WO2023218848A1 - Composition de résine pour former un film de polypropylène, film de polypropylène et corps multicouche - Google Patents

Composition de résine pour former un film de polypropylène, film de polypropylène et corps multicouche Download PDF

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Publication number
WO2023218848A1
WO2023218848A1 PCT/JP2023/014906 JP2023014906W WO2023218848A1 WO 2023218848 A1 WO2023218848 A1 WO 2023218848A1 JP 2023014906 W JP2023014906 W JP 2023014906W WO 2023218848 A1 WO2023218848 A1 WO 2023218848A1
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film
antioxidant
resin composition
light stabilizer
polypropylene
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PCT/JP2023/014906
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English (en)
Japanese (ja)
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浩介 高柳
雄太 桶屋
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凸版印刷株式会社
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Publication of WO2023218848A1 publication Critical patent/WO2023218848A1/fr

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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
    • 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
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/32—Compounds containing nitrogen bound to oxygen
    • 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
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3432—Six-membered rings
    • C08K5/3435—Piperidines
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene

Definitions

  • the present invention relates to a resin composition for forming a polypropylene film, a polypropylene film, and a laminate.
  • Films made from polypropylene resin have excellent transparency, gloss, heat resistance, etc., and are therefore used in various fields such as packaging and industry.
  • films made of polyethylene, polyethylene terephthalate, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, etc., aluminum foil, etc. are added to polypropylene film.
  • Various laminated bodies are also known.
  • antioxidants reduce the molecular weight of polypropylene due to the effects of heat from the extruder during film formation, shear force from the extruder screw, or catalyst residue contained in the polypropylene resin. It is added to prevent the progress of oxidative deterioration.
  • primary antioxidants such as hindered phenol antioxidants, which have a primary antioxidant function that captures peroxy radicals (ROO ⁇ ), and phosphorus-based antioxidants, etc. It is common to add it to polypropylene resin in combination with a secondary antioxidant that has a secondary antioxidant function that decomposes hydroperoxide (ROOH), such as antioxidants and sulfur-based antioxidants. It is.
  • ROOH hydroperoxide
  • Phosphorous antioxidants which are secondary antioxidants, undergo a hydrolysis reaction to produce phosphorous acid when stored alone before film formation and during the storage process after film formation. It has been known. When phosphorous acid is produced, the antioxidant performance is reduced and at the same time, it causes damage such as staining to equipment such as extruders and take-off machines.
  • Irgafos168 main component: tris(2,4-di-t-butylphenyl) phosphite
  • BASF Japan Co., Ltd. shown in formula (1)
  • Patent Document 1 discloses the use of the above-mentioned phosphite antioxidant in combination with a phenolic antioxidant, a lactone antioxidant, or the like.
  • the above-mentioned phosphite-based antioxidants can prevent the progress of the hydrolysis reaction, but at the same time, the affinity for oxygen atoms and the performance as an antioxidant may decrease, so it is difficult to obtain sufficient antioxidant effects. It is necessary to increase its content.
  • the antioxidant and its decomposition products are deposited on the film surface during film formation, during post-processes such as lamination after film formation, or during storage after film formation. There is a risk that the product may bleed out, staining equipment such as extruders and take-off machines, and causing trouble during post-processing.
  • the present invention was made in view of the above circumstances, and provides a resin composition for forming a polypropylene film that can exhibit processing stability during film formation and long-term thermal stability after film formation while suppressing the amount of additives used.
  • the purpose is to Another object of the present invention is to provide a polypropylene film obtained using the resin composition, and a laminate including the polypropylene film.
  • a polypropylene film-forming resin composition according to one aspect of the present invention includes a polypropylene resin, a hindered amine light stabilizer having a function of capturing carbon radicals, and a hydroxylamine having a primary antioxidant function and a secondary antioxidant function.
  • a system antioxidant includes a hindered amine light stabilizer having a function of capturing carbon radicals, and a hydroxylamine having a primary antioxidant function and a secondary antioxidant function.
