol compound according to claim 1, characterized in that the surface-active agent is a PolyaxyprapylEn-PolyaxyäthylBnkondensat _o 7. aerosol binding according to claim 1, characterized by a solvent with a relatively high boiling point, which is the detergent can dissolve. 8. aerosol compound according to claim 1 _? characterized in that the solvent is selected from the group consisting of alkylene glycols with 2 to 20 carbon atoms and glycol ethers with 4 to 2D carbon atoms. 9 "Aerosol compound for the treatment of oven flasks like that -zhi @ cks cleaning of the same and application of dirt" resistant fierkmalen denoted by _. 25 _ _ ■ - ORIGINAL 009830/1740. 1.) an aqueous phase that contains caustic soda, 2.) a liquid propellant phase which is a dimethylsiloxane polymer with a viscosity of at least 1 ODO it contains up to 20 ° G and 3 «) Bin alkali-resistant BS surface-active agent that is used in the liquid of the compound is soluble » 10. Aerosal compound according to claim 9, characterized characterized that the surface-active Agents selected from the group consisting of polyoxypropylene-polyoxyethylene condensates; ,, AlkylarylpclyäthBrn and their modified derivatives, fatty acid amides and alkaline Metal salts of fatty sacosinates is chosen 11. AercBolverbindungen according to claim 9, characterized by a solvent with binem relatively high kachpunkt, 'that in the watery Caustic soda solution is soluble. 12. Aarosolverbindung according to claim 11, characterized in that the solvent DASB atoms from the group beatehsnd from Älkylenglykalen BIIT 2 to 20 carbon and is selected with Glykaläthsfri * t ble 20 Kohlsnataff "· atoms * 21 <· 13. Asrosalvsrbverbindungen for treating van surfaces and the like for the purpose of their cleaning, marked by a liquid phase of a solution of caustic soda, a dimethylsiloxane polymer with a viscosity of 20 QOQ to 100 QQQ it at 20 ⁰ GV a PolyoxypropylBn-Polyoxyäthylan surface active / s agent and a Alkylanglycol solvent. 3AD Oa ¹ GiN