KR101294303B1 - Semi-aqueous cleaning composition - Google Patents

Abstract

The present invention relates to a compliance-based detergent composition, in particular, the compliance-based detergent composition of the present invention is characterized in that it comprises a corrosion inhibitor. According to the present invention, oils, fats, machine oils, cutting oils, grease oils, liquid crystal contamination, which are attached to the surface of metal parts, nonmetal parts, electronic parts, glass, lenses, etc. without using a pron solvent or a chlorine solvent, Not only does it have excellent performance in removing oily contaminants such as rosin-type fluxes, it does not cause corrosion of metal parts, and has excellent penetrating power in micropores or gaps of the object to be cleaned, stable for long-term storage, and high flash point. .

Compliance system cleaner, corrosion inhibitor, metal corrosion

Description

Semi-aqueous cleaning composition

The present invention relates to a compliant detergent composition, and more particularly, oil, fat, adhered to the surface of the article, such as metal parts, non-metal parts, electronic parts, glass, lenses without using a pron solvent or chlorine solvent, It has excellent performance in removing oily contaminants such as machine oil, cutting oil, grease oil, liquid crystal contamination, rosin type flux, etc., but does not cause corrosion of metal parts. The present invention relates to a semi-clean detergent composition which is stable in storage and has a high flash point.

Conventionally, when removing contaminants composed of organic degreasing, precision processing, micro-structured structures, organic matter, inorganic matter, etc. present in micro crevices, various types of pron-based or chlorine-based solvents having excellent wettability, permeability, and solubility to contaminants are removed. Widely used in industry.

In some cases, alcohols such as ethyl alcohol or isopropyl alcohol, hydrocarbon-based organic solvents such as limonene or liquid paraffin, alkaline water-based cleaners, etc. have been used. Detergents and the like have been used.

However, among the above solvent-based cleaners, a pron-based solvent and a chlorine-based solvent have excellent characteristics as a cleaner, but because they may cause environmental pollution such as destroying the ozone layer in the air and accumulating in the environment, which may adversely affect the global ecosystem. According to the Montreal Protocol Convention of 1987, their use has been fully regulated since 1996 in developing countries, and developing countries have been classified as banned items since 2010.

In addition, only alcohols or hydrocarbon-based organic solvents among the above solvents have flammability and human toxicity problems. Therefore, special devices such as explosion-proof equipment are required for use.In case of alkaline water-based cleaners, the removal power of oil pollution is low, In the case of this metal, it affects the material change such as metal surface corrosion and is currently used only for limited purposes.

In addition, in the case of the semi-conductor-based cleaner mainly composed of nonionic surfactants, there was a problem of causing corrosion of metal parts by the catalyst contained in the surfactant.

In order to solve the problems of the prior art as described above, the present invention is oil, fat, machine oil that is attached to the surface of the article, such as metal parts, non-metal parts, electronic parts, glass, lens without using a pron solvent or chlorine solvent It is an object of the present invention to provide a compliant detergent composition having excellent performance in removing oily contaminants such as cutting oil, grease oil, liquid crystal contamination, rosin type flux, etc., but not causing corrosion of metal parts.

Another object of the present invention is to provide a semi-permeable cleaning composition having excellent penetrating power in micropores or crevices of the object to be cleaned, stable for long term storage, and having a high flash point.

In order to achieve the above object, the present invention provides a compliant cleaner composition comprising a corrosion inhibitor in the compliant cleaner composition.

The corrosion inhibitor is preferably included in 0.1 to 5% by weight in the compliance system cleaning composition.

The corrosion inhibitor is preferably used an amine compound, quaternary ammonium compound or a mixture thereof.

Hereinafter, the present invention will be described in detail.

The compliant detergent composition of the present invention is characterized by including a corrosion inhibitor.

The corrosion inhibitor may be used alone or in combination of two or more of the amine compound or the quaternary ammonium compound represented by the following formula (1).

[Formula 1]

In the formula (1)

Each X is independently Na, K, or Li,

m and n are each independently an integer of 1-20.

Specifically, the amine compound may be ethanolamine, diethanolamine, triethanolamine, dimethylethanolamine, methyl diethanolamine or butyl monoethanolamine.

