WO2015183036A1 - Film stratifié pour emballage d'aliment stérilisé en autoclave à résistance à la perforation et à la décoloration améliorée - Google Patents

Film stratifié pour emballage d'aliment stérilisé en autoclave à résistance à la perforation et à la décoloration améliorée Download PDF

Info

Publication number
WO2015183036A1
WO2015183036A1 PCT/KR2015/005418 KR2015005418W WO2015183036A1 WO 2015183036 A1 WO2015183036 A1 WO 2015183036A1 KR 2015005418 W KR2015005418 W KR 2015005418W WO 2015183036 A1 WO2015183036 A1 WO 2015183036A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
resistance
laminated film
parts
retort food
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2015/005418
Other languages
English (en)
Korean (ko)
Inventor
박형우
김상희
이호준
민소라
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Korea Food Research Institute KFRI
Original Assignee
Korea Food Research Institute KFRI
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020140066098A external-priority patent/KR101568009B1/ko
Priority claimed from KR1020140066060A external-priority patent/KR101568006B1/ko
Application filed by Korea Food Research Institute KFRI filed Critical Korea Food Research Institute KFRI
Publication of WO2015183036A1 publication Critical patent/WO2015183036A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes

Definitions

  • the present invention relates to a laminated film for retort food packaging having improved puncture resistance and discoloration resistance.
  • the hygienicity of the processed food to be packaged and the barrier property for the contents preservation are important, but the resistance to physical forces transmitted from the outside is also one of the important factors. Since the scars of nipples and the like are strictly checked, hygiene and safety of soft packaging materials are increasingly demanded.
  • the propylene-ethylene copolymer having a ethylene component of 1.5 to 3.5% by weight, a melt index of 5 g / 10min or more, and an amount of extracted component of 20% by weight or less can be obtained.
  • a polypropylene unstretched film produced from a composition with an ethylene copolymer having a value of 0.91 g / cm 3 or less is disclosed.
  • the polypropylene unstretched film described in Japanese Unexamined Patent Publication No. 5-252900 does not sufficiently satisfy the impact resistance and strength required for the soft packaging material used in the retort pouch, and lacks heat resistance and dimensional stability at high temperatures during retort processing. Still has problems.
  • Japanese Patent Application Laid-Open No. 59-115312 discloses propylene, ethylene and / or ⁇ -olefins and copolymers having 4 to 12 carbon atoms, but recently, retort food packaging materials are sterilized such as shortening sterilization time and sterilizing heat resistant bacteria. Since the sterilization temperature is gradually increased from 121 ° C./30min, 135 ° C./8min to 150 ° C./2min to improve the efficiency of the process, the prior art has experienced many difficulties in providing a high heat resistant retort food packaging material that meets these requirements. have.
  • Disadvantages of polyolefins include discoloration that occurs after manufacture or after processing. Discoloration of polyolefins can be caused by a variety of causes. In particular, it can occur frequently in the case of continuous contact with water or light, and for this reason, a selectivity control agent or stabilizer is added to cope with it.
  • US Pat. No. 4,298,509 discloses refractory polyolefin fibers containing metal oxide hydrates with hydrogenated organic compounds, ammonium-polyphosphates or metal borates. Similar additives for polyolefin resins include hydrotalcite or synthetic hydrotalcite [Mg 6 Al 2 (OH) 16 ] (CO 3 ) (H 2 O) 4 which generates carbon dioxide upon heating. However, it is still known to be inadequate for use directly in polyolefin resins prepared through solution polymerization techniques.
  • a material for retort food packaging film generally referred to as a high retort
  • the present invention is stable under the sterilization treatment condition of 150 ° C./2min, which has been recently adopted, and is a novel retort food having no orange peel generated due to dimensional stability deterioration due to heat shrinkage by heat treatment. It is an object of the present invention to provide a packaging film and a novel retort food packaging film material which is excellent in transparency capable of confirming the state of internal food and excellent in impact resistance and discoloration resistance.