  • the above resin composition contains a hindered amine light stabilizer that has the function of capturing carbon radicals (R.) and a hydroperoxide that has the function of capturing peroxy radicals (ROO.) during the oxidative deterioration cycle of polypropylene resin. It also contains a hydroxylamine-based antioxidant that also has the function of decomposing (ROOH).
  • the ability to suppress oxidative deterioration of polypropylene resin due to the heat of the extruder during film formation (processing stability), and the ability to suppress oxidative deterioration of polypropylene resin during storage after film formation (long-term thermal stability) are obtained. be able to.
  • the hydroxylamine-based antioxidant may be dialkylhydroxylamine.
  • the hydroxylamine-based antioxidant may be bis-octadecylhydroxylamine.
  • the weight average molecular weight of the hindered amine light stabilizer may be less than 2,000.
  • the hindered amine light stabilizer may be bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate.
  • the content of the light stabilizer may be 150 mass ppm or more, and the content of the antioxidant is 150 mass ppm, based on the total amount of the polypropylene resin, the light stabilizer, and the antioxidant. or more, and the total content of the light stabilizer and antioxidant may be 2500 mass ppm or less.
  • a polypropylene film according to one aspect of the present invention is formed from the above resin composition.
  • the melt flow rate (according to JIS K6921-2, temperature 230° C., load 2.16 kg) may be 20.0 g/10 min or less.
  • a laminate according to one aspect of the present invention includes the above film.
  • the present invention it is possible to provide a resin composition for forming a polypropylene film that can exhibit processing stability during film formation and long-term thermal stability after film formation while suppressing the amount of additives used. Further, according to the present invention, it is possible to provide a polypropylene film obtained using the resin composition and a laminate including the polypropylene film.
  • the polypropylene film-forming resin composition includes a polypropylene resin, a hindered amine light stabilizer that has a function of capturing carbon radicals, and a hydroxylamine-based antioxidant that has a primary antioxidant function and a secondary antioxidant function.
  • the resin composition for forming a polypropylene film may be simply referred to as a resin composition.
  • Polypropylene resins include homopolymer (propylene homopolymer), which is a polymer of only propylene, random copolymer (propylene/ethylene random copolymer), which is a copolymer of propylene and ethylene, and ethylene-propylene in homopolymer. Examples include block copolymers (propylene/ethylene block copolymers) having a structure in which polymers are interspersed, and any of the polymers can enjoy the effects of the light stabilizer and antioxidant. Further, the stereoregularity of the polypropylene resin may be any of isotactic, syndiotactic, and atactic. When polymerizing the polypropylene resin, any known catalyst such as a Ziegler-Natta catalyst or metallocene catalyst may be selected, and any known production method may be used.
  • any known catalyst such as a Ziegler-Natta catalyst or metallocene catalyst may be selected, and any known production method may be used.
  • a hindered amine light stabilizer As the light stabilizer, a hindered amine light stabilizer is used which has a function of capturing carbon radicals (R.) during the oxidative deterioration cycle of polypropylene resin. Hindered amine light stabilizers are known to exhibit the function of capturing carbon radicals in a low temperature range (approximately 150° C. or lower), and are likely to exhibit long-term thermal stability after film formation.
  • the light stabilizer preferably includes a hindered amine light stabilizer having a weight average molecular weight of less than 2000.
  • the light stabilizer In a film formed using a resin composition containing such a light stabilizer, the light stabilizer easily migrates inside the film. Therefore, when the light stabilizer near the film surface layer is consumed, new light stabilizer is easily replenished, making it easier to exhibit long-term thermal stability.
  • the weight average molecular weight can be 1500 or less, may be 1000 or less, or may be 500 or less.
  • the light stabilizer may further include a hindered amine light stabilizer having a weight average molecular weight of 2000 or more.
  • a hindered amine light stabilizer having a weight average molecular weight of 2000 or more This makes it difficult for the light stabilizer to bleed out onto the film surface, making it easier to prevent staining of equipment such as an extruder and take-off machine and troubles during post-processes.
  • the amount of hindered amine light stabilizer with a weight average molecular weight of less than 2000 contained in the light stabilizer should be 20% by mass or more, 50% by mass or more, or 80% by mass. % or more, and may be 100% by mass.
  • the lower limit of the weight average molecular weight can be set to 500 or more from the viewpoint of easily developing long-term thermal stability.
