Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L33/00—Compositions 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; Compositions of derivatives of such polymers
  • C08L33/04—Homopolymers or copolymers of esters
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
• • 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
  • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
  • C08J5/18—Manufacture of films or sheets
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L13/00—Compositions of rubbers containing carboxyl groups
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
  • C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• • 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
  • C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
• • 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
  • C08J2353/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
• • 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
  • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
  • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
  • C08J2423/04—Homopolymers or copolymers of ethene
  • C08J2423/06—Polyethene
• • 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
  • C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
  • C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L2203/00—Applications
  • C08L2203/16—Applications used for films
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L2205/00—Polymer mixtures characterised by other features
  • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Definitions

• the present invention relates to an acrylic elastomeric resin composition and a film prepared using the same. More particularly, the present invention relates to an acrylic elastomeric resin composition that can decrease deformation of a film, can easily control properties of a film, can enhance processability, is nontoxic and eco-friendly, exhibits superior dimensional stability, etc. due to superior elasticity and flexibility, and exhibits superior adhesion to other synthetic resin films (PVC film, etc.), and a film prepared using the same.
• PVC film, etc. synthetic resin films
• a PVC material is mainly used as a raw material of a flooring material.
• conventional flooring materials comprise a balance layer, a cushion layer, a dimensionally stabilizing layer, a printed layer, a transparent PVC layer and a surface-treated layer which are laminated in this order from a bottom side.
• a PVC material is mainly used in conventional flooring materials, a toxic phthalate-based plasticizer is included and thus toxic materials such as environmental hormones and toxic gases (hydrogen chloride) are released upon waste incineration or firing.
• toxic materials such as environmental hormones and toxic gases (hydrogen chloride) are released upon waste incineration or firing.
• the PVC material almost permanently remains in nature upon landfilling, thus causing great environmental burden.
• the flooring materials include a surface-treated layer on an upper side thereof, they can be protected from scratches and contamination. However, as time passes the surface-treated layer is increasingly worn and thus removed. In this case, a transparent PVC layer (transparent PVC film) laminated under the surface-treated layer is exposed to the outside. When such a transparent PVC layer as a PVC material contact the human body, toxic materials released from the PVC material negatively affect the human body.
• PLA resin poly lactic acid
• PLA resin has a narrow process temperature range of 130 to 150°C, processability is low and thus, when a film is produced using the same, productivity may be decreased.
• PLA resin has a narrow use temperature range of 20 to 35°C, it is difficult to apply PLA resin to flooring materials.
• a use temperature is 20°C or less, which is outside this temperature range, PLA resin is excessively hardened.
• PLA resin is easily destroyed in winter, and elasticity thereof is lost at 35°C or more, thus tending to be excessively softened. Accordingly, required properties of a film used in flooring materials are rapidly decreased and thus functions as flooring materials may be lost.
• Patent Document 1 KR 10-2004-0065494 A (published on 22 July 2004)
• the present invention has been made in view of the above problems, and it is one object of the present invention to provide an acrylic elastomeric resin composition that exhibits less film deformation, enables film properties to be easily controlled, can enhance processability, are nontoxic and eco-friendly, has superior dimensional stability due to superior elasticity and flexibility, and superior adhesion to other synthetic resin films (PVC film, etc.), and a film prepared using the same.
• an acrylic elastomeric resin composition comprising an acrylic elastomeric resin as a copolymer of a polymer of an alkyl methacrylate monomer composing a hard segment and a polymer of an alkyl acrylate monomer composing a soft segment.
• a film prepared using the acrylic elastomeric resin composition is provided.
• the present invention advantageously provides an acrylic elastomeric resin composition using an acrylic elastomeric resin having elasticity and thus exhibiting less film deformation.
• the acrylic elastomeric resin composition according to the present invention is prepared by controlling a ratio between alkyl methacrylate and an alkyl acrylate monomer composing the acrylic elastomeric resin and thus film properties may be controlled.
• the acrylic elastomeric resin composition according to the present invention exhibits increased processability upon calendar-molding, casting-molding, blow-molding, T-die extrusion-molding, etc. due to a wide process temperature range of the acrylic elastomeric resin.
• the acrylic elastomeric resin composition according to the present invention does not require use of toxic phthalate-based plasticizers, has high fluidity due to low melt viscosity of the acrylic elastomeric resin, and emits volatile organic compounds, which may be included in the composition, in a small amount due to low solution viscosity.
• the acrylic elastomeric resin composition according to the present invention exhibits superior adhesion to other synthetic resin films (PVC film, etc.) when used as a flooring material after being prepared into a film, due to superior compatibility and adhesive properties of the acrylic elastomeric resin with a polar resin.
• a film prepared using the acrylic elastomeric resin composition according to the present invention having the effects described above is nontoxic and eco-friendly, has superior dimensional stability, etc. due to the superior elasticity and flexibility, and has superior adhesion to other synthetic resin films (PVC film, etc.).
• the present invention relates to an acrylic elastomeric resin composition which exhibits less film deformation when prepared into a film, enables film properties to be easily controlled, can enhance processability, is nontoxic and eco-friendly, has superior dimensional stability, etc. due to the superior elasticity and flexibility, and has superior adhesion to other synthetic resin films(PVC films, etc.).
• an acrylic elastomeric resin may be a copolymer of a polymer of an alkyl methacrylate monomer composing a hard segment and a polymer of an alkyl acrylate monomer composing a soft segment.
• the copolymer may be a core-shell-structure copolymer or a block copolymer.
• the core-shell-structure copolymer has a bonding structure including a soft segment as a core and a hard segment as a shell enveloping the core.
• the core comprising the soft segment is prepared and then the shell including the hard segment and enveloping the core is prepared.
• the core and the shell may be prepared through emulsion polymerization or suspension polymerization.
• suspension polymerization permitting easy polymer separation or processing, is used.
• the block copolymer may be composed of a soft segment and a hard segment, and may be a dicopolymer represented by soft-hard segments, a triblock copolymer represented by hard-soft-hard segments, or a triblock copolymer represented by soft-hard-hard segments.
• the triblock copolymer represented by the hard-soft-hard segments is preferred since it may enhance low-temperature impact resistance, heat resistance, etc.
• the alkyl methacrylate monomer composing the hard segment may be one or more selected from the group consisting of methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, sec-butyl methacrylate, tert-butyl methacrylate, amyl methacrylate, isoamyl methacrylate, n-hexyl methacrylate, cyclohexyl methacrylate, 2-ethylhexyl methacrylate, pentadecyl methacrylate, dodecyl methacrylate, isobornyl methacrylate, phenyl methacrylate, benzyl methacrylate, phenoxy ethyl methacrylate, 2-hydroxyethyl methacrylate, 2-methoxyethyl methacrylate, gly
• the alkyl methacrylate monomer composing the hard segment is preferably one or two selected from the group consisting of methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, tert-butyl methacrylate, cyclohexyl methacrylate, and isobornyl methacrylate, more preferably methyl methacrylate.
• the alkyl acrylate monomer composing the soft segment may be one or more selected from the group consisting of methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, sec-butyl acrylate, tert-butyl acrylate, amyl acrylate, isoamyl acrylate, n-hexyl acrylate, cyclohexyl acrylate, 2-ethylhexyl acrylate, pentadecyl acrylate, dodecyl acrylate, isobornyl acrylate, phenyl acrylate, benzyl acrylate, phenoxyethyl acrylate, 2-hydroxyethyl acrylate, 2-methoxyethyl acrylate, glycidyl acrylate, and allyl acrylate.
• the alkyl acrylate monomer composing the soft segment is preferably one or two selected from ethyl acrylate, n-propyl acrylate, n-butyl acrylate, 2-ethylhexyl acrylate, and dodecyl acrylate, more preferably n-butyl acrylate.
• a method of living-polymerization of a monomer constituting each block is used.
• living-polymerization include a method of polymerizing anions in the presence of a mine salt such as a salt of alkali metal or alkali earth metal, using an organic alkali metal compound as a polymerization initiator, a method of polymerizing anions in the presence of an organic aluminum compound using an organic alkali metal compound as a polymerization initiator, a method of polymerizing using an organic rear earth metal complex as a polymerization initiator, a method of radical-polymerizing in the presence of a copper compound using an ⁇ -halo ester compound as an initiator, etc.
• a method of polymerizing a monomer constituting each block using a polyvalent radical polymerization initiator or a polyvalent radical as a chain-transfer agent to prepare a mixture containing a block copolymer, etc. may be used.
• a method of polymerizing anions in the presence of an organic aluminum compound using an organic alkali metal compound as a polymerization initiator, without an oligomer, which has a narrow molecular weight distribution and deteriorates impact resistance and heat resistance to obtain a high-purity block copolymer, or a substance having high molecular weight is used.
