CN111278962A - Cleaning composition for cleaning glass article and method for cleaning glass substrate using the same - Google Patents

Cleaning composition for cleaning glass article and method for cleaning glass substrate using the same Download PDF

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CN111278962A
CN111278962A CN201880062884.XA CN201880062884A CN111278962A CN 111278962 A CN111278962 A CN 111278962A CN 201880062884 A CN201880062884 A CN 201880062884A CN 111278962 A CN111278962 A CN 111278962A
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cleaning composition
range
cleaning
formula
eos
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Inventor
钟穆哈
朴俊昱
申元国
宋小俊
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AK Chemtech Co Ltd
Corning Inc
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AK Chemtech Co Ltd
Corning Inc
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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
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    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3746Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3753Polyvinylalcohol; Ethers or esters thereof
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/02Surface treatment of glass, not in the form of fibres or filaments, by coating with glass
    • C03C17/04Surface treatment of glass, not in the form of fibres or filaments, by coating with glass by fritting glass powder
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/0075Cleaning of glass
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005Other compounding ingredients characterised by their effect
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    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/042Acids
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    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/044Hydroxides or bases
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    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/06Phosphates, including polyphosphates
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    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/08Silicates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/10Carbonates ; Bicarbonates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2003Alcohols; Phenols
    • C11D3/2065Polyhydric alcohols
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2075Carboxylic acids-salts thereof
    • C11D3/2079Monocarboxylic acids-salts thereof
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2075Carboxylic acids-salts thereof
    • C11D3/2082Polycarboxylic acids-salts thereof
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2075Carboxylic acids-salts thereof
    • C11D3/2086Hydroxy carboxylic acids-salts thereof
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/26Organic compounds containing nitrogen
    • C11D3/28Heterocyclic compounds containing nitrogen in the ring
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/26Organic compounds containing nitrogen
    • C11D3/30Amines; Substituted amines ; Quaternized amines
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/26Organic compounds containing nitrogen
    • C11D3/33Amino carboxylic acids
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3746Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/43Solvents
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02041Cleaning
    • H01L21/02043Cleaning before device manufacture, i.e. Begin-Of-Line process
    • H01L21/02052Wet cleaning only
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00Methods for coating glass
    • C03C2218/10Deposition methods
    • C03C2218/11Deposition methods from solutions or suspensions
    • C03C2218/116Deposition methods from solutions or suspensions by spin-coating, centrifugation
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00Methods for coating glass
    • C03C2218/30Aspects of methods for coating glass not covered above
    • C03C2218/32After-treatment
    • C03C2218/328Partly or completely removing a coating
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10Objects to be cleaned
    • C11D2111/14Hard surfaces
    • C11D2111/18Glass; Plastics

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  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Detergent Compositions (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

The invention provides a cleaning composition for cleaning glass products anda method for cleaning a glass substrate using the same. The cleaning composition comprises, relative to 100 wt% of the cleaning composition: a base in the range of about 1 wt% to about 20 wt%; a surfactant in the range of about 0.1 wt% to about 10 wt%; a chelating agent in the range of about 0.1 wt% to about 10 wt%; an organic solvent in the range of about 0.1 wt% to about 10 wt%; and a dispersion stabilizer in the range of about 0.1 wt% to about 10 wt%, wherein the dispersion stabilizer has the structure of the following formula (1). The cleaning composition can effectively remove particle contamination and organic contamination on the surface of the glass substrate.
Figure DDA0002427592440000011

Description

Cleaning composition for cleaning glass article and method for cleaning glass substrate using the same
Technical Field
This application claims the benefit of priority from korean application No. 10-2017-0109487, filed on 29/8/2017 under patent laws, and is in accordance with the contents of that application and is incorporated herein by reference in its entirety.
One or more embodiments relate to a cleaning composition for cleaning a glass article and a method of cleaning a glass substrate using the same, and more particularly, to a cleaning composition for cleaning a glass article and a method of cleaning a glass substrate using the same, which can effectively remove particle contamination and organic contamination of a glass substrate
Background
Various cleaning methods including physical methods and chemical methods have been used to manufacture glass substrates used in flat panel displays and the like. There is still a need for cleaning compositions with further improved cleaning capabilities to remove particulate contamination and organic contaminants on the surface of glass substrates.
Disclosure of Invention
One or more embodiments include a cleaning composition for cleaning a glass article and a method of cleaning a glass substrate using the same, which can effectively remove particle contamination and organic contaminants on the surface of the glass substrate.
Additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the presented embodiments.
According to one or more aspects, a cleaning composition for cleaning a glass article, the cleaning composition comprising, relative to 100 wt% of the cleaning composition: a base in the range of about 1 wt% to about 20 wt%; a surfactant in the range of about 0.1 wt% to about 10 wt%; a chelating agent in the range of about 0.1 wt% to about 10 wt%; an organic solvent in the range of about 0.1 wt% to about 10 wt%; and a dispersion stabilizer in the range of about 0.1 wt% to about 10 wt%, wherein the dispersion stabilizer has the structure of the following formula (1).
