KR101862838B1 - Water-soluble Acrylic Adhesive Composition for Protection Film of Colored Steel Sheet and Manufacturing Method thereof - Google Patents
Water-soluble Acrylic Adhesive Composition for Protection Film of Colored Steel Sheet and Manufacturing Method thereof Download PDFInfo
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- KR101862838B1 KR101862838B1 KR1020160021898A KR20160021898A KR101862838B1 KR 101862838 B1 KR101862838 B1 KR 101862838B1 KR 1020160021898 A KR1020160021898 A KR 1020160021898A KR 20160021898 A KR20160021898 A KR 20160021898A KR 101862838 B1 KR101862838 B1 KR 101862838B1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives 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; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The present invention relates to a water-soluble pressure-sensitive adhesive for a protective sheet, and more particularly to an environmentally-friendly water-soluble acrylic pressure-sensitive adhesive composition used in the production of a protective sheet for protection of lead-
The composition of the present invention uses an alkylphenol-free emulsifier and is excellent in storage stability and paintability to a polyethylene sheet, and is free from residue, transfer and adhesive flow, and is environmentally friendly and harmless to the human body.
Description
The present invention relates to a water-soluble pressure-sensitive adhesive for a protective sheet, and more particularly, to an environmentally-friendly water-soluble acrylic pressure-sensitive adhesive composition used in the production of a protective sheet for protecting a long-
At present, the pressure-sensitive adhesive used for the protective sheet of the leading sheet color steel sheet is a solvent type and has a problem that the residual solvent which is volatile organic compounds is discharged into the air. In addition, there is a growing demand for water-soluble adhesive and technology development due to recent environmental regulations. Although a part of water-soluble acrylic pressure-sensitive adhesive is produced in Korea, there is a problem that storage stability is lower than that of a solvent-type pressure-sensitive adhesive.
On the other hand, Korean Patent Registration No. 0384039 discloses a water-soluble acrylic emulsion-type pressure-sensitive adhesive comprising an acrylic ester-based copolymer as a main component, but fails to sufficiently solve problems such as storage stability and generation of a pressure-sensitive adhesive flow.
Therefore, there is a need to develop a water-soluble acrylic pressure-sensitive adhesive for a protective sheet that is excellent in storage stability and painting workability and does not cause residue, transfer and adhesive flow, and is environmentally friendly and harmless to human body.
Accordingly, the present inventors have made efforts to develop a water-soluble acrylic pressure-sensitive adhesive for a protective sheet capable of solving the above-mentioned problems. As a result, the present inventors have found that a water-soluble acrylic pressure- It has been found that the water-soluble acrylic pressure-sensitive adhesive composition comprising an epoxy group-containing unsaturated monomer and an amide group-containing unsaturated monomer has excellent storage stability and coating workability, and does not cause residue, transfer and adhesive flow.
Accordingly, the present invention relates to a water-soluble acrylic pressure-sensitive adhesive composition comprising a seed emulsion containing an acrylate monomer, a reactive unsaturated acrylate monomer, a carboxyl group or an unsaturated monomer containing a hydroxyl group, an unsaturated monomer containing an epoxy group and an unsaturated monomer containing an amide group, And a manufacturing method thereof.
The present invention relates to a thermosetting resin composition comprising 50 to 1,000 parts by weight of a reactive unsaturated acrylate monomer, 0.1 to 30 parts by weight of a carboxyl group or a hydroxyl group-containing unsaturated monomer, 0.1 to 20 parts by weight of an epoxy group-containing unsaturated monomer per 100 parts by weight of a seed emulsion containing an acrylate- And 0.1 to 20 parts by weight of an amide group-containing unsaturated monomer.
The seed emulsion of the present invention is characterized by comprising 0.1 to 50 parts by weight of a carboxyl group or a hydroxyl group-containing unsaturated monomer per 100 parts by weight of a reactive unsaturated acrylate monomer, a styrene monomer or a mixture thereof.