  • an object of the present invention is to provide a novel retort food packaging film that improves heat resistance without impairing transparency by adding nano inorganic particles to a polypropylene resin composition based on polypropylene.
  • the present invention is a base made of polypropylene on one side of the high heat-resistant composite film to solve the problem that the heat resistance is increased by adding the nano-inorganic particles, the surface bending caused by the nano-inorganic particles are damaged in the long term It is an object of the present invention to provide a novel novel retort food packaging film which further improves heat resistance and water resistance without impairing transparency by laminating film layers.
  • the present invention is to provide a novel retort food packaging film further comprises a puncture composition of a mixture of polybutadiene and cis-1,4-polyisoprene in order to further increase the puncture resistance.
  • the present invention is 5 to 40 parts by weight of the cyclic olefin having a special structure with respect to 100 parts by weight of polypropylene resin, 0.5 to 20 parts by weight of polyolefin rubber or polyolefin elastomer, 0.1 to 5 parts by weight of the puncture resistant composition, 0.1 to 5 parts by weight of the silane compound It is to provide a novel retort food packaging film for forming a composite composition layer by co-extruding the composite composition on one side of the new retort food packaging composite composition and 5 parts by weight and 1 to 20 parts by weight of nano-inorganic particles. .
  • the present invention provides a novel retort food packaging film comprising 5 to 20 parts by weight of a cyclic olefin having a special structure and 0.5 to 5 parts by weight of a polyolefin rubber or polyolefin elastomer with respect to 100 parts by weight of polypropylene resin. .
  • the base resin layer is a portion directly surrounding the food contents, which is resistant to chemical changes, and thus does not affect food, and additionally has a moisture barrier property to prevent deterioration of food.
  • the base resin layer may be made of a polypropylene resin.
  • the polypropylene resin includes a polypropylene homopolymer or copolymer containing propylene as a main component, and the weight average molecular weight of the polypropylene resin is not particularly limited, but is 80,000 to 500,000, preferably 100,000 to 400,000. If the weight average molecular weight of the polypropylene resin is less than 80,000, the impact resistance of the food packaging film for retort obtained is not sufficiently given, and if the weight average molecular weight of the polypropylene resin exceeds 500,000, the food for retort can be obtained. The flexibility of the packaging film is impaired and commodity value is lowered, which is not good.
  • polypropylene resin in the present invention examples include, but are not particularly limited to, homo polypropylene, random copolymer polypropylene, block copolymer polypropylene, and the like.
  • the melt index (ASTM D1238) of the polypropylene resin is preferably in the range of 10 g / 10 min or less and 2 to 10 g / 10 min at 230 ° C./2.16 kg. Among them, but not limited to the melting index range (for example, Sec-M1315) and the like.
  • propylene is the main component and any one selected from ethylene, 1-butene, 1-pentene, 1-hexene, 4-methyl-1-pentene, 1-heptene, and 1-octene or Copolymerization of two or more olefin monomers is preferred.
  • Specific examples of the copolymer mean polypropylene copolymerized mainly with 1 to 10% by weight of the comonomer as a comonomer.
  • the impact resistance may be further increased while maintaining the heat resistance within the range of the content of the homo polypropylene or the comonomers in the above range.
  • the content of the comonomer is more than 10% by weight, the melting point of the film for food packaging is lowered, so that the heat shrinkage rate is increased during retort processing and it is easy to cause blocking.
  • the composite composition layer is formed on one surface of the base resin layer, and has a disadvantage of polypropylene constituting the base resin layer, that is, having a nonpolar group, which has excellent moisture barrier property, but fine brown movement of molecules due to low Tg.