  • hindered amine light stabilizers with a weight average molecular weight of less than 2000 include bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate (molecular weight: 480.72) and bis(1,2 malonate). ,2,6,6-pentamethyl-4-piperidinyl)-[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]butyl (molecular weight: 685), N,N'-bis (2,2,6,6-tetramethyl-4-piperidyl)-N,N'-diformylhexamethylene diamine (molecular weight: 451) and the like.
  • a hydroxylamine-based antioxidant As the antioxidant that has (also has) a primary antioxidant function and a secondary antioxidant function, a hydroxylamine-based antioxidant is used. Hydroxylamine-based antioxidants have both the function of capturing peroxy radicals (ROO.) and the function of decomposing hydroperoxides (ROOH) in the cycle of oxidative deterioration of polypropylene resin.
  • ROO. peroxy radicals
  • ROOH hydroperoxides
  • dialkylhydroxylamine which has two hydrocarbon groups added to the nitrogen atom of hydroxylamine.
  • Dialkylhydroxylamine has good compatibility with polypropylene resin and is easily dispersed uniformly within the polypropylene resin, so that it can more effectively exhibit the antioxidant function of the polypropylene resin.
  • the hydrocarbon group is preferably a saturated linear hydrocarbon group, and the number of carbon atoms contained in the hydrocarbon group is preferably 12 or more. .
  • hydrocarbon group examples include dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, heptadecyl group, octadecyl group, and the like.
  • dialkylhydroxylamine it is particularly preferable to use bis-octadecylhydroxylamine.
  • bis-octadecylhydroxylamine in addition to the function of preventing oxidative deterioration of polypropylene resin, it also prevents discoloration of the film and decomposition of polypropylene resin when the formed film is irradiated with radiation such as gamma rays or electron beams. A function to prevent this can be added.
  • the antioxidant may further contain another antioxidant having a primary antioxidant function or a secondary antioxidant function.
  • Other antioxidants include antioxidants that have a primary antioxidant function that captures peroxy radicals (ROO), such as hindered phenol antioxidants, phosphorus antioxidants, and sulfur antioxidants.
  • ROO peroxy radicals
  • examples include secondary antioxidants having a secondary antioxidant function of decomposing hydroperoxide (ROOH) such as ROOH.
  • ROOH hydroperoxide
  • the amount of hydroxylamine-based antioxidant contained in the antioxidant should be 50% by mass or more or 80% by mass or more. is preferable, and may be 100% by mass.
  • hindered phenol antioxidants examples include 2,6-di-tert-butyl-4-methylphenol, stearyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, and tetrakis[ Examples include pentaerythritol (3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid).
  • the content of the light stabilizer is preferably 150 mass ppm or more, and the antioxidant content is preferably 150 mass ppm or more, based on the total amount of the polypropylene resin, light stabilizer, and antioxidant. Thereby, it is easy to obtain the effect of preventing oxidative deterioration of the polypropylene resin.
  • the content of the light stabilizer is more preferably 250 mass ppm or more or 500 mass ppm or more, and the antioxidant content is more preferably 250 mass ppm or more or 500 mass ppm or more.
  • the total content of the light stabilizer and antioxidant is preferably 2500 mass ppm or less based on the total amount of the polypropylene resin, light stabilizer, and antioxidant.
  • the total content of the light stabilizer and antioxidant is more preferably 2000 mass ppm or less, or 1500 mass ppm or less.
  • the content of the light stabilizer can be 1250 mass ppm or less, and the antioxidant content can be 1250 mass ppm or less.
  • the mass ratio of the light stabilizer content to the antioxidant content is preferably 0.1 to 2, and preferably 0.2 to 1. It is more preferable that there be. Thereby, it is easy to obtain the effect of preventing oxidative deterioration of the polypropylene resin.
  • the resin composition contains, as other components, a neutralizing agent to neutralize catalyst residue, a nucleating agent to act as a core during crystallization of polypropylene, a lubricant to reduce the coefficient of friction on the film surface, and a film to be wound.
  • a neutralizing agent to neutralize catalyst residue
  • a nucleating agent to act as a core during crystallization of polypropylene
  • a lubricant to reduce the coefficient of friction on the film surface
  • a film to be wound a film to be wound.
  • Ingredients such as anti-blocking agents to prevent blocking when stored in the removed state, anti-static agents to prevent foreign matter from adhering to the film surface and the film from being charged and adhering to processing machines and other films (other additives) may be included as appropriate depending on the actual use.
  • a polypropylene film is formed from the above resin composition for forming a polypropylene film.
  • various methods such as hot pressing, extrusion molding, casting molding, and calender molding can be appropriately selected.
