KR20110031058A - A coating composite which prevent to the sick house syndrome made by herb medicine materials - Google Patents

A coating composite which prevent to the sick house syndrome made by herb medicine materials Download PDF

Info

Publication number
KR20110031058A
KR20110031058A KR1020090089327A KR20090089327A KR20110031058A KR 20110031058 A KR20110031058 A KR 20110031058A KR 1020090089327 A KR1020090089327 A KR 1020090089327A KR 20090089327 A KR20090089327 A KR 20090089327A KR 20110031058 A KR20110031058 A KR 20110031058A
Authority
KR
South Korea
Prior art keywords
parts
ceramic powder
concrete
house syndrome
sick house
Prior art date
Application number
KR1020090089327A
Other languages
Korean (ko)
Inventor
김남순
Original Assignee
김남순
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김남순 filed Critical 김남순
Priority to KR1020090089327A priority Critical patent/KR20110031058A/en
Publication of KR20110031058A publication Critical patent/KR20110031058A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/05Alcohols; Metal alcoholates
    • C08K5/053Polyhydroxylic alcohols
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/09Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/092Polycarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04Homopolymers or copolymers of esters
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/45Anti-settling agents
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2237Oxides; Hydroxides of metals of titanium
    • C08K2003/2241Titanium dioxide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Plant Pathology (AREA)
  • Paints Or Removers (AREA)

Abstract

The existing sick house syndrome preventive coatings have a problem of deterioration with time. The reason for this is that the sickhouse syndrome prevention function depends only on the functional ceramic powder, and the paint composition is applied to various chemicals, molds and bacteria in concrete. This is because the bonding force between the liquid resin and the ceramic powder is lowered due to invasion.

The present invention is an eco-friendly than conventional products using bamboo salt, Injin mugwort, three hundred seconds herbal extracts, and penetrates into the pores of concrete to remove various harmful substances in the concrete to prevent intrusion of the coating film and the bonding force between the liquid resin and ceramic powder To prevent lifting and deterioration of the coating film and to improve adhesion to the surface of the coating, while using the functional ceramic powder in the proper ratio of not only one type but also using a combination of guinea-stone, elvan, and illite in the appropriate ratio. It is a new composition for preventing sick house syndrome using herbal materials that show bio functions such as deodorization and sterilization inside and outside concrete floor.

Description

A coating composite which prevent to the Sick House Syndrome made by herb medicine materials}

When entering a new residential building such as an apartment or a general house, various chemicals, asbestos, fine dust, mold, and various bacteria generated from paint, wallpaper, furniture, and concrete painted inside cannot be discharged from the building. Symptoms of headache, fatigue, dyspnea, asthma, and various dermatitis, which are accumulated in the living room, are called 'Sick House Syndrome' and are a big problem in the modern life of modern people who demand a pleasant and healthy life. Among them, the concrete surface of the new building has been pointed out as one of the main causes of polluting indoor air and causing various respiratory diseases and dermatitis as a habitat for cement toxicity, unpleasant odor and various bacteria.

At present, paints used in the interior of residential buildings are used for various types of bird's syndrome prevention paints that do not contain various chemicals such as benzene, toluene, formaldehyde or various heavy metals to prevent the phenomenon of sick house syndrome.

In the case of the new house syndrome prevention paint, the various functional ceramic powders that show useful properties to the human body in water-soluble liquid resins or inorganic liquid resins that do not contain volatile organic compounds are macvanite, ocher, germanium, tourmaline, jade, and charcoal. It is a mixed product, which is applied to concrete floors indoors to prevent sick house syndrome by various bio-functions exhibited by functional ceramic powders such as far-infrared radiation, anion emission, antibacterial and deodorization.

However, the existing sick house syndrome preventive paint has a function of preventing the sick house syndrome, that is, bio function deterioration as time passes after it is applied to the concrete surface. The reason is that the building is made by mixing functional ceramic powder with various liquid resins. In the early stage of application on concrete surface, it maintains a certain binding force between liquid resin and functional ceramic powder that exhibits bio function, so it can exhibit far infrared radiation, anion emission, antibacterial and deodorization function. This is because the bond strength is degraded, so it is not possible to function normally. The decrease in the bond strength is caused by the infringement of the paint film by various chemicals, molds, and bacteria in the concrete pores, resulting in poor adhesion and cracking of the film. It causes uplift and various bio functions In particular, the function of preventing the growth of mold and various bacteria on the concrete surface has a problem of rapidly deteriorating with time.

