WO2021242052A1 - 항균성 고분자 조성물 - Google Patents
항균성 고분자 조성물 Download PDFInfo
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- WO2021242052A1 WO2021242052A1 PCT/KR2021/006693 KR2021006693W WO2021242052A1 WO 2021242052 A1 WO2021242052 A1 WO 2021242052A1 KR 2021006693 W KR2021006693 W KR 2021006693W WO 2021242052 A1 WO2021242052 A1 WO 2021242052A1
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- 0 CCC(C(C)(C)CC(*(C)C)C(NCO)=O)C(NC(N)=N)=O Chemical compound CCC(C(C)(C)CC(*(C)C)C(NCO)=O)C(NC(N)=N)=O 0.000 description 1
- ONMIOGRIABNSBU-UHFFFAOYSA-N CCC(C)C(NCO)=O Chemical compound CCC(C)C(NCO)=O ONMIOGRIABNSBU-UHFFFAOYSA-N 0.000 description 1
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- C09D—COATING 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
- C09D129/00—Coating 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 an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08F120/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F120/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F120/52—Amides or imides
- C08F120/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F120/60—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing nitrogen in addition to the carbonamido nitrogen
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
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- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
- C09D171/02—Polyalkylene oxides
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Definitions
- the present invention relates to an antimicrobial polymer composition.
- microorganisms such as bacteria and mold can live in various environments such as eating habits, residential environments, clothing, and industrial products.
- it is a problem because it can cause various skin diseases, respiratory diseases, allergies, atopic dermatitis, and the like.
- microorganisms living on the surface of electronic products and household goods it may be a factor of deterioration of product performance.
- the conventionally developed antibacterial agents can be broadly divided into inorganic antibacterial agents and organic antibacterial agents.
- the inorganic antibacterial agent is an antibacterial agent containing a metal such as silver or copper, and has excellent thermal stability and has the advantage that antibacterial properties can be maintained even under high temperature conditions, but it is expensive and there is a possibility of discoloration due to metal ions contained after processing. there is a problem.
- organic antibacterial agents have advantages in that they are inexpensive compared to inorganic antibacterial agents and have an excellent antibacterial effect even in a small amount, but there has been a problem in that antibacterial durability is not good because there is a possibility of dissolution after application to a product.
- the organic antibacterial agent can secure the stability of the product in terms of inhibition of reproduction and death of microorganisms, but at the same time, it is toxic and causes irritation to the user's skin.
- an antimicrobial coating composition that can be easily coated on a variety of products, can maintain antibacterial properties without dissolution after coating, and can easily remove the coating layer if necessary.
- Patent Document 0001 Korean Patent No. 10-0601393
- An object of the present invention is to provide an antibacterial polymer composition having an excellent effect of inhibiting bacterial growth.
- the present invention is to provide an antimicrobial article having a coating layer formed by the antimicrobial polymer composition.
- the antimicrobial polymer is included in an amount of 1 part by weight or more and less than 50 parts by weight based on 100 parts by weight of the hydrophilic polymer,
- An antimicrobial polymer composition is provided:
- R 1 to R 3 are each independently hydrogen or methyl
- R 4 to R 7 are each independently hydrogen, alkyl having 1 to 10 carbon atoms, or aryl having 6 to 30 carbon atoms,
- n is an integer from 10 to 10,000.
- the present invention one or more substrate; and a coating layer provided on at least one surface on the substrate, wherein the coating layer is formed by the antimicrobial polymer composition.
- the antimicrobial polymer composition according to the present invention has the advantage of being able to prepare a coating layer having an excellent effect of inhibiting bacterial growth.
- Example 1 is a photograph comparing the antifogging test results of two glass plates each coated with the antimicrobial polymer composition prepared in Example 1 and the antimicrobial polymer composition prepared in Example 4;
- each layer or element is formed “on” or “over” each layer or element, it means that each layer or element is formed directly on each layer or element, or other It means that a layer or element may additionally be formed between each layer, on the object, on the substrate.
- (meth)acrylate used herein includes both acrylate and methacrylate.
- alkyl having 1 to 10 carbon atoms refers to a linear, branched or cyclic alkyl group having 1 to 10 carbon atoms. Specifically, the alkyl group having 1 to 10 carbon atoms is a straight chain alkyl group having 1 to 10 carbon atoms; a straight-chain alkyl group having 1 to 5 carbon atoms; Or it may be a branched or cyclic alkyl group having 3 to 10 carbon atoms.
- Specific examples include methyl, ethyl, propyl, n-propyl, isopropyl, butyl, n-butyl, isobutyl, tert-butyl, sec-butyl, 1-methyl-butyl, 1-ethyl-butyl, pentyl, n-pentyl , isopentyl, neopentyl, tert-pentyl, hexyl, n-hexyl, 1-methylpentyl, 2-methylpentyl, 4-methyl-2-pentyl, 3,3-dimethylbutyl, 2-ethylbutyl, heptyl, n -Heptyl, cyclopentylmethyl, cyclohexylmethyl, octyl, n-octyl, tert-octyl, 1-methylheptyl, 2-ethylhexyl, 2-propylpentyl,
- aryl having 6 to 30 carbon atoms may be a monocyclic or polycyclic aryl group. Specifically, a monocyclic aryl group having 6 to 15 carbon atoms; Or it may be a polycyclic aryl group of 10 to 30. Specific examples of the monocyclic aryl group include, but are not limited to, a phenyl group, a biphenyl group, and a terphenyl group.
- the polycyclic aryl group may be a naphthyl group, an anthryl group, a phenanthryl group, a pyrenyl group, a perylenyl group, a chrysenyl group, a fluorenyl group, and the like, but is not limited thereto.
- antibacterial agents capable of preventing and/or killing microorganisms such as bacteria on the surface of these household chemical products
- the coating is being done.
- the antimicrobial agent contained in the antimicrobial coating damages the cell membrane or cell wall of the microorganism or induces denaturation of their protein, thereby inhibiting the growth of the microorganism, and thus the reproduction and / or death of the microorganism is made.
