WO2014010626A1 - 農業用多層フィルム - Google Patents
農業用多層フィルム Download PDFInfo
- Publication number
- WO2014010626A1 WO2014010626A1 PCT/JP2013/068860 JP2013068860W WO2014010626A1 WO 2014010626 A1 WO2014010626 A1 WO 2014010626A1 JP 2013068860 W JP2013068860 W JP 2013068860W WO 2014010626 A1 WO2014010626 A1 WO 2014010626A1
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- WO
- WIPO (PCT)
- Prior art keywords
- film
- sorbitan
- polyolefin
- agricultural
- antifogging
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
- A01G9/1438—Covering materials therefor; Materials for protective coverings used for soil and plants, e.g. films, canopies, tunnels or cloches
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
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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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
- B32B2410/00—Agriculture-related articles
Definitions
- the present invention relates to an agricultural polyolefin-based multilayer film which is excellent in initial antifogging property immediately after the film is spread in a house and excellent in antifogging durability.
- agricultural vinyl chloride films (hereinafter referred to as agricultural bi), polyethylene, ethylene-vinyl acetate copolymers, and polyolefins have been used in order to enhance agricultural marketability and productivity by semi-forcing or suppressing cultivation of agricultural crops.
- So-called house cultivation and tunnel cultivation are actively carried out to grow useful plants under the covering with agricultural covering materials such as agricultural polyolefin-based resin films (hereinafter referred to as agricultural poly and agricultural vinegar) mainly composed of resin.
- agricultural polyolefin-based resin film mainly composed of polyolefin-based resin is light because its density is smaller than that of vinyl chloride resin, and generates little toxic gas even when incinerated.
- Wide-width films that do not require adhesive processing have been actively used because they can be provided at low cost, and have come to be used in a form that replaces traditionally used agricultural bean.
- the type in which the film surface on the inside of the house is coated with an antifogging agent can provide antifogging properties for a long period of time, and research is being actively conducted.
- an antifogging agent coat type is excellent in antifogging durability, it takes time to develop the antifogging property and there is a problem that the initial antifogging property immediately after the film is spread in a house is inferior. .
- the antifogging agent used in such an antifogging agent kneading type to the polyolefin base film of the antifogging agent coating type
- the layer to be added is an optimized formulation, so it cannot simply be diverted to the anti-fogging agent coating type, and the initial anti-fogging property and anti-fogging durability are compatible at a high level.
- a fogging agent coat type polyolefin agricultural film could not be obtained.
- the present inventor has included a sorbitan antifogging agent in at least the intermediate layer of the base film, and the synthetic resin binder and the inorganic colloid sol or the inorganic colloid sol are mainly formed on the inner layer side surface of the base film.
- the present invention has been completed by finding that the above-mentioned problems can be solved in a polyolefin-based multilayer agricultural film characterized by providing an antifogging coating layer as a component.
- the sorbitan anti-fogging agent has the property of suppressing blowing of the anti-fogging agent in the conventional anti-fogging agent kneading type, and has developed anti-fogging properties when used in combination with other anti-fogging agents. Surprisingly, by combining the sorbitan antifogging agent and the antifogging coating layer, it has become possible to achieve both the initial antifogging property and the durability of the antifogging property.
- the present invention (1) Antifogging coating mainly comprising a synthetic resin binder and an inorganic colloid sol or an inorganic colloid sol on the inner layer side surface of a base film having at least an outer layer, an intermediate layer and an inner layer and containing a polyolefin resin.
- a polyolefin-based multilayer film for agriculture which is provided with a film layer and contains a sorbitan antifogging agent in at least an intermediate layer of the base film.
- the polyolefin multilayer film for agriculture according to (1) which contains a fluorosurfactant component in the outer layer or the outer layer and the inner layer of the base film.
- the sorbitan antifogging agent is sorbitan palmitic acid ester, alkylene oxide adduct of sorbitan palmitic acid ester, sorbitan stearic acid ester, alkylene oxide adduct of sorbitan stearic acid ester, polyoxyalkylene sorbitan fatty acid ester, sorbitan alkylene
- the polyolefin-based multilayer film for agricultural use according to any one of (1) to (5), which is at least one selected from the group consisting of an oxide adduct and sorbitan monopalmitate.
- the copolymer of ethylene (A) and a cyclic aminovinyl compound (B) represented by the following formula (1) is contained in any one or more layers of the base film, (1) to (9)
- R 1 and R 2 each independently represent a hydrogen atom or a methyl group
- R 3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
- an agricultural film of the present invention may be transparent, satin or semi-pear, and is preferably used for agricultural film (so-called agricultural PO) for house, tunnel, mulching, bag hanging, etc. Can do.
- the agricultural polyolefin-based multilayer film in the present invention includes a sorbitan antifogging agent in at least an intermediate layer of a base film made of a polyolefin resin having at least an outer layer, an intermediate layer, and an inner layer, and is provided on the inner layer side surface of the base film. Further, the present invention is characterized in that a synthetic resin binder and an inorganic colloid sol, or an antifogging coating film layer mainly composed of an inorganic colloid sol is provided.
