WO2016027994A1 - 폴리에스테르계 열수축 필름 - Google Patents
폴리에스테르계 열수축 필름 Download PDFInfo
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- WO2016027994A1 WO2016027994A1 PCT/KR2015/007460 KR2015007460W WO2016027994A1 WO 2016027994 A1 WO2016027994 A1 WO 2016027994A1 KR 2015007460 W KR2015007460 W KR 2015007460W WO 2016027994 A1 WO2016027994 A1 WO 2016027994A1
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- shrink film
- dicarboxylic acid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/199—Acids or hydroxy compounds containing cycloaliphatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/60—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/516—Oriented mono-axially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/71—Resistive to light or to UV
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/734—Dimensional stability
- B32B2307/736—Shrinkable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/08—Dimensions, e.g. volume
- B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
- B32B2309/105—Thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2519/00—Labels, badges
Definitions
- the present invention relates to a polyester heat shrink film. More particularly, the present invention relates to a polyester heat shrink film having excellent ultraviolet absorption and heat resistance.
- Heat-shrinkable films are used in plastics, glass bottles, batteries, electrolytic capacitor labels, and overall coating of packaging containers, shrink wrap, shrink labels, and the like.
- heat-shrinkable films polyvinyl chloride (PVC), polystyrene, polypropylene ene, polyester plastic films, and the like are used.
- a film made of polyvinyl chloride is classified as an environmental regulation by generating substances such as hydrogen chloride gas and dioxins during incineration, and in order to recycle the container when the film is used as a shrink label of a PET container, There is a hassle to separate labels and containers from collection.
- the polystyrene-based film has a problem of good work stability according to the shrinkage process and good appearance of the product, but poor chemical resistance, so that an ink having a special composition must be used when printing.
- the dimensions are deformed, such as shrinkage by itself due to lack of storage stability in the silver.
- the polyvinyl chloride (PVC), polystyrene (Polystyrene) film does not have a problem such as environmental, chemical resistance, etc., while the amount of PET container is increased, the need for a separate label separation process when recycling The amount of shrink labels made of ester films is increasing.
- the present invention is to provide a polyester-based heat shrink film having excellent ultraviolet absorption, excellent shrinkage, and heat shrinkable at a low temperature.
- the present invention provides a residue of a dicarboxylic acid component containing an aromatic dicarboxylic acid, 4_ (hydroxymethyl) cyclonucleomethylmethyl 4 '-(hydroxymethyl) cyclonucleic acid carboxylate, and 4,4- (oxy A resin layer comprising a polyester resin comprising residues of a diol component including bis (methylene) bis) cyclonucleic acid methanol; And
- polyester-based heat shrink film comprising the polyester resin, and a second resin layer containing a ultraviolet absorber and formed on at least one surface of the first resin layer.
- residues of a dicarboxylic acid component comprising an aromatic dicarboxylic acid, 4- (hydroxymethyl) cyclonucleomethylmethyl 4 ′-(hydroxymethyl) cyclonucleic acid carboxylate, and A first resin layer comprising a polyester resin comprising a residue of a diuretic component including 4,4- (oxybis (methylene) bis) cyclonucleic acid methane; And a second resin layer including the polyester resin and an ultraviolet absorber, and formed on at least one surface of the first resin layer.
- dicarboxylic acid including aromatic dicarboxylic acid.
- a first resin layer comprising a polyester resin comprising a residue of a diol component including (hydroxymethyl) cyclonucleic acid carboxylate and 4,4— (oxybis (methylene) bis) cyclonucleic acid methanol; And a second resin layer including the polyester resin and an ultraviolet absorber, and formed on at least one surface of the first resin layer, thereby providing a polyester-based heat shrink film having excellent heat resistance and ultraviolet absorption. It was confirmed through the experiment to complete the invention.
- the polyester-based heat shrink film includes a first resin layer containing a polyester resin, a polyester resin, and a second resin layer including an ultraviolet absorber and formed on at least one surface of the first resin layer.
- the resin layer 12 may be laminated on either or both surfaces of the first resin layer.
- the thickness of the entire polyester-based heat shrink film may be lO ⁇ mi to 1 ⁇
- the thickness of the second resin layer may be lOnm to 10 /. This is because when the thickness of the second resin layer is within the above range, it is preferable in terms of price and performance.
- 'residue' means a certain part or unit included in the result of the chemical reaction and derived from the specific compound when the specific compound participates in the chemical reaction.
- each of the 'residue' of the dicarboxylic acid component or the 'residue' of the diol component may be a part or diol component derived from a dicarboxylic acid component in a polyester formed of esterification reaction or condensation polymerization reaction. Means the derived part.
- the diol component used for the synthesis of the polyester resin is 4- (hydroxymethyl) cyclonucleomethylmethyl 4 ′-(hydroxymethyl) cyclonucleic acid carboxylate, and 4,4- (oxybis (methylene) ) Bis) cyclonucleic acid methanol. 4- (hydroxymethyl) cyclonucleomethylmethyl 4'-;
- the (hydroxymethyl) cyclonucleic acid carboxylate is represented by the following general formula (1)
- 4,4- (oxybis (methylene) bis) cyclonucleic acid methanol is represented by the following general formula (2).
- (Hydroxymethyl) cyclonucleic acid carboxylate and 4,4- (oxybis (methylene) bis) cyclonucleic acid methane may each contain 0.1 to 20 mol% based on 100 mol% of the dicarboxylic acid component, preferably Preferably 4— (hydroxymethyl) cyclonucleomethylmethyl 4 ′-(hydroxymethyl) cyclonucleic acid carboxylate 0.1-10 mol% and 4,4- (oxybis (methylene) bis) cyclonucleic acid methanol May contain%.
- the diol component is other than the 4— (hydroxymethyl) cyclonucleomethylmethyl 4 ′-(hydroxymethyl) cyclonucleic acid carboxylate and 4,4- (oxybis (methylene) bis) cyclonucleic acid methanol. It may further comprise a diol component. remind 'Other diol components' except for 4— (hydroxymethyl) cyclonucleomethylmethyl 4 ′-(hydroxymethyl) cyclonucleocarboxylate, and 4,4— (oxybis (methylene) bis) cyclonucleic acid methanol
- Means a diol component and may be, for example, aliphatic diols, aromatic diols or combinations thereof.
- the aromatic diul may contain an aromatic diaryl compound having 8 to 40 carbon atoms, preferably 8 to 33 carbon atoms.
- aromatic diol compounds include polyoxyethylene _ (2.0) -2,2-bis (4-hydroxyphenyl) propane, polyoxypropylene- (2.0) -2,2-bis (4-hydroxyphenyl Propane,
- the aliphatic diol may include an aliphatic diol compound having 2 to 30 carbon atoms.
- aliphatic diol compounds include diethylene glycol, triethylene glycol, propanediol (1,2-propanediol, 1,3-propanedi, etc.), 1,4-butanediol, pentanediol, nucleic acid diol (1, 6 -Dinucleic acid, etc.), neopentyl glycol (2, 2-dimethyl-1, 3-propanedi), 1, 2-cyclonucleodiol, 1,4-cyclonucleodiol, 1, 2-cyclonucleodimethanol, 1 , 3-cyclohexanedimethane, Linear, branched or cyclic aliphatic diols such as 1,4-cyclonucleic acid dimethyl, tetramethylcyclobutanediol, etc. may be mentioned, but specific examples of
- 1,4-cyclohexanedimethane is included among the other diol components described above, diethylene glycol, ethylene glycol, or a mixture thereof, not only the heat resistance of the polyester resin produced is improved, but also chemical resistance, chemical resistance, etc. It is more preferable because its physical properties can be improved.
- the 1,4-cyclohexane dimethanol may contain 0.1 to 15 mol%, diethylene glycol contains 1 to 20 mol%, or 2 to 15 mol%
- the ethylene glycol may be adjusted to 100 mol% of the total diol component within a range that does not particularly affect the deterioration of physical properties, and may include about 30 to 95 mol%.
- the 'dicarboxylic acid component' is an aromatic dicarboxylic acid such as terephthalic acid or an alkyl ester thereof (monomethyl, monoethyl, dimethyl, diethyl or dibutyl ester, lower alkyl having 1 to 4 carbon atoms) Esters) and / or acid anhydrides thereof, and may react with the diol component to form a dicarboxylic acid moiety.
- aromatic dicarboxylic acid such as terephthalic acid or an alkyl ester thereof (monomethyl, monoethyl, dimethyl, diethyl or dibutyl ester, lower alkyl having 1 to 4 carbon atoms) Esters
- the diol component may react with the diol component to form a dicarboxylic acid moiety.
- the dicarboxylic acid component may include an aromatic dicarboxylic acid
- the aromatic dicarboxylic acid component is an aromatic dicarboxylic acid having 8 to 20, preferably 8 to 14 carbon atoms or their marks Or the like.
- the aromatic dicarboxylic acid is more specifically, at least one selected from the group consisting of terephthalic acid, dimethyl terephth late, cycloal iphat ic dicarboxylic acid, isophthal ic acid, adipic acid, azelaic acid, naphthalenedicarboxyl ic acid, and succinic acid. It may include a compound.
- the ultraviolet absorber included in the second resin layer may include at least one selected from the group consisting of benzotriazole, benzophenone, salycylate, cyanoacrylate, oxani 1 ide, and hindered amine light stabilizer (HALS).
- HALS hindered amine light stabilizer
- Such ultraviolet absorbers can be used as a variety of ultraviolet absorbers as described above as an organic UV absorber, a component having a wide uv absorption wavelength range is more effective. If the molecular weight of the UV absorber component is small, the initial UV absorbing ability is excellent, but it is easy to extract and volatilize, so that the capacity is drastically reduced. The blocking effect is somewhat lower than that of the low molecular weight material, but it has excellent ability in the long term.
- polyester-based heat-shrink film name of the embodiment it is suitable to use an additive having a large molecular weight and a wide UV absorption wavelength range, especially a component having a large molecular weight of benzot ri azo le system is more suitable.
- the ultraviolet absorber in the second resin layer may be included in the amount of 0.01 to 3% by weight, more preferably may be included in 0.1 to 0.8% by weight 3 ⁇ 4. It has a UV absorber of 0. This is because the inclusion of less than 1% by weight may result in a lack of expression of the UV blocking effect. In addition, when the content is more than 3% by weight, the molecular weight is lowered, thereby significantly reducing the physical properties and the UV additive component may be exposed to the outside.
- the second resin layer may further include at least one additive selected from the group consisting of an oxidative stabilizer, a thermal stabilizer, a mold release agent, an electrostatic agent, an anti-sticking agent, and an impact modifier, but their content is 1 weight. It is preferable that it is% or less.
- the polyester-based heat-shrink film of the embodiment has a light transmittance of 10% or less at a wavelength of 360 nm or less in terms of ultraviolet absorption, and a light transmittance of 6 (3 or more, at a wavelength of 400 nm) at a wavelength of UVA (320-400 nm) Del ta E may be less than or equal to 1 for 500 hours of exposure.
- the polyester-based heat shrink film has a shrinkage start temperature of 65 ° C or less, preferably 55 to 65 ° C., the maximum heat shrinkage at 65 ° C is less than 50%, preferably 35% or less, 90
- the maximum heat shrinkage at 100 ° C. can be 55 to 90%, preferably 65 to 85%. If the shrinkage start temperature is out of the above range, there is a risk of deformation of the film at room temperature. If the maximum heat shrinkage at 65 ° C is out of the above range, there is a fear that the label is unevenly deformed, shrinkage.
- the heat shrinkable film may not be sufficiently molded (shrink) and may not be used for a label such as a container, cap seal or direct packaging. There is.
- the polyester-based heat shrink film of the embodiment can effectively protect contents from ultraviolet rays by including a resin layer including an ultraviolet absorber, and because it has excellent heat resistance, a high temperature material can be injected into a container to which a heat shrink film is attached. When deformation or shrinkage of the film can be prevented.
- the polyester-based heat shrink film may be prepared by extrusion blowing the polyester resin, or stretched 3 to 6 times in the TDCTransverse Direction) direction using a stretching extruder. More specifically, the method of manufacturing the polyester-based heat shrink film will be described later.
- Method for producing the polyester-based heat shrink film is a dicarboxylic acid component containing an aromatic dicarboxylic acid, 4-
- Preparing a Preparing a composition comprising a resin chip and an ultraviolet absorber prepared in the same manner as the polyester resin chip; And coextruding the prepared polyester resin and the composition, respectively, to prepare an unstretched film, and stretching or blowing the unstretched film.
- the dicarboxylic acid component, diol component, ultraviolet absorber, other additives and the like can be applied without limitation what is described in the polyester-based heat shrink film of the above-described embodiment.
- the polyester resin, and the composition can be prepared in a suitable form, such as chip or pallet form, for the proper progress of co-extrusion.
- the stretching may be performed 3 to 6 times in the width direction (Transverse Di rect ion), preferably, it may be prepared by stretching 3 to 6 times in the width direction using an extrusion blowing or a biaxial stretching extruder. .
- the esterification reaction step required to prepare the polyester resin may be made by reacting the dicarboxylic acid component and the diol component at a pressure of 0 to 10.0 kg / cin 2 and a temperature of 150 to 300 ° C.
- the esterification reaction conditions may be appropriately adjusted according to the specific properties of the polyester to be produced, the molar ratio of the dicarboxylic acid component and glycol, or process conditions. Specifically, preferred examples of the esterification reaction conditions, a pressure of 0 to 5.0kg / cuf, more preferably 0.1 to 3.0 kg / cin 2 ; 200 to 270 ° C, more preferably 240 to 260 ° C temperature is mentioned.
- esterification reaction may be carried out in a batch or continuous manner, and each raw material may be added separately, but it is preferable to add the dicarboxylic acid component to the diol component in the form of a mixed slurry. .
- the step of polycondensation of the esterification reaction product (poly-condensat ion), the esterification reaction product of the dicarboxylic acid component and the diol component 150 to 300 ° C temperature and 600 to 0.01 mmHg under reduced pressure conditions
- the reaction may include the step of reacting for 1 to 24 hours.
- Such polycondensation reaction is, reaction temperature of 150 to 300 ° C, preferably 200 to 290 ° C, more preferably 260 to 28 CTC; And 400 to 0.01 Pa 3, preferably 200 to 0.05 Pa 3, and more preferably 100 to 0.1 mm Hg under reduced pressure.
- glycol which is a byproduct of the polycondensation reaction can be removed to the outside of the system. Accordingly, when the polycondensation reaction is out of the decompression conditions of 400 to 0.01 ⁇ Hg, the removal of the byproduct is insufficient. can do.
- the polycondensation reaction occurs outside the temperature range of 150 to 300 ° C, when the condensation polymerization reaction proceeds to 15 CTC or less, the intrinsic viscosity of the final reaction product is low because it cannot effectively remove glycol as a byproduct of the polycondensation reaction. Physical properties of the polyester resin may be lowered, If the reaction is carried out at 300 ° C. or higher, the appearance of the polyester resin to be produced is likely to be yellow (yel low). The polycondensation reaction can then proceed for the required time, for example, 1 to 24 hours of average residence time, until the intrinsic viscosity of the final reaction product reaches an appropriate level.
- it may further comprise the step of further adding a polycondensation catalyst.
- a polycondensation catalyst may be added to the product of the esterification reaction or transesterification reaction prior to initiation of the polycondensation reaction and added onto a mixed slurry comprising a diol component and a dicarboxylic acid component before the esterification reaction. It may be added during the esterification reaction step.
- Titanium, germanium, and antimony compounds may be used as the polycondensation catalyst, but are not particularly limited thereto.
- the titanium catalyst is a catalyst used as a polycondensation catalyst of a polyester resin in which a co-polymerized cyclohexane dimethanol derivative is 15% or more by weight of terephthalic acid, and can be reacted even when a small amount is used compared to an antimony catalyst.
- the price is lower than that of germanium catalysts.
- titanium catalysts that can be used include tetraethyl titanate, acetyltripropyl titanate, tetrapropyl titanate, tetrabutyl titanate, tetrabutyl titanate, polybutyl titanate, 2-ethylnucleotitanate, and octylene glycol. Titanate, lactate titanate, triethane to amine titanate, acetylacetonate titanate, ethyl acetoacetic ester titanate, isostearyl titanate, titanium dioxide, titanium dioxide and silicon dioxide co-precipitate and titanium dioxad And zirconium dioxide co-precipitates.
- the amount of the polycondensation catalyst may vary depending on the desired color and the stabilizer and colorant used.
- the amount of the polycondensation catalyst is 1 to 100 ppm based on the amount of titanium based on the weight of the final polymer. More preferably, 1 to 50 ppm is good, and 10 ppm or less may be preferable based on the amount of silicon elements. This means that if the amount of titanium is less than lppm, the desired degree of polymerization cannot be reached. If the amount of titanium exceeds lOOppm, the color of the final polymer becomes yellow. Because you can't get the color you want.
- Stabilizers usable in the present invention include phosphoric acid, trimethyl phosphate, triethyl phosphate, triethyl phosphonoacetate, and the like, and the addition amount thereof is preferably 10 to 100 ppm by weight of the final polymer based on the small amount of people. If the amount of stabilizer is less than lOppm, it is difficult to obtain the desired bright color, and if it is more than lOOppm, there is a problem that the desired high polymerization degree cannot be reached.
- the colorants that can be used to improve the color in the present invention include a colorant such as cobalt acetate and cobalt propionate, the addition amount is preferably less than 100ppm relative to the final polymer weight.
- a colorant such as cobalt acetate and cobalt propionate
- the addition amount is preferably less than 100ppm relative to the final polymer weight.
- Known organic compounds can be used as colorants.
- the polyester-based heat shrink film according to the present invention can effectively protect the contents from ultraviolet rays by including a resin layer containing an ultraviolet absorber, and has a low ultraviolet absorbent content as compared to a single layer heat shrink film containing an ultraviolet absorber, and thus is inexpensive to manufacture. There is an advantage.
- polyester-based heat shrink film according to the present invention has excellent heat resistance, deformation or shrinkage of the film can be prevented when a high temperature material is injected into a container to which the heat shrink film is attached.
- the dicarboxylic acid component and diol component were added to a 3 kg batch reactor for 100 mol each and mixed, and the temperature was gradually raised to 255 ° C. to react the esterification.
- 100 moles of terephthalic acid was added as the dicarboxylic acid component, and 2 moles of 4- (hydroxymethyl) cyclonucleic acid carboxylic acid as the diol component, 4,4- (Oxybis (methylene) bis) 6 mol of cyclonucleic acid methanol, 5 mol of 1,4 'cyclohexamethane dimethanol, 10 mol of diethylene glycol, and the remainder of ethylene glycol were added.
- the generated water was discharged to the outside of the system, and when the generation of water and the discharge was completed, the reaction product was transferred to a condensation condenser equipped with a stirrer, a cooling condenser, and a vacuum system.
- Preparation Example 3 Preparation of Polyester Resin Containing Ultraviolet Absorber A resin prepared according to Preparation Example 1 was melt-stirred in an extruder with an ultraviolet absorber in an amount of 1 to 10 phr, and a polyester resin composition containing a polyester resin and an ultraviolet absorber. was prepared in the form of a master chip.
- Preparation Example 4 Preparation of Polyester Resin Containing Ultraviolet Absorber A resin prepared according to Preparation Example 2 was melt-stirred in an extruder with an ultraviolet absorber at 1 to 10 phr, thereby forming a polyester resin composition containing a polyester resin and an ultraviolet absorber. was prepared in the form of a master chip.
- Example 1 Preparation of 2-layer Polyester Heat Shrink Film Master chip of the composition prepared according to Preparation Example 3, and Preparation Example
- the resin prepared according to 1 was melted at 260 to 290 ° C. and co-extruded from a T die, followed by extruding in an angler to obtain an unstretched film.
- the obtained non-stretched film was stretched at a draw rate of 75 to 90 ° C. and a drawing speed of 60 mm / sec, and stretched ratio was 3 to 6 times in the width direction to obtain a polyester-based heat shrink film.
- a polyester-based heat-shrink film was obtained in the same manner as in Example 1 except that the resin prepared according to step 2 was coextruded.
- compositions prepared according to Preparation Example 3 were placed on both sides of the resin prepared according to Preparation Example 2, respectively, and they were melted at 260 to 290 ° C.
- Example 1 After co-extrusion from the T die, it was quenched in an angler to obtain an unstretched film. Thereafter, the stretching process was performed in the same manner as in Example 1 to prepare a heat-shrink film having a three-layer structure in which a second resin layer containing ultraviolet absorbers was formed on both surfaces of the first resin layer. Comparative Example 1
- a polyester-based heat shrink film was obtained in the same manner as in Example 1, except that only the resin prepared in Preparation Example 1 was extruded.
- a polyester-based heat-shrink film was obtained in the same manner as in Example 1, except that only the resin prepared in Preparation Example 2 was extruded.
- a polyester resin chip was manufactured in the same manner as in Preparation Example 1, except that 10 mol of 1,4-cyclonucleodimethane was used as the diol component, 10 mol of diethylene glycol, and 80 mol of ethylene glycol.
- the polyester resin chip was melted at 260 to 29 CTC, extruded from a T die, and then rapidly fed into a square roller to obtain an unstretched film.
- the obtained non-stretched film was stretched 3 to 6 times in the width direction at a stretching temperature of 75 to 90 ° C. and a stretching speed of 60 mm / sec to obtain a polyester-based heat shrink film.
- a polyester resin chip was manufactured in the same manner as in Preparation Example 1, except that 80 mol was used.
- the polyester resin chip was melted at 260 to 29 CTC and extruded from a T die, followed by sharpening in a chamfer to obtain an unstretched film.
- the obtained non-stretched film was stretched at a draw temperature of 75 to 90 ° C. and a drawing speed of 60 mm / sec, and the draw ratio was 3 to 6 times in the width direction to obtain a polyester heat shrink film.
- the heat-shrink film was annealed at 30CTC for 5 minutes, and after cooling to room temperature, the Tg temperature at the second scan was measured at a heating rate of 101: / min.
- delta E was measured using a UV / vis spectrometer (Del ta E is a measure of color change and the larger the color change, the larger the value).
- the heat shrinkable film was cut into a square of 10 cm ⁇ 10 cm, immersed for 10 seconds under no load in hot water at the temperature (65 ° C. and 95 ° C.) described in Table 1, and then heat shrinked, and then placed in water at 25 ° C. After immersion for 10 seconds, the longitudinal and transverse lengths of the sample were measured and the heat shrinkage was calculated according to the following equation.
- Heat Shrinkage (%) ⁇ ⁇ (length before contraction-length after contraction) / (length before contraction)
- the polyester-based heat-shrink film prepared according to Examples 1 to 3 showed a glass transition temperature of 65 ° C. or more, it is excellent in heat resistance.
- the polyester-based heat-shrinkable film exhibits a shrink starting temperature and not more than 65 ° C, a maximum shrinkage in 95 ° C more than 75%, one can confirm the very good heat shrinkage.
- the polyester-based heat shrink film according to the present invention when used as a heat shrink label, it is possible to heat shrink at low temperatures, while excellent in terms of energy saving, and the maximum shrinkage rate is high at a level of 70 to 90%. It is expected to do.
- the polyester-based heat-shrinkable film may be, by including a resin layer including a "ultraviolet absorbing agent, excellent in blocking ability of the ultraviolet light to prevent the deterioration of the content, protected by a heat-shrinkable film, also less the change in color in appearance It is expected to represent aesthetically superior features.
- the polyester multilayer heat-shrink film according to the present invention is useful for application to medical or functional products requiring magnetic shielding function and preventing deformation or shrinkage of the film.
- the specific parts of the present invention have been described in detail above, and it is apparent to those skilled in the art that such specific descriptions are merely preferred embodiments, and thus the scope of the present invention is not limited thereto. something to do. Therefore, the substantial scope of the present invention will be defined by the appended claims and their equivalents.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Polyesters Or Polycarbonates (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15833334.4A EP3184580B1 (en) | 2014-08-19 | 2015-07-17 | Polyester-based thermal shrinkage film |
BR112017002950-2A BR112017002950B1 (pt) | 2014-08-19 | 2015-07-17 | Película de poliéster termo retrátil |
US15/504,595 US11020947B2 (en) | 2014-08-19 | 2015-07-17 | Thermo-shrinkable polyester film |
ES15833334T ES2846813T3 (es) | 2014-08-19 | 2015-07-17 | Película de contracción térmica a base de poliéster |
CN201580044150.5A CN106661246B (zh) | 2014-08-19 | 2015-07-17 | 热收缩聚酯膜 |
JP2017506979A JP6681385B2 (ja) | 2014-08-19 | 2015-07-17 | ポリエステル系熱収縮フィルム |
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KR10-2014-0107738 | 2014-08-19 | ||
KR1020140107738A KR102251211B1 (ko) | 2014-08-19 | 2014-08-19 | 폴리에스테르계 열수축 필름 |
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WO2016027994A1 true WO2016027994A1 (ko) | 2016-02-25 |
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PCT/KR2015/007460 WO2016027994A1 (ko) | 2014-08-19 | 2015-07-17 | 폴리에스테르계 열수축 필름 |
Country Status (9)
Country | Link |
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US (1) | US11020947B2 (ko) |
EP (1) | EP3184580B1 (ko) |
JP (1) | JP6681385B2 (ko) |
KR (1) | KR102251211B1 (ko) |
CN (1) | CN106661246B (ko) |
BR (1) | BR112017002950B1 (ko) |
ES (1) | ES2846813T3 (ko) |
TW (1) | TWI659840B (ko) |
WO (1) | WO2016027994A1 (ko) |
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JP6466425B2 (ja) * | 2013-06-17 | 2019-02-06 | エスケー ケミカルズ カンパニー リミテッド | ポリエチレンテレフタレート樹脂と共重合ポリエステル樹脂を含む熱収縮フィルム形成用組成物、および熱収縮フィルム |
KR102313286B1 (ko) * | 2013-06-17 | 2021-10-14 | 에스케이케미칼 주식회사 | 공중합 폴리에스테르 수지를 포함하는 열수축 필름 |
KR102178899B1 (ko) | 2016-12-26 | 2020-11-13 | 주식회사 엘지화학 | 자외선 안정제를 포함하는 열수축성 튜브를 구비한 원통형 전지셀 |
KR102178893B1 (ko) | 2016-12-26 | 2020-11-13 | 주식회사 엘지화학 | 자외선 흡수제를 포함하는 열수축성 튜브를 구비한 원통형 전지셀 |
CN109921278A (zh) * | 2019-03-28 | 2019-06-21 | 维沃移动通信有限公司 | 激光投射模组 |
CN114641241A (zh) | 2019-09-16 | 2022-06-17 | 卡本有限公司 | 用于增材制造的生物可吸收性树脂 |
KR20210037267A (ko) * | 2019-09-27 | 2021-04-06 | 에스케이케미칼 주식회사 | 폴리에스테르 수지 혼합물, 폴리에스테르 필름 및 이의 제조 방법 |
KR102258535B1 (ko) * | 2019-10-31 | 2021-05-31 | 에스케이씨 주식회사 | 폴리에스테르계 필름 및 이를 이용한 폴리에스테르계 용기의 재생 방법 |
CN111286161A (zh) * | 2020-02-24 | 2020-06-16 | 营口康辉石化有限公司 | 一种抗紫外光聚酯薄膜 |
US11952457B2 (en) | 2021-06-30 | 2024-04-09 | Carbon, Inc. | Bioabsorbable resin for additive manufacturing with non-cytotoxic photoinitiator |
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- 2015-07-17 BR BR112017002950-2A patent/BR112017002950B1/pt active IP Right Grant
- 2015-07-17 EP EP15833334.4A patent/EP3184580B1/en active Active
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Also Published As
Publication number | Publication date |
---|---|
EP3184580A1 (en) | 2017-06-28 |
BR112017002950A2 (pt) | 2017-12-05 |
TWI659840B (zh) | 2019-05-21 |
TW201609393A (zh) | 2016-03-16 |
US20170232721A1 (en) | 2017-08-17 |
KR102251211B1 (ko) | 2021-05-11 |
CN106661246A (zh) | 2017-05-10 |
JP6681385B2 (ja) | 2020-04-15 |
BR112017002950B1 (pt) | 2021-11-30 |
JP2017526557A (ja) | 2017-09-14 |
EP3184580B1 (en) | 2020-11-04 |
EP3184580A4 (en) | 2018-04-11 |
US11020947B2 (en) | 2021-06-01 |
KR20160022090A (ko) | 2016-02-29 |
CN106661246B (zh) | 2020-10-23 |
ES2846813T3 (es) | 2021-07-29 |
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