- the identified bacteria are not only more than 5,000 species, but also can be classified into Gram-positive bacteria and Gram-negative bacteria according to the cell wall layer, and depending on the degree of demanding oxygen It has various characteristics, such as being classified into aerobic bacteria, facultative bacteria and anaerobes. Moreover, the bacterial cell shape also varies, such as spherical, rod-shaped, spiral-shaped, and the like. Therefore, it is usually not easy for one type of antibacterial agent to have a physical/chemical mechanism capable of damaging the cell membrane/cell wall or denaturing proteins of various bacteria. Research is being done for
- Gram-negative bacteria that can be stained red when stained with Gram staining are Proteus mirabilis, Escherichia coli, Salmonella typhi, Pseudomonas aeruginosa) and Vibrio cholerae, which are particularly problematic because these Gram-negative bacteria can cause secondary infections such as respiratory-related pneumonia and urinary tract infection in severely immunocompromised patients.
- These Gram-negative bacteria have an outer membrane composed of lipopolysaccharide, lipoprotein, and other complex high molecular substances, instead of having a relatively very thin peptidoglycan cell wall compared to Gram-positive bacteria. Therefore, in order to exhibit antibacterial properties against Gram-negative bacteria, it is necessary to develop an antibacterial agent capable of effectively denaturing or destroying the outer membrane, that is, the cell membrane, not the cell wall.
- the antibacterial agent used for the antibacterial coating is eluted, or when the user is continuously exposed to the antibacterial agent, problems such as endangering the user's health have occurred.
- the present inventors have found that when an antibacterial coating layer is formed on the surface of a household chemical product using an aqueous polymer coating composition in which an antibacterial polymer and a hydrophilic polymer are dissolved, the antimicrobial coating layer formed is Gram.
- the present invention was completed by confirming that the cell membrane could be destroyed by electrostatic interaction with the cell membrane of the negative bacteria, thereby inhibiting and killing the growth of Gram negative bacteria.
- the antimicrobial polymer composition uses a polymer containing a specific number or more of repeating units as an antibacterial agent, and unlike a coating composition using an antimicrobial monomer/antibacterial oligomer, the antimicrobial agent is eluted from the coating layer even after time elapses This is prevented, so that it can continuously exhibit antibacterial properties, and it is difficult to be absorbed by the human body, so it can be free from the user's safety problem.
- the antimicrobial polymer composition has the advantage of being environmentally friendly because it does not use an organic solvent while exhibiting workability enough to be easily applied to various types and types of articles including a specific amount of hydrophilic polymer.
- R 1 to R 3 are each independently hydrogen or methyl
- R 4 to R 7 are each independently hydrogen, alkyl having 1 to 10 carbon atoms, or aryl having 6 to 30 carbon atoms,
- n is an integer from 10 to 10,000.
- the antimicrobial polymer composition may further include a solvent containing water.
- the hydrophilic polymer is a generic term for polymers that can be dissolved in water, and when the antimicrobial polymer composition includes the hydrophilic polymer, a hydrophilic group included in the hydrophilic polymer, for example, a ), it is possible to impart thixotropy suitable for coating to the coating composition.
- hydrophilic polymer is easily dissolved in water, compatibility with the antimicrobial polymer including the repeating unit represented by Chemical Formula 1 may be excellent.
- a hydrogen bond between a hydrophilic group included in the hydrophilic polymer, for example, a hydroxyl group (-OH) and a nitrogen atom or an oxygen atom in the antimicrobial polymer may be formed. Accordingly, it is possible to prevent the antimicrobial polymer from leaking out of the antimicrobial coating layer formed by the coating composition.
- the hydrophilic antibacterial polymer is easily dissolved by water even after the coating composition is dried, the formed coating layer can be easily separated from the substrate if necessary after the antibacterial action is completed.
- the hydrophilic polymer may be one or more selected from polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyvinylpyrrolidone (PVP) and carboxymethyl cellulose (CMC).
- PVA polyvinyl alcohol
- PEG polyethylene glycol
- PVP polyvinylpyrrolidone
- CMC carboxymethyl cellulose
- the hydrophilic polymer preferably has a weight average molecular weight (Mw) of 100,000 to 500,000 g/mol.
- Mw weight average molecular weight
- the weight average molecular weight (Mw, g / mol) of the hydrophilic polymer may be 100,000 or more, 150,000 or more, 180,000 or more, or 200,000 or more, and 500,000 or less, 400,000 or less, 300,000 or less, or 250,000 or less.
- the weight average molecular weight of the hydrophilic polymer can be measured in the same way as the antimicrobial polymer to be described later.
- the hydrophilic polymer may be included in an amount of 7 wt% to 20 wt% based on the total weight of the antimicrobial polymer composition. If the content of the hydrophilic polymer is too low, there may be a problem that the coating solution cannot be applied because a sufficient viscosity cannot be formed. It may be difficult to apply the coating solution.
- the hydrophilic polymer is 7 wt% or more, 8 wt% or more, 9 wt% or more, or 10 wt% or more, based on the total weight of the antimicrobial polymer composition, and 20 wt% or less, 19 wt% or less, 18 wt% % or less, 17 wt% or less, 16 wt% or less, 15 wt% or less, 14 wt% or less, 13 wt% or less, or 12 wt% or less.
- the antimicrobial polymer includes a repeating unit represented by the formula (1).
- the antimicrobial polymer includes a guanidine-derived structure to form an electrostatic interaction with the cell membrane of the phospholipid bilayer of Gram-negative bacteria.
- the cell membrane is induced, and the growth rate of the gram-negative bacteria may be slowed down. Accordingly, it is possible to exhibit an excellent antibacterial effect against a general strain having a phospholipid dual structure, that is, Gram-negative bacteria, and also exhibit a deodorizing effect when the strain generates a secondary odor.
- the antimicrobial polymer is included in the antimicrobial polymer composition in an amount of 1 part by weight or more and less than 50 parts by weight based on 100 parts by weight of the hydrophilic polymer.
- the antimicrobial polymer is included in less than 1 part by weight relative to 100 parts by weight of the hydrophilic polymer, it is difficult to exhibit sufficient antibacterial and deodorant effects, and when the antimicrobial polymer is included in 50 parts by weight or more relative to 100 parts by weight of the hydrophilic polymer, malodorous component
- the microorganisms that generate it can also pose a risk to the normal cells of the user, so it is not suitable in terms of human stability, and the viscosity of the composition increases, making it difficult to easily apply it on a substrate with a uniform thickness.