The corrosion inhibitor is preferably included in 0.1 to 5% by weight in the compliance system cleaning composition. If the content is less than 0.1% by weight, there is a problem that there is no corrosion protection ability, if the content exceeds 5% by weight there is no further improvement in performance is economically disadvantageous.

The compliance-based detergent composition of the present invention comprising the above corrosion inhibitor preferably includes a nonionic surfactant, a water-soluble solvent, water and a hydrocarbon-based oil.

The nonionic surfactant functions to effectively remove oily contaminants adhering to various article surfaces and at the same time exhibit excellent stability during long-term storage.

The nonionic surfactant may be polyoxy alkylene alkyl phenyl ether, polyoxy alkylene alkyl ether, polyoxy ethylene polyoxy propylene block polymer, polyethylene glycol fatty acid ester or polyoxy ethylene sorbitan fatty acid ester, and the like. It is preferable to use polyoxy alkylene alkyl phenyl ethers represented by the formula (2) or polyoxy alkylene alkyl ethers represented by the following formula (3).

[Formula 2]

C _m H _{2m + 1} C ₆ H ₅ -O- (CH ₂ CH ₂ O) _n -H

(3)

C _m H _{2m + 1} -O- (CH ₂ CH ₂ O) _n -H

In Formula 2 and Formula 3,

m is an integer from 5 to 21,

n is an integer of 1 to 10;

Specifically, the compound represented by Formula 2 includes polyoxy ethylene hexa phenyl ether, polyoxy ethylene hepta phenyl ether, polyoxy ethylene octyl phenyl ether, polyoxy ethylene nonyl phenyl ether or polyoxy ethylene lauryl phenyl ether, and the like. The compound represented by Formula 3 includes polyoxy ethylene dodecanyl ether, polyoxy ethylene tetra decanyl ether, polyoxy ethylene hexa decanyl or polyoxy ethylene hepta decanyl ether.

The nonionic surfactant is preferably included in 10 to 30% by weight in the compliant detergent composition. If the content is less than 10% by weight, there is a problem that the ability to remove oily contaminants is insignificant, and when the content exceeds 30% by weight, it is difficult to maintain a uniform phase of the cleaning agent.

The water-soluble solvent serves to effectively remove oily contaminants adhering to various article surfaces and to exhibit excellent stability during long-term storage.

Alcohols, glycols or glycol ethers may be used as the water-soluble solvent, and it is particularly preferable to use glycol ethers represented by the following general formula (4) or (5).

[Formula 4]

C ₆ H ₅ -CH ₂ O- (CH ₂ CH ₂ O) _m -H

[Chemical Formula 5]

RO- (CH ₂ CH ₂ O) _m -H

In the formulas (4) and (5),

m is an integer of 1 to 5,

R is alkyl having 1 to 4 carbons.

Specifically, the glycol ethers represented by Formula 3 or Formula 4 include mono ethylene glycol mono benzyl ether, diethylene glycol mono benzyl ether, triethylene glycol mono benzyl ether, tetra ethylene glycol mono benzyl ether, penta ethylene glycol mono benzyl ether , Diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, tetraethylene glycol monomethyl ether, diethylene glycol monoethyl ether, triethylene glycol monoethyl ether, tetraethylene glycol monoethyl ether, diethylene glycol monopropyl ether, Triethylene glycol monopropyl ether, tetraethylene glycol monopropyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether or tetraethylene glycol monobutyl ether, etc. It can be used.

The water-soluble solvent is preferably contained in 5 to 30% by weight in the compliance-based detergent composition. If the content is less than 5% by weight, there is a problem that the cleaning performance may be lowered. If the content is more than 30% by weight, it is difficult to maintain a uniform phase of the cleaner.

The water serves to increase the flash point of the hydrocarbons which occupy the continuous phase of the microemulsion of the detergent.

The water is preferably included in the compliant detergent composition 0.5 to 20% by weight. If the content is less than 0.5% by weight, there is a problem that there is no ability to lower the flash point of the hydrocarbon used in the cleaning composition, and when the content exceeds 20% by weight, it is difficult to maintain the uniformity of the cleaning agent.