< formula (1) >
Figure BDA0002427592420000021
Wherein "n" is an integer of 10 to 5,000 and "M" is+"is a cation of an alkali metal or alkaline earth metal, and" RIs "OOr COO
In some embodiments, the cleaning composition may include, relative to 100 wt% of the cleaning composition: a base in the range of about 5 wt% to about 20 wt%; a surfactant in the range of about 2 wt% to about 5 wt%; a chelating agent in the range of about 3 wt% to about 8 wt%; an organic solvent in the range of about 3 wt% to about 8 wt%; and a dispersion stabilizer in the range of about 0.1 wt% to about 3 wt%.
In this case, the dispersion stabilizer may have a structure represented by the following formula (1-1).
< formula (1-1) >
Figure BDA0002427592420000022
Wherein "n" is an integer of 50 to 1,000, and "M" is sodium or potassium.
In addition, the surfactant may include at least one selected from the group consisting of polyoxyalkylene alkylphenol ethers (polyoxyalkylenealkylphenol ethers), polyoxyalkylene aryl phenol ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene alkylamines, sorbitan fatty acid esters, polyalkyl glycosides, alkanolamines, and aralkanolamines.
In some embodiments, the surfactant can have the structure of formula (2) below.
< formula (2) >
CS-(EOS)a-(POS)b
Wherein the chain segment represented by "CS" is straight chain hydrocarbon having 10 to 14 carbon atoms, the chain segment represented by "EOS" is ethylene oxide, the chain segment represented by "POS" is propylene oxide, the EOS and the POS form blocks or are mutually alternated, and a: b is 7:3 to 9.5: 0.5.
In particular, the segment represented by CS may be a straight-chain hydrocarbon having 12 carbon atoms, and a: b may be 8.5:1.5 to 9.3: 0.7.
In addition, the base may include one or more selected from sodium hydroxide (NaOH), potassium hydroxide (KOH), magnesium hydroxide (Mg (OH)2) Calcium hydroxide (Ca (OH)2) Ammonia (NH)3) At least one selected from the group consisting of tetraethylammonium hydroxide, tetramethylammonium hydroxide, aminoethoxyethanol, triethanolamine, diethanolamine, monoethanolamine, ammonium hydroxide, tetrapropylammonium hydroxide, butylammonium hydroxide and choline hydroxide.
The chelating agent may include: at least one selected from the group consisting of potassium pyrophosphate, calcium carbonate, sodium silicate, sodium gluconate, citric acid, salicylic acid, malonic acid, succinic acid, glutaric acid, pyrophosphoric acid, polyphosphoric acid, benzotriazole, sorbitol, glucose, carboxybenzotriazole, and tolyltriazole. In some embodiments, the chelating agent may comprise: nitro-2, 2', 2 "-triacetic acid (NTA), diethylenetriaminepentaacetic acid (DTPA), ethylenediaminetetraacetic acid (EDTA), or metal salts of the foregoing, and the metal salts may include potassium or sodium salts. At this time, the chelating agent may include a metal salt of NTA in a range of about 2 wt% to about 7 wt% and a metal salt of DTPA in a range of about 1 wt% to about 6 wt% with respect to 100 wt% of the cleaning composition.
In some embodiments, the cleaning composition may further comprise: bleaching agents, phase-fixing agents or buffers.
According to one or more aspects, a cleaning composition for cleaning a glass article, the cleaning composition comprising, relative to 100 wt% of the cleaning composition 100: a base in the range of about 5 wt% to about 20 wt%; a surfactant in the range of about 2 wt% to about 5 wt%; a chelating agent in the range of about 3 wt% to about 8 wt%; an organic solvent in the range of about 3 wt% to about 8 wt%; and a dispersion stabilizer in the range of about 0.1 wt% to about 3 wt%, wherein the surfactant has the structure of formula (2) above.
According to one or more aspects, a method of cleaning a glass substrate, the method comprising: supplying a cleaning composition onto a glass substrate; cleaning a surface of the glass substrate by using a friction cleaning unit in such a manner that the cleaning composition contacts the glass substrate; and removing the cleaning composition from the glass substrate. The cleaning composition may include, with respect to 100 wt% of the cleaning composition: a base in the range of about 5 wt% to about 20 wt%; a surfactant in the range of about 2 wt% to about 5 wt%; a chelating agent in the range of about 3 wt% to about 8 wt%; an organic solvent in the range of about 3 wt% to about 8 wt%; and a dispersion stabilizer in the range of about 0.1 wt% to about 3 wt%.
The dispersion stabilizer may have the structure of the above formula (1). Further, the surfactant may have the structure of formula (2) described above.
Drawings
These and/or other aspects will be apparent from and elucidated with reference to the embodiments described hereinafter, when taken in conjunction with the following figures.
Fig. 1 is a graph illustrating changes in contact angle between before and after cleaning using the cleaning compositions of example 1, comparative example 1, and comparative example 2.
Fig. 2 is a graph illustrating an average glass particle removal rate when cleaning is performed by using the cleaning compositions of example 1, comparative example 1, and comparative example 2.