- the antimicrobial polymer is 1 part by weight or more, 1.5 parts by weight or more, or 2 parts by weight or more, and less than 50 parts by weight, 40 parts by weight or less, 30 parts by weight or less relative to 100 parts by weight of the hydrophilic polymer in the antimicrobial polymer composition , 25 parts by weight or less, 20 parts by weight or less, or 10 parts by weight or less.
- the number of repeating units represented by Chemical Formula 1 included in the antimicrobial polymer must be at least 10, that is, n, which means the number of the repeating units, must be 10 or more, and a maximum of 10,000 or less, that is, n is 10,000 or less.
- n is less than 10 it has an antibacterial monomer or oligomer form, not an antibacterial polymer, and there is a problem that it can be easily eluted from the coating layer formed after drying. Inappropriate.
- n may be 10 or more, 50 or more, 100 or more, 120 or more, 150 or more, 200 or more, 300 or more, or 443 or more, and 5,000 or less, 3,000 or less, 2,000 or less, 1,500 or less, 1,000 or less, or 500 or less. have.
- R 1 to R 3 are all hydrogen
- R 4 to R 7 may each independently be hydrogen, methyl, or phenyl.
- R 4 to R 7 may be the same as each other.
- repeating unit represented by Formula 1 may be represented by Formula 1-1 below:
- n is an integer from 10 to 10,000.
- the repeating unit represented by Formula 1 may be derived from a monomer compound represented by Formula 1' below.
- the antimicrobial polymer is a homopolymer comprising only the repeating unit represented by the formula (1), a copolymer comprising a repeating unit derived from the repeating unit represented by the formula (1) and a monomer having at least one ethylenically unsaturated group (copolymer), or a mixture thereof.
- the monomer having at least one ethylenically unsaturated group is an acrylic acid-based monomer, an alkyl (meth)acrylate-based monomer, an acrylamide-based monomer, a halogenated vinyl monomer, a vinyl alkylate-based monomer, an alkenyl cyanide monomer, and an aromatic vinyl-based monomer. It may be at least one selected from monomers.
- the acrylic acid-based monomer may be acrylic acid or methacrylic acid.
- alkyl (meth) acrylate-based monomer is methyl acrylate, ethyl acrylate, propyl acrylate, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, n-amyl acrylate, isoamyl acrylate , n-ethylhexyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, n -Amyl methacrylate, isoamyl methacrylate, n-hexyl methacrylate, n-ethylhexyl methacrylate, 2-ethylhexyl methacrylate, lauryl acrylate, ceryl acrylate, stearyl
- the acrylamide-based monomer is (meth) acrylamide, N-isopropyl acrylamide, N-hydroxymethyl (meth) acrylamide, N- (2-hydroxyethyl) (meth) acrylamide, N- ( 3-hydroxypropyl) (meth) acrylamide, N- (4-hydroxybutyl) (meth) acrylamide, N- (5-hydroxypentyl) (meth) acrylamide, N- (6-hydroxyhexyl) )(meth)acrylamide, N-(7-hydroxyheptyl)(meth)acrylamide, or N-(8-hydroxyoctyl)(meth)acrylamide.
- halogenated vinyl monomer may be vinyl chloride, vinyl bromide, vinylidene chloride (vinylidene chloride), or tetrafluoroethylene.
- the vinyl alkylate-based monomer is a vinyl alkylate such as vinyl acetate (CH 2 CH-OC(O)R, where R is an alkyl having 1 to 10 carbon atoms), vinyl pyrrolidone, vinyl carbazole, or vinyl alkyl It may be an ether (CH 2 CH-OR, wherein R is alkyl having 1 to 10 carbon atoms).
- the alkenyl cyanide monomer is a monomer containing both an ethylenically unsaturated group and a nitrile group in a molecule, and for example, acrylonitrile, methacrylonitrile, allyl cyanide, etc. may be mentioned.
- the aromatic vinyl-based monomer is styrene, ⁇ -methylstyrene, ⁇ -methylstyrene, pt-butylstyrene, chlorostyrene, vinylbenzoic acid, methyl vinylbenzoate, vinylnaphthalene, chloromethylstyrene, hydroxymethylstyrene, or divinyl. It may be benzene, preferably styrene.
- the repeating unit derived from the monomer having at least one ethylenically unsaturated group may be represented by the following Chemical Formula 2 or 3:
- R' 1 to R' 3 are each independently hydrogen or methyl
- k is an integer from 1 to 10,
- n 1 to 10,000.
- m which means the number of repeating units represented by Formula 2 or 3, may be 1 or more, more specifically, 1 to 2,000.
- the carboxyl group (-COOH) which is the functional group of Formula 2
- m may be 10 or more, 100 or more, 500 or more, or 1,000 or more, and 5,000 or less, 2,000 or less, 1,800 or less, 1,500 or less, or 1,200 or less.
- the repeating unit represented by Formula 2 may be represented by Formula 2-1, Formula 3-1, or Formula 3-2:
- n 1 to 10,000.
- the repeating unit represented by Formula 2 may be derived from a monomer compound represented by Formula 2' below.
- repeating unit represented by Formula 3 may be derived from a monomer compound represented by Formula 3' below.
- the antimicrobial polymer according to an embodiment includes a homopolymer including only the repeating unit represented by Chemical Formula 1, the repeating unit represented by Chemical Formula 1, and the repeating unit represented by the following Chemical Formula 2 It may be a copolymer, or a mixture thereof.
- the antimicrobial polymer when the antimicrobial polymer is a homopolymer, the polymer has a guanidinyl group at the terminal, that is, (here, * means a bonding position with a neighboring atom)
- the structure may be a linear polymer in which only the repeating units represented by the following Chemical Formula 1-1 are continuously connected:
- n is an integer from 10 to 10,000.
- the linear polymer in which the repeating units represented by Formula 1-1 are continuously linked is prepared by polymerization of guanidine acrylate (GA) represented by Formula 1" below, and a separate end-capping agent is used during polymerization. By not adding , the end of the polymer can be made into a guanidinyl group.
- G guanidine acrylate
- the antimicrobial properties of the antimicrobial polymer composition can be further improved.