The hydrocarbon-based oil is a composition that occupies the continuous phase of the microemulsion and serves to remove oily contaminants and to improve microgap penetration.

As the hydrocarbon oil, an olefin hydrocarbon, a paraffin hydrocarbon or an aromatic hydrocarbon having a boiling point of 30 to 300 ° C. may be used, and in particular, olefin, isoparaffin or n-paraffin is preferably used. If the boiling point of the hydrocarbon-based oil is less than 30 ℃ has a problem that it is difficult to maintain the long-term phase stability of the water-soluble solvent, if it exceeds 300 ℃ there is a problem that the cleaning performance may be reduced.

The hydrocarbon-based oil is preferably included in 30 to 80% by weight in the compliant detergent composition. If the content is less than 30% by weight, the cleaning performance is insignificant, and there is a problem in that the micro-gap penetration is weak, and when the content exceeds 80% by weight, the cleaning performance may be deteriorated.

The compliant detergent composition of the present invention may be prepared by uniformly mixing the above components, and the compliant detergent composition of the present invention comprising a nonionic surfactant, a water-soluble solvent, water, a hydrocarbon-based oil, and a corrosion inhibitor may contain the respective components. Although it may be mixed in any order, it is particularly preferable to prepare a homogeneous liquid by mixing components other than water first and then adding a small amount of water. The compliant composition according to the present invention prepared as described above has a form of a micro emulsion in the form of W / O, and has excellent performance in removing oily contaminants attached to the surface of an article without using a pron solvent or a chlorine solvent. It does not cause corrosion of metal parts, but also has excellent penetrating power in micropores or gaps of the object to be cleaned, stable for long term storage, and has a high flash point.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the scope of the present invention is not limited to the following examples.

Example 1

20 parts by weight of polyoxy ethylene dodecyl ether EO 5 addition molar (LA-5) as a nonionic surfactant, 15 parts by weight of mono ethylene glycol mono butyl ether (butyl-cellesolve) as a water-soluble solvent, 2 parts by weight of triethanol amine as a corrosion inhibitor , Dodecene (C ₁₂ -olefine) was added to 100 parts by weight of water and 8 parts by weight of water and a hydrocarbon-based oil, and stirred until a clear liquid at room temperature to prepare a compliance-based cleaner.

Examples 2-20 and Comparative Examples 1-3

The same procedure as in Example 1 was carried out except that the components used in Example 1 were used in the compositions shown in Table 1 below.

The unit in Table 1 is parts by weight.

division Nonionic surfactant Water soluble solvent Corrosion inhibitor water
Hydrocarbon oil LA-5 LA-4 Butyl cellosolve Triethanolamine Dehyquart SP C12-olefin






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One 20 - 15 2 - 8 Up to 100 parts by weight 2 20 - 15 2 One 8 Up to 100 parts by weight 3 20 - 15 One 2 10 Up to 100 parts by weight 4 25 - 15 - 2 10 Up to 100 parts by weight 5 25 - 10 One - 10 Up to 100 parts by weight 6 15 - 10 - One 10 Up to 100 parts by weight 7 - 20 15 One 2 8 Up to 100 parts by weight 8 - 20 15 - 2 8 Up to 100 parts by weight 9 - 25 15 2 - 10 Up to 100 parts by weight 10 - 25 15 3 - 10 Up to 100 parts by weight 11 20 - 10 One 2 10 Up to 100 parts by weight 12 20 - 10 - 2 10 Up to 100 parts by weight 13 10 - 25 - 3 10 Up to 100 parts by weight 14 10 - 25 2 One 10 Up to 100 parts by weight 15 - 10 25 3 - 10 Up to 100 parts by weight 16 - 10 25 - 2 10 Up to 100 parts by weight 17 5 - 20 One - 10 Up to 100 parts by weight 18 - 5 20 - One 10 Up to 100 parts by weight 19 20 - 10 - One - Up to 100 parts by weight 20 25 - 20 One One 25 Up to 100 parts by weight ratio
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Yes One 5 - 20 - - 10 Up to 100 parts by weight 2 15 - 2 - - 10 Up to 100 parts by weight 3 25 - 15 - - 10 Up to 100 parts by weight LA-5: 5 mol of polyoxyethylene dodecyl ether EO
LA-4: 4 moles of polyoxy ethylene dodecyl ether EO
Butyl-cellussolve: mono ethylene glycol mono butyl ether
C12-olefin: dodecyl
Dehyquart SP: Quaternary ammonium compound (trade name: Cognis)