- the base film refers to a polyolefin-based multilayer film before an antifogging coating film or the like is formed, and is composed of at least three layers of an outer layer, an intermediate layer, and an inner layer, but includes more layers. But you can.
- the layer facing the outside of the house is called an outer layer
- the layer facing the inside of the house is called an inner layer.
- the sorbitan antifogging agent that can be used in the present invention, sorbitan fatty acid esters and alkylene oxide adducts thereof can be used.
- the sorbitan antifogging agent is preferably sorbitan palmitic acid ester, alkylene oxide adduct of sorbitan palmitic acid ester, sorbitan stearic acid ester, alkylene oxide adduct of sorbitan stearic acid ester, polyoxyalkylene sorbitan fatty acid ester And at least one selected from the group consisting of sorbitan alkylene oxide adducts and sorbitan monopalmitate.
- the sorbitan stearate ester and sorbitan palmitate ester include monoesters, diesters, triesters, and mixtures thereof.
- the alkylene oxide added to sorbitan stearic acid ester and sorbitan palmitic acid ester ethylene oxide and propylene oxide are preferable.
- the number of moles to which the alkylene oxide is added if the number of moles is large, the initial wetting and the low temperature drip resistance are effective, but the sustainability tends to be low.
- the sorbitan anti-fogging agent comprises sorbitan palmitate 0.5 mol propylene oxide adduct, polyoxypropylene sorbitan fatty acid ester, sorbitan monostearate 0.5 mol propylene oxide adduct and sorbitan monopalmitin.
- Particularly preferred is at least one selected from the group consisting of acid esters.
- a sorbitan antifogging agent is contained in at least the intermediate layer of the base film.
- the content of the sorbitan antifogging agent is preferably 0.1 to 3.0% by weight, more preferably 0.5 to 2.0% by weight with respect to 100% by weight of the polyolefin resin in the intermediate layer of the base film. %. If the content of the sorbitan antifogging agent is less than 0.1% by weight, the effect of improving the initial antifogging property is hardly exhibited, and if it exceeds 3.0% by weight, the effect is saturated, which is not preferable.
- a sorbitan antifogging agent in addition to the intermediate layer of the base film, can be contained in the inner layer and the outer layer.
- the base film when the base film is manufactured, it is added to the outer layer, and then bleeded out (transferred and precipitated), so that the same effect can be obtained even if it is contained in the intermediate layer of the base film.
- the above-mentioned surfactant may be contained in the intermediate layer of the film as a result.
- an antifogging agent other than the sorbitan antifogging agent may be contained in the base film within a range not impairing the effects of the present invention.
- Other antifogging agents that can be used in the present invention include glycerin monopalmitate, glycerin monostearate, glycerin monolaurate, diglycerin monopalmitate, glycerin dipalmitate, glycerin distearate, diglycerin mono Glycerin surfactants such as palmitate monostearate, triglycerin monostearate, triglycerin distearate or their adducts with alkylene oxide, polyethylene glycol monostearate, polyethylene glycol monopalmitate, polyethylene glycol alkylphenyl Polyethylene glycol surfactants such as ether, and other trimethylolpropane surfactants such as trimethylolpropane monostearate and pentaerythritol.
- Pentaerythritol surfactants such as allyl monopalmitate and pentaerythritol monostearate, alkylene oxide adducts of alkylphenols; esters of sorbitan / glycerin condensate and fatty acid, sorbitan / alkylene glycol condensate and fatty acid ester Diglycerin diolate sodium lauryl sulfate, sodium dodecylbenzenesulfonate, cetyltrimethylammonium chloride, dodecylamine hydrochloride, lauric acid laurylamide ethyl phosphate, triethylcetylammonium iodide, oleylaminodiethylamine hydrochloride, dodecylpyridinium salt, etc. And those containing isomers thereof.
- a fluorosurfactant in the outer layer of the base film, or in the outer layer and the inner layer, a decrease in translucency caused by condensation on the film surface outside the house is suppressed immediately after spreading.
- the fluorosurfactant include surfactants in which a part or all of them are substituted with F instead of H bonded to C of the hydrophobic group of a normal surfactant.
- a surfactant containing a fluoroalkenyl group Such a fluorine-type surfactant can be used individually or in combination of 2 or more types.
- fluorine-containing compound having a perfluoroalkyl group examples include an anionic fluorine-containing surfactant, a cationic fluorine-containing surfactant, an amphoteric fluorine-containing surfactant, a nonionic fluorine-containing surfactant, and a fluorine-containing oligomer.
- an anionic fluorine-containing surfactant a cationic fluorine-containing surfactant
- an amphoteric fluorine-containing surfactant a nonionic fluorine-containing surfactant
- a fluorine-containing oligomer examples include an anionic fluorine-containing surfactant, a cationic fluorine-containing surfactant, an amphoteric fluorine-containing surfactant, a nonionic fluorine-containing surfactant, and a fluorine-containing oligomer.
- a fluorosurfactant which is a perfluoroalkylethylene oxide adduct or a perflu
- the perfluoroalkylethylene oxide adduct or perfluoroalkylpropylene oxide adduct has a perfluoroalkyl group having preferably 5 to 10 carbon atoms, more preferably 5 to 8 carbon atoms.
- the adduct has a low environmental survivability and therefore remains in the soil. This is particularly preferable because it is environmentally friendly and has a high water repellency suppressing effect immediately after spreading.
- the content of the surfactant component is preferably 0.001 to 5.0% by weight, more preferably 0.01 to 3.0% by weight, based on 100% by weight of the polyolefin resin in the outer layer of the base film. It is. If the content of the fluorine-containing surfactant component is less than 0.001% by weight, the effect of suppressing water repellency is hardly exhibited, and if the content exceeds 5% by weight, the effect is saturated, which is not preferable.
- the above surfactant component is effective when contained in the outer layer of the base film. For example, even if the material added to the intermediate layer is bleed out (transferred and precipitated) and contained substantially in the outer layer of the base film, the same effect will be exhibited, so regardless of which layer was added at the time of manufacture. As a result, it is sufficient that the surfactant is contained in the above amount in the outer layer of the film.
- the polyolefin agricultural film of the present invention is characterized in that a synthetic resin binder and an inorganic colloid sol, or an antifogging coating layer mainly composed of an inorganic colloid sol is formed in contact with the innermost layer of the polyolefin base film. Yes. At this time, when a large amount of an antifogging agent is contained in the film in contact with the antifogging coating film, it is difficult to form the antifogging coating film due to the spraying of the antifogging agent onto the non-uniform film surface. There is.
- the agricultural film of the present invention can form an antifogging coating film and other coating films.
- the antifogging coating film may be formed on the inner layer side surface and the dustproof coating film may be formed on the outer layer side surface.
- the effect of improving the adhesion of the coating film which is the effect of the present invention, may be obtained for the dust-proof coating film.
- the antifogging coating film in the present invention examples include a composition mainly composed of a binder resin such as an inorganic colloidal sol and / or a thermoplastic resin.
- a binder resin such as an inorganic colloidal sol and / or a thermoplastic resin.
- an antifogging coating film mainly comprising an inorganic colloid substance and a hydrophilic organic compound or an antifogging coating film comprising an inorganic colloid substance and an acrylic resin as main components can be used.
- the binder resin may not be added, and an inorganic material such as colloidal silica or colloidal alumina may be laminated.
- the inorganic colloid sol used in the present invention has a function of imparting hydrophilicity to the surface of the film by applying it to the surface of the hydrophobic polyolefin resin film.
- inorganic colloidal sol inorganic aqueous colloidal particles such as silica, alumina, water-insoluble lithium silicate, iron hydroxide, tin hydroxide, titanium oxide, barium sulfate were dispersed in water or a hydrophilic medium by various methods.
- aqueous sols Among these, silica sol and alumina sol are preferably used, and these may be used alone or in combination.
- the inorganic colloidal sol it is preferable to select an average particle size in the range of 5 to 100 nm. Within this range, two or more colloidal sols having different average particle sizes may be used in combination. If the average particle size is too large, the coating may be devitrified in white, and if the average particle size is too small, the stability of the inorganic colloidal sol may be unfavorable.
- the inorganic colloidal sol is blended in an amount of 0.2 to 5 and preferably 0.5 to 4 in terms of a solid weight ratio with respect to the total solid weight of the binder resin composition. That is, when the blending amount is too small, a sufficient antifogging effect may not be exhibited. On the other hand, when the blending amount is too large, the antifogging effect is not easily improved in proportion to the blending amount.
- the film formed later becomes cloudy and causes a phenomenon that the light transmittance of the film is lowered, and the film may be coarse and brittle, which is not preferable.
- binder resin examples include acrylic resins, epoxy resins, urethane resins, polyester resins, and the like, in particular, acrylic resins and / or urethane resins, from the compatibility with the polyolefin base film of the present invention. It is preferable to use a resin, more preferably from (a) a hydrophilic acrylic polymer, (c) a hydrophobic acrylic resin, (e) a hydrophobic acrylic resin, and a polyurethane emulsion. Each has its own attributes and is preferred.
- acrylic resin examples include (a) one made of a hydrophilic acrylic polymer, (b) one made of a block copolymer containing a hydrophobic molecular chain block and a hydrophilic molecular chain block in one molecule, (c ) Among those composed of a hydrophobic acrylic resin, (a) is particularly preferable because it is excellent in compatibility with the base film of the present invention in terms of early antifogging wetness, while (c) is preferred. It is excellent in compatibility with the substrate film of the present invention and is preferable.
- a hydroxyl group-containing vinyl monomer component is a main component (preferably 60 wt% to 99.9 wt%, more preferably 65 wt% to 95 wt%), acid Examples thereof include a copolymer containing 0.1 to 30% by weight of a group-containing vinyl monomer component, a partially neutralized product or a completely neutralized product thereof.
- the hydroxyl group-containing vinyl monomer component include hydroxyalkyl (meth) acrylates such as hydroxymethyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, and 2-hydroxypropyl (meth) acrylate. However, it is not limited to these. These may be homopolymers, or may be copolymers of these hydroxyalkyl (meth) acrylates as main components and other monomers that can be copolymerized therewith.
- Examples of the acid group-containing monomer copolymerizable with these hydroxyalkyl (meth) acrylates include carboxylic acids, sulfonic acids, and phosphonic acids, and (meth) acrylic acid belonging to carboxylic acids is particularly preferable.
- copolymer components examples include styrene, vinyl toluene, vinyl chloride, vinylidene chloride, vinyl oxide, (meth) acrylic acid esters, N, N-dimethylaminoethyl (meth) acrylamide, vinyl pyridine and the like. .
- hydrophobic acrylic resin (c) at least a total of 60% by weight of a monomer comprising an alkyl ester of acrylic acid or methacrylic acid, or a single unit of an alkyl ester of acrylic acid or methacrylic acid and an alkenylbenzene.
- a monomer mixture and 0 to 40% by weight of a copolymerizable ⁇ , ⁇ -ethylenically unsaturated monomer are obtained by emulsion polymerization in an aqueous medium in the presence of an emulsifier, for example, according to ordinary polymerization conditions. And water dispersible polymers or copolymers.
- alkyl esters of acrylic acid or methacrylic acid used for the production of hydrophobic acrylic resins include acrylic acid methyl ester, acrylic acid ethyl ester, acrylic acid-n-propyl ester, acrylic acid isopropyl ester, acrylic acid-n- Examples thereof include butyl esters.
- alkyl acrylates having 1 to 20 carbon atoms and / or methacrylic acid alkyl esters having 1 to 20 carbon atoms are used.
- alkenylbenzenes include styrene, ⁇ -methylstyrene, vinyltoluene and the like.
- Examples of ⁇ , ⁇ -ethylenically unsaturated monomers used for obtaining hydrophobic acrylic resins include ⁇ , ⁇ such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, crotonic acid, and itaconic acid.
- -Ethylenically unsaturated carboxylic acids ⁇ , ⁇ -ethylenically unsaturated sulfonic acids such as ethylene sulfonic acid; 2-acrylamido-2-methylpropanoic acid; ⁇ , ⁇ -ethylenically unsaturated phosphonic acids; acrylic acid or methacrylic acid Hydroxyl group-containing vinyl monomers such as hydroxyethyl; acrylonitriles; acrylic amides; glycidyl esters of acrylic acid or methacrylic acid, and the like.
- These monomers may be used alone or in combination of two or more, and are preferably used in the range of 0 to 40% by weight. If the amount used is too large, the antifogging performance may be lowered, which is not preferable.
- the acrylic resin is a known emulsifier, for example, an anionic surfactant, a cationic surfactant, or a nonionic surfactant, in the presence of one or more kinds in an aqueous medium. It can be obtained by a method of emulsion polymerization, a method of polymerization using a reactive emulsifier, a method of polymerizing based on an oligo soap theory without containing an emulsifier.
- Examples of the polymerization initiator preferably used for the production of the acrylic resin include persulfates such as ammonium persulfate and potassium persulfate. These can be used in the range of 0.1 to 10% by weight based on the total amount of monomers charged.
- a hydrophobic acrylic resin having a glass transition temperature of 35 to 80 ° C. If the glass transition temperature is too low, the inorganic colloidal particles are agglomerated several times and tend to be in a non-uniform dispersion state. If it is too high, it is difficult to obtain a transparent uniform coating.
- the hydrophobic acrylic resin used in the present invention is preferably used as an aqueous emulsion.
- An aqueous emulsion obtained by polymerization of each monomer in an aqueous medium may be used as it is, or may be diluted by adding a liquid dispersion medium to this, and also produced by the above polymerization.
- a polymer may be collected separately and re-dispersed in a liquid dispersion medium to form an aqueous emulsion.
- examples of (d) urethane-based resins include polyether-based, polyester-based, and polycarbonate-based anionic polyurethane aqueous compositions and emulsions.
- Polycarbonate anionic polyurethane emulsion is preferred in terms of water resistance, water resistance and scratch resistance, and further increases the water resistance and scratch resistance of anti-fogging coating film, as well as the time until the antifogging property is developed and the antifogging duration.
- a polycarbonate-based anionic polyurethane emulsion containing a silanol group is more preferable. These may be used alone or in combination of two or more.
- a polycarbonate-based anionic polyurethane emulsion containing a silanol group comprises a polyurethane resin containing at least one silanol group in the molecule and a strongly basic tertiary amine as a curing catalyst.
- a colloidal dispersion system emulsion in which the silanol group-containing polyurethane resin and the strongly basic tertiary amine are dissolved in the aqueous phase, or a colloidal dispersion system in which fine particles are dispersed.
- the aqueous polyurethane composition is preferably 0.01 or more and 2 or less, more preferably 0.01 or more and 1 or less, based on the hydrophobic acrylic resin in terms of solid content by weight.
- it is less than 0.01, it is difficult to improve the scratch resistance, and it takes a long time until the antifogging property is exhibited, and it is difficult to exhibit a sufficient antifogging effect.
- it is too much, not only the scratch resistance is difficult to improve in proportion to the blending amount, but the coating film formed after coating tends to become cloudy and lower the light transmittance, which is also disadvantageous in terms of cost. It is not preferable.
- an anionic surfactant such as can be added.
- a cationic surfactant such as can be added.
- a nonionic surfactant such as can be added.
- a surfactant such as can be added. The following can be used as such a surfactant.
- Anionic surfactants include fatty acid salts such as sodium oleate and potassium oleate; higher alcohol sulfates such as sodium lauryl sulfate and ammonium lauryl sulfate; alkylbenzene sulfones such as sodium dodecylbenzenesulfonate and sodium alkylnaphthalenesulfonate Acid salt and alkyl naphthalene sulfonate salt; naphthalene sulfonic acid formalin condensate; dialkyl sulfosuccinate salt; dialkyl phosphate salt; polyoxyethylene sulfate salt such as sodium polyoxyethylene alkyl ether sulfate, sodium polyoxyethylene alkyl phenyl ether sulfate, etc. Can be mentioned.
- Cationic surfactants include: ethanolamines; laurylamine acetate, triethanolamine monostearate formate; amine salts such as stearamide ethyl diethylamine acetate; lauryltrimethylammonium chloride, stearyltrimethylammonium chloride, dilauryldimethyl And quaternary ammonium salts such as ammonium chloride, distearyldimethylammonium chloride, lauryldimethylbenzylammonium chloride, and the like.
- Nonionic surfactants include polyoxyethylene higher alcohol ethers such as polyoxyethylene lauryl alcohol, polyoxyethylene lauryl ether and polyoxyethylene oleyl ether; polyoxyethylene such as polyoxyethylene octylphenol and polyoxyethylene nonylphenol.
- Alkylaryl ethers such as polyethylene glycol monostearate; polypropylene glycol ethylene oxide adducts; sorbitan fatty acid esters such as sorbitan monostearate, sorbitan monopalmitate, sorbitan monobenzoate; diglycerin monopalmi Diglycerol fatty acid esters such as tate and diglycerol monostearate; glycerol monostearate Glycerin fatty acid esters such as pentaerythritol monostearate; pentaerythritol fatty acid esters such as dipentaerythritol monopalmitate; dipentaerythritol fatty acid esters such as dipentaerythritol monopalmitate; sorbitan monopalmitate half adipate Sorbitan such as half glutamic acid ester and diglycerin fatty acid / dibasic acid esters; or condensates thereof with
- polymer surfactant examples include polyacrylate, polymethacrylate, and cellulose ethers.
- the addition of the surfactant can easily and quickly disperse the binder resin and the inorganic colloid sol, and when used in combination with the inorganic colloid sol, imparts hydrophilicity to the surface of the hydrophobic polyolefin resin film. Fulfills the function.
- the addition amount of the surfactant is preferably selected in the range of 0.1 to 50 parts by weight with respect to 100 parts by weight of the solid content of the resin. If the amount of the surfactant added is too small, it takes time to sufficiently disperse the resin and the inorganic colloid sol, and the antifogging effect in combination with the inorganic colloid sol cannot be sufficiently exhibited. If the amount added is too large, the transparency of the coating will decrease due to the bleed-out phenomenon on the coating surface formed after coating, and if it is noticeable, it may cause deterioration of the blocking resistance of the coating or decrease the water resistance of the coating. .
- a cross-linking agent can be added when preparing the anti-fogging agent composition for forming the anti-fogging coating film of the present invention.
- a crosslinking agent has an effect which bridge
- the crosslinking agent include phenol resins, amino resins, amine compounds, aziridine compounds, azo compounds, isocyanate compounds, epoxy compounds, silane compounds, etc., but particularly amine compounds and aziridine compounds. Epoxy compounds can be preferably used.
- a liquid dispersion medium can be blended as necessary.
- a liquid dispersion medium includes a hydrophilic or water-miscible solvent containing water, water; monohydric alcohols such as methyl alcohol, ethyl alcohol, and isopropyl alcohol; polyhydric alcohols such as ethylene glycol, diethylene glycol, and glycerin. Examples: cyclic alcohols such as benzyl alcohol; cellosolve acetates; ketones and the like.
- These liquid dispersion media may be used alone or in combination.
- the antifogging agent composition prepared in the present invention is further mixed with conventional additives such as an antifoaming agent, a plasticizer, a film forming aid, a thickener, a pigment, and a pigment dispersant.
- conventional additives such as an antifoaming agent, a plasticizer, a film forming aid, a thickener, a pigment, and a pigment dispersant.
- a binder component other than the acrylic resin for example, a polyether-based, polycarbonate-based, or polyester-based water-dispersible urethane resin may be mixed.
- a solution or a dispersion of an antifogging composition is applied to a doctor blade coating method, a roll coating method, a dip coating method, a spray coating method, or a rod coating method, respectively.
- a known coating method such as a bar coating method, a knife coating method, or a brush coating method may be employed and dried after coating.
- the drying method after coating may be either natural drying or forced drying. When the forced drying method is employed, it is usually 50 to 250 ° C., preferably 70 to 200 ° C. Good.
- an appropriate method such as a hot air drying method, an infrared drying method, a far infrared drying method, and an ultraviolet curing method may be employed, and it is advantageous to adopt the hot air drying method in consideration of the drying speed and stability. is there.
- the thickness of the coating film formed on the inner layer side surface of the film may be selected with 1/10 or less of the base film as a guide, but is not necessarily limited to this range. If the thickness of the coating film is larger than 1/10 of the base film, there is a difference in flexibility between the base film and the coating film, so that a phenomenon such as peeling of the coating film from the base film is likely to occur. Moreover, the phenomenon that a crack occurs in the coating film to reduce the strength of the base film occurs, which is not preferable.
- the base film may be subjected to a surface treatment.
- the treatment method applied to the surface of the laminated film of the present invention include corona discharge treatment, sputter etching treatment, sodium treatment, and sandblast treatment.
- corona discharge treatment method discharge is performed between a needle-like or knife-edge electrode and a counter electrode, and a sample is placed between the electrodes, and the film surface contains oxygen such as aldehyde, acid, alcohol peroxide, ketone, ether, etc. This is a process for generating a functional group.
- sputter etching process a sample is placed between electrodes that are performing low-pressure glow discharge, and a large number of fine protrusions are formed on the film by the impact of positive ions generated by the glow discharge.
- fine sand is sprayed on the film surface to form a large number of fine irregularities on the surface.
- corona discharge treatment is preferable from the viewpoints of adhesion to the coating layer, workability, safety, cost, and the like.
- polyolefin resin used in the present invention examples include ⁇ -olefin homopolymers, copolymers with different monomers mainly composed of ⁇ -olefins, ⁇ -olefins and conjugated dienes or non-conjugated dienes, etc. And polyunsaturated compounds, copolymers with acrylic acid, methacrylic acid, vinyl acetate, etc., such as high density, low density or linear low density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene- Examples include butene copolymer, ethylene-4-methyl-1-pentene copolymer, ethylene-vinyl acetate copolymer, and ethylene-acrylic acid copolymer.
- low density polyethylene having a density of 0.910 to 0.935, ethylene- ⁇ -olefin copolymer, and ethylene-vinyl acetate copolymer having a vinyl acetate content of 30% by weight or less are transparent and weather resistant. It is preferable as an agricultural film from the viewpoint of properties and price.
- an ethylene- ⁇ -olefin copolymer resin obtained by copolymerization with a metallocene catalyst can be used as at least one component of the polyolefin resin.
- metallocene polyethylene This is usually referred to as metallocene polyethylene, and is a copolymer of ethylene and an ⁇ -olefin such as butene-1, hexene-1, 4-methylpentene-1, octene and the like.
- Method A JP 58-19309, JP 59-95292, JP 60-35005, etc.
- B JP 6-9724, JP 6-136195, No. 6-136196.
- a polyolefin resin polymerized by using a metallocene compound, that is, a metallocene polyethylene, is not limited to the above methods (A) and (B) in that good initial transparency and transparency persistence of the film can be obtained. Can be used.
- thermo rise elution fractionation MFR
- density density
- molecular weight distribution various other physical properties.
- Measurement of elution curve by temperature rise elution fractionation is described in "Journal of Applied Polymer Science. This is carried out based on the principle described in the literature such as “Showa 63”.
- the ethylene- ⁇ -olefin copolymer used as at least one component of the polyolefin resin of the present invention has an MFR measured by JIS-K7210 of 0.01 to 10 g / 10 min, preferably 0.1 to 5 g / A value of 10 minutes is shown. If the MFR is larger than this range, the film meanders during molding and is not stable. On the other hand, if the MFR is too smaller than this range, the resin pressure at the time of molding increases and a load is applied to the molding machine. Therefore, the increase in pressure must be suppressed by reducing the production amount, which is not practical.
- the ethylene- ⁇ -olefin copolymer used as at least one component of the polyolefin resin of the present invention has a density measured by JIS-K7112 of 0.880 to 0.930 g / cm 3 , preferably 0.8. A value of 880 to 0.920 g / cm 3 is shown. When the density is larger than this range, the transparency is deteriorated. On the other hand, if the density is smaller than this range, blocking occurs due to stickiness of the film surface, resulting in poor practicality.
- the ethylene- ⁇ -olefin copolymer used as at least one component of the polyolefin resin of the present invention has a molecular weight distribution (weight average molecular weight / number average molecular weight) determined by gel permeation chromatography (GPC).
- the value is 1.5 to 3.5, preferably 1.5 to 3.0.
- the molecular weight distribution is larger than this range, the mechanical strength is lowered, which is not preferable. If the molecular weight distribution is smaller than this range, the film meanders during molding and is not stable.
- the ethylene-vinyl acetate copolymer resin used in the present invention has a vinyl acetate content in the range of 10 to 25% by weight, preferably in the range of 12 to 20% by weight. If the vinyl acetate content is less than this range, the resulting film will be hard and will tend to wrinkle and sag when stretched in a house, which will have a negative effect on anti-fogging properties. If it is larger than the range, the melting point of the resin is low, so that the film loosens at high temperatures in summer during house extension, and is easily broken by wind and flapping with the house structure.
- the base film contains a hindered amine light stabilizer.
- the hindered amine light stabilizer can be contained in any one or more layers of the base film, but is preferably contained in the intermediate layer or the intermediate layer and the outer layer.
- the hindered amine light stabilizer that can be used in the present invention is a hindered amine light weathering agent that is usually blended for agricultural use.
- a hindered amine compound having at least two piperidine ring structures in the molecule and having a molecular weight of 500 or more ( Hereinafter, it is also referred to as “piperidine ring-containing hindered amine compound”).
- piperidine ring-containing hindered amine compound if the number of piperidine rings of the piperidine ring-containing hindered amine compound is less than 2, sufficient weather resistance cannot be obtained, and if the molecular weight is less than 500, volatilization tends to occur and long-term weather resistance cannot be obtained.
- the number of piperidine rings in the piperidine ring-containing hindered amine compound is preferably 2 to 50, and the molecular weight is preferably 750 or more.
- piperidine ring-containing hindered amine compound examples include bis (1,2,2,6,6-pentamethyl-4-piperidyl) -2-butyl-2- (3,5-ditert-butyl-4-hydroxybenzyl).
- Malonate tetra (2,2,6,6-tetramethyl-4-piperidyl) butanetetracarboxylate, tetra (1,2,2,6,6-pentamethyl-4-piperidyl) butanetetracarboxylate, bis ( 2,2,6,6-tetramethyl-4-piperidyl) ⁇ di (tridecyl) butanetetracarboxylate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) ⁇ di (tridecyl) butanetetra Carboxylate, 3,9-bis [1,1-dimethyl-2- ⁇ tris (2,2,6,6-tetramethyl-4-piperidyloxy Carbonyloxy) butylcarbonyloxy ⁇
- hindered amine compounds examples include TINUVIN 770, TINUVIN 780, TINUVIN 144, TINUVIN 622LD, TINUVIN NOR 371, CHIMASSORB 119FL, CHIMASSORB 944 (above, manufactured by Ciba Geigy), Sanol LS-765 (Sankyo LS-765) -63, MARK LA-68, MARK LA-62, MARK LA-67, MARK LA-57, LA-900, LA-81, NO-Alkyl-1 (above, manufactured by ADEKA), UV-3346, UV- 3529, UV-3581, UV-3853 (from Cytec), Hostabin N20, Hostabin N24, Hostabin N30, Hostabin 845, Hostabin NOW, Sande Bore PR-31, Nairosutabbu S-EED (or more, manufactured by Clariant Japan KK), UVINUL5050H (or more, BASF Japan Co., Ltd
- the content of the hindered amine compound is 0.001 to 5% by weight, preferably 0.01 to 1% by weight, based on 100% by weight of the polyolefin resin.
- the content is less than 0.001% by weight, a sufficient effect cannot be obtained, and when the content is more than 5% by weight, the effect is not improved, and the physical properties of the film are deteriorated.
- the hindered amine compound used in the present invention is preferably contained in the intermediate layer of the base film, or in the intermediate layer and the outer layer.
- an additive such as a hindered amine compound
- a master batch of the additive is prepared and kneaded with a base resin, but when a fluorosurfactant is added, the master batch is added. There is a tendency to color.
- a hindered amine compound is added, there is also an advantage that coloring of the masterbatch by the fluorosurfactant is suppressed.
- a copolymer of ethylene (A) and a cyclic aminovinyl compound (B) represented by the following formula (1) is formed on any one or more layers of the base film.
- R1 and R2 each independently represent a hydrogen atom or a methyl group
- R3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and preferably R1 and R2 are each a methyl group
- R3 is a hydrogen atom.
- an agricultural film that has excellent long-term weather resistance and bleed-out resistance, and is less likely to cause a decrease in translucency due to condensation with suppressed surface water repellency.
- the ethylene / cyclic aminovinyl compound copolymer is added in a large amount, the surface properties (water droplet contact angle, etc.) of the polyolefin film of the film can be changed, and can be suitably used for the purpose of the present invention.
- the ethylene / cyclic aminovinyl compound copolymer has the effect of significantly improving long-term weather resistance.
- the coating film adhesion is improved when an antifogging coating film is formed on the base film. Is preferable.
- the vinyl compound (B) represented by the formula (1) can be synthesized by a known method, for example, the method described in JP-B-47-8539, JP-A-48-65180, or the like.
- vinyl compound (B) represented by the formula (1) include 4-acryloyloxy-2,2,6,6-tetramethylpiperidine, 4-acryloyloxy-1,2,2,6,6. -Pentamethylpiperidine, 4-acryloyloxy-1-ethyl-2,2,6,6-tetramethylpiperidine, 4-acryloyloxy-1-propyl-2,2,6,6-tetramethylpiperidine, 4-acryloyl Oxy-1-butyl-2,2,6,6-tetramethylpiperidine, 4-methacryloyloxy-2,2,6,6-tetramethylpiperidine, 4-methacryloyloxy-1,2,2,6,6- Pentamethylpiperidine, 4-methacryloyloxy-1-ethyl-2,2,6,6-tetramethylpiperidine, 4-methacryloyloxy-1-buty -2,2,6,6-tetramethylpiperidine, 4-crotonoyloxy-2,2,6,6-tetramethylpiperidine, 4-
- the ethylene / cyclic aminovinyl compound copolymer preferably has a ratio of the (B) to the sum of the ethylene (A) and the cyclic aminovinyl compound (B) of 0.0005 to 0.85 mol%, More preferred is 0.001 to 0.55 mol%. That is, the preferred copolymer is one having a high light stability for a low content of the vinyl monomer having a hindered amine group in the side chain (cyclic aminovinyl compound (B)). When the concentration of the cyclic aminovinyl compound (B) is 0.0005 mol%, a sufficient light stabilizing effect is exhibited. On the other hand, when it exceeds 0.85 mol%, it tends to be substantially uneconomical.
- the ethylene / cyclic aminovinyl compound copolymer is such that (B) is not continuous in two or more in the copolymer, and the ratio of being isolated is 83% or more based on the total amount of (B), Preferably it is 90% or more.
- the proportion of the hindered amine group-containing vinyl monomers having two or more hindered amine groups that are estimated as described above is not continuous but is present in an isolated state of 83% or more based on the total amount of vinyl monomers (B) in the copolymer. Is preferred. If the proportion of vinyl monomers having hindered amine groups in the side chain is less than 83% without two or more vinyl monomers having hindered amine groups in the side chain, the light stability is relatively high In some cases, the feature of having
- the MFR (measured in accordance with JIS-K6760 (190 ° C., 2.16 kg load)) of the ethylene / cyclic aminovinyl compound copolymer is 0.1 to 200 g / 10 min, preferably 0.5 to It is 20 g / 10 minutes, more preferably 1 to 5 g / 10 minutes.
- the compatibility with the polyolefin resin is poor, and when blended, it causes visible defects in film applications such as fish eyes and boots.
- the MFR exceeds the above range, even if the copolymer has a large molecular weight, bleeding or blooming due to diffusion loss occurs, or when it is blended with a polyolefin resin, it causes a decrease in strength of the resulting resin composition. It becomes.
- the ethylene / cyclic aminovinyl compound copolymer was determined by creating a calibration curve with monodisperse polystyrene using GPC.
- the Mw / Mn (Q value) expressed as the ratio of the weight average molecular weight to the number average molecular weight is preferably in the range of 3 to 120. A particularly preferred range is 5-20.
- the content of the ethylene / cyclic aminovinyl compound copolymer in the polyolefin resin composition of the present invention is preferably 0.5 to 15 parts by weight, particularly preferably 0, per 100 parts by weight of the polyolefin resin. .5 to 10 parts by weight. If this content is less than the above range, the weather resistance is inferior because it is inferior, and if it exceeds the above range, it is not preferable in terms of economy.
- Examples of commercially available ethylene / cyclic aminovinyl copolymers that can be used include Novatec® LD / XJ100H (manufactured by Nippon Polychem Co., Ltd.).
- the ethylene / cyclic aminovinyl compound copolymer used in the present invention is not necessarily contained in all layers of the multilayer film, and may be contained in at least one layer.
- at least the inner layer preferably contains an ethylene / cyclic aminovinyl compound copolymer.
- the ethylene / cyclic aminovinyl compound copolymer can be used in combination with one or two or more hindered amine light stabilizers that are usually used. Further, one or two or more hindered amine weathering agents which are usually used can be used for the layer not containing the ethylene / cyclic aminovinyl compound copolymer.
- the ethylene / cyclic aminovinyl compound copolymer may be contained in all layers, but it is contained in the inner layer and the outer layer (outer surface of the house), for example.
- An agent can also be contained.
- blended for agricultural use can also be contained in the same layer with an ethylene-cyclic amino vinyl compound copolymer. In this case, the cost becomes more advantageous than the case where an ethylene / cyclic aminovinyl compound copolymer is used for all layers.
- additives usually used for synthetic resins can be used in combination.
- additives include UV absorbers, weathering agents, infrared absorbers, heat insulating agents, fillers, metal organic acid salts, basic organic acid salts and overbased organic acid salts, hydrotalcite compounds, Epoxy compounds, ⁇ -diketone compounds, polyhydