WO2013191339A1 - 기포 안정성이 향상된 점착제 조성물 및 그의 제조방법 - Google Patents
기포 안정성이 향상된 점착제 조성물 및 그의 제조방법 Download PDFInfo
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- WO2013191339A1 WO2013191339A1 PCT/KR2012/010849 KR2012010849W WO2013191339A1 WO 2013191339 A1 WO2013191339 A1 WO 2013191339A1 KR 2012010849 W KR2012010849 W KR 2012010849W WO 2013191339 A1 WO2013191339 A1 WO 2013191339A1
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- acrylate
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- sensitive adhesive
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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
- 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
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
-
- 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
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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
- C09J7/00—Adhesives in the form of films or foils
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2333/06—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2333/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/28—Glass
Definitions
- the present invention relates to an adhesive composition having improved bubble stability and a method of manufacturing the same.
- Japanese Laid-Open Patent Publication No. 2011-190290 describes an adhesive composition including bubbles and acrylic resins formed of inert gas such as nitrogen, carbon dioxide, argon, and the like, which easily winds up the adhesive tape including the adhesive composition.
- inert gas such as nitrogen, carbon dioxide, argon, and the like
- contents related to the stability of bubbles contained in the pressure-sensitive adhesive composition are not disclosed.
- One embodiment of the present invention provides a pressure-sensitive adhesive composition excellent in bubble stability regardless of the external temperature or the viscosity of the pressure-sensitive adhesive composition.
- Another embodiment of the present invention provides a method of preparing the pressure-sensitive adhesive composition.
- the acrylic ester monomer is methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, t-butyl ( Meth) acrylate, sec-butyl (meth) acrylate, pentyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, 2-ethylbutyl (meth) acrylate, n-octyl (meth) acrylate, At least one selected from the group consisting of isooctyl (meth) acrylate, isononyl (meth) acrylate, lauryl (meth) acrylate, tetradecyl (meth) acrylate, and combinations thereof.
- the polar functional group-containing monomer may be at least one selected from the group consisting of a hydroxy group-containing monomer, a carboxyl group-containing monomer, a nitrogen-containing monomer, and a combination thereof.
- the hollow glass filler or the bubbles may be spherical.
- the hollow glass filler or bubble may have a particle diameter of about 20 ⁇ m to about 300 ⁇ m.
- the hollow glass filler may include about 0.1 part by weight to about 20 parts by weight based on 100 parts by weight of the (meth) acrylic acid ester monomer.
- the bubble may be about 0.1% to about 10% by volume per unit volume.
- the pressure-sensitive adhesive composition may have a density of about 0.4 g / m 3 to about 0.8 g / m 3 .
- a copolymer by polymerizing about 5 parts by weight to about 50 parts by weight of a polar functional group-containing monomer with respect to 100 parts by weight of the (meth) acrylic acid ester monomer; Preparing a mixture by adding a surfactant, a photoinitiator and a photocuring agent to the copolymer; And it provides a pressure-sensitive adhesive composition manufacturing method comprising the step of adding a hollow glass filler or injecting bubbles to the mixture.
- the hollow glass filler may be added or the step of curing the bubble-infused mixture may further comprise.
- the pressure-sensitive adhesive composition is due to the interaction between the functional groups to eliminate the phenomenon that the hollow glass filler or bubbles contained in the copolymer to the surface to burst, and improve the stability of the bubble.
- the pressure-sensitive adhesive composition on one side or both sides of the acrylic foam can be utilized as an acrylic foam tape.
- Example 1 is a photograph taken by Example 1 and Comparative Example 1 by SEM.
- the pressure-sensitive adhesive composition according to an embodiment of the present invention is a copolymer in which a polar functional group-containing monomer is polymerized in an amount ratio of 5 parts by weight to 50 parts by weight with respect to 100 parts by weight of the (meth) acrylic acid ester monomer; And hollow glass fillers or bubbles.
- the kind of said (meth) acrylic acid ester monomer is not specifically limited, For example, an alkyl (meth) acrylate can be used. At this time, if the alkyl group contained in the monomer is too long, the cohesive force of the pressure-sensitive adhesive composition may be lowered, and the glass transition temperature (Tg) and the adhesion may become difficult to control, and thus the alkyl group having 1 to 14 carbon atoms (meth) ) Acrylic acid ester monomers may be used.
- Tg glass transition temperature
- Acrylic acid ester monomers may be used.