  • a disadvantage of polypropylene constituting the base resin layer that is, having a nonpolar group, which has excellent moisture barrier property, but fine brown movement of molecules due to low Tg.
  • the polypropylene resin may be formed of the same or different components as the base resin layer.
  • homo polypropylene, random copolymer polypropylene, block copolymer polypropylene or the like is preferably used.
  • the cyclic polyolefin is not limited as long as it includes the cyclic olefin unit of Formula 1 below, and by using the component of the present invention, transparency and heat resistance can be significantly increased, and water resistance can be increased.
  • R is C1-C20 alkyl.
  • composition according to the present invention may use a cyclic olefin copolymer including the structural unit of Formula 1 and the structural unit of Formula 2, but is not limited thereto.
  • the cyclic polyolefin may contain 80% by weight or more of the unit of Formula 1.
  • a cyclic olefin copolymer containing 0.01 to 20% by weight in 100% by weight of the total cyclic polyolefin copolymer may be used. If the above range is used, the heat resistance may be too high, which may be a problem in processing, and may not be sufficiently dispersed in the polypropylene matrix, which may cause pinholes.
  • the present invention may further comprise a cyclic olefin unit containing a carboxylic acid metal base group of the following cyclic olefin copolymer, the formula 3, according to the invention even if less copolymers
  • the heat resistance of the film can be significantly increased, and furthermore, transparency can be further increased.
  • X is any one of metal ions selected from alkali metals, alkaline earth metals and transition metals.
  • the substituted metal ions of the metal carboxylate are lithium ions, sodium ions, potassium ions, magnesium ions, Any one of calcium ions, barium ions, nickel ions, copper ions, and zinc ions can be selected, but is not limited so long as it falls within the category of X.
  • the cyclic olefin copolymer having a total content of the metal carboxylic acid base in the cyclic olefin copolymer of 0.01 to 7% by weight is more preferable because it is suitable for achieving flexibility and various physical properties required by the present invention.
  • the sum of the structural units may be 0.01 to 20% by weight based on 100% by weight of the total structure.
  • the cyclic olefin represented by Chemical Formula 1 is a norbornene carboxylic acid alkyl ester, and specific examples thereof include norbornene carboxylic acid methyl ester, norbornene carboxylic acid ethyl ester, and norbornene carboxylic acid n-.
  • norbornene carboxylic acid iso-propyl ester, norbornene carboxylic acid n-butyl ester, norbornene carboxylic acid t-butyl ester, norbornene carboxylic acid n-pentyl ester, norbornene Carboxylic acid n-hexyl ester, norbornene carboxylic acid cyclohexyl ester, norbornene carboxylic acid n-heptyl ester, norbornene carboxylic acid 1,4-dimethylpentyl ester, norbornene carboxylic acid n -Octyl ester, norbornene carboxylic acid 2-ethylhexyl ester, norbornene carboxylic acid myristyl ester, norbornene carboxylic acid palmityl ester, furnace
  • the various norbornene carboxylic acid alkyl ester which has a C1-C20 alkyl group, such as borne
  • the carbon number of the alkyl group is 1 to 20, preferably 1 to 8 carbon atoms
  • the flexibility is more than 20 Although excellent, there is a fear that the heat resistance is lowered.
  • the weight average molecular weight of the cyclic olefin copolymer according to the present invention is 10,000 to 1,000,000, preferably 30,000 to 500,000, more preferably 50,000 to 300,000 may be excellent in heat resistance and moldability.
  • Polyolefin-based rubber or polyolefin-based elastomer in the present invention is to impart gas barrier properties, weather resistance and durability to the composite composition layer, for example, ethylene-propylene rubber, ethylene-butene-1 rubber, ethylene-propylene-diene-based Elastomers, and the like, for example, DuPont's Nodel series (Nordel 2722 EDPM, etc.), Superohm 3728 and the like, but is not limited thereto.
  • the molecular weight of the polyolefin-based rubber or polyolefin-based elastomer is preferably such that the melt viscosity in the molten state during film molding is equal to or less than that of the polypropylene-based resin.