Fig. 3 is a graph illustrating the change in particle number over time before and after application of the cleaning composition of example 1 and after reapplication of the conventional cleaning composition.
Fig. 4 is a graph illustrating the continuous temporal change in the number of particles (indicated by the shaded portion) during application of the cleaning composition of example 1.
Detailed Description
Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. In this regard, the present embodiments may take different forms and should not be construed as limited to the description herein. Accordingly, the embodiment will be described below only by referring to the drawings to explain aspects of the present description. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. This embodiment is to be construed as providing the more complete description of the present invention to those skilled in the art to which the present invention pertains. Like reference numerals refer to like elements throughout the drawings. In addition, various elements and regions in the drawings have been schematically illustrated. Accordingly, the invention is not limited by the relative sizes or distances illustrated in the drawings.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be understood that: terms such as "comprising," "including," and "having," when used herein, specify the presence of stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Furthermore, it should be understood that: terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
When the specific embodiment can be implemented in a different manner, the specific processing procedure can be performed in a different manner from the described procedure. For example: two methods recited in succession may be executed substantially concurrently or in the reverse order to that recited.
Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected in the drawings. Thus, embodiments should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing processes. As used herein, the term "and/or" includes any and all combinations of more than one of the associated listed elements. Further, the term "substrate" as used herein may refer to the substrate itself or a stacked structure including the substrate and a layer or a thin film formed thereon. Further, the term "substrate surface" as used herein may refer to an exposed surface of the substrate itself or an outer side surface of a layer or film formed on the substrate.
In one aspect, a cleaning composition is provided, comprising: alkali, surfactant, chelating agent, organic solvent and dispersion stabilizer. The cleaning composition may include, with respect to 100 wt% of the cleaning composition: a base in the range of about 1 wt% to about 20 wt%; a surfactant in the range of about 0.1 wt% to about 10 wt%; a chelating agent in the range of about 0.1 wt% to about 10 wt%; an organic solvent in the range of about 0.1 wt% to about 10 wt%; and a dispersion stabilizer in the range of about 0.1 wt% to about 10 wt%. The remainder of the cleaning composition may include water, such as deionized water (DIW).
In some embodiments, the cleaning composition may include, relative to 100 wt% of the cleaning composition: a base in the range of about 5 wt% to about 20 wt%; a surfactant in the range of about 2 wt% to about 5 wt%; a chelating agent in the range of about 3 wt% to about 8 wt%; an organic solvent in the range of about 3 wt% to about 8 wt%; and a dispersion stabilizer in the range of about 0.1 wt% to about 3 wt%.
[ Dispersion stabilizer ]
The dispersion stabilizer may have a structure of the following formula (1).
< formula (1) >
Figure BDA0002427592420000051
Wherein "n" is an integer of 10 to 5,000 and "M" is+"is a cation of an alkali metal or alkaline earth metal, and" RIs "OOr COO
In some embodiments, the dispersion stabilizer may have a structure of formula (1-1) below.
< formula (1-1) >
Figure BDA0002427592420000061
Wherein "n" is an integer of 50 to 1,000, and "M" is sodium or potassium.
More specifically, the dispersion stabilizer may include at least one of the structures represented by the following formula (1-2).
< formula (1-2) >
Figure BDA0002427592420000062
We speculate that: the dispersion stabilizer is permeable to-RM+Partially attached to the particles to remove the particles. That is, we consider: due to-RM+The portion may be attached to the particles so the particles may be easily removed from the surface of the glass article. However, the invention is not limited by this theory.
When the cleaning composition is used to clean a glass article, if the content of the dispersion stabilizer is too small, the ability to prevent particles from reattaching to the glass article such as a glass substrate may be lacking. On the other hand, if the content of the dispersion stabilizer is too large, it may be economically disadvantageous.
[ surfactant ]
The surfactant may include at least one selected from the group consisting of polyoxyalkylene alkylphenol ethers, polyoxyalkylene aryl phenol ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene alkylamines, sorbitan fatty acid esters, polyalkyl glycosides, alkanolamines, and arylalkanolamines.
In some embodiments, the surfactant can have the structure of formula (2) below.
< formula (2) >
CS-(EOS)a-(POS)b
Wherein the chain segment represented by "CS" is straight chain hydrocarbon having 10 to 14 carbon atoms, the chain segment represented by "EOS" is ethylene oxide, the chain segment represented by "POS" is propylene oxide, the EOS and the POS form blocks or are mutually alternated, and a: b is 7:3 to 9.5: 0.5.
Herein, the ethylene oxide segments represent repeating units derived from ethylene oxide and the propylene oxide segments represent repeating units derived from propylene oxide.
In the surfactant of formula (2), the CS may be any one of decyl, undecyl, lauryl, tridecyl, and tetradecyl. In some embodiments, in the surfactant of formula (2), the CS may have 11 to 13 carbon atoms, and the CS may be, for example, a linear hydrocarbon having 12 carbon atoms.