- the antimicrobial polymer when the antimicrobial polymer is a copolymer or includes a copolymer, the copolymer has a structure in which the repeating unit represented by Formula 1 and the repeating unit derived from the monomer having at least one ethylenically unsaturated group are linearly connected.
- the antimicrobial polymer may be a block copolymer in which blocks of the repeating units are connected by covalent bonds, or may be a random copolymer in which the repeating units are randomly arranged.
- the antimicrobial polymer when the antimicrobial polymer is a copolymer or includes a copolymer, the copolymer may be represented by Formula 4 or 5 below.
- the antimicrobial polymer when the antimicrobial polymer is the above-mentioned copolymer or includes the above-mentioned copolymer, the repeating unit represented by Formula 1 in the copolymer and the repeating unit derived from the monomer having at least one ethylenically unsaturated group
- the molar ratio may be from 1:99 to 99:1.
- the antimicrobial polymer when the antimicrobial polymer is or includes a copolymer represented by Formula 4 or 5, (repeating unit represented by Formula 1) and (repeating unit represented by Formula 2 or 3 above) in the copolymer ) may have a molar ratio (ie, n:m) of 1:99 to 99:1. More specifically, n:m may be 1:10 or more, 5:95 or more, 10:90 or more, or 50:50 or more, and 95:5 or less, or 91:9 or less.
- the molar ratio of the repeating unit represented by Formula 1 and the repeating unit represented by Formula 2 or 3 is the reaction mole of the monomer represented by Formula 1' and/or the monomer represented by Formula 2' or Formula 3'. It can be adjusted by adjusting the ratio.
- the antimicrobial polymer when the antimicrobial polymer is a copolymer, the polymer may be a linear block or random polymer represented by the following Chemical Formula 4-1 with the guanidinyl group or carboxyl group at the end:
- n+m 10 to 10,000
- n:m is 1:99 to 99:1.
- the antimicrobial polymer when the antimicrobial polymer is a copolymer, the polymer may be a linear block or random polymer represented by the following Chemical Formula 5-1, while the end of the polymer is the guanidinyl group or N-hydroxymethylacrylamide group.
- Chemical Formula 5-1 the end of the polymer is the guanidinyl group or N-hydroxymethylacrylamide group.
- n+m 10 to 10,000
- n:m is 1:99 to 99:1.
- n may be 50 or more, 100, or 120 or more, 2,000 or less, 1,500 or less, or 1,000 or less, or 500 or less
- m is 10 or more, 100 or more.
- n:m may be 1:10 or more, 5:95 or more, 10:90 or more, or 50:50 or more, and 95:5 or less, or 91:9 or less.
- the antimicrobial polymer is a copolymer or includes a copolymer
- the copolymer is prepared by copolymerization of each monomer, and by not adding a separate end capping agent during polymerization, the end of the polymer is a guanidinyl group can be included.
- the antimicrobial polymer may be a linear polymer. Specifically, it may have the form of a one-dimensional linear polymer having a structure in which the above-described repeating units are arranged in a long chain. This is distinguished from a network polymer having a three-dimensional network structure in which repeating units are connected by a separately added crosslinking agent.
- the molecular weight of the polymer can be easily controlled and the viscosity of the antimicrobial polymer can be easily controlled.
- the antimicrobial polymer may have a weight average molecular weight (Mw) of 5,000 to 1,000,000 g/mol.
- Mw weight average molecular weight
- the weight average molecular weight of the antimicrobial polymer is less than 5,000 g/mol, it exists in the form of a monomer rather than a polymer and can be easily eluted.
- the molecular weight exceeds 1,000,000 g/mol, the molecular weight increases and the viscosity is high, so that application may not be possible or it may not be dissolved in water.
- the weight average molecular weight of the antimicrobial polymer is 5,000 or more, 8,000 or more, 10,000 or more, 15,000 or more, 20,000 or more, 30,000 or more, 40,000 or more, 50,000 or more, or 100,000 or more, and 500,000 or less, 400,000 or less, 300,000 or less , 200,000 or less, 150,000 or less, or 115,000 or less.
- the weight average molecular weight (Mw) of the antimicrobial polymer can be measured using gel permeation chromatography (GPC) using polystyrene (PS) as a standard sample for calibration. More specifically, after preparing a sample of about 1000 ppm by diluting 200 mg of the antimicrobial polymer in 200 ml of N,N-Dimethylformamide (DMF) solvent, using an Agilent 1200 series GPC instrument, the weight through the RI detector at 1 ml/min Flow The average molecular weight can be measured. In this case, the molecular weight of the sample can be calculated based on a calibration curve using 8 standard PS standards.
- GPC gel permeation chromatography
- PS polystyrene
- the solvent included in the antimicrobial polymer composition includes water. More specifically, the solvent may further include ethanol, acetone, or isopropyl alcohol.
- the solvent included in the antimicrobial polymer composition may be water or a mixture of water and ethanol.
- the solvent may be used in an amount (ml/g) of 4 to 13 times the volume of the hydrophilic polymer. It may be possible to realize a composition suitable for coating when the above-mentioned amount of solvent is used.
- the antimicrobial polymer composition may further include 1 to 10 parts by weight of glycerol based on 100 parts by weight of the hydrophilic polymer.
- glycerol is a compound having three hydroxyl groups in the molecule, and may be included in the antimicrobial polymer composition to improve the flexibility of the film formed after drying the coating solution.
- the antimicrobial polymer composition is 1 part by weight or more, 2 parts by weight or more, 3 parts by weight or more, or 4 parts by weight or more, and 10 parts by weight or less, 9 parts by weight or less, 8 parts by weight compared to 100 parts by weight of the hydrophilic polymer Below, 7 parts by weight or less, or 6 parts by weight or less of glycerol may be further included.
- the antimicrobial polymer composition has a solid content of 10 to 20% by weight.
- solid content refers to components excluding volatile components in the composition. Therefore, the content of solids present in the antimicrobial polymer composition means excluding the content of the solvent, which is a volatile component, from the total weight of the antimicrobial polymer composition. It means the sum of the weight of the polymer and the antibacterial polymer. At this time, when the solid content of the antimicrobial polymer composition is too low, the viscosity of the solution is very low and can flow like water, making coating impossible.