  • the melt index is preferably in the range of 1 to 10 g / 10 min or less at 230 ° C./2.16 kg. If the molecular weight is too large, compatibility with the polypropylene resin deteriorates during film molding, and there is a high possibility that a fatal gel or fish eye phenomenon may occur.
  • the mixing ratio of the polypropylene resin and the polyolefin rubber or the polyolefin elastomer is in the range of 0.5 to 20 parts by weight based on 100 parts by weight of the polypropylene resin, and has excellent gas barrier properties and impact resistance and transparency. Excellent
  • Nano-inorganic particles according to the present invention is not particularly limited as long as it is commonly used in the art and can be used both surface-treated or not.
  • silica, titania, talc, calcium carbonate, clay, or the like may be used as the nano-inorganic particles, and the particle size may be 500 nm, preferably 200 nm, and more preferably 5 to 80 nm. If smaller than the particle size, it is difficult to disperse sufficient heat resistance, and if it exceeds 500 nm, there may be a problem in transparency and water resistance, which is not good.
  • the silane-based compound serves to prevent discoloration of the polyolefin-based polymer in conjunction with the polyolefin-based polymer included in the composite composition layer.
  • the silane compound may be used without any limitation as long as it is commonly used in the art, and preferably any one or two or more selected from primary silane, secondary silane and tertiary silane may be used.
  • Examples of the primary silanes include benzylmethylchlorosilane, n-butylmethylchlorosilane, di-n-butylchlorosilane, ethylmethylchlorosilane, diethylchlorosilane, dimethylchlorosilane, n-octadecylmethylchlorosilane, Phenylmethylchlorosilane, diphenylchlorosilane, cyclohexylmethylchlorosilane, cyclopentylmethylchlorosilane, n-propylmethylchlorosilane, tolylmethylchlorosilane, allylmethylchlorosilane, 5-hexenylmethylchlorosilane, vinylmethylchloro Monohalosilanes selected from the group consisting of silanes; Or t-butylphenylmethoxysilane, dimethylethoxysilane, dimethylmeth
  • Examples of the secondary silane include t-butyldichlorosilane, phenyldichlorosilane, dichlorocyclohexsilane, dichloroethylsilane, dichloromethylsilane, dichlorophenylsilane, dichlorohexylsilane, dichloro (3-phenylpropyl) silane, dichloroiso Dihalosilane selected from the group consisting of propylsilane, dichloro (4-phenylbutyl) silane, n-propyldichlorosilane, dichloroallylsilane, dichlorovinylsilane, trichlorosilane; Or butyldimethoxysilane, dodecyldiethoxysilane, ethyldiethoxysilane, methyldimethoxysilane, methyldiethoxysilane, n-octyldiethoxysilane, oct
  • tertiary silane examples include trialkoxysilanes such as trimethoxysilane, triethoxysilane and tri-n-propoxysilane.
  • the silane-based compound may include 0.1 to 5 parts by weight based on 100 parts by weight of polypropylene resin. When added in less than 0.1 part by weight it may be inferior discoloration effect, when added in excess of 5 parts by weight may bleed out (bleed-out) between the base resin layer and the composite composition layer.
  • the puncture composition according to the present invention may comprise a mixture of the following two elastomers as the main elastomer.
  • Elastomer 1 may be one or two or more polybutadiene or butadiene copolymers.
  • Elastomer 2 may also be one or more cis-1,4-polyisoprene.
  • the elastomer 1 may be mentioned as polybutadiene, having 1,2-units in an amount of between 4% and 80%, or those having a cis-1,4- content of more than 80%.
  • polybutadiene having 1,2-units in an amount of between 4% and 80%, or those having a cis-1,4- content of more than 80%.
  • butadiene copolymers butadiene-styrene copolymers (SBR), butadiene-isoprene copolymers (BIR) or styrene-butadiene-isoprene copolymers (SBIR) may be mentioned.
  • Styrene content is between 5% and 50% by weight, more particularly between 20% and 40% by weight, the content of 1,2-bonds in the butadiene moiety is between 4% and 65% and the content of trans-1,4-bonds