The seed emulsion in the pressure-sensitive adhesive composition of the present invention is characterized by containing an anionic surfactant or 0.1 to 10 parts by weight of a nonionic surfactant having an HLB value of 10 or more.
Also, the pressure-sensitive adhesive composition of the present invention is characterized by comprising an anionic surfactant or 0.1 to 10 parts by weight of a nonionic surfactant having an HLB value of 10 or more.
In addition, the pressure-sensitive adhesive composition of the present invention is characterized in that the reactive unsaturated acrylate monomer is an alkyl acrylate having 1 to 18 carbon atoms, an alkyl methacrylate, a cycloalkyl acrylate, a cycloalkyl ethacrylate, an alkoxyalkyl acrylate, Hydroxyethyl acrylate, hydroxyalkyl methacrylate ester, acrylonitrile, methacrylonitrile, and trifluoroethyl methacrylate, and is characterized by its characteristics .
In addition, the pressure-sensitive adhesive composition of the present invention is a pressure-sensitive adhesive composition wherein the carboxyl group-containing unsaturated monomer is a mixture of at least one member selected from the group consisting of acrylic acid, methacrylic acid, vinylbenzene acid, itaconic acid, maleic acid, Hydroxypropyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate and 2-hydroxypropyl methacrylate It is characterized by.
Also, the pressure-sensitive adhesive composition of the present invention is characterized in that the epoxy group-containing unsaturated monomer is at least one selected from the group consisting of glycidyl (meth) acrylate, alpha methyl glycidyl (meth) acrylate, glycidyl allyl ether, oxocyclohexyl (meth) (Meth) acrylate, and 4-epoxycyclohexylmethyl (meth) acrylate.
In addition, the pressure-sensitive adhesive composition of the present invention is characterized in that the amide group-containing unsaturated monomer is at least one selected from the group consisting of (meth) acrylamide, diethylacrylamide, N-vinylpyrrolidone, N, N- (Meth) acrylamide, N, N'-methylenebisacrylamide, N, N-dimethylaminopropylacrylamide, N, N-dimethylaminopropylmethacrylamide, diacetone (meth) Acrylamide, or a mixture of two or more thereof.
In addition, the pressure-sensitive adhesive composition of the present invention may further comprise at least one selected from the group consisting of lauryl mercaptan, n-dodecyl mercaptan, t-dodecyl mercaptan, n-octyl mercaptan, glycidyl mercaptan, mercaptoacetic acid, 2-mercaptoethanol, -Ethylhexylthioglycolic acid, and 2,3-dimercapto-1-propanol, and a molecular weight regulator which is a mixture of two or more kinds selected from ethylhexylthioglycolic acid and 2,3-dimercapto-1-propanol.
Further, the pressure-sensitive adhesive composition of the present invention is characterized by further comprising at least one selected from the group consisting of a wetting agent, an antifoaming agent and an increasing agent.
The pressure-sensitive adhesive composition of the present invention is characterized in that its glass transition temperature (T g ) is in the range of -60 to 0 ° C and the pH is controlled in the range of 6 to 9.
On the other hand,
Polymerizing the pressure-sensitive adhesive composition to produce an acrylic emulsion;
Mixing the acrylic emulsion with a curing agent to prepare a coating composition; And
And coating the coating composition on the surface of the protective sheet.
The composition of the present invention uses an alkylphenol-free emulsifier and is excellent in storage stability and paintability to a polyethylene sheet, and is free from residue, transfer and adhesive flow, and is environmentally friendly and harmless to the human body.
In addition, the protective sheet coated with the pressure-sensitive adhesive composition of the present invention can be adhered to a polyester resin, a polyurethane resin and a fluorine resin which are mainly used for a paint for a color steel sheet, and is free from adhesive residues and adhesive transfer , And there is no oozing phenomenon due to heat.
Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described in detail below. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.
Hereinafter, a pressure-sensitive adhesive composition for a protective sheet according to a preferred embodiment of the present invention and a method for producing a protective sheet using the same will be described in detail.