By using the cleaning composition prepared in Examples 1 to 20 and Comparative Examples 1 to 3, the cleaning rate, time required for washing more than 95%, solubilizing power (solubilization amount and time) of soil, phase stability , Flammability and corrosion was measured, and the results are shown in Table 2 below.

end. Cleaning rate-After injecting contaminants (liquid crystal) into a glass plate having a micro-gap of 2 μm, the stock solution of the cleaning composition prepared in Examples 1 to 20 and Comparative Examples 1 to 3 was added thereto at room temperature and sonicated for 5 minutes. It was. After the ultrasonic treatment, the liquid crystal contaminants remaining in the microgap were visually observed using a polarizing microscope. At this time, the area where the liquid crystal contaminants remain in the total area of the microgap was converted into a washing rate. That is, if there is no liquid crystal, the cleaning rate is expressed as 100%, and if the liquid crystal remains in 50% of the total microgap area, the cleaning rate is expressed as 50%.

I. Time required for washing more than 95%-The same as the above washing rate test, but the sound wave washing was performed until the removal of the liquid crystal contaminants remaining in the micro-gap is 100%. If contaminants remain even after 10 minutes of the ultrasonic cleaning time, “-” is indicated.

All. Solubility of contaminants (amount and time of solubilization)-Contaminants (liquid crystals) were gradually added to the suspension phase while stirring each 100 g of the cleaning composition stock solutions prepared in Examples 1 to 20 and Comparative Examples 1 to 3, respectively. Solubilization amount was assessed by measuring the amount of contaminants introduced until conversion. In addition, the solubilization time was further added 30 g of contaminants while stirring each 100 g of the cleaning composition stock solutions prepared in Examples 1 to 20 and Comparative Examples 1 to 3, and continued stirring until the entire cleaning solution became clear. Measured by time.

All. Phase stability-After leaving the stock solution of the cleaning composition prepared in Examples 1 to 20 and Comparative Examples 1 to 3 for 1 week in an oven at 50 ° C. and a frozen state at −15 ° C., the phase separation of the cleaning solution was visually observed. Evaluated. At this time, the evaluation criteria were expressed as "defect" if the detergent stock solution phase separated after one week, "good" if there is no phase abnormality.

la. Flammability-It was measured using the Cleveland open cup test method. In Table 2 below, “<” means the maximum measured value.

hemp. Corrosion-prevention-The LCD substrate was placed in the composition stock solution for 6 hours while the stock solution of the cleaning composition prepared in Examples 1 to 20 and Comparative Examples 1 to 3 was maintained at 60 ° C. Then, the LCD substrate was washed with distilled water and dried, and then observed for corrosion under a microscope.

division Washing rate
(%) Time required to clean more than 95% (sec) Pollutant Availability Phase stability Ignition Corrosion Amount (g) Time (sec) 50 ℃ -15 ℃






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One > 95 <30 35.7 <20 Good Good none none 2 > 95 <30 35.7 <20 Good Good none none 3 > 95 <30 35.7 <20 Good Good none none 4 > 95 <30 42.3 <20 Good Good none none 5 > 95 <30 40.9 <20 Good Good none none 6 > 95 <30 34.8 <20 Good Good none none 7 > 95 <30 36.8 <20 Good Good none none 8 > 95 <30 36.8 <20 Good Good none none 9 > 95 <30 41.9 <20 Good Good none none 10 > 95 <30 41.9 <20 Good Good none none 11 > 95 <30 34.8 <20 Good Good none none 12 > 95 <30 34.8 <20 Good Good none none 13 > 95 <30 31.5 <20 Good Good none none 14 > 95 <30 31.5 <20 Good Good none none 15 > 95 <30 31.1 <20 Good Good none none 16 > 95 <30 31.1 <20 Good Good none none 17 <60 - 19.3 52 Good Good none none 18 <60 - 19.3 52 Good Good none none 19 > 95 <30 35.3 <20 Good Good none none 20 > 95 <30 42.9 <20 Bad Bad has exist none ratio
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Yes One <60 - 19.3 52 Good Good none Occur 2 <60 - 21.5 52 Good Good none Occur 3 > 95 <30 42.8 <20 Good Good none Occur