In conclusion, the biggest problem of the existing anti-synthetic paint

1) The function of preventing sick house syndrome, that is, various bio functions, depend only on functional ceramic powder, which is part of the paint composition.

2) The coating film is invaded by various harmful substances on the inner surface of the concrete, and the bonding strength between the binder and the ceramic powder is lowered.

3) The paint applied to the concrete surface has a functional ceramic powder remaining on the surface layer, which makes it difficult to remove various harmful substances in the pores of the concrete.

The physical properties of the paint itself are important for the new house syndrome prevention paint to exhibit excellent properties, but the paint film must not be infringed by removing various harmful substances inside the concrete to be painted.

Therefore, the present invention is to extract various chemical substances, molds, bacteria, etc. of the concrete surface to be coated to solve the problems of the existing sick house syndrome prevention paints, such as bamboo salt, injin mugwort, three hundred seconds liquid extracts Its main purpose is to remove various harmful substances by penetration into concrete pores during application and to improve the bonding force between binder and functional ceramic powder. Of three kinds of bio-ceramic powder materials were utilized to make the best use of each

In other words, in order to achieve excellent effect that the physical properties of the new house syndrome prevention paint do not deteriorate over time, first, it removes harmful substances in concrete. In other words, it uses liquid herbal ingredient extract for antibacterial and sterilization function. It is characterized by using functional ceramic powder mixed in a certain ratio to give functions such as far infrared radiation, anion release, antibacterial and deodorization.

The present invention will be described in detail through the following examples.

In the example, "part" is weight ratio.

Example

<Manufacture of herbal extracts >

Add 400-600 parts of water to the container, add 50-100 parts of bamboo salt slowly, and slowly melt at 30-40 ° C to completely dissolve it. Cut the dried dried mugwort, add 30-60 parts, cut 30 seconds and cut 30-50 parts. After heating and stirring at 100 ° C for 2-4 hours, add 0.1-0.5 part of rosemary extract and 0.1-0.5 part of grapefruit seed extract as preservatives at 40-60 ° C, and stir for 20-30 minutes, and then cool to room temperature It is filtered through a mesh of about 400 mesh to produce herbal extracts. Bamboo salt used here is made of bamboo salt, which is baked nine times with bamboo salt. Injin mugwort has dried leaves and stems, and 300 seconds dried stems and roots. It is effective to use

Injin mugwort has strong antimicrobial activity against various bacteria, and coumari and chlorogenic acid components are excellent in pressed malt and various antifungal functions. Bamboo salt has excellent antibacterial and bactericidal effect.

In addition, the three hundred scent is a natural herbal medicine with a unique aroma, it has a strong bactericidal effect and is said to be about 40,000 times more effective than sulfamine, a chemotherapeutic agent for staphylococcus and fungi.

In order to give antibacterial and sterilizing function, liquid antibacterial and liquid disinfectants made of chemical substances are not used as in the case of existing products. Problems such as abnormalities in the paint composition, such as poor drying of the paint coating, poor compatibility with the binder, etc., and have eco-friendly defects. The herbal extract used in the present invention is environmentally friendly and does not cause the above problems. In particular, it is an liquid extract, which has antimicrobial and sterilization functions due to the penetration into concrete pores, and additionally, it can give a binder function together with the liquid resin in the paint composition.

<Manufacture of sick house syndrome coating composition >

In a container, 100-200 parts of water and 50-100 parts of herbal extracts were stirred at low speed. Then, 30-60 parts of powder containing a mixture of functional ceramic powders such as guinea pig, elvan and illite in a ratio of 1: 1: 2 was added. Stir at a rate of 300-600 r.pm for 4 hours

Through this process, the herbal medicine extract is completely wetted and mixed into the pores of the functional ceramic powder, and the herbal powder extract gives antibacterial and antiseptic function with far-infrared radiation, anion, antibacterial and deodorizing function of the ceramic powder itself. The mixed herbal medicine extract penetrates into the pores of the concrete surface and removes chemicals, mold and various bacteria present in the pores to prevent invasion of the coating film. Bio function is applied to the ceramic powder and liquid material extract. As a result, it is used in the interior and exterior of the concrete surface, and unlike the existing paint for preventing sick house syndrome, it exhibits stable and continuous bio-physical properties over time.