The pressure-sensitive adhesive composition for a protective sheet for a protective sheet according to the present invention comprises 50 to 1,000 parts by weight of a reactive unsaturated acrylate monomer, 0.1 to 30 parts by weight of a carboxyl group or a hydroxyl group-containing unsaturated monomer, 100 to 500 parts by weight of an epoxy group- 0.1 to 20 parts by weight of a monomer and 0.1 to 20 parts by weight of an amide group-containing unsaturated monomer.
The seed emulsion may comprise 0.1 to 50 parts by weight of a carboxyl group or a hydroxyl group-containing unsaturated monomer based on 100 parts by weight of a reactive unsaturated acrylate monomer, a styrene monomer or a mixture thereof, preferably 1 to 40 parts by weight, And preferably 5 to 30 parts by weight.
Examples of the reactive unsaturated acrylate monomers include alkyl acrylates having 1 to 18 carbon atoms, alkyl methacrylates, cycloalkyl acrylates, cycloalkyl ethacrylates, alkoxyalkyl acrylates, alkoxyalkyl methacrylate esters, Hydroxyalkyl methacrylate esters, acrylonitrile, methacrylonitrile, and trifluoroethyl methacrylate may be used, but not limited thereto. No.
As the carboxyl group-containing unsaturated monomer, one or a mixture of two or more selected from acrylic acid, methacrylic acid, vinylbenzene acid, itaconic acid, maleic acid, fumaric acid, and anhydrides thereof may be used. As the hydroxyl group-containing unsaturated monomer, A mixture of one or more selected from the group consisting of hydroxyethyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate and 2-hydroxypropyl methacrylate can be used have.
The seed emulsion may contain 0.1 to 30 parts by weight, more preferably 1 to 25 parts by weight, and most preferably 5 to 20 parts by weight of an anionic surfactant or a nonionic surfactant having an HLB value of 10 or more Lt; / RTI > Examples of the anionic surfactant include sodium dodecylsulfate, sodium dodecylbenzenesulfonate, sodium octylsulfate, potassium dodecylsulfate, dioctylsodium sulfursuccinate, sodium stearate, potassium stearate, polyoxyethylene alkylphenyl ether Ammonium sulfate, and the like can be used. As the nonionic surfactant, polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene fatty acid ester, polyoxyethylene polypropylene copolymer and the like can be used, and unsaturated double bond A reactive surfactant for copolymerization with the polymer to be synthesized may be used.
The seed emulsion may further contain an initiator, which is preferably a water-soluble initiator. Specific examples thereof include persulfates of ammonium or alkali metals, hydrogen peroxide, peroxides, hydroperoxides, etc., And may be used in an amount of 0.01 to 10 parts by weight, preferably 0.1 to 5 parts by weight.
In the present invention, through the emulsion polymerization with the seed emulsion introduced, the stability of the reaction and the storage stability of the emulsion can be enhanced, and the particle size distribution of the emulsion can be more uniformly produced.
The pressure-sensitive adhesive composition for a protective sheet of the present invention comprises 50 to 1,000 parts by weight, more preferably 100 to 900 parts by weight, and most preferably 300 to 800 parts by weight, of a reactive unsaturated acrylate monomer per 100 parts by weight of the seed emulsion . Examples of the reactive unsaturated acrylate monomer include alkyl acrylates having 1 to 18 carbon atoms, alkyl methacrylates, cycloalkyl acrylates, cycloalkyl ethacrylates, alkoxyalkyl acrylates, alkoxyalkyl methacrylate esters, 8 hydroxyalkyl acrylate, hydroxyalkyl methacrylate ester, acrylonitrile, methacrylonitrile and trifluoroethyl methacrylate may be used, more preferably 2 -Ethylhexyl acrylate, butyl acrylate, methyl methacrylate and the like can be used. For example, 10 to 100 parts by weight of butyl acrylate and 0.1 to 30 parts by weight of methyl methacrylate may be mixed with 100 parts by weight of 2-ethylhexyl acrylate.