- the acrylic ester monomer is methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, t -Butyl (meth) acrylate, sec-butyl (meth) acrylate, pentyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, 2-ethylbutyl (meth) acrylate, n-octyl (meth) At least one selected from the group consisting of acrylate, isooctyl (meth) acrylate, isononyl (meth) acrylate, lauryl (meth) acrylate, tetradecyl (meth) acrylate, and combinations thereof.
- the pressure-sensitive adhesive composition may include a polar functional group-containing monomer
- the pressure-sensitive adhesive composition of one embodiment of the present invention is a copolymer of a monomer mixture comprising a (meth) acrylic acid ester monomer and a polar functional group-containing monomer Can be.
- the polar functional group-containing monomer includes a polar functional group copolymerizable with the (meth) acrylic acid ester monomer, thereby controlling durability and cohesion of the pressure-sensitive adhesive composition.
- polar functional group-containing monomers that can be used include hydroxy group-containing monomers, carboxyl group-containing monomers and nitrogen-containing monomers.
- a hydroxy group-containing monomer of the polar functional group-containing monomer may be used, but is not limited thereto.
- the hydroxy group-containing monomers above include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) Acrylate, 8-hydroxyoctyl (meth) acrylate, 2-hydroxyethylene glycol (meth) acrylate or 2-hydroxypropylene glycol (meth) acrylate, and examples of carboxyl group-containing monomers include ( Meta) acrylic acid, 2- (meth) acryloyloxy acetic acid, 3- (meth) acryloyloxy propyl acid, 4- (meth) acryloyloxy butyl acid, acrylic acid duplex, itaconic acid, maleic acid and male Acid anhydrides, and examples of nitrogen-containing monomers include, but are not limited to, (
- the pressure-sensitive adhesive composition includes a hollow glass filler or a bubble, and by limiting the content of the (meth) acrylic acid ester monomer and the polar functional group-containing monomer, the hollow glass filler or the bubble may be stably contained while maintaining a certain form. Can be.
- the pressure-sensitive adhesive composition may include about 5 parts by weight to about 50 parts by weight of a polar functional group-containing monomer based on 100 parts by weight of the (meth) acrylic acid ester monomer.
- a polar functional group-containing monomer based on 100 parts by weight of the (meth) acrylic acid ester monomer.
- the pressure-sensitive adhesive composition about 100 parts by weight of the (meth) acrylic acid ester monomer, for example, when the polar functional group-containing monomer is a carboxyl group-containing monomer, about 5 parts by weight to about 25 parts by weight, the polar functional group-containing monomer is a hydroxyl group In the case of a monomer containing about 15 parts by weight to about 40 parts by weight, it may include the hollow glass filler or the bubble having a certain form stably.
- the hollow glass filler may be organic, inorganic, or a combination thereof, and specifically, may include a hollow glass bubble, a hollow polymer microsphere, and the like.
- the glass bubble is a spherical low specific gravity hollow glass microspheres (ture glass) (Hollow Glass Microspheres) refers to a lightweight filler having high strength, excellent heat resistance, chemical resistance.
- the glass bubble has a very low specific gravity compared to the specific gravity of the filler used in the conventional plastic, as well as reducing the weight by the specific gravity, reducing the amount of resin used, dimensional stability and deformation after molding, improved workability and formability, insulation performance And water resistance improvement can be expected.
- the hollow polymer microspheres may also be included to reduce the weight of the pressure-sensitive adhesive composition to low specific gravity, for example, is sold as Expancel, Micropearl and the like.
- the pressure-sensitive adhesive composition according to an embodiment of the present invention can reduce the overall specific gravity of the pressure-sensitive adhesive composition by including a hollow glass filler, the use of the pressure-sensitive adhesive composition is diversified, the adhesive to which the pressure-sensitive adhesive composition is applied It is possible to reduce the total weight of the.
- the bubble may be formed of a gas component, and the gas component is not particularly limited, and various gas components such as inert gas such as nitrogen, carbon dioxide, and argon may be used.
- inert gas such as nitrogen, carbon dioxide, and argon
- nitrogen is suitable in terms of not inhibiting the reaction in the gas forming the bubble or in terms of cost.
- the hollow glass filler or the bubble usually has a spherical shape, but may have a distorted spherical shape.
- the hollow glass filler is similar to the formation of hollow ping-pong balls and is more likely to maintain a spherical shape than bubbles.