In formula (2), although the EOS and POS represent the formation of the respective blocks, the EOS and POS may not need to form the respective blocks. Thus, as for- (EOS) represented in the formula (2)a-(POS)bE.g. (EOS)2-(POS)-(EOS)5-(POS)2-、-(EOS)-(POS)2-(EOS)6- (POS) -and- (EOS)9- (POS) - (EOS) - (POS) -, one or more POS may be interposed between two EOSs, and one or more EOS may be interposed between two POS.
Here, "a" and "b" representing the number of the corresponding repeating units may be formed in a predetermined ratio, and a: b may be, for example, 7:3 to 9.5:0.5 or 8.5:1.5 to 9.3: 0.7. If a: b is too small (i.e., the ratio of EOS to POS in the POS is too high), the Phase Inversion Temperature (PIT) may be reduced and, therefore, the cleaning power may be reduced. On the other hand, if a: b is too large (i.e., the ratio of EOS to POS in the POS is too low), foam may be excessively generated during the cleaning process.
[ alkali ]
The base may include, but is not limited to, for example: from sodium hydroxide (NaOH), potassium hydroxide (KOH), magnesium hydroxide (Mg (OH)2) Calcium hydroxide (Ca (OH)2) Ammonia (NH)3) At least one selected from the group consisting of tetraethylammonium hydroxide, tetramethylammonium hydroxide, aminoethoxyethanol, triethanolamine, diethanolamine, monoethanolamine, ammonium hydroxide, tetrapropylammonium hydroxide, butylammonium hydroxide and choline hydroxide.
The hydroxyl group of the base decomposes the organic chain and can be efficiently removed. In addition, when the glass particles are removed, the hydroxyl groups can finely etch the contact region between the glass particles and the glass substrate (i.e., change the state of silica to the state of silicic acid) and can easily separate the glass particles. Therefore, if the content of alkali is too small, the cleaning force may be insufficient. On the other hand, if the content of the alkali is too large, it may cause damage to the environment.
[ mixture for tweezers ]
The chelating agent may remove metallic material from the contaminants, however, the present invention is not limited thereto.
The chelating agent may include: at least one selected from the group consisting of potassium pyrophosphate, calcium carbonate, sodium silicate, sodium gluconate, citric acid, salicylic acid, malonic acid, succinic acid, glutaric acid, pyrophosphoric acid, polyphosphoric acid, benzotriazole, sorbitol, glucose, carboxybenzotriazole, and tolyltriazole.
In some embodiments, the chelating agent may comprise: diethylenetriaminepentaacetic acid (DTPA) (CAS No.:67-43-6), nitro-2, 2', 2 "-triacetic acid (NTA) (CAS No.:139-13-9), ethylenediaminetetraacetic acid (EDTA) (CAS No.:60-00-4), or metal salts thereof. At this time, the metal salt may include a potassium salt or a sodium salt.
The chelating agents may be used alone or in combination. For example: a mixture of NTA of about 2 wt% to about 7 wt% and DTPA of about 1 wt% to about 6 wt% may be used as a chelating agent with respect to 100 wt% of the cleaning composition.
If the amount of chelating agent is too low, the metal contaminants may not be sufficiently removed. On the other hand, if the content of the chelating agent is too high, the clean phase may be unstable, the production cost may increase, and the T-N value may increase, and thus, there may be a possibility of causing environmental problems.
[ organic solvent ]
As the organic solvent, an organic solvent such as alcohols, alcamines, ketones, esters, and amides may be used, however, the present invention is not limited thereto.
The alcohol used as the organic solvent may include at least one selected from the group consisting of ethanol, propanol, butanol, hexanol, heptanol, octanol, decanol, isopropanol, isohexanol, isooctanol, isodecanol, ethylene glycol, diethylene glycol, triethylene glycol, ethylene glycol methyl ether, diethylene glycol methyl ether, triethylene glycol methyl ether, ethylene glycol ethyl ether, diethylene glycol ethyl ether, triethylene glycol ethyl ether, ethylene glycol monopropyl ether, diethylene glycol monopropyl ether, triethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, ethylene glycol dibutyl ether, diethylene glycol dibutyl ether, triethylene glycol dibutyl ether, ethylene glycol monohexyl ether, diethylene glycol monohexyl ether, and triethylene glycol monohexyl ether.
The alkanolamines used as the organic solvent may include at least one selected from the group consisting of Monoethanolamine (MEA), Diethanolamine (DEA), Triethanolamine (TEA), N-ethyldiethanolamine, N-diethylethanolamine, and triisopropanolamine.
The ketones used as the organic solvent may include at least one selected from the group consisting of acetone, 2-butanone, 2-heptanone, 3-heptanone, 4-methyl-2-pentanone, cyclopentanone, and cyclohexanone.
Esters useful as organic solvents may include those selected from the group consisting of ethyl acetate, n-butyl acetate, isobutyl acetate, amyl formate, isoamyl acetate, isobutyl acetate, butyl propionate, isopropyl butyrate, ethyl butyrate, butyl butyrate, alkyl esters, methyl lactate, ethyl lactate, methyl glycolate, ethyl glycolate, butyl glycolate, methyl methoxyacetate, ethyl methoxyacetate, butyl methoxyacetate, methyl ethoxyacetate, ethyl 3-hydroxypropionate, methyl 3-methoxypropionate, ethyl 3-methoxypropionate, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, methyl 2-hydroxypropionate, ethyl 2-hydroxypropionate, propyl 2-hydroxypropionate, methyl 2-methoxypropionate, methyl 2-hydroxypropionate, ethyl methoxypropionate, ethyl lactate, ethyl glycolate, butyl glycolate, methyl methoxyacetate, Ethyl 2-methoxypropionate, propyl 2-methoxypropionate, methyl 2-ethoxypropionate, ethyl 2-ethoxypropionate, methyl 2-hydroxy-2-methylpropionate, ethyl 2-hydroxy-2-methylpropionate, methyl 2-methoxy-2-methylpropionate, ethyl 2-methoxy-2-methylpropionate, methyl pyruvate, ethyl pyruvate, propyl pyruvate, methyl acetoacetate, ethyl acetoacetate, methyl 2-ketobutyrate, ethyl 2-ketobutyrate, 3-methoxybutyl acetate, 3-methyl-3-methoxybutyl acetate, ethyl carbitol acetate, butyl carbitol acetate and gamma-butyrolactone.
The amide used as the organic solvent may include at least one selected from the group consisting of N, N-dimethylformamide, N-methylpyrrolidone and N, N-dimethylacetamide.
In some embodiments, the organic solvent can comprise a mixture of TEA and MEA. At this point, the ratio of TEA to MEA weight can be about 7:3 to about 9: 1. If the weight ratio of TEA to MEA is outside the above range, the color of the cleaning composition may change when left for a long time.
[ other ingredients ]
According to an embodiment, the cleaning composition may further include a phase stabilizer, a buffer, and a bleaching agent in addition to the above components.
(1) Phase stabilizer
Fatty acids or metal salts thereof may be used as phase stabilizers. For example: sodium or potassium salts of fatty acids having 5 to 15 carbon atoms can be used. However, the present invention is not limited thereto.
The content of the phase stabilizer may be in the range of about 2 wt% to about 8 wt% with respect to 100 wt% of the cleaning composition. If the content of the phase stabilizer is too small, the phase stabilizer may not exert a function of preventing phase separation. In addition, if the content of the phase stabilizer is too large, the cleansing power of the cleansing composition may be weakened.
(2) Bleaching agent
For example: NaOCl may be used as a bleaching agent, however, the present invention is not limited thereto.
The bleaching agent may be present in an amount ranging from about 0.1 wt% to about 1 wt% relative to 100 wt% of the cleaning composition. If the content of the bleaching agent is too small, the organic material removal efficiency may be degraded. Further, if the content of the bleaching agent is too large, the amount of active oxygen may increase, and thus, the cleaning power may be weakened.
(3) Buffer solution
For example: can use K2CO3As a buffer material, however, the present invention is not limited thereto.
The buffer solution may be included in an amount ranging from about 0.2 wt% to about 2 wt% with respect to 100 wt% of the cleaning composition. If the buffer content is too small, the pH of the cleaning composition may not be stable. Furthermore, if the buffer content is too large, it may be outside the pH range suitable for cleaning.
When the cleaning composition is used, particle contamination and organic contaminants on the surface of the glass substrate can be effectively removed.
Hereinafter, the constitution and effect of the present invention will be described in more detail with reference to specific embodiments and comparative examples, however, these embodiments are only intended to provide a more clear understanding of the present invention and are not intended to limit the scope of the present invention.
Example 1 production of cleaning composition
A cleaning composition of the following composition was prepared (wt% based on the total weight of the cleaning composition).
(1)10 wt% of a base (5 wt% KOH 5, 5 wt% NaOH)
(2) 3% by weight of a surfactant (C12- (EOS)9-(POS)1)
(3)5 wt% of a chelating agent (2 wt% of calcium carbonate, 3 wt% of sodium carbonate)
(4) 5% by weight of an organic solvent (2% by weight of diethylene glycol, 3% by weight of triethylene glycol)
(5)1 wt% of a dispersion stabilizer (in the formula (1), n is 150, and-COONa is used as-RM+)
(6) The rest of deionized water
After the above-mentioned composition was provided by quantifying the weight of each component, the cleaning composition was manufactured by mixing the components at room temperature.
Comparative examples 1 and 2
The performance was compared by using two commercial cleaning compositions (LGL200, Parker225X) currently used to clean glass substrates.
[ organic Material removing ability test 1]
First, in order to manufacture a glass substrate sample having a surface contaminated with organic substances, an adhesive tape was attached to the surface of the glass substrate sample (100mm × 100mm), and the adhesive tape was removed by applying a force perpendicular to the surface of the glass substrate sample after 1 hour. In this way, 60 glass substrate samples whose surfaces were contaminated with adhesive organic components were prepared.
Then, by using the cleaning composition of example 1, contact angles of 20 glass substrate samples before and after cleaning were measured. For each glass substrate sample, the contact angle of a water drop was measured, and the contact angle was measured again after cleaning the glass substrate sample with the cleaning composition. The average contact angle before cleaning was calculated and the average contact angle after cleaning was calculated.
Further, the average contact angle before/after cleaning was calculated in the same manner by using the cleaning composition of comparative example 1 for another 20 glass substrate samples and the cleaning composition of comparative example 2 for the remaining 20 glass substrate samples.
Fig. 1 is a graph illustrating changes in contact angle between before and after cleaning using the cleaning compositions of example 1, comparative example 1, and comparative example 2.
Referring to fig. 1, the average contact angles before cleaning using the cleaning compositions of comparative examples 1 and 2 were 69 ° and 76 °, respectively, and the average contact angles after cleaning were 30 ° and 29 °, respectively. That is, the degrees of decrease in the average contact angle between before and after cleaning were 39 ° and 47 °, respectively.
On the other hand, the average contact angle before cleaning using the cleaning composition of example 1 was 75 °, and the average contact angle after cleaning was 21 °. That is, the degree of decrease in the average contact angle between before and after cleaning was 54 °.
Therefore, since the degree of change in the average contact angle was significantly large, it was observed that the cleaning composition of example 1 exhibited excellent organic substance removing ability.
[ glass particle removal ability test 1]
First, in order to manufacture a glass substrate sample having a surface contaminated with glass particles, fine glass particles were applied to the surface of the glass substrate sample (100mm × 100 mm). For this purpose, fine glass particles were dispersed in ethanol and then coated on the surface of the glass substrate sample by a spin coating method. Then, drying was performed to sufficiently remove ethanol. In this way, 60 glass substrate samples whose surfaces were contaminated with glass particles were prepared.
Then, by using the cleaning composition of example 1, the glass particle removal rate of 20 glass substrate samples before/after cleaning was measured. The glass particle removal rate was measured at 9 points for each glass substrate sample, and the average thereof was defined as the glass particle removal rate of the glass substrate sample. Further, the glass particle removal rate was measured for each of the 20 glass substrate samples, and then the average value thereof was defined as the glass particle removal rate of the cleaning composition of example 1.
Further, the average glass particle removal rate before/after cleaning was calculated in the same manner by using the cleaning composition of comparative example 1 for another 20 glass substrate samples and the cleaning composition of comparative example 2 for the remaining 20 glass substrate samples.
Fig. 2 is a graph illustrating an average glass particle removal rate when cleaning is performed by using the cleaning compositions of example 1, comparative example 1, and comparative example 2.
Referring to fig. 2, when the cleaning compositions of comparative examples 1 and 2 were used, the glass particle removal rates were 8.60% (comparative example 1) and 14.77% (comparative example 2).
On the other hand, when the cleaning composition of example 1 was used, the glass particle removal rate was 17.07%.
Therefore, since the glass particle removal rate is relatively large, it can be observed that the cleaning composition of example 1 exhibits an excellent glass particle removal rate.
[ wire application test 1]
The change in particle number when the cleaning composition of example 1 was applied to a production line was measured and illustrated in fig. 3. Fig. 3 illustrates the change in particle number over time before and after application of the cleaning composition of example 1 and after reapplication of the conventional cleaning composition. Here, the particle number means a particle number of 0.3 micrometers (μm) or more in diameter.
Referring to fig. 3, the average number of particles (shown by the horizontal dotted line) when the cleaning composition of example 1 was applied was more reduced by about 16% than the average number of particles (shown by the horizontal dotted line) when the cleaning composition of comparative example 1 was applied.
Thus, it was observed that the particle number can also be effectively reduced in a practical process when applying the cleaning composition.
[ wire application test 2]
The change in particle number when the cleaning composition of example 1 was applied to the production line was continuously measured and illustrated in fig. 4. Fig. 4 illustrates the continuous temporal change in the number of particles (shaded portion) during application of the cleaning composition of example 1.
In fig. 4, the continuous graph represents the results of all examinations of the number of particles in all articles, and the square points represent the results of sample examinations of the number of particles in articles at corresponding points in time. Since the results of the sample inspection showed substantially the same tendency as all the inspection results (hatched portions) during the time period in which the cleaning composition of example 1 was applied, it was determined that the inspection of the particle number had been performed substantially accurately.
Furthermore, as a result of calculation of all the mean values, from the results (square points) of the sample examinations carried out, it can be observed that: the number of particles was reduced by about 15% more when the cleaning composition of example 1 was used than when a conventional cleaning composition was used. Furthermore, from the results of all examinations (black line), it is observed that: the number of particles was reduced by about 17% more when the cleaning composition of example 1 was used than when a conventional cleaning composition was used.
Thus, it was observed that the particle number can also be effectively reduced in a practical process when applying the cleaning composition.
Comparative example 3
A cleaning composition was produced in the same manner as in example 1, except that a material having a structure of the following formula (3) was used as a dispersion stabilizer.
< formula (3) >
Figure BDA0002427592420000131
(wherein n is 150)
[ example 2]
A cleaning composition was produced in the same manner as in example 1, except that a material having a structure of the following formula (1-3) was used as a dispersion stabilizer.
< formula (1-3) >
Figure BDA0002427592420000132
(wherein n is 150)
[ glass particle removal ability test 2]
The glass particle removal ability test was performed by using the cleaning compositions of example 1, example 2, and comparative example 3. The test method was the same as in the glass particle removing ability test 1.
As a result, it was observed that the glass particle removal rate when the cleaning composition of comparative example 3 was used was 11.91%, whereas the glass particle removal rate when the cleaning composition of example 1 was used was 18.11%, and the glass particle removal rate when the cleaning composition of example 2 was used was 16.53%.
Thus, it can be observed that: in order to remove glass particles, it is advantageous to use the dispersion stabilizer of the present invention in which-COO is containedNa+The radicals are attached directly to the main chain. In addition, it can be observed that the glass particle removal rate of the dispersion stabilizer of example 1 is higher than that of the dispersion stabilizer of example 2.
[ example 3]
A cleaning composition was produced in the same manner as in example 1, except that a: b in the surfactant was adjusted to 7.5: 2.5.
[ example 4]
A cleaning composition was produced in the same manner as in example 1, except that a: b in the surfactant was adjusted to 7: 3.
Comparative example 4
A cleaning composition was produced in the same manner as in example 1, except that a: b in the surfactant was adjusted to 6.5: 3.5.
[ organic Material removing force test 2]
By using the cleaning compositions of example 1, example 3, example 4 and comparative example 4, the contact angle change was measured in the same manner as in the organic substance removing force test 1, and the measurement results are illustrated in the following table 1.
< Table 1>
a:b Before cleaning After cleaning Contact angle reduction
Example 1 9:1 75 21 54
Example 3 7.5:2.5 69 17 52
Example 4 7:3 74 23 51
Comparative example 4 6.5:3.5 72 24 48
Referring to table 1, it can be observed that the cleaning compositions of examples 1, 3 and 4 have a larger contact angle reduction effect than the cleaning composition of comparative example 4. In other words, it can be observed that the cleaning compositions of examples 1, 3 and 4 have greater organic substance removing effects than the cleaning composition of comparative example 4.
Further, it was observed that the cleaning composition of example 1 had a greater effect of removing organic substances than the cleaning compositions of examples 3 and 4.
[ example 5]
A cleaning composition was prepared in the same manner as in example 1, except that 2 wt% of Na salt of NTA and 3 wt% of Na salt of DTPA were used as a sequestering agent in place of 2 wt% of calcium carbonate and 3 wt% of sodium carbonate.
[ example 6]
Except that 3 wt% of polyoxymethylene ethyl phenol ether (polyoxymethyl phenol ether) was used as a surfactant instead of 3 wt% of C12- (EOS)9-(POS)1Except that, a cleaning composition was produced in the same manner as in example 1.
[ example 7]
A cleaning composition was prepared in the same manner as in example 1, except that 4 wt% of TEA and 1 wt% of MEA were used as the organic solvent in place of 2 wt% of diethylene glycol and 3 wt% of triethylene glycol.
[ example 8]
A cleaning composition was produced in the same manner as in example 1, except that 2% by weight of potassium pyrophosphate and 3% by weight of sorbitol were used as a sequestering agent in place of 2% by weight of calcium carbonate and 3% by weight of sodium carbonate.
[ example 9]
Except that 3 wt% of the polypropyleneoside was used as a surfactant instead of 3 wt% of C12- (EOS)9-(POS)1Except that, a cleaning composition was produced in the same manner as in example 1.
Although embodiments of the present invention have been described in detail above, those skilled in the art will appreciate that various modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
It is to be understood that the embodiments described herein are to be considered in a descriptive sense only and not for purposes of limitation. Recitation of features or aspects within each embodiment is typically considered to be other similar features or aspects that can be employed in other embodiments.
While one or more embodiments have been described with reference to the accompanying drawings, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (13)

1. A cleaning composition for cleaning glass articles, comprising, relative to 100 wt% of the cleaning composition:
a base in the range of about 1 wt% to about 20 wt%;
a surfactant in the range of about 0.1 wt% to about 10 wt%;
a chelating agent in the range of about 0.1 wt% to about 10 wt%;
an organic solvent in the range of about 0.1 wt% to about 10 wt%; and
a dispersion stabilizer in the range of about 0.1 wt% to about 10 wt%,
wherein the dispersion stabilizer has the following structure of formula (1):
< formula (1) >
Figure FDA0002427592410000011
Wherein "n" is an integer of 10 to 5,000 and "M" is+"is a cation of an alkali metal or alkaline earth metal, and" RIs "OOr COO
2. The cleaning composition of claim 1, wherein the cleaning composition comprises, relative to 100 wt% of the cleaning composition:
a base in the range of about 5 wt% to about 20 wt%;
a surfactant in the range of about 2 wt% to about 5 wt%;
a chelating agent in the range of about 3 wt% to about 8 wt%;
an organic solvent in the range of about 3 wt% to about 8 wt%; and
a dispersion stabilizer in the range of about 0.1 wt% to about 3 wt%.