The pressure-sensitive adhesive composition for a protective sheet for a protective sheet of the present invention preferably comprises 0.1 to 30 parts by weight, more preferably 0.5 to 20 parts by weight, and most preferably 1 to 10 parts by weight of a carboxyl group or a hydroxyl group-containing unsaturated monomer per 100 parts by weight of the seed emulsion Moiety, which is included to reinforce the adhesion of the composition. As the carboxyl group-containing unsaturated monomer, one or a mixture of two or more selected from acrylic acid, methacrylic acid, vinylbenzene acid, itaconic acid, maleic acid, fumaric acid, and anhydrides thereof may be used. As the hydroxyl group-containing unsaturated monomer, A mixture of one or more selected from the group consisting of hydroxyethyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate and 2-hydroxypropyl methacrylate can be used have.
The pressure-sensitive adhesive composition for a protective sheet of the present invention preferably contains 0.1 to 20 parts by weight, more preferably 0.5 to 15 parts by weight, and most preferably 1 to 10 parts by weight of an epoxy group-containing unsaturated monomer per 100 parts by weight of the seed emulsion Which is included to reinforce the internal cohesion and cohesion of the composition. Examples of the epoxy group-containing unsaturated monomer include glycidyl (meth) acrylate, alpha methylglycidyl (meth) acrylate, glycidyl allyl ether, oxocyclohexyl (meth) acrylate and 3,4-epoxycyclohexylmethyl (Meth) acrylate may be used.
The pressure-sensitive adhesive composition for a protective sheet of the present invention contains 0.1 to 20 parts by weight, more preferably 0.5 to 10 parts by weight, and most preferably 1 to 5 parts by weight of an amide group-containing unsaturated monomer relative to 100 parts by weight of the seed emulsion , Which is included to reinforce the internal cohesion and cohesion of the composition. Examples of the amide group-containing unsaturated monomer include (meth) acrylamide, diethylacrylamide, N-vinylpyrrolidone, N, N-dimethyl (meth) acrylamide, N, (Meth) acrylamide and N, N'-methylenebisacrylamide, N, N-dimethylaminopropylacrylamide, N, N-dimethylaminopropylmethacrylamide, diacetone Or a mixture of two or more of them may be used.
The pressure-sensitive adhesive composition for a protective sheet for a protective sheet of the present invention may contain 0.1 to 10 parts by weight of an anionic surfactant or a nonionic surfactant having an HLB value of 10 or more based on 100 parts by weight of the seed emulsion, more preferably 0.5 to 8 parts by weight , And most preferably 1 to 5 parts by weight. If the surfactant is used in excess of the limited amount, the adhesive strength is lowered. If the surfactant is used in an amount less than the defined amount, the stability of the adhesive composition is deteriorated. The surfactant is used for initial particle formation in the polymerization reaction, size control of the generated particles, and stability of the particles. Examples of the anionic surfactant include sodium dodecyl sulfate, sodium dodecylbenzenesulfonate, sodium octyl sulfate, Sodium stearate, potassium stearate, polyoxyethylene alkylphenyl ether ammonium sulfate, and the like. Examples of the nonionic surfactant include polyoxyethylene alkyl ether, polyoxyethylene Ethylene alkyl phenyl ether, polyoxyethylene fatty acid ester, polyoxyethylene polypropylene copolymer, and the like.
In addition, the pressure-sensitive adhesive composition for a protective sheet of the present invention may further contain at least one selected from the group consisting of lauryl mercaptan, n-dodecyl mercaptan, t-dodecyl mercaptan, n-octyl mercaptan, glycidyl mercaptan, mercaptoacetic acid, Ethanol, 2-ethylhexyl thioglycolic acid, and 2,3-dimercapto-1-propanol. The amount of the molecular weight regulator may be 0.01 to 10 parts by weight, based on 100 parts by weight of the seed emulsion. 10 parts by weight, more preferably 0.1 to 1 part by weight.
The pressure-sensitive adhesive composition for a protective sheet of the present invention may contain an initiator, which is preferably a water-soluble initiator. Specific examples thereof include persulfates of ammonium or alkali metals, hydrogen peroxide, peroxides, hydroperoxides, They may be used singly or in combination of two or more. The initiator preferably includes 0.01 to 10 parts by weight, preferably 0.1 to 5 parts by weight, based on 100 parts by weight of the seed emulsion.
The pressure-sensitive adhesive composition for a protective sheet of the present invention may further comprise at least one member selected from the group consisting of a wetting agent, an antifoaming agent and an accelerator, and may further contain a dispersant, a UV stabilizer, and an antioxidant filler.
The pressure-sensitive adhesive composition for a protective sheet of the present invention comprising the above components may have a glass transition temperature (T g ) of from -60 to 0 캜, more preferably from -50 to -10 캜, -20 ° C. When the glass transition temperature is lower than -60 占 폚, the heat resistance is lowered, and when the adhesive tape adhering to the surface of the adherend is peeled off, residue and transfer are generated on the adherend surface.
In addition, the pressure-sensitive adhesive composition for a protective sheet of the present invention preferably has a pH of 6 to 9, and more preferably a pH of 7 to 8.5. In order to control the pH range, an alkaline substance may be included. An inorganic substance such as a hydroxide, a chloride, or a carbonate of a monovalent metal or a divalent metal, or an organic substance such as ammonia or an organic amine may be used.
Meanwhile, the method for producing a protective sheet of the present invention comprises the steps of: polymerizing the pressure-sensitive adhesive composition to prepare an acrylic emulsion; Mixing the acrylic emulsion with a curing agent to prepare a coating composition; And applying the coating composition to the surface of the protective sheet.
The pressure-sensitive adhesive composition is preferably polymerized at a temperature of 40 to 100 ° C., more preferably 60 to 90 ° C., in consideration of physical properties of the pressure-sensitive adhesive composition during polymerization of the acrylic emulsion.
The curing agent is preferably an aziridine compound, more preferably N, N'-toluene-2,4-bis (1-aziridine carboxamide), N, N'- From the group consisting of 4,4'-bis (1-aziridine carboxamide), triethylene melamine, bisisopropanoyl-1- (2-methylaziridine), tri-1-aziridinylphosphine oxide One or more compounds selected may be used. The content of the curing agent is preferably 0.01 to 10 phr, more preferably 0.1 to 5 phr, and most preferably 0.5 to 2 phr.
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to Examples of the present invention. However, the present invention is not limited thereto.
Example 1 Preparation of Acrylic Seed Emulsion
In a glass reactor equipped with a thermometer, a stirrer, a dropping funnel, a nitrogen inlet tube and a reflux condenser, 476 g of water, 10 g of sodium dodecylbenzene sulfonate as a surfactant and 2 g of alkyl ether sulfate were injected. The inside of the reactor was replaced with nitrogen while stirring the glass reactor, the temperature was raised to 80 ° C under a nitrogen atmosphere, and 0.32 g of sodium persulfate was injected.
Separately, 13 g of styrene monomer, 10 g of 2-ethylhexyl acrylate, 9 g of methyl methacrylate, 0.2 g of acrylic acid, and a monomer mixture were prepared, and the mixture was injected into the glass reactor for 40 minutes and maintained for 50 minutes.
Then, 0.75 g of sodium persulfate, which is the next initiator, was added. To the monomer mixture containing 120 g of the styrene monomer, 130 g of 2-ethylhexyl acrylate and 40 g of acrylic acid was added 6 g of sodium dodecylbenzenesulfonate as a surfactant, An emulsion composed of 0.75 g of sodium persulfate and 128.29 g of water was injected for 150 minutes and maintained for 60 minutes and then cooled to room temperature to prepare a seed emulsion.
The pH of the seed emulsion was found to be about 2.0.