- the hollow glass filler or the bubble may have a particle diameter of about 20 ⁇ m to about 300 ⁇ m, more specifically about 50 ⁇ m to about 200 ⁇ m.
- the hollow glass fillers or the bubbles may be present in independent forms or in continuous forms. That is, the pressure-sensitive adhesive composition may also include a continuous form in which the hollow glass fillers, the bubbles, or the hollow glass fillers and the bubbles are fused.
- the hollow glass filler may include about 0.1 parts by weight to about 20 parts by weight based on 100 parts by weight of the (meth) acrylic acid ester monomer, and specifically, may include about 3 parts by weight to about 10 parts by weight.
- the hollow glass filler in the above range, it is easy to cause cure shrinkage of the pressure-sensitive adhesive composition of one embodiment of the present invention, while maintaining a constant strength.
- the hollow glass filler is added too little, it is difficult to meet the desired density, and if too much, the viscosity of the pressure-sensitive adhesive composition is excessively increased, so that stirring may be difficult or the adhesion may be reduced.
- the hollow glass filler or the bubbles in the pressure-sensitive adhesive composition may be present evenly dispersed.
- the stability of the hollow glass filler or the bubble is low, the hollow glass filler or the bubble is broken, the dispersibility and distribution rate is lowered, so that the hollow glass filler or the bubble cannot be evenly dispersed, It contains a relatively small amount.
- the bubble of the pressure-sensitive adhesive composition may occupy about 0.1% to about 10% by volume per unit volume. Since the bubble contains the volume% of the above range per unit volume, the pressure-sensitive adhesive composition can be flexible, has excellent cushioning properties to improve the adhesion area, the bubble burst due to the maintenance of a certain volume% It can be seen that it is uniformly present in the pressure-sensitive adhesive composition without.
- the pressure-sensitive adhesive composition has a density of about 0.4 g / m 3 to about 0.8 g / m 3 , specifically about 0.5 g / m 3 to about 0.8 g / m 3 , and more specifically about 0.6 g / m 3 to about density May be 0.8 g / m 3 . If the pressure-sensitive adhesive composition is low, the hollow glass filler or the bubbles may be inferred to be evenly and uniformly dispersed. On the other hand, if the pressure-sensitive adhesive composition is high, the hollow glass filler or the bubble may burst. It can be seen that the dispersibility is poor.
- the pressure-sensitive adhesive composition may be evenly distributed by the hollow glass filler or the bubble by limiting the content ratio of the monomers forming the copolymer, the density of the pressure-sensitive adhesive composition can maintain the above range. Further, by applying the pressure-sensitive adhesive composition on one side or both sides of the acrylic foam can be utilized as an acrylic foam tape.
- the thickness of the pressure-sensitive adhesive composition coating layer is not particularly limited and may be selected from, for example, about 100 ⁇ m to about 3000 ⁇ m, specifically about 400 ⁇ m to about 2000 ⁇ m. By maintaining the thickness of the pressure-sensitive adhesive composition coating layer, it is possible to ensure a constant cushion (cushion) properties, it is possible to improve the adhesion to the curved surface or uneven surface.
- Another embodiment of the present invention is to prepare a copolymer by polymerizing 5 to 50 parts by weight of a polar functional group-containing monomer with respect to 100 parts by weight of the (meth) acrylic acid ester monomer; Preparing a mixture by adding a surfactant, a photoinitiator and a photocuring agent to the copolymer; And it provides a pressure-sensitive adhesive composition manufacturing method comprising the step of adding a hollow glass filler or injecting bubbles to the mixture.
- the pressure-sensitive adhesive composition manufacturing method includes preparing a copolymer by polymerizing about 5 parts by weight to about 50 parts by weight of a polar functional group-containing monomer based on 100 parts by weight of the (meth) acrylic acid ester monomer.
- the step is a step of thermally polymerizing the (meth) acrylic acid ester monomer and the polar functional group-containing monomer to prepare a copolymer, the conditions for performing the thermal polymerization is not particularly limited.
- the thermal polymerization may be performed at a temperature of about 50 ° C. to about 70 ° C., specifically about 50 ° C. to about 60 ° C., for about 1 hour to about 3 hours, more specifically about 2 hours.
- the (meth) acrylic acid ester monomer and the polar functional group-containing monomer which are polymerized can be added all at once, or they can be added separately or in succession.