  • An SBR copolymer between 20% and 80%, a BIR copolymer having an isoprene content between 5% and 90% by weight and a Tg between -40 ° C and -80 ° C, between 5% and 50% by weight of styrene, More particularly between 10% and 40% by weight, isoprene content between 15% and 60% by weight, more particularly between 20% and 50% by weight and butadiene content between 5% and 50% by weight, More specifically, between 20% and 40% by weight, the 1,2-unit content of the butadiene portion is between 4% and 85% and the trans-1,4-unit content of the butadiene portion is between 6% and 80%.
  • And SBIR balls having a 1,2-unit + 3,4-unit content of the isoprene portion between 5% and 70% and a trans-1,4-unit content of the isoprene portion between 10% and 50% And copolymers may be mentioned in particular, more generally, it is particularly suitable for any SBIR copolymer having a Tg of between -70 and -20 °C °C.
  • the elastomer 2 preferably has a content (mole%) of cis-1,4-polyisoprene, preferably cis-1,4-bond, still more preferably more than 95%, in particular more than 98%. Can be used.
  • the puncture-resistant composition is preferably made of the elastomer 1 and the elastomer 2 comprises 20 to 80: 80 to 20% by weight. In the above range, the sealing property and the puncture resistance may be improved.
  • the elastomers 1 and 2 preferably have a weight average molecular weight of 10,000 to 80,000, respectively. If the weight average molecular weight is less than 10,000, stability at high temperatures may be lowered. If the weight average molecular weight is greater than 80,000, fluidity may be degraded, thereby causing a risk of excessive creep.
  • the kneading of the composition is not particularly limited, but may be pelletized by, for example, a Benbury mixer, calender roll, single screw or twin screw extruder, and separated from the polypropylene resin pellet which is the material of the base layer.
  • Each of the two extruders may be melt kneaded, then co-extruded and blow molded to prepare a laminated film.
  • the polypropylene resin which is the material of the base layer, may be a resin commonly used in the art within the scope of not impairing the object of the present invention, and may be the same resin as the polypropylene mixed with the cyclic olefin. It's okay.
  • the composite composition may further include 0.01 to 2 parts by weight of ionomer based on 100 parts by weight of the polypropylene resin to further improve hot sealing, low temperature sealing and oil resistance of the film to be produced.
  • the ionomer may generally be composed of repeating units having no ionicity and repeating units containing a small amount of ions, wherein the repeating units containing ions may account for 1 to 15% by weight of the entire polymer.
  • perfluorocarbon sulfonic acid resins for example, perfluorocarbon sulfonic acid resins; aromatic polyether sulfonic acid resins, aromatic polyimide sulfonic acid resins, and hydrocarbon-based sulfonic acid resins such as polybenz sulfonic acid resins may be used. Only one of these ionomers may be used, or two or more thereof may be used in combination. Of these ionomers, perfluorocarbon sulfonic acid resins such as Nafion (trade name) may be used.
  • the ionomer may be included in an amount of 0.01 to 2 parts by weight based on 100 parts by weight of the polypropylene resin. When included less than 0.01 parts by weight, the improvement effect such as hot sealing, low temperature sealing and oil resistance is insignificant, and when added in excess of 2 parts by weight may lower the curing rate of the film.
  • additives such as a heat stabilizer, an ultraviolet absorber, a slip agent, an antiblocking agent, and the like may be added to the food packaging film composition as necessary without departing from the object of the present invention.
  • the thickness of the laminated film for retort food packaging according to the present invention is appropriately determined by the type and packing amount of the food to be packaged, the thickness is preferably about 10 to 200 ⁇ m. It can have sufficient heat resistance and transparency without the intensity
  • molding method of the laminated film for retort food packaging which concerns on this invention is not specifically limited, For example, it can manufacture by T-die extrusion molding method and inflation extrusion molding method.
  • the retort food packaging laminated film according to the present invention exhibits very excellent properties in puncture resistance, heat resistance, transparency, discoloration resistance, and moisture barrier property, thereby providing an excellent retort pouch film that satisfies recently severed retort treatment conditions. .
  • An adhesive sheet coated with an adhesive by an applicator was manufactured in a 5 ⁇ 10 cm standard, and left at 40 ° C. for 12 hours at a distance of 25.4 cm (10 inch) using a 300 W lamp. The chromaticity difference of the part was discriminated. Discoloration determination criteria were based on the following gray scale discoloration determination method established by the American Fiber Chemical Society.
  • the energy (J) at the time of fracture of the sample film was measured using a puncture resistance measuring instrument (Ubique, model UPR-digital), and the puncture resistance characteristics were evaluated in the following four grades.
  • ⁇ 15 or more, less than 20
  • the masterbatch was prepared by adding ionomer and calcium carbonate to the polypropylene in the amounts shown in Table 1, followed by stirring and extruding into pellets.
  • the cyclic olefin, polyolefin rubber and amine compound shown in Table 1 were put into a hopper, and the thickness of the polypropylene base layer was 100 ⁇ m in the polypropylene base layer at a cylinder temperature of 120/130/140 ° C. and a die temperature of 140 ° C.
  • the specimen was prepared by melt casting. The thermal shrinkage, light transmittance, moisture permeability, photochromic property, and shrinkage rate of the prepared specimens were observed, and the appearances thereof were shown in Table 2 below.
  • the thermal shrinkage of the film was 2.5% or less at 121 ° C / 30 minutes, 3.5% or less at 135 ° C / 8 minutes, and 150 ° C / 2 minutes.
  • it can be seen that it has very excellent heat resistance of 5.0% or less, and also shows excellent characteristics of maintaining transparency properties of polypropylene itself as light transmittances of all are 85% or more in transparency.
  • the present invention and other compositions show significant thirty characteristics.
  • Perforated composition 50% by weight of polybutadiene (cis-1,4- content 80%, weight average molecular weight 50,000) and cis-1,4-polyisoprene (cis-1,4- content 98%, weight average molecular weight 40,000 A) 50% by weight mixing
  • the film sample prepared through the above example was cut, left to stand for the temperature and time defined above, and then the numerical values in the longitudinal direction (MD) and the width direction (TD) of the film were measured to obtain thermal shrinkage as an average value.
  • the light transmittance was measured using a Nippon Denshoku NDH2000 Haze meter, and the water vapor transmission rate was measured by Model WVTR-7002 of Ultratec Korea.
  • the thermal shrinkage of the film was 2.5% or less at 121 ° C / 30 minutes, 3.5% or less at 135 ° C / 8 minutes, and 150 ° C / 2 minutes.
  • it can be seen that it has very excellent heat resistance of 5.0% or less, and also shows excellent characteristics of maintaining transparency properties of polypropylene itself as light transmittances of all are 85% or more in transparency.
  • the present invention and other compositions show significant thirty characteristics.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un film stratifié destiné à emballer un aliment stérilisé en autoclave, présentant une résistance à la perforation et à la décoloration améliorée, le film stratifié comprenant : une couche de résine de base de polypropylène ; et une couche de composition composite formée sur une surface de la couche de résine de base, la couche de composition composite contenant, sur la base de 100 parties en poids d'une résine de polypropylène, de 5 à 40 parties en poids d'une polyoléfine cyclique à base de norbornène, de 0,5 à 20 parties en poids d'un caoutchouc à base de polyoléfine ou d'un élastomère à base de polyoléfine, de 0,1 à 5 parties en poids d'une composition résistant à la perforation, de 1 à 20 parties en poids de nanoparticules inorganiques, et de 0,1 à 5 parties en poids d'un composé à base de silane.
PCT/KR2015/005418 2014-05-30 2015-05-29 Film stratifié pour emballage d'aliment stérilisé en autoclave à résistance à la perforation et à la décoloration améliorée Ceased WO2015183036A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2014-0066060 2014-05-30
KR1020140066098A KR101568009B1 (ko) 2014-05-30 2014-05-30 내천공성이 개선된 레토르트 식품 포장용 적층 필름
KR10-2014-0066098 2014-05-30
KR1020140066060A KR101568006B1 (ko) 2014-05-30 2014-05-30 내변색성이 개선된 레토르트 식품 포장용 적층 필름