The herbal extract used in the present invention has the advantage of simultaneously exhibiting the role of the binder and the functional bio-function as a liquid extract. In other words, the functional ceramic powder contained in the existing sick house syndrome prevention coating film has a disadvantage in that the coating film is infringed due to various chemicals, molds, and bacteria, and loses the bonding strength with the binder. This is because the material extract enhances the binder function inside the coating film and penetrates into the pores of the concrete to promote antimicrobial and bactericidal effect together with the functional ceramic powder, thereby exhibiting a better prevention of sick house syndrome.

In addition, the present invention is to give the best bio-function by using a mixture of guiyang, elvan, illite in a ratio of 1: 1: 2 unlike conventional products to give bio-function by functional ceramic powder. Among the various bio-functions of ceramic powder, the earstone is mainly used for far-infrared emission, the elvan is deodorized and antibacterial, and the illite is used for the anion-release and deodorization function. It is known as the ore with the highest value among the ores

In the next process, 100-200 parts of aqueous acrylic emulsion resin, 0.3-1 parts of anion polycarboxylic acid type as a dispersant, 0.2-0.6 parts of polyester or modified silicone type as an antifoaming agent, and 0.5-1.5 parts of ethylene glycol and propylene glycol as antifreezing agent are added. Stir for 10-20 minutes at the speed of 500-800r.pm, add 25-40 parts of titanium dioxide as a color pigment, and disperse at high speed at 1,500-1,800rpm, then sepiolite as a sedimentation inhibitor of pigment and ceramic powder 0.5 Add 1 part and disperse for 10-20 minutes, and then slowly add the mixed solution of 1-3 parts of antifoaming agent to 10-20 parts of water while stirring at a speed of 1,000 rpm to 100 r.pm and stir for about 20-30 minutes. After 200 mesh filtration through the filter net to complete the new house syndrome prevention coating composition of the present invention

The acrylic emulsion resin used in this process consists of about 60-70 parts of an acrylic or methacrylic monomer having an aliphatic group, 10-15 parts of styrene monomer, and 10-15 parts of an acrylic monomer having an acid group, and has a glass transition temperature of -5 deg. Acrylic emulsion resin composition with + 10 ° C, viscosity 150poise, 45% solids, and sepiolite used as anti-settling agent has a fine fibrous structure, so it is excellent in thickening liquid materials and maintains stable dispersion in the long term. Effectively prevents settling of pigments and ceramic powder

This invention was coated on the concrete surface of the existing product and the new building, and after two years of comparison test, the existing product had poor adhesive strength, cracking and lifting of the coating, and about 20% of it occurred. Far-infrared radiation, anion emission, antibacterial Although various bio functions such as deodorization function showed about 30% of functional deterioration, the present invention did not deteriorate the function of various bio functions as in the initial state immediately after coating. The physical defects of the coating film did not occur at all. This result is characterized by the inclusion of liquid herbal extracts in the liquid state, which improves the binder function of the paint and prevents the invasion of the road coating film by removing harmful substances in the concrete. It is explained that the functional ceramic powder is mixed and used at the proper ratio.

The present invention is a new house syndrome prevention paint composition generated in new buildings such as apartments, houses, etc. by using the herbal extracts of bamboo salt, jinjin wormwood, and three hundred seconds, by infiltrating into concrete pores, various chemicals, mold, It gives a new function of removing bacteria, increases the binder function of the paint itself with the liquid resin, and mixes three kinds of functional ceramic powders at an appropriate ratio, and serves to prevent the sickhouse syndrome of the paint itself. It is a new eco-friendly paint composition designed to be combined with three kinds of functional ceramic powders. It has excellent function of preventing sick house syndrome and shows more stable and continuous physical properties than existing products even after time of painting. Has the advantage of providing an environment

Claims (2)