- the pressure-sensitive adhesive composition manufacturing method includes a step of preparing a mixture by adding a surfactant, a photoinitiator and a photocuring agent to the (meth) acrylic acid ester monomer and the polar functional-containing monomer polymerized copolymer.
- a surfactant e.g., a photoinitiator
- a photocuring agent e.g., a photocuring agent used at this time.
- the surfactant may be an ionic surfactant, a silicone-based surfactant, or the like.
- the amount of the surfactant used is not particularly limited, but may be selected from about 0.01 part by weight to about 5 parts by weight, specifically about 0.05 part by weight to about 3 parts by weight, based on 100 parts by weight of the polymerized resin.
- the kind of the photoinitiator is not particularly limited, for example, benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin n-butyl ether, benzoin isobutyl ether, acetophenone, dimethyl Anino acetophenone, 2,2-dimethoxy-2-phenylacetophenone, 2,2-diethoxy-2-phenylacetophenone, 2-hydroxy-2-methyl-1-phenylpropane-1one, 1- Hydroxycyclohexylphenyl ketone, 2-methyl-1- [4- (methylthio) phenyl] -2-morpholino-propan-1-one, 4- (2-hydroxyethoxy) phenyl-2- (hydroxy Oxy-2-propyl) ketone, benzophenone, p-phenylbenzophenone, 4,4'-diethylaminobenzophenone, dichlorobenzophenone, 2-methylanthr
- the photocuring agent may adjust the adhesive properties of the pressure-sensitive adhesive composition according to the amount of use, and in some cases may serve to give a crosslinked structure.
- polar monomers such as polyfunctional acrylate
- the photocuring agent may be included in an amount of about 0.05 parts by weight to about 2 parts by weight based on 100 parts by weight of the polymerized resin. Since the photocuring agent maintains the above range, there is no fear of deterioration in durability due to a decrease in cohesion, and there is no fear of deterioration in durability reliability at high temperature or high humidity conditions.
- the pressure-sensitive adhesive composition manufacturing method includes adding a hollow glass filler or injecting bubbles into the mixture.
- the pressure-sensitive adhesive composition comprises the hollow glass filler and the bubble at the same time, by adding a hollow glass filler to the mixture, to prepare a sticky mixture for stirring, by injecting bubbles after vacuum degassing using a vacuum pump Pressure-sensitive adhesive composition of one embodiment of the present invention can be prepared.
- the pressure-sensitive adhesive composition manufacturing method may further comprise the step of curing the mixture in which the hollow glass filler is added or the bubble is injected.
- the pressure-sensitive adhesive composition may be coated on one or both sides of the acrylic foam.
- the photoinitiator Since the photoinitiator must be activated in order to cure the mixture, it is important to irradiate the mixture into which the hollow glass filler is added or the bubble is injected.
- active energy ray ionizing radiation, such as (alpha) ray, (beta) ray, gamma ray, neutron ray, an electron beam, an ultraviolet ray, etc. are mentioned, Ultraviolet ray is especially suitable.
- the irradiation energy (Energy), the irradiation time, the irradiation method, and the like of the activation energy (Energy) is not particularly limited, the photoinitiator can be activated to cause curing of the mixture.
- pouring of a bubble, and hardening can be performed continuously.
- the hollow glass filler is added or the mixture into which the bubbles are injected can be applied onto a predetermined surface, and dried or cured, if necessary, to form an adhesive composition coating layer.
- the pressure-sensitive adhesive composition is obtained by adding a hollow glass filler or injecting gas bubbles into a mixture containing a surfactant, a photoinitiator and a photocuring agent, applying a coating on a predetermined surface, and then irradiating heating or energetic light.
- a coating layer may be prepared, and at this time, the pressure-sensitive adhesive composition coating layer may include the hollow glass filler or the bubble evenly dispersed.
- 11 parts by weight of polar monomer acrylic acid was thermally polymerized in a 1 liter glass reactor with respect to 100 parts by weight of 2-ethyl hexyl acrylate to obtain a copolymer having a viscosity of 3500 cP.
- An acrylic foam tape was prepared in the same manner as in Example 1 except that the coating temperature was changed to 25 ° C. in Example 1.
- An acrylic foam tape was prepared in the same manner as in Example 2 except for including 25 parts by weight of 2-hydroxyethyl acrylate based on 100 parts by weight of 2-ethylhexyl acrylate in Example 2.