  • the polypropylene film may be subjected to various stretching processes such as uniaxial stretching, sequential biaxial stretching, simultaneous biaxial stretching, and multistage stretching.
  • the melt flow rate (according to JIS K6921-2, temperature 230° C., load 2.16 kg) of the polypropylene film is preferably 20.0 g/10 min or less. This indicates that the light stabilizer and antioxidant function sufficiently and that oxidative deterioration of the polypropylene resin tends to be difficult to progress due to the heat of the extruder during film formation.
  • the melt flow rate is more preferably 13.0 g/10 min or less. When the melt flow rate exceeds 20.0 g/10 min, the melt viscosity of the polypropylene resin is low and the discharge amount from the T-die is difficult to stabilize, so the thickness of the film formed tends to fluctuate easily. Furthermore, the impact resistance of the formed film tends to decrease.
  • the lower limit of the melt flow rate is not particularly limited, but when using the above-mentioned polypropylene resin, it can be set to 3.0 g/10 min or more.
  • the type and amount of the light stabilizer and antioxidant in the polypropylene film can be determined, for example, by an elution test (a method in which the film is immersed in a solvent to extract additives such as the antioxidant).
  • the stability (degree of decomposition) of the additive in the polypropylene film can be evaluated, for example, as follows. When the peak area value ratio ((BB')/(AA')) shown below is 1.0 or more and less than 1.6, the decomposition of the additive is difficult to proceed and the additive is stable. It can be said that it is a polypropylene film that exists.
  • the peak area value ratio is preferably 1.5 or less, more preferably 1.4 or less.
  • ⁇ Peak area value ratio calculation method> A polypropylene film is cut into A4 size (width direction 210 mm x flow direction 291 mm) and stored in a constant temperature machine at a set temperature of 150° C. for 60 days. This performs a deterioration treatment on the polypropylene film. The films before and after the deterioration treatment are each cut into 10 cm square pieces, cut into strips, placed in a vial, and 10 ml of ethanol is added and sealed. The area of the film in contact with ethanol (liquid contact area) is adjusted to be 0.05 ml/cm 2 or less.
  • the obtained ethanol extract is collected and subjected to GC/MS analysis.
  • the obtained total ion chromatogram is analyzed by GC/MS analysis. From the total ion chromatogram of the film extract before deterioration treatment, the baseline was subtracted from the peaks at retention times of 6 to 40 minutes to determine the total peak area value (A). ) is calculated by subtracting the peak area value (A') of (AA').
  • the hydrocarbon peaks are compared with the peaks detected in the polypropylene film without additives, and the peaks with the same retention time and mass spectrum are targeted.
  • the peak area value (B) of hydrocarbons is subtracted to calculate (BB'). From these results, the peak area value ratio ((BB')/(AA')) is calculated.
  • the thickness of the polypropylene film is not particularly limited, but can be 10 to 300 ⁇ m. If the thickness is 10 ⁇ m or more, troubles such as breakage or tearing during the process after film formation or during film handling will be less likely to occur, and if the thickness is 300 ⁇ m or less, the film will not be easily damaged during winding after film formation. Troubles such as curling or loose winding due to insufficient tension are less likely to occur.
  • the laminate includes the polypropylene film described above.
  • a polypropylene film may be produced as a single layer film, but it can be made into two or more layers by using multiple extruders and coextruding the same or different types of polypropylene resin by a feed block method or a multi-manifold method. It may also be formed as a multilayer film. That is, the laminate can include a plurality of polypropylene films of the same or different types.
  • the laminate can include various layers known as packaging materials on one or both sides of a single-layer or multi-layer polypropylene film.
  • layers include a sealant layer, a metal foil layer, a vapor deposition layer (aluminum vapor deposition layer, alumina vapor deposition layer, silica vapor deposition layer, etc.), a printing layer, an adhesive layer, a surface protection layer, and the like.
  • These layers can be laminated by known methods such as dry lamination, thermal adhesion, printing on the film surface, coating, vapor deposition, and the like. Note that by providing a vapor deposited layer on a polypropylene film, it can be suitably used as a film having barrier stability while suppressing the antioxidant content.
  • Examples of the laminate include the following. A laminate having a layer structure of polypropylene (20 ⁇ m)/polyethylene (60 ⁇ m), which is obtained by coextruding the above polypropylene resin and polyethylene resin. A laminate having a layer structure of polypropylene (20 ⁇ m)/ethylene-vinyl alcohol copolymer (15 ⁇ m)/polyethylene (60 ⁇ m), which is obtained by coextruding the above polypropylene resin, ethylene-vinyl alcohol copolymer resin, and polyethylene resin.
  • Example 1 PX600N (propylene homopolymer) manufactured by Sun Allomer Co., Ltd. was used as a raw material for the polypropylene resin.
  • Chiguard 770 main component: bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate
  • Chitec Technology Co., Ltd. which is a hindered amine light stabilizer
  • bis-octadecylhydroxylamine which is a hydroxylamine-based antioxidant having a primary antioxidant function and a secondary antioxidant function, was used.
  • Example 2-4 Comparative Examples 1-4
  • a film was formed in the same manner as in Example 1, except that the amounts of Chiguard 770 and bis-octadecylhydroxylamine were changed as shown in Table 1.
  • Irganox 1010 (mainly manufactured by BASF Japan Co., Ltd.), which is a hindered phenol antioxidant that has a primary antioxidant function (has only the function of a primary antioxidant), is used.
  • Comparative example 6 A film was formed in the same manner as in Comparative Example 5, except that the amounts of Irganox 1010 and Irgafos 168 were changed as shown in Table 1.
  • melt flow rate (MFR) of each film in accordance with JIS K6921-2 was measured using a melt indexer (FF-01) manufactured by Toyo Seiki Seisakusho Co., Ltd.
  • the set temperature of the melt indexer was 230°C.
  • the film of each example was cut into a size of about 5 mm square to prepare a sample.
  • the weight of the sample was approximately 5 g (approximately 5 ⁇ 1 g). This sample was placed in a melt indexer, and the mass of resin discharged in 30 seconds was measured with a load of 2.16 kg applied. This measured value was multiplied by 20 to calculate the MFR value.
  • Table 1 The results are shown in Table 1.
  • the film of the example was formed by adding Chiguard 770, a light stabilizer that has the function of capturing carbon radicals, and bis-octadecylhydroxylamine, which has both primary and secondary antioxidant functions.
  • the melt flow rate value was kept low compared to the film of Comparative Example 1, which was formed without adding any antioxidant, and the films of Comparative Example 2 and Comparative Example 3, which were formed by adding only Chiguard 770. It was getting worse.
  • the examples show that the oxidative deterioration of the polypropylene resin due to the heat of the extruder is relatively difficult to progress, and the processing stability is good.
  • the film of each example was cut into an A4 size (210 mm in the width direction x 291 mm in the machine direction) and stored in a constant temperature machine (HT310) manufactured by ESPEC Co., Ltd. at a set temperature of 150° C. for 60 days. This subjected the film to deterioration treatment.
  • the films of each example before and after the deterioration treatment were cut into 10 cm square pieces, cut into strips, placed in a vial, and 10 ml of ethanol (manufactured by Kanto Kagaku, special reagent grade, 99.5% purity) was added and sealed.
  • the area of the film in contact with ethanol was adjusted to be 0.05 ml/cm 2 or less.
  • the vial was stored in a dry oven (DO-450A manufactured by As One) set at 60° C. for 10 days. Thereafter, the obtained ethanol extract was collected and subjected to GC/MS analysis.
  • GC/MS analysis conditions are shown below.
  • Device model number GC6890/5973MSD (manufactured by Agilent Technologies) ⁇ GC conditions>
  • Runtime 44.00min.
  • Carrier gas He (constant flow mode: 1.0ml/min.)
  • Pulse pressure 20psi Pulse time: 1.5min.
  • the film extract of each example was analyzed by GC/MS under the above analysis conditions, and the resulting total ion chromatogram was analyzed using MSD ChemStation (E.02.02.1431). From the total ion chromatogram of the film extract before deterioration treatment, the baseline was subtracted from the peaks at retention times of 6 to 40 minutes to determine the total peak area value (A). ) was calculated by subtracting the peak area value (A') of (AA'). At this time, a peak detected in a polypropylene film without additives (Comparative Example 1) was compared, and a peak with the same retention time and mass spectrum was determined to be a hydrocarbon peak.
  • the total peak area value (B) was determined in the same manner as above, and then the peak area value (B') of hydrocarbons was subtracted to calculate (BB'). From these results, the peak area value ratio ((BB')/(AA')) was calculated. As an example, in Example 1, (AA') was 55,220,614, (BB') was 65,986,934, and the value of (BB')/(AA') was approximately 1.2. .
  • the peak area value ratios of all examples are shown in Table 2.
  • the resin composition for forming a polypropylene film in the present disclosure can suppress oxidative deterioration of the polypropylene resin during film formation and over a long period of time after film formation.
  • the polypropylene film produced from the resin composition can be expected to be used in various fields such as flexible packaging materials, electronics packaging materials, medical/pharmaceutical packaging materials, toiletry products, liquid composite paper containers, and chilled/frozen food packaging materials. .

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  • 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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

La présente invention concerne une composition de résine pour former un film de polypropylène, la composition de résine contenant : une résine de polypropylène ; un photostabilisant à amine encombrée qui a une fonction de piégeage de radicaux de carbone ; et un antioxydant à base d'hydroxylamine qui a une fonction antioxydante primaire et une fonction antioxydante secondaire.
PCT/JP2023/014906 2022-05-11 2023-04-12 Composition de résine pour former un film de polypropylène, film de polypropylène et corps multicouche WO2023218848A1 (fr)

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JP2022077870A JP2023167039A (ja) 2022-05-11 2022-05-11 ポリプロピレンフィルム形成用樹脂組成物、ポリプロピレンフィルム、及び積層体
JP2022-077870 2022-05-11

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60101132A (ja) * 1983-10-11 1985-06-05 チバ‐ガイギー　アクチエンゲゼルシヤフト ヒドロキシルアミン誘導体の使用により劣化に対して安定化されたポリオレフイン組成物
JPH11263886A (ja) * 1997-12-18 1999-09-28 Montell North America Inc 延性及びγ線耐性のポリオレフィン組成物及びそれから製造される物品
JP2005530002A (ja) * 2002-06-13 2005-10-06 バーセル ポリオレフィン イタリア ソシエタ ペル アチオニ ポリオレフィンナノコンポジットの調製方法
WO2020089268A1 (fr) * 2018-10-30 2020-05-07 Borealis Ag Article moulé comprenant une composition de polypropylène appropriée pour une stérilisation par rayons gamma

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60101132A (ja) * 1983-10-11 1985-06-05 チバ‐ガイギー　アクチエンゲゼルシヤフト ヒドロキシルアミン誘導体の使用により劣化に対して安定化されたポリオレフイン組成物
JPH11263886A (ja) * 1997-12-18 1999-09-28 Montell North America Inc 延性及びγ線耐性のポリオレフィン組成物及びそれから製造される物品
JP2005530002A (ja) * 2002-06-13 2005-10-06 バーセル ポリオレフィン イタリア ソシエタ ペル アチオニ ポリオレフィンナノコンポジットの調製方法
WO2020089268A1 (fr) * 2018-10-30 2020-05-07 Borealis Ag Article moulé comprenant une composition de polypropylène appropriée pour une stérilisation par rayons gamma

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