400-600 parts of water, 50-100 parts of bamboo salt powder, 30-60 parts of dried Injin mugwort, 30-50 parts of three hundred seconds, 0.1-0.5 parts of rosemary extract, 0.1-0.5 parts of grapefruit seed extract 100-parts of water, 50-100 parts of the extract of item 1 above, guinea pigs: ganban stone: illite powder 30-60 parts by weight ratio of 1: 1: 2, aqueous acrylic emulsion resin 100-200 parts, anion 0.3-1 part of polycarboxylic acid dispersant, 0.2-0.6 part of polyester or modified silicone antifoam, 0.5-1.5 part of ethylene glycol or propylene glycol as antifreezing agent, 25-40 part of titanium dioxide, sepiolite 0.5-1 part as sedimentation inhibitor New House Syndrome Prevention Coating Composition
KR1020090089327A 2009-09-18 2009-09-18 A coating composite which prevent to the sick house syndrome made by herb medicine materials KR20110031058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090089327A KR20110031058A (en) 2009-09-18 2009-09-18 A coating composite which prevent to the sick house syndrome made by herb medicine materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090089327A KR20110031058A (en) 2009-09-18 2009-09-18 A coating composite which prevent to the sick house syndrome made by herb medicine materials

Publications (1)

Publication Number Publication Date
KR20110031058A true KR20110031058A (en) 2011-03-24

Family

ID=43936402

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090089327A KR20110031058A (en) 2009-09-18 2009-09-18 A coating composite which prevent to the sick house syndrome made by herb medicine materials

Country Status (1)

Country Link
KR (1) KR20110031058A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101529857B1 (en) * 2015-03-23 2015-06-17 대복건설 주식회사 Salt mortar composition for building materials
CN110972827A (en) * 2019-12-10 2020-04-10 丽水市农业科学研究院 Method for preventing small water shoots from forming during pipe seedling of water shoots

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101529857B1 (en) * 2015-03-23 2015-06-17 대복건설 주식회사 Salt mortar composition for building materials
CN110972827A (en) * 2019-12-10 2020-04-10 丽水市农业科学研究院 Method for preventing small water shoots from forming during pipe seedling of water shoots

Similar Documents

Publication Publication Date Title
KR100811602B1 (en) Eco-friendly interior materials for building and method of fabricating therof
CN101809108B (en) Anti-allergen agent
KR100903686B1 (en) The Compositions of Nanocomposite ECO Paint for Building Interior Decoration Using the Nanoclay and Its Preparation Method
JP2018512455A (en) Antibacterial articles and compounds therefor
KR102239423B1 (en) Functional paint compositions for eco-friendly construction finishing comprising the plant extract and eco-friendly construction finishing method using the same
JP2014040416A (en) Sterilization and deodorization agent, production method of the same, and application method of the agent
KR102469017B1 (en) Eco-friendly paint composition and construction method using the same
KR102422467B1 (en) Eco-friendly low content acryl type wood oil stain having excellent wood fast permeable, fast drying, waterproofing, flame retarding and antimicrobial and the wood material impregnated and coated with the same
RU2329286C1 (en) Method of prolonged disinfection of premises, equipment, preservation and disinfection of water
KR20180110740A (en) Nature friendly mud paint and the manufacturing method thereof
KR20090095356A (en) Composition for environment-friendly functional paint using volcanic stone
CN105442342A (en) Plant antibacterial and odor-resistant type polyurethane artificial leather and preparation method thereof
WO2021135722A1 (en) Coating having sterilization function and preparation method therefor and application thereof
KR20190012805A (en) FUNCTIONAL PAINT COMPOSITIONS WITH ANTIMICROBIAL AND MOTHPROOfING ACTIVITY
KR20110031058A (en) A coating composite which prevent to the sick house syndrome made by herb medicine materials
US6755904B2 (en) Natural paint and method for manufacturing the same
KR100884087B1 (en) The composition of paint and the manufacturing method thereof
CN106497210A (en) A kind of natural odor type coating additive and preparation method thereof
WO2004087820A1 (en) Insect repellent coating and industrial product using the same
KR102559263B1 (en) Epoxy coating material for wood and coating method using the same
KR101949897B1 (en) Environmentally sustainable ceramic diatomite finish composition having antimicrobial activity and noncombustibility and application method thereof
KR101138638B1 (en) The waterproof paint conposition and its making method
KR20040084571A (en) Functional acrylic water paint that radiating an anion and a far infrared rays
KR102417042B1 (en) Eco-friendly paint construction method
KR102417030B1 (en) Eco-friendly paint composition

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application