- An acrylic foam tape was prepared in the same manner as in Example 2 except that 5 parts by weight of 2-hydroxyethyl acrylate was included based on 100 parts by weight of 2-ethylhexyl acrylate in Example 2.
- An acrylic foam tape was prepared in the same manner as in Example 2 except for including 40 parts by weight of 2-hydroxyethyl acrylate based on 100 parts by weight of 2-ethylhexyl acrylate in Example 2.
- An acrylic foam tape was prepared in the same manner as in Example 1 except that 50 parts by weight of the polar monomer acrylic acid was included with respect to 100 parts by weight of 2-ethylhexyl acrylate in Example 1.
- An acrylic foam tape was prepared in the same manner as in Example 1 except that 3 parts by weight of the polar monomer acrylic acid was included with respect to 100 parts by weight of 2-ethylhexyl acrylate in Example 1.
- An acrylic foam tape was prepared in the same manner as in Example 2 except that 3 parts by weight of the polar monomer acrylic acid was included with respect to 100 parts by weight of 2-ethylhexyl acrylate in Example 2.
- An acrylic foam tape was prepared in the same manner as in Example 2 except that 60 parts by weight of 2-hydroxyhexyl acrylate was included based on 100 parts by weight of 2-ethylhexyl acrylate.
- Density The density of the Examples and Comparative Examples was measured using an electronic solid hydrometer (DME-220E).
- the copolymer was formed at a mixing ratio of the (meth) acrylic acid ester monomer and the polar functional group-containing monomer different from the pressure-sensitive adhesive composition of one embodiment of the present invention. Compared with the density of the pressure-sensitive adhesive composition was measured, the number of bubbles in the pressure-sensitive adhesive composition was also less than 7 per certain area. This is because the dispersibility is poor due to the bursting of bubbles, the experimental results of the experimental example was found to be based on the monomer composition of the copolymer constituting the pressure-sensitive adhesive composition.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
온도(℃) | 공중합체 조성(To 2-EHA 100중량부) | 점착제 조성물 밀도(g/m3) | 점착제 조성물 내 기포수(개) | 안정성 | |
실시예1 | 10 | AA 11중량부 | 0.72 | 15 | ○ |
실시예2 | 25 | AA 11중량부 | 0.74 | 12 | ○ |
실시예3 | 25 | 2-HEA 25중량부 | 0.73 | 14 | ○ |
실시예4 | 25 | 2-HEA 5중량부 | 0.69 | 16 | ○ |
실시예5 | 25 | 2-HEA 50중량부 | 0.72 | 13 | ○ |
실시예6 | 10 | AA 40중량부 | 0.73 | 14 | ○ |
비교예1 | 10 | AA 3중량부 | 0.81 | 7 | X |
비교예2 | 25 | AA 3중량부 | 0.83 | 6 | X |
비교예3 | 25 | 2-HEA 60중량부 | 0.84 | 6 | X |
Claims (10)
- (메타) 아크릴산 에스테르계 단량체 100중량부에 대해서 극성 관능기 함유 단량체가 5중량부 내지 50중량부의 함량비로 중합된 공중합체; 및중공형 유리 충전제 또는 기포를 포함하는점착제 조성물.
- 제 1항에 있어서,상기 아크릴산 에스테르계 단량체가 메틸 (메타)아크릴레이트, 에틸 (메타)아크릴레이트, n-프로필 (메타)아크릴레이트, 이소프로필 (메타)아크릴레이트, n-부틸 (메타)아크릴레이트, t-부틸 (메타)아크릴레이트, sec-부틸 (메타)아크릴레이트, 펜틸 (메타)아크릴레이트, 2-에틸헥실 (메타)아크릴레이트, 2-에틸부틸 (메타)아크릴레이트, n-옥틸 (메타)아크릴레이트, 이소옥틸 (메타)아크릴레이트, 이소노닐 (메타)아크릴레이트, 라우릴 (메타)아크릴레이트, 테트라데실 (메타)아크릴레이트 및 이들의 조합으로 이루어진 군으로부터 선택된 적어도 하나 이상인점착제 조성물.
- 제 1항에 있어서,상기 극성 관능기 함유 단량체는 히드록시기 함유 단량체, 카복실기 함유 단량체, 질소 함유 단량체 및 이들의 조합으로 이루어진 군으로부터 선택된 적어도 하나 이상인점착제 조성물.
- 제 1항에 있어서,상기 중공형 유리 충전제 또는 상기 기포가 구형인 점착제 조성물.