Example 2: Acrylic Emulsion Produce
295 g of water and 80 g of the seed emulsion prepared in Example 1 were injected into a glass reactor equipped with a thermometer, a stirrer, a dropping funnel, a nitrogen inlet tube and a reflux condenser. The inside of the reactor was replaced with nitrogen while stirring the glass reactor, the temperature was adjusted to 7.0 with a caustic soda solution, the temperature was raised to 80 ° C under a nitrogen atmosphere, and 1.2 g of sodium persulfate was injected.
Separately, 150 g of butyl acrylate, 220 g of 2-ethylhexyl acrylate, 11.76 g of methyl methacrylate, 10 g of acrylic acid, 2 g of acrylamide, 6 g of glycidyl methacrylate and 0.3 g of n-dodecyl mercaptan To the mixed monomer mixture, an emulsion composed of 2 g of sodium alkyl ether sulfate, 0.5 g of sodium persulfate and 100 g of water was injected for 160 minutes and maintained for 60 minutes.
The solution was cooled to 74 캜, and 0.4 g of t-butyl hydroperoxide and 0.4 g of sodium formaldehyde sulfoxylate were poured therein. The solution was maintained for 20 minutes and cooled at room temperature to prepare an acrylic emulsion.
An aqueous ammonia solution was added to the acrylic emulsion to adjust the pH to 8.0.
Example 3: Preparation of polyethylene protective sheet
1 g of a wetting agent, 0.5 g of a non-silicone antifoam, and 0.2 g of a thickener were added to 100 g of the acrylic emulsion, and the mixture was stirred for 1 hour and then mixed with Crosslinker CX-100 as an aziridine curing agent to prepare a coating composition.
To prepare a polyethylene sheet for leading-edge color steel sheet protection, the coating composition was coated on a corona-treated polyethylene sheet and dried in an oven at 80 ° C for 10 minutes to prepare a protective sheet having a thickness of 8 μm.
Test example: Confirmation of adhesion property
The adhesion characteristics of the lead sheet color steel sheet for protection sheet prepared in Example 3 were measured by the following methods.
The adhesion of the specimens was evaluated by measuring the initial adhesion strength shown in the following Table 1 and the 180 degree peel strength shown in Table 2 below. Initial cohesion and 180 degree peel strength were measured as SurTA instrument (CHEMILAB). The initial adhesive strength was measured as tack length and tack energy. The 180 degree peel strength was measured by reciprocating 3 times at a speed of 300 mm / min with a 2 kg roll in accordance with JIS Z 0237 and then waiting for 30 minutes. Lt; RTI ID = 0.0 > 180 < / RTI >
As shown in Tables 1 and 2, it was confirmed that the pressure-sensitive adhesive composition for a protective sheet of the present invention exhibits excellent initial tack and peel strength. The peel strength of the samples was maintained for one week under constant temperature and humidity conditions of 50 ° C and 95% relative humidity for reliability evaluation. As a result, all specimens were maintained in the peel strength range shown in Table 2, No flow phenomenon occurred.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. . Accordingly, the true scope of the present invention should be determined by the following claims.
Claims (13)
300 to 800 parts by weight of a reactive unsaturated acrylate monomer,
1 to 10 parts by weight of a carboxyl group-containing unsaturated monomer,
1 to 10 parts by weight of an epoxy group-containing unsaturated monomer and
1 to 5 parts by weight of an amide group-containing unsaturated monomer,
The seed emulsion is prepared by mixing 0.01 to 30 parts by weight of a carboxyl group or a hydroxyl group-containing unsaturated monomer with 100 parts by weight of a mixture of a reactive unsaturated acrylate monomer containing methyl methacrylate and 2-ethylhexyl acrylate and a styrene monomer, Or 0.1 to 30 parts by weight of a nonionic surfactant having an HLB value of 10 or more,
And an aziridine curing agent in an amount of 0.5 to 2 phr.