- the content of the solid content of the antimicrobial polymer composition is 10 wt% or more, or 10.2 wt% or more, or 11 wt% or more, and 18 wt% or less, 16 wt% or less, 15 wt% or less, or 12 wt% may be below.
- the antibacterial polymer composition has a viscosity under constant temperature / constant humidity (23 ° C., 50% relative humidity) conditions of 1,000 cP to 20,000 cP when measured at 200 rpm in a V-75 spindle with Brookfield DV2T LV TJ0 model equipment.
- constant temperature / constant humidity 23 ° C., 50% relative humidity
- the viscosity of the antimicrobial polymer composition is 1,000 cP or more, 1,100 cP or more, 1,200 cP or more, 1,211 cP or more, 2,020 cP or more, or 3,340 cP or more, and 20,000 cP or less, or 18,000 cP or less when measured by the method described above. , or 15,000 cP or less, 12,000 cP or less, or 10,000 cP or less, 8,000 cP or less, 6,000 cP or less, 5,000 cP or less, 4,318 cP or less, 4,000 cP or less, or 3,884 cP or less.
- the antimicrobial polymer composition according to an embodiment is the antimicrobial polymer composition according to an embodiment
- a solvent containing water in an amount (ml/g) of 4 to 13 times the weight of the hydrophilic polymer 1 part by weight or more and less than 50 parts by weight relative to 100 parts by weight of the hydrophilic polymer; And optionally, 1 to 10 parts by weight of glycerol based on 100 parts by weight of the hydrophilic polymer is prepared by dissolving in a solvent such that the final solid content is 10 to 20% by weight.
- the process of dissolving each component in the solvent may be performed by stirring at a temperature of about 45° C. to 60° C. for 60 minutes to 4 hours using a commonly known stirrer.
- the antimicrobial polymer composition may exhibit an excellent antibacterial effect against microorganisms, particularly Gram-negative bacteria.
- the Gram-negative bacteria may be at least one selected from Proteus mirabilis, Escherichia coli, Salmonella typhi, Pseudomonas aeruginosa, and Vibrio cholerae.
- the antimicrobial polymer composition may exhibit antibacterial properties against Proteus mirabilis, which generates a secondary odor through ammonia generation.
- the meaning that the antimicrobial polymer composition exhibits antibacterial properties means that the coating layer formed by drying the antimicrobial polymer composition is coated on a substrate, that is, formed by removing the solvent from the coating composition, shows antibacterial properties.
- Proteus mirabilis is a Gram-negative bacilli, facultative anaerobic or aerobic bacteria, distributed in various environments, and can infect the respiratory tract or skin of humans and animals and cause urinary system-related diseases. .
- Proteus mirabilis can cause odor as it alkalizes urine, allowing ammonia to be excreted.
- the antibacterial evaluation of the antibacterial polymer composition against Proteus mirabilis can be measured using absorbance, and the measured accordingly, the antibacterial Proteus mummy of the antimicrobial polymer composition calculated by Equation 1
- the rate of inhibition of bilis bacterial growth may be 70% or more, 72% or more, 80% or more, 84% or more, 90% or more, 92% or more, 95% or more, 96% or more, or 98% or more.
- a s is the absorbance at one Proteus Mira Billy's (Proteus mirabilis) input sample to the absorbance of experimental culture medium 600nm wavelength
- a 0 is Proteus Mira Billy's (Proteus mirabilis do not supply the sample to the absorbance of the control group ) refers to the absorbance at 600 nm wavelength of the pure culture medium.
- the antimicrobial polymer composition includes i) a hydrophilic polymer and an antimicrobial polymer of a specific structure at the same time, ii) at this time, includes the antimicrobial polymer in a specific content compared to the hydrophilic polymer, iii) the content of solids in the composition It can be easily applied with a uniform thickness on a substrate by including a certain level of do.
- the antibacterial polymer composition is water-based, and can be usefully used for the purpose of antibacterial and sterilization in various fields such as food, medicine, pesticide and household goods.
- the antimicrobial polymer composition may be used in combination with other liquid compositions.
- the antimicrobial polymer composition may be used for indoor/outdoor paint compositions, floor finishing materials, agrochemical compositions, cleaning agents, laundry detergents, or It can be blended into compositions for specific uses, such as antifogging liquids, to exhibit antibacterial properties.
- the antibacterial polymer composition may further exhibit an antifogging function, an anti-reflection function, a self-cleaning function, an infrared blocking function, an anti-condensation function, and the like, in addition to the antibacterial property.
- the antimicrobial polymer included in the antimicrobial polymer composition is a copolymer or includes a copolymer
- by changing the type of repeating unit additionally included in addition to the repeating unit represented by Formula 1, additionally provided in addition to antibacterial properties may have the necessary functions.
- an acrylamide group may exhibit anti-fogging function in addition to antibacterial properties.
- one or more substrate and a coating layer provided on at least one surface on the substrate, wherein the coating layer is provided with an antimicrobial article formed by the antimicrobial polymer composition described above.
- the substrate may include a polymer film such as polyethylene (PE), polypropylene (PP), polystyrene (PS), polyamide (PA), polyimide (PI), polyethylene terephthalate (PET), polyvinyl chloride (PVC), etc.; textile; glass; plastic foams such as urethane foam and styrofoam; solid wood; plywood; It may be a metal substrate, but is not limited thereto.
- PE polyethylene
- PP polypropylene
- PS polystyrene
- PA polyamide
- PI polyimide
- PET polyethylene terephthalate
- PVC polyvinyl chloride
- textile glass
- plastic foams such as urethane foam and styrofoam
- solid wood plywood
- It may be a metal substrate, but is not limited thereto.
- antibacterial article is not limited to the type of various household chemical articles, medical articles, automobile parts, building materials, etc. that require antibacterial properties.
- the antimicrobial article may be at least one selected from freshness maintenance materials, fabric products, agricultural films, various office supplies, various packaging materials, and medical supplies.