3. The cleaning composition of claim 1, wherein the dispersion stabilizer has the following formula (1-1):
< formula (1-1) >
Figure FDA0002427592410000021
Wherein "n" is an integer of 50 to 1,000, and "M" is sodium or potassium.
4. The cleaning composition as set forth in claim 1, wherein the surfactant comprises at least one selected from the group consisting of polyoxyalkylene alkylphenol ethers, polyoxyalkylene aryl phenol ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene alkylamines, sorbitan fatty acid esters, polyalkyl glycosides, alkanolamines, and aralkanolamines.
5. The cleaning composition as set forth in claim 1, wherein the surfactant has a structure of the following formula (2):
< formula (2) >
CS-(EOS)a-(POS)b
Wherein the chain segment represented by "CS" is straight chain hydrocarbon having 10 to 14 carbon atoms, the chain segment represented by "EOS" is ethylene oxide, the chain segment represented by "POS" is propylene oxide, the EOS and the POS form blocks or are mutually alternated, and a: b is 7:3 to 9.5: 0.5.
6. The cleaning composition according to claim 5, wherein the segment represented by CS is a linear hydrocarbon having 12 carbon atoms, and a: b is 8.5:1.5 to 9.3: 0.7.
7. The cleaning composition of claim 1, wherein the base comprises one or more of sodium hydroxide (NaOH), potassium hydroxide (KOH), magnesium hydroxide (Mg (OH)2) Calcium hydroxide (Ca (OH)2) Ammonia (NH)3) At least one selected from the group consisting of tetraethylammonium hydroxide, tetramethylammonium hydroxide, aminoethoxyethanol, triethanolamine, diethanolamine, monoethanolamine, ammonium hydroxide, tetrapropylammonium hydroxide, butylammonium hydroxide and choline hydroxide.
8. The cleaning composition of claim 1, wherein the chelating agent comprises:
at least one selected from the group consisting of potassium pyrophosphate, calcium carbonate, sodium silicate, sodium gluconate, citric acid, salicylic acid, malonic acid, succinic acid, glutaric acid, pyrophosphoric acid, polyphosphoric acid, benzotriazole, sorbitol, glucose, carboxybenzotriazole, and tolyltriazole; or is
Nitro-2, 2', 2 "-triacetic acid (NTA), diethylenetriaminepentaacetic acid (DTPA), ethylenediaminetetraacetic acid (EDTA), or metal salts of the above,
wherein the metal salt comprises a potassium or sodium salt.
9. The cleaning composition of claim 8, wherein the sequestering agent comprises a metal salt of NTA in the range of about 2 wt% to about 7 wt% and a metal salt of DTPA in the range of about 1 wt% to about 6 wt% relative to 100 wt% of the cleaning composition.
10. A cleaning composition for cleaning glass articles, comprising, relative to 100 wt% of the cleaning composition:
a base in the range of about 5 wt% to about 20 wt%;
a surfactant in the range of about 2 wt% to about 5 wt%;
a chelating agent in the range of about 3 wt% to about 8 wt%;
an organic solvent in the range of about 3 wt% to about 8 wt%; and
a dispersion stabilizer in the range of about 0.1 wt% to about 3 wt%,
wherein the surfactant has the following structure of formula (2):
< formula (2) >
CS-(EOS)a-(POS)b
Wherein the chain segment represented by "CS" is straight chain hydrocarbon having 10 to 14 carbon atoms, the chain segment represented by "EOS" is ethylene oxide, the chain segment represented by "POS" is propylene oxide, the EOS and the POS form blocks or are mutually alternated, and a: b is 7:3 to 9.5: 0.5.
11. A method of cleaning a glass substrate, the method comprising:
supplying a cleaning composition onto a glass substrate;
cleaning a surface of the glass substrate by using a friction cleaning unit in such a manner that the cleaning composition contacts the glass substrate; and
removing the cleaning composition from the glass substrate,
wherein the cleaning composition comprises, relative to 100 wt% of the cleaning composition:
a base in the range of about 5 wt% to about 20 wt%;
a surfactant in the range of about 2 wt% to about 5 wt%;
a chelating agent in the range of about 3 wt% to about 8 wt%;
an organic solvent in the range of about 3 wt% to about 8 wt%; and
a dispersion stabilizer in the range of about 0.1 wt% to about 3 wt%.
12. The method of claim 11, wherein the dispersion stabilizer has the structure of formula (1):
< formula (1) >
Figure FDA0002427592410000041
Wherein "n" is an integer of 10 to 5,000 and "M" is+"is a cation of an alkali metal or alkaline earth metal, and" RIs "OOr COO
13. The method of claim 11, wherein the surfactant has the structure of formula (2):
< formula (2) >
CS-(EOS)a-(POS)b
Wherein the chain segment represented by "CS" is straight chain hydrocarbon having 10 to 14 carbon atoms, the chain segment represented by "EOS" is ethylene oxide, the chain segment represented by "POS" is propylene oxide, the EOS and the POS form blocks or are mutually alternated, and a: b is 7:3 to 9.5: 0.5.
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Application publication date: 20200612