As shown in Table 2, in Examples 1 to 20 including a corrosion inhibitor, it was confirmed that the corrosion did not occur as compared with Comparative Examples 1 to 3 without using the corrosion inhibitor. In particular, according to the present invention, the formulation comprises 10 to 30% by weight of nonionic surfactant, 5 to 30% by weight of water-soluble solvent, 0.5 to 20% by weight of water, 30 to 80% by weight of hydrocarbon oil and 0.1 to 5% by weight of corrosion inhibitor. In the case of Examples 1 to 16, compared to Examples 17 to 20 used outside of the content range, it was confirmed that the cleaning rate, the time required for washing more than 95%, contaminant solubility, phase stability, and flammability were significantly better. there was.

As described above, although the present invention has been described by means of a limited embodiment, the present invention is not limited thereto and will be described below by the person skilled in the art and the technical spirit of the present invention. Of course, various modifications and variations are possible within the scope of the claims.

According to the present invention, oil, fat, machine oil, cutting oil, grease oil, liquid crystal contamination, rosin adhered to the surface of metal parts, nonmetal parts, electronic parts, glass, lens, etc. without using a pron solvent or a chlorine solvent. Not only does it have excellent performance in removing oily contaminants such as type fluxes, it does not cause corrosion of metal parts, and has excellent penetration into micropores or crevices of the object to be cleaned, stable for long term storage, and has a high flash point effect.

Claims (8)

In the compliant detergent composition, Compliance system detergent composition comprising a quaternary ammonium compound represented by the formula (1) as a corrosion inhibitor: [Formula 1]

In the formula (1) Each X is independently Na, K, or Li, m and n are each independently an integer of 1-20. delete The method of claim 1, 10 to 30 weight percent of nonionic surfactant; 5-30 wt% of water-soluble solvents; 0.5 to 20 weight percent water; 30 to 80% by weight of hydrocarbon oil; And Preservative 0.1 to 5 wt% Compliance system cleaning composition comprising a. The method of claim 3, The nonionic surfactant is at least one selected from the group consisting of polyoxy alkylene alkyl phenyl ether, polyoxy alkylene alkyl ether, polyoxy ethylene polyoxy propylene block polymer, polyethylene glycol fatty acid ester and polyoxy ethylene sorbitan fatty acid ester Compliance system cleaning composition, characterized in that. The method of claim 3, The nonionic surfactant is a polyoxy alkylene alkyl phenyl ether represented by the following Chemical Formula 2 or a polyoxy alkylene alkyl ether represented by the following Chemical Formula 3; [Formula 2] C _m H _{2m + 1} C ₆ H ₅ -O- (CH ₂ CH ₂ O) _n -H (3) C _m H _{2m + 1} -O- (CH ₂ CH ₂ O) _n -H In Formula 2 and Formula 3, m is an integer from 5 to 21, n is an integer of 1 to 10; The method of claim 3, The water-soluble solvent is at least one selected from the group consisting of alcohols, glycols and glycol ethers. The method of claim 5, The water-soluble solvent is a glycolic detergent composition, characterized in that the glycol ether represented by the following formula (4) or (5): [Formula 4] C ₆ H ₅ -CH ₂ O- (CH ₂ CH ₂ O) _m -H [Chemical Formula 5] RO- (CH ₂ CH ₂ O) _m -H In the formulas (4) and (5), m is an integer of 1 to 5, R is alkyl having 1 to 4 carbons. The method of claim 3, The hydrocarbon-based oil is at least one selected from the group consisting of olefin hydrocarbons, paraffin hydrocarbons and aromatic hydrocarbons having a boiling point of 30 to 300 ℃.