- packaging materials such as food packaging materials, vegetable packaging materials, grain packaging materials, fruit packaging materials, meat packaging materials, aquatic products packaging materials, processed food packaging materials, vegetables, grains, fruits, meat, aquatic products, processed foods, etc. materials for maintaining freshness, such as containers of tray mats for food; Table mats, tablecloths, carpets. fabric products such as seat covers for seats; agricultural film; Mask; office supplies such as tapes, adhesive tapes, masking tapes, and masking films;
- Various packaging materials such as flower packaging materials, plastic bags, easy-open packaging bags, shopping bags, standing bags, transparent packaging boxes, automatic packaging films, electronic parts packaging materials, mechanical parts packaging materials; Medical films, medical tapes, medical supplies such as cell culture packs, and the like.
- the coating layer is, for example, 10 ⁇ m or more, 20 ⁇ m or more, 50 ⁇ m or more, 80 ⁇ m or more, 100 ⁇ m or more, or 150 ⁇ m or more, and 1 mm or less, 800 ⁇ m or less, 600 ⁇ m or less, 500 ⁇ m or less, It may be provided with a thickness of 300 ⁇ m or less, 250 ⁇ m or less, or 200 ⁇ m or less, and this coating layer is 60 minutes to 240 at a temperature of 40° C. to 80° C. after applying the antimicrobial polymer composition to at least one surface on the substrate By drying for minutes, it can be formed by thin film coating.
- the coating layer may be separable from the substrate if necessary. More specifically, the coating layer may maintain the shape of the film after drying is completed. Accordingly, when a release-treated PET film or the like is used as a substrate, the coating layer may be separated from the substrate. This is possible because the hydrophilic polymer of the antimicrobial polymer composition described above maintains the shape of the film.
- the prepared polymer PGA was a single polymer composed of the above-described repeating units while having a guanidinyl group at the end, and the weight average molecular weight of the single polymer was 50,000 g/mol, where n was 443.
- the weight average molecular weight of the polymer was measured using GPC (Agilent 1200 series GPC), and was measured by dissolving the polymer in DMF.
- an antimicrobial polymer PAA-co-PGA having the above structure was prepared in the same manner as in Preparation Example 1.
- the prepared polymer PAA-co-PGA is a copolymer composed of the above-described repeating unit while randomly positioned at the ends of a guanidinyl group and a carboxyl group, and the weight average molecular weight of the copolymer was 100,000 g/mol, where n was 120 and m was 1,200.
- the weight average molecular weight of the polymer was measured using GPC (Agilent 1200 series GPC), and was measured by dissolving the polymer in DMF.
- N-hydroxymethylacrylamide:guanidine acrylate was added in a molar ratio of 1:1 by 50 parts by weight based on 100 parts by weight of water, and then sodium persulfate was added by 2 mol% compared to guanidine acrylate and stirred. .
- the reaction was carried out at 80° C. for 6 hours so that polymerization could proceed well, and after completion of the reaction, the solution was precipitated and dried under vacuum to obtain a solid polymer PHMA-co-PGA having the following structure.
- an antimicrobial polymer PHMA-co-PGA having the above structure was prepared.
- the prepared polymer PHMA-co-PGA is a copolymer composed of the above-described repeating unit while randomly positioned at the end of a guanidinyl group and a carboxyl group, and the weight average molecular weight of the copolymer was 115,000 g/mol, where n was 500 and m was 500.
- the weight average molecular weight of the polymer was measured using GPC (Agilent 1200 series GPC) and was measured by dissolving the polymer in DMF.
- PVA polyvinyl alcohol
- Mw weight average molecular weight
- PGA PGA prepared in Preparation Example 1 as an antibacterial polymer 100 parts by weight of the hydrophilic polymer 2 parts by weight compared to that, put into water at a content adjusted to have a final solid content of 10.2% by weight at 60° C., and a magnetic stirrer (Hei-Tec, manufactured by heidolph-instruments) so that the polymers are sufficiently dissolved.
- a magnetic stirrer Hei-Tec, manufactured by heidolph-instruments
- the viscosity of the prepared composition at constant temperature/constant humidity was 1,211 cP when measured at 200 rpm on a V-75 spindle with Brookfield DV2T LV TJ0 model equipment.
- a polymer composition was prepared.
- the viscosity of the prepared composition under constant temperature / constant humidity (23 ° C., 50% relative humidity) conditions was 2,020 cP when measured at 200 rpm on a V-75 spindle with Brookfield DV2T LV TJ0 model equipment (manufactured by Brookfield).
- the antimicrobial polymer composition (solids content: 11% by weight) was prepared.
- the viscosity of the prepared composition at constant temperature/constant humidity was 3,340 cP when measured at 200 rpm on a V-75 spindle with Brookfield DV2T LV TJ0 model equipment.
- PVA polyvinyl alcohol
- Mw weight average molecular weight
- PHMA-co-PGA PHMA-co-PGA prepared in Preparation Example 3 as an antibacterial polymer to the hydrophilicity 10 parts by weight based on 100 parts by weight of the polymer
- a magnetic stirrer Hei-Tec, manufactured by heidolph-instruments
- the viscosity of the prepared composition at constant temperature/constant humidity was 3,884 cP when measured at 200 rpm on a V-75 spindle with Brookfield DV2T LV TJ0 model equipment.
- PVA polyvinyl alcohol
- Mw weight average molecular weight
- PGA prepared in Preparation Example 1 as an antibacterial polymer
- 10 parts by weight of the hydrophilic polymer Compared with 10 parts by weight and the PAA-co-PGA prepared in Preparation Example 2, 10 parts by weight based on 100 parts by weight of the hydrophilic polymer, and the content of the final solid content at 60 ° C. , by mixing for 6 hours with a magnetic stirrer (Hei-Tec, manufactured by heidolph-instruments) so that the polymers were sufficiently dissolved, an antibacterial polymer composition was prepared.
- a magnetic stirrer Hei-Tec, manufactured by heidolph-instruments
- the viscosity of the prepared composition under constant temperature/constant humidity was 4,318 cP when measured at 200 rpm on a V-75 spindle with Brookfield DV2T LV TJ0 model equipment.
- a polymer coating composition (solid content: 10 wt%) was prepared in the same manner as in Example 1, except that the antimicrobial polymer PGA in Example 1 was not used.
- the viscosity of the prepared composition at constant temperature/constant humidity was 1,134 cP when measured at 200 rpm on a V-75 spindle with Brookfield DV2T LV TJ0 model equipment.
- a polymer coating composition was prepared in the same manner as in Example 1, except that the antibacterial polymer PGA in Example 1 was not used, and the water content was adjusted so that the final solid content was 20% by weight.
- the viscosity of the prepared composition at constant temperature / constant humidity was 35,920 cP when measured at 200 rpm on a V-75 spindle with Brookfield DV2T LV TJ0 model equipment.
- the content of the antimicrobial polymer PGA in Example 1 was 50 parts by weight based on 100 parts by weight of PVA, except that the content of water was adjusted so that the final solid content was 10.2% by weight as in Example 1,
- Preparation Example A polymer coating composition was prepared in the same manner as in 1.
- the viscosity of the prepared composition at constant temperature / constant humidity was 247 cP when measured at 200 rpm on a V-75 spindle with Brookfield DV2T LV TJ0 model equipment.
- a low molecular weight antibacterial polymer LM-PGA of a single polymer having a weight average molecular weight of 1,000 g/mol and n of 9 was prepared in the same manner as in Preparation Example 1.
- An antimicrobial polymer composition (solid content: 10.2 wt%) was prepared in the same manner as in Example 1, except that the low molecular weight antimicrobial polymer LM-PGA prepared above was used instead of the antimicrobial polymer PGA in Example 1.
- the viscosity of the prepared composition at constant temperature / constant humidity was 1,136 cP when measured at 200 rpm on a V-75 spindle with Brookfield DV2T LV TJ0 model equipment.
- each antimicrobial film having a coating layer formed on one side of the substrate was prepared.
- An antibacterial test was performed on each of the antimicrobial films prepared above. Specifically, as an antibacterial test, the bacterial growth inhibition rate (%) was measured in the following manner, and the number of bacteria was confirmed using the antibacterial evaluation method of JIS Z 2801.
- a s is the absorbance of from Proteus Mira Billy's 600 nm wavelengths (Proteus mirabilis) culture input sample to the absorbance of the test group
- a 0 is Proteus not input sample to the absorbance of the control group
- Mira Billy's Proteus mirabilis refers to the absorbance at 600 nm wavelength of pure culture medium.
- the antimicrobial film when the antimicrobial film is prepared using the antimicrobial polymer composition of the example, it is easily applied to a substrate with a uniform thickness, unlike the antimicrobial films of Comparative Examples 1 and 2 that do not contain the antimicrobial polymer. 70% or more, 72% or more, 80% or more, 84% or more, 90% or more, 92% or more, 95% or more, or 98% of the coating layer formed at the same time as possible with respect to the gram-negative bacteria Proteus mirabilis It can be seen that the above excellent bacterial growth inhibition rate is exhibited.
- the antimicrobial film of Comparative Example 3 prepared using a composition containing an antimicrobial polymer in a specific amount or more compared to the hydrophilic polymer, uniform application of the composition on the substrate was substantially impossible, so the rate of inhibition of bacterial growth and the number of bacteria could not be measured. .
- the composition of Comparative Example 3 has the same solid content as that of Example 1, the content of the antimicrobial polymer relative to the hydrophilic polymer weight is too high, and the content of the hydrophilic polymer in the composition is lowered. is judged as
- Example 1 Comparative Example 4 hydrophilic polymer kinds PVA PVA content 1) 10 10 antibacterial polymer kinds PGA LM-PGA content 2) 2 2 solid content (weight%) 10.2 10.2 Viscosity of the composition (cP) 1,211 1,136 Change in the rate of inhibition of bacterial growth (%) 2.4 68.4
- the antibacterial film in which the coating layer is formed by the antimicrobial coating composition of Example 1 compared to the antibacterial film in which the coating layer is formed by the antibacterial coating composition of Comparative Example 4, is the antibacterial agent even under high temperature conditions. It can be seen that the antibacterial properties are not deteriorated.
- the change in the rate of inhibition of bacterial growth calculated by Equation 2 is 30% or less, or 20% or less, or 10% or less, or 8 or less, or 6% or less, or 4% or less, or 3% or less, or 2.4 % or less, when using the antimicrobial coating composition of Example 1 using a high molecular weight antibacterial polymer containing a specific number or more of the repeating unit represented by Formula 1, Comparative Example 4 using a low molecular weight antibacterial polymer Contrary to this, it was confirmed that the antibacterial agent bleeding phenomenon was prevented even with the lapse of time, so that it was possible to manufacture an antibacterial layer that continuously exhibits antibacterial properties.
- the antimicrobial polymer composition prepared in Examples 1 and 4, respectively, was coated on a glass plate to a thickness of 100 ⁇ m using a bar coater, dried at 80° C. for 240 minutes, and a glass plate coated with an antimicrobial polymer composition on one side. prepared.
- ACS Appl. Mater. Antifogging-related experiments were conducted by referring to Interfaces 2020, 12, 10, 12305-12316. To briefly summarize the experimental method, after preparing a water bath heated to 80 °C, a glass plate coated with an antimicrobial polymer composition was placed on one side at a position of 5 cm above the water surface and maintained for 5 seconds to observe whether antifogging performance was developed.
- FIG. 1 a photograph comparing the antifogging test results of the two glass plates coated with the antimicrobial polymer composition prepared in Example 1 and the antimicrobial polymer composition prepared in Example 4, respectively, is shown in FIG. 1 .
- the antifogging function was expressed when the antimicrobial polymer composition prepared in Example 4 was used.
- the PHMA-co-PGA prepared in Preparation Example 4 which is the copolymer used in Example 4, further contains a repeating unit derived from N-hydroxymethylacrylamide, it is possible to increase the hydrophilicity of the composition, and thus the composition This is thought to be due to the rapid absorption and diffusion of these water molecules.
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Abstract
Description
| 실시예 1 |
실시예 2 |
실시예 3 |
실시예 4 |
실시예 5 |
비교예 1 |
비교예 2 |
비교예 3 |
||
| 친수성 고분자 | 종류 | PVA | PVA | PVA | PVA | PVA | PVA | PVA | PVA |
| 함량1) | 10 | 10 | 10 | 10 | 10 | 10 | 20 | 6.8 | |
| 항균성 고분자 | 종류 | PGA | PGA | PAA-co-PGA | PHMA-co-PGA | PGA/ PAA-co- PGA |
- | - | PGA |
| 함량2) | 2 | 10 | 10 | 10 | 10/10 | - | - | 50 | |
| 고형분의 함량 (중량%) |
10.2 | 11 | 11 | 11 | 12 | 10 | 20 | 10.2 | |
| 조성물의 점도(cP) | 1,211 | 2,020 | 3,340 | 3,884 | 4,318 | 1,134 | 35,920 | 247 | |
| 균증식 억제율3)
(%) |
72 | 92 | 84 | 98 | 96 | 0 | 측정 불가 |
측정 불가 |
|
| 균 수4)
(CFU/ml) |
6.2x103 | 2.3x102 | 3.7x103 | 1.1x103 | 1.5x102 | 1.2x105 | |||
| 실시예 1 | 비교예 4 | ||
| 친수성 고분자 | 종류 | PVA | PVA |
| 함량1) | 10 | 10 | |
| 항균성 고분자 | 종류 | PGA | LM-PGA |
| 함량2) | 2 | 2 | |
| 고형분의 함량 (중량%) |
10.2 | 10.2 | |
| 조성물의 점도(cP) | 1,211 | 1,136 | |
| 균증식 억제율 변화량 (%) |
2.4 | 68.4 | |
Claims (21)
- 제1항에 있어서,상기 항균성 고분자 조성물은 물을 포함하는 용매를 추가로 포함하는,항균성 고분자 조성물.
- 제1항에 있어서,상기 친수성 고분자는, 폴리비닐알콜(PVA), 폴리에틸렌글리콜(PEG), 폴리비닐피롤리돈(PVP) 및 카르복시메틸 셀룰로오스(CMC) 중에서 선택되는 1종 이상인,항균성 고분자 조성물.
- 제1항에 있어서,상기 친수성 고분자는 상기 항균성 고분자 조성물 총 중량을 기준으로 7 중량% 내지 20 중량%로 포함되는,항균성 고분자 조성물.
- 제1항에 있어서,상기 항균성 고분자는 상기 화학식 1로 표시되는 반복단위만을 포함하는 단일중합체(homopolymer), 상기 화학식 1로 표시되는 반복단위 및 하나 이상의 에틸렌성 불포화기를 갖는 단량체로부터 유래되는 반복단위를 포함하는 공중합체(copolymer), 또는 이들의 혼합물인,항균성 고분자 조성물.
- 제6항에 있어서,상기 하나 이상의 에틸렌성 불포화기를 갖는 단량체는 아크릴산계 단량체, 알킬 (메타)아크릴레이트계 단량체, 아크릴아마이드계 단량체, 할로겐화 비닐 단량체, 비닐 알킬레이트계 단량체, 알케닐 시안화물 단량체 및 방향족 비닐계 단량체 중에서 선택되는 1종 이상인,항균성 고분자 조성물.
- 제6항에 있어서,상기 공중합체 내 상기 화학식 1로 표시되는 반복단위와 상기 하나 이상의 에틸렌성 불포화기를 갖는 단량체로부터 유래되는 반복단위의 몰 비는 1:99 내지 99:1인,항균성 고분자 조성물.
- 제1항에 있어서,상기 항균성 고분자는 선형 고분자인,항균성 고분자 조성물.
- 제1항에 있어서,상기 항균성 고분자는 중량평균분자량이 5,000 내지 1,000,000 g/mol인,항균성 고분자 조성물.
- 제2항에 있어서,상기 용매는 물이거나, 또는 물과 에탄올의 혼합물인,항균성 고분자 조성물.
- 제1항에 있어서,상기 친수성 고분자 100 중량부 대비 1 내지 10 중량부의 글리세롤을 더 포함하는,항균성 고분자 조성물.
- 제2항에 있어서,상기 항균성 고분자 조성물은 고형분의 함량이 10 내지 20 중량% 인,항균성 고분자 조성물.
- 제2항에 있어서,상기 항균성 고분자 조성물은 항온/항습(23 ℃, 50% 상대습도) 조건에서의 점도가 Brookfield DV2T LV TJ0 모델 장비로 V-75 spindle에서 200 rpm으로 측정 시 1,000 cP 내지 20,000 cP인,항균성 고분자 조성물.
- 제1항에 있어서,상기 항균성 고분자 조성물은 그람음성균(Gram-negative bacteria)에 대해 항균성을 나타내는,항균성 고분자 조성물.
- 제17항에 있어서,상기 그람음성균은 프로테우스 미라빌리스(Proteus mirabilis), 대장균(Escherichia coli), 티푸스균(Salmonella typhi), 녹농균(Pseudomonas aeruginosa) 및 콜레라균(Vibrio cholerae) 중에서 선택되는 1종 이상인,항균성 고분자 조성물.
- 하나 이상의 기재; 및상기 기재 상의 적어도 일면에 구비된 코팅층을 포함하고,상기 코팅층은 제1항 내지 제18항 중 어느 한 항에 따른 항균성 고분자 조성물에 의해 형성된 것인,항균성 물품.
- 제19항에 있어서,상기 코팅층은 상기 기재로부터 분리 가능한,항균성 물품.
- 제19항에 있어서,상기 항균성 물품은 선도 유지용 재료, 패브릭 제품, 농업용 필름, 각종 사무 용품, 각종 포장 재료 및 의료 용품 중에서 선택되는 1종 이상인,항균성 물품.
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| EP21813081.3A EP4063460B1 (en) | 2020-05-28 | 2021-05-28 | Antibacterial polymer composition |
| US17/789,943 US12410322B2 (en) | 2020-05-28 | 2021-05-28 | Antibacterial polymer composition |
| CN202180007409.4A CN114867795B (zh) | 2020-05-28 | 2021-05-28 | 抗菌聚合物组合物 |
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| KR1020210069014A KR102860680B1 (ko) | 2020-05-28 | 2021-05-28 | 항균성 고분자 조성물 |
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| JP2023508038A (ja) | 2023-02-28 |
| JP7408221B2 (ja) | 2024-01-05 |
| US20230092376A1 (en) | 2023-03-23 |
| US12410322B2 (en) | 2025-09-09 |
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