- 제 1항에 있어서,상기 중공형 유리 충전제 또는 상기 기포의 입자직경이 20㎛ 내지 300㎛인점착제 조성물.
- 제 1항에 있어서,상기 중공형 유리 충전제가 상기 (메타) 아크릴산 에스테르계 단량체 100중량부에 대해서 0.1중량부 내지 20중량부를 포함하는점착제 조성물.
- 제 1항에 있어서,상기 기포가 단위부피당 0.1부피% 내지 10부피%를점착제 조성물.
- 제 1항에 있어서,상기 점착제 조성물의 밀도가 0.4g/m3 내지 0.8g/m3 인점착제층.
- (메타) 아크릴산 에스테르계 단량체 100중량부에 대해서 극성 관능기 함유 단량체를 5중량부 내지 50중량부를 중합하여 공중합체를 제조하는 단계;상기 공중합체에 계면활성제, 광개시제 및 광경화제를 첨가하여 혼합물을 제조하는 단계; 및상기 혼합물에 중공형 유리 충전제를 첨가하거나 기포를 주입하는 단계를 포함하는점착제 조성물 제조방법.
- 제 9항에 있어서,상기 중공형 유리 충전제가 첨가되거나 상기 기포가 주입된 혼합물을 경화하는 단계를 추가로 포함하는점착제 조성물 제조방법.
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JP2015518313A JP6238374B2 (ja) | 2012-06-19 | 2012-12-13 | 気泡安定性が向上した粘着剤組成物およびその製造方法 |
CN201280074017.0A CN104364332A (zh) | 2012-06-19 | 2012-12-13 | 气泡稳定性提高的粘结剂组合物及其制备方法 |
EP12879380.9A EP2862911B1 (en) | 2012-06-19 | 2012-12-13 | Adhesive agent composition having improved bubble stability and method for preparing same |
US14/400,570 US20150133583A1 (en) | 2012-06-19 | 2012-12-13 | Adhesive agent composition having improved bubble stability and method for preparing same |
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KR1020120065365A KR101534898B1 (ko) | 2012-06-19 | 2012-06-19 | 기포 안정성이 향상된 점착제 조성물 및 그의 제조방법 |
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EP (1) | EP2862911B1 (ko) |
JP (1) | JP6238374B2 (ko) |
KR (1) | KR101534898B1 (ko) |
CN (1) | CN104364332A (ko) |
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US20160083491A1 (en) * | 2013-05-20 | 2016-03-24 | 3M Innovative Properties Company | Curable acrylic composition, acrylic tape, acrylic rubber roll and method for preparing the acrylic rubber roll |
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KR101925922B1 (ko) * | 2014-12-24 | 2018-12-06 | 주식회사 엘지화학 | 아크릴계 점착 시트, 의료용 점착 테이프 및 제조방법 |
EP3405541A1 (en) * | 2016-01-18 | 2018-11-28 | 3M Innovative Properties Company | Pressure-sensitive adhesive with filler |
CN110691640B (zh) | 2017-05-30 | 2022-04-26 | 东丽株式会社 | 分离膜元件 |
KR102018061B1 (ko) | 2017-11-28 | 2019-09-04 | 주식회사 영우 | 경화수축율이 작은 자외선 경화형 점착 조성물 및 이를 포함하는 점착 테이프 |
JP7025046B2 (ja) | 2020-01-28 | 2022-02-24 | Necプラットフォームズ株式会社 | 試験システム、試験方法、及びプログラム |
KR102379084B1 (ko) | 2021-09-30 | 2022-03-24 | 윤미라 | 자외선 경화형 수지 조성물 및 이를 포함하는 자외선 경화형 라미네이트 시트의 제조 방법 |
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- 2012-12-13 CN CN201280074017.0A patent/CN104364332A/zh active Pending
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US20150133583A1 (en) | 2015-05-14 |
EP2862911A4 (en) | 2015-08-05 |
EP2862911B1 (en) | 2020-05-06 |
CN104364332A (zh) | 2015-02-18 |
JP2015525282A (ja) | 2015-09-03 |
EP2862911A1 (en) | 2015-04-22 |
JP6238374B2 (ja) | 2017-11-29 |
KR20130142284A (ko) | 2013-12-30 |
TWI475083B (zh) | 2015-03-01 |
KR101534898B1 (ko) | 2015-07-07 |
TW201400567A (zh) | 2014-01-01 |
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