• organic aluminum compound examples include isobutylbis(2,6-di-t-butyl-4-methylphenoxy) aluminum, isobutylbis(2,6-di-t-butyl phenoxy) aluminum, isobutylbis[2,2'-methylenebis(4-methyl-6-t-butyl phenoxy)]aluminum, n-octylbis(2,6-di-t-butyl-4-methylphenoxy)aluminum, n-octylbis(2,6-di-t-butylphenoxy) aluminum, n-octylbis[2,2'-methylenebis(4-methyl-6-t-butylphenoxy)]aluminum, tris(2,6-di-t-butyl-4-methylphenoxy)aluminum, tris(2,6-diphenylphenoxy) aluminum, etc.
• isobutylbis(2,6-di-t-butyl-4-methylphenoxy)aluminum, isobutylbis(2,4-di-t-butylphenoxy)aluminum, n-octylbis(2,6-di-t-butyl-4-methylphenoxy)aluminum or n-octylbis(2,4-di-t-butylphenoxy) aluminum is preferred.
• the copolymer preferably includes 20 to 90% by weight of the hard segment and 10 to 80% by weight of the soft segment.
• the copolymer when used as a film applied to flooring materials, proper mechanical properties, particularly wear resistance, etc. may be provided.
• the hard segment may have a glass transition temperature of 80 to 120°C
• the soft segment may have a glass transition temperature of -60 to -20°C.
• the hard segment and the soft segment may include, other than the monomers described above, structural units derived from other monomers within the range in which characteristics of each segment are not damaged (generally in a ratio of 40 mol% or less based on the total of structural units composing the polymer segments).
• the structural units are not specifically limited, and examples thereof include structural units derived from unsaturated carboxylic acids such as methacrylic acid, acrylic acid, and maleic anhydride; olefins such as ethylene, propylene, 1-butene, isobutylene, and 1-octene; conjugated diene compounds such as 1,3-butadiene, isoprene and myrcene; aromatic vinyl compounds such as styrene, ⁇ -methylstyrene, p-methylstyrene, and m-methylstyrene; vinyl acetate; vinylpyridine; unsaturated nitriles such as acrylonitrile and methacrylonitrile; vinyl ketones; halogen-containing monomers such as vinyl chloride, vinylidene chloride, and vinylidene fluoride; unsaturated amides such as acrylamide and methacrylamide; or the like.
• the hard segment and the soft segment may have one or more structural units derived from one or more
• the molecular weight of each of the segments in the acrylic elastomeric resin and the total molecular weight of the acrylic elastomeric resin are not specifically limited. However, when molding characteristics and mechanical properties are considered, the weight-average molecular weight of the hard segment is 1,000 to 400,000, preferably 3,000 to 100,000, the weight-average molecular weight of the soft segment is 2,000 to 400,000, preferably 10,000 to 300,000, and the total weight-average molecular weight of the acrylic elastomeric resin is 5,000 to 500,000, preferably 20,000 to 300,000.
• a film may be prepared using only the acrylic elastomeric resin, other relatively cheap resins may be mixed with the acrylic elastomeric resin, within the range in which properties of the film are not greatly affected, due to high cost of the acrylic elastomeric resin.
• the acrylic elastomeric resin composition may selectively comprise a biodegradable PLA resin.
• a mixed resin comprising the acrylic elastomeric resin and the PLA resin may include 10 to 99% by weight of the acrylic elastomeric resin and 1 to 90% by weight of the PLA resin, preferably 20 to 95% by weight of the acrylic elastomeric resin and 5 to 80% by weight of the PLA resin, more preferably 30 to 90% by weight of the acrylic elastomeric resin and 10 to 70% by weight of the PLA resin, most preferably 30 to 70% by weight of the acrylic elastomeric resin and 30 to 70% by weight of the PLA resin.
• elasticity, flexibility and sound insulation are provided, compared to the case in which the PLA resin is used alone.
• unit costs are reduced and biodegradability is increased.
• the acrylic elastomeric resin composition may selectively include a biodegradable PHA resin.
• the PHA resin may be a single polymer including a repeat unit represented by Formula 1 below.
• the PHA resin is a copolymer of a hard segment and a soft segment, wherein the hard segment includes the repeat unit represented by Formula 1 below and the soft segment includes a repeat unit represented by Formula 2 below.
• R 1 is hydrogen or substituted or unsubstituted C 1 to C 15 alkyl and n is an integer of 1 to 3.
• R 2 is hydrogen or substituted or unsubstituted C 1 to C 15 alkyl and m is an integer of 1 to 3.
• R 1 may be hydrogen or substituted or unsubstituted C 1 to C 15 alkyl, and n may be an integer of 1 to 3.
• R 2 may be hydrogen or substituted or unsubstituted C 1 to C 15 alkyl and m may be an integer of 1 to 3.
• R 2 is hydrogen or substituted or unsubstituted C 1 to C 9 alkyl and m is an integer of 1 or 2. More preferably, R 2 is hydrogen or C 1 to C 3 alkyl and m is an integer of 1 or 2.
• the PHA resin includes 50 to 99% by weight of the hard segment and 1 to 50% by weight of the soft segment, preferably 50 to 90% by weight of the hard segment and 10 to 50% by weight of the soft segment, more preferably 60 to 90% by weight of the hard segment and 10 to 40% by weight of the soft segment.
• the content of the hard segment is above this range, the resin becomes hard and thus it is difficult to perform processing.
• the content of the soft segment is above this range, the resin becomes too flexible, whereby viscosity is decreased during processing and releasability is decreased. Therefore, it is preferable to use the PHA resin within the range.
• a mixed resin composed of the PHA resin and the acrylic elastomeric resin includes 10 to 90% by weight of the PHA resin and 10 to 90% by weight of the acrylic elastomeric resin, preferably 30 to 70% by weight of the PHA resin and 30 to 70% by weight of the acrylic elastomeric resin.
• the acrylic elastomeric resin and the PHA resin are preferably used within the above ranges.
• the acrylic elastomeric resin composition may selectively include all of a PLA resin as biodegradable resin and the PHA resin.
• the mixed resin including the PHA resin, the PLA resin and the acrylic elastomeric resin may include 10 to 50% by weight of the PHA resin, 20 to 80% by weight of the acrylic elastomeric resin and 10 to 50% by weight of the PLA resin, preferably 10 to 30% by weight of the PHA resin, 30 to 60% by weight of the acrylic elastomeric resin, and 10 to 40% by weight of the PLA resin.
• the acrylic elastomeric resin composition according to the present invention may further include 1 to 5 parts by weight of a lubricant based on 100 parts by weight of a mixed resin composed of the acrylic elastomeric resin or the PLA resin and/or the PHA resin.
• a lubricant hydrocarbon-based wax or commonly used high-quality fatty acids used in preparing flooring materials may be used.
• the acrylic elastomeric resin composition does not contain low-molecular weight materials such as monomer remainders or oligomers and does not include a plasticizer.
• the acrylic elastomeric resin composition according to the present invention uses the acrylic elastomeric resin having elasticity, less film deformation is exhibited.
• the acrylic elastomeric resin composition according to the present invention may control film properties by adjusting a ratio between the alkyl methacrylate and alkyl acrylate monomers composing the acrylic elastomeric resin.
• the acrylic elastomeric resin composition according to the present invention exhibits enhanced processability when prepared through calendar-molding, cast-molding, blow-molding, T-die extrusion-molding, etc.
• the acrylic elastomeric resin composition according to the present invention does not require a toxic phthalate-based plasticizer and has high fluidity due to low melt viscosity of the acrylic elastomeric resin.
• due to low viscosity of a solution including the composition volatile organic compounds that may be included in the composition are less emitted.
• the acrylic elastomeric resin of the acrylic elastomeric resin composition according to the present invention has superior compatibility and adhesive properties to a polar resin, the acrylic elastomeric resin composition exhibits superior adhesion to other synthetic resin films (PVC film, etc.) when used as a flooring material after being prepared into a film.
• PVC film, etc. synthetic resin films
• the present invention provides a film prepared using the acrylic elastomeric resin composition.
• calendar-molding, cast-molding, blow-molding, extrusion-molding, etc. may be used.
• the calendar-molding is a method of rolling a raw material between two or more rolls rotating in opposite directions to continuously prepare a sheet or a film.
• the casting molding is a method of laminating after coating a synthetic resin sol, into multiple layers, on release paper that is easily peeled and has superior heat resistance.
• the blow molding is a method of inserting a parison, which is prepared by continuously extruding a heated and melted thermoplastic resin into a tube shape by means of an extruder, to at least one mold and then closing and sealing the same, followed by swelling the parison by blowing air into the parison in a mandrel, thus adhering the parison to an inner wall of the mold to produce a hollow container.
• Extrusion-molding is a method of preparing a thermoplastic plastic material into a fluid state by heating and melting the thermoplastic plastic material on a surface of a base by means of an extruder and then continuously compressing the same into a film state using a T-die.
• the calendar-molding is used since it allows free control of the contents of ingredients such as additives, compared to other methods, and thus, a flooring material having superior flexibility, impact resistance, mechanical strength, processability, fitness and melting efficiency may be provided. Furthermore, raw material costs may be reduced. Therefore, the film is preferably prepared using the calender molding.
• the thickness of the film may be 0.1 to 1.0 mm.
• the film may be transparent.
• a transparent elastic layer may provide an aesthetically pleasing flooring material, due to a printed layer, etc. under the transparent elastic layer when the transparent elastic layer is disposed on a printed layer of the flooring material.
• the film may provide durability to the flooring material and protect the printed layer under the transparent elastic layer.
• the film prepared using the acrylic elastomeric resin composition according to the present invention is nontoxic and eco-friendly, exhibits superior dimensional stability, etc. due to superior elasticity and flexibility, and exhibits superior adhesion to other synthetic resin films (PVC film, etc.).
• a block copolymer was prepared using 40% by weight of methyl methacrylate(MMA), 20% by weight of n-butyl acrylate(BA), and 40% by weight of methacrylonitrile as monomers composing the acrylic elastomeric resin. So as to increase low-temperature impact resistance, heat resistance, etc., living polymerization as a copolymerization method was performed such that polymethyl methacrylate was bonded to both ends of poly n-butyl acrylate. In addition, a structural unit of methacrylonitrile was included upon polymerization of each block.
• PE wax as a lubricant was mixed with a mixed resin based on 100 parts by weight of the mixed resin including 40% by weight of PLA resin and 60% by weight of acrylic elastomeric resin.
• calendar-molding was performed to prepare a transparent film having a thickness of 0.2 mm.
• 70% by weight of methyl methacrylate (MMA) and 30% by weight of n-butyl acrylate (BA) were used as monomers composing the acrylic elastomeric resin to prepare a block copolymer.
• Living polymerization as a copolymerization method was used such that polymethyl methacrylate was bonded to both ends of poly n-butyl acrylate, so as to enhance low-temperature impact resistance, heat resistance, etc.
• PE wax as a lubricant 1 part by weight was mixed with a mixed resin based on 100 parts by weight of the mixed resin composed of 40% by weight of PLA resin and 60% by weight of acrylic elastomeric resin. After mixing, calendar-molding was performed to prepare a transparent film having a thickness of 0.2 mm.
• MMA methyl methacrylate
• BA n-butyl acrylate
• methacrylonitrile methacrylonitrile
• a transparent PVC film (transparent film having thickness of 0.2 mm used as skin layer, manufactured by LG Hausys) having a thickness of 0.2 mm was used.
• MMA methyl methacrylate
• TVOC emission amounts were measured according to Notification No. 2010-24 of the Ministry of Environment, a small chamber method as a standard for an indoor air quality test method. Particularly, a film specimen as a test material was fed into a small chamber having a volume of 20 L connected to a mass spectrometer/high-performance liquid chromatograph (MS/HPLC), and TVOC released from the specimen was collected in the small chamber. The collected TVOC was directly introduced into the mass spectrometer/high-performance liquid chromatograph to measure TVOC in the introduced air.
• MS/HPLC mass spectrometer/high-performance liquid chromatograph
• the whitening degrees were observed by bending the films 180 degrees at room temperature.
• Adhesion was measured according to a 180-degree peel test as an ASTM D903 standard (sample size: width (W): 20 mm, length (H): 140 mm, device: 50 kN universal testing machine available from TA Instruments, and speed: 200 mm/min).
• the film prepared using the acrylic elastomeric resin composition according to the present invention is nontoxic and eco-friendly, has superior elasticity and flexibility, and exhibits superior adhesion to other synthetic resin films (PVC film, etc.).

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• 2015
  • 2015-01-20 KR KR1020150009010A patent/KR101930986B1/ko active IP Right Grant
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  • 2015-12-29 EP EP15879098.0A patent/EP3247746A4/en not_active Withdrawn
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