Publications (1)

Publication Number Publication Date
WO2015183036A1 true WO2015183036A1 (fr) 2015-12-03

Family

ID=54699295

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2015/005418 Ceased WO2015183036A1 (fr) 2014-05-30 2015-05-29 Film stratifié pour emballage d'aliment stérilisé en autoclave à résistance à la perforation et à la décoloration améliorée

Country Status (1)

Country Link
WO (1) WO2015183036A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05271497A (ja) * 1992-03-30 1993-10-19 Kuraray Co Ltd 組成物、多層構造体および包装体
JPH11193358A (ja) * 1997-10-17 1999-07-21 Mizusawa Ind Chem Ltd 耐変色性に優れた無機抗菌剤及びその製造方法
JP2000254996A (ja) * 1999-03-04 2000-09-19 Sumitomo Chem Co Ltd 積層体
KR100399424B1 (ko) * 1997-01-30 2004-03-24 미쓰이 가가쿠 가부시키가이샤 포장용다층필름
JP2014012699A (ja) * 2010-03-11 2014-01-23 Kuraray Co Ltd 架橋剤、架橋性組成物、架橋物、化合物及びその製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05271497A (ja) * 1992-03-30 1993-10-19 Kuraray Co Ltd 組成物、多層構造体および包装体
KR100399424B1 (ko) * 1997-01-30 2004-03-24 미쓰이 가가쿠 가부시키가이샤 포장용다층필름
JPH11193358A (ja) * 1997-10-17 1999-07-21 Mizusawa Ind Chem Ltd 耐変色性に優れた無機抗菌剤及びその製造方法
JP2000254996A (ja) * 1999-03-04 2000-09-19 Sumitomo Chem Co Ltd 積層体
JP2014012699A (ja) * 2010-03-11 2014-01-23 Kuraray Co Ltd 架橋剤、架橋性組成物、架橋物、化合物及びその製造方法

Similar Documents

Publication Publication Date Title
JP5281584B2 (ja) プロピレン系重合体組成物
TW564254B (en) Polypropylene film, multilayered polypropylene film and application thereof
EP2554590B1 (fr) Composition de résine et structure multicouche l'utilisant
KR20010029790A (ko) 다층 구조체
EP0508415B1 (fr) Film mat et son procédé de préparation
WO2012144838A2 (fr) Composition de résine ionomère à base d'oléfine
US20230197871A1 (en) Layer element suitable as integrated backsheet for a bifacial photovoltaic module
WO2018182200A1 (fr) Composition de caoutchouc pour semelle de chaussure et moulage la comprenant
CN112778617A (zh) 一种热塑性低烟无卤聚烯烃电缆料及其制备方法和应用
WO2015023053A1 (fr) Composition de résine de polypropylène ayant d'excellentes résistance à l'opalescence et résistance au choc
WO2015183039A1 (fr) Film stratifié destiné à l'emballage d'aliments stérilisables, présentant une propriété de barrière aux gaz
KR101487878B1 (ko) 신규 레토르트 식품 포장용 나노처리 내열성 폴리올레핀 조성물 및 이로부터 제조되는 식품포장용 필름
KR101838836B1 (ko) 수지 조성물 및 그의 시트상 성형체
EP3589681B1 (fr) Agent ignifuge, câble durcissable par l'humidité et constructions de câble présentant une performance d'impact tangentiel améliorée
JP4232561B2 (ja) 農業用ポリオレフィン系多層フィルム
WO2018180427A1 (fr) Composition de résine, et corps moulé ainsi que procédé de fabrication de celui-ci
WO2021080215A1 (fr) Composition de résine thermoplastique
KR101568006B1 (ko) 내변색성이 개선된 레토르트 식품 포장용 적층 필름
KR101459677B1 (ko) 레토르트 식품 포장용 적층 필름
KR100290080B1 (ko) 열봉합성 및 가공성이 우수한 압출 라미네이션용 수지 조성물
KR101488154B1 (ko) 신규 레토르트 식품 포장용 고투명 내열성 폴리올레핀 조성물 및 이로부터 제조되는 식품포장용 필름
EP1672022A1 (fr) Films elastomeres et leur procede de production
KR101488161B1 (ko) 신규 레토르트 식품 포장용 내열성 폴리올레핀 조성물 및 이로부터 제조되는 식품포장용 필름
JP2022127710A (ja) 積層体、その製造方法およびクロロスルホン化ポリオレフィン接合用接着剤
KR100418603B1 (ko) 폴리프로필렌 수지 조성물 및 이를 사용하여 성형한포장용 필름

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15799023

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15799023

Country of ref document: EP

Kind code of ref document: A1