The epoxy group-containing unsaturated monomer may be at least one selected from the group consisting of glycidyl (meth) acrylate, alpha methyl glycidyl (meth) acrylate, glycidyl allyl ether, oxocyclohexyl (meth) acrylate and 3,4-epoxycyclohexylmethyl Methacrylate, and mixtures thereof. The pressure-sensitive adhesive composition for a protective sheet according to claim 1,
The amide group-containing unsaturated monomer may be at least one selected from the group consisting of (meth) acrylamide, diethylacrylamide, N-vinylpyrrolidone, N, N-dimethyl (meth) acrylamide, N, (Meth) acrylamide, N, N-dimethylaminopropyl methacrylamide, N, N-dimethylaminopropyl methacrylamide, diacetone (meth) acrylamide and methylol Wherein the pressure-sensitive adhesive composition is a mixture of two or more kinds.
Dodecylmercaptan, n-octylmercaptan, glycidylmercaptan, mercaptoacetic acid, 2-mercaptoethanol, 2-ethylhexylthioglycolic acid and Methyl-1-propanol, and 2,3-dimercapto-1-propanol.
Wherein the pressure-sensitive adhesive composition further comprises at least one selected from the group consisting of a wetting agent, an antifoaming agent and an increasing agent.
A protective sheet for pressure-sensitive adhesive composition, characterized in that the glass transition temperature (T g) is -60 to 0 ℃.
wherein the pH of the pressure-sensitive adhesive composition is adjusted to a range of 6 to 9.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100388796B1 (en) * | 2001-05-11 | 2003-06-25 | 신화인터텍 주식회사 | Aqueous acrylic adhesives, preparing method thereof, and explosion proof tapes for fixing braun tube using them |
| KR101109298B1 (en) * | 2009-12-29 | 2012-01-31 | 주식회사 엘지화학 | Acrylic Adhesive, A Method For Manufacturing Thereof, And Adhesive Sheet Comprising The Same |
| US20120077030A1 (en) | 2010-09-23 | 2012-03-29 | Basf Se | Multistage preparation of aqueous pressure-sensitive adhesive dispersions for producing self-adhesive articles |
| KR101182944B1 (en) | 2009-07-16 | 2012-09-13 | 주식회사 엘지화학 | Removable Pressure Sensitive Adhesive Of Acrylic Emulsion Type And Method For Preparing The Same |
| KR101389610B1 (en) * | 2013-10-25 | 2014-04-29 | 주식회사 엘지화학 | pressure sensitive adhesive composition for protective film |
| WO2014187692A1 (en) * | 2013-05-21 | 2014-11-27 | Basf Se | Preparation of pressure sensitive adhesive dispersions from multi-stage emulsion polymerization for applications of protective films |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8148471B2 (en) * | 2009-11-23 | 2012-04-03 | 3M Innovative Properties Company | Acrylic pressure-sensitive adhesives with aziridinyl-epoxy crosslinking system |
-
2016
- 2016-02-24 KR KR1020160021898A patent/KR101862838B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100388796B1 (en) * | 2001-05-11 | 2003-06-25 | 신화인터텍 주식회사 | Aqueous acrylic adhesives, preparing method thereof, and explosion proof tapes for fixing braun tube using them |
| KR101182944B1 (en) | 2009-07-16 | 2012-09-13 | 주식회사 엘지화학 | Removable Pressure Sensitive Adhesive Of Acrylic Emulsion Type And Method For Preparing The Same |
| KR101109298B1 (en) * | 2009-12-29 | 2012-01-31 | 주식회사 엘지화학 | Acrylic Adhesive, A Method For Manufacturing Thereof, And Adhesive Sheet Comprising The Same |
| US20120077030A1 (en) | 2010-09-23 | 2012-03-29 | Basf Se | Multistage preparation of aqueous pressure-sensitive adhesive dispersions for producing self-adhesive articles |
| WO2014187692A1 (en) * | 2013-05-21 | 2014-11-27 | Basf Se | Preparation of pressure sensitive adhesive dispersions from multi-stage emulsion polymerization for applications of protective films |
| KR101389610B1 (en) * | 2013-10-25 | 2014-04-29 | 주식회사 엘지화학 | pressure sensitive adhesive composition for protective film |
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| KR20170008661A (en) | 2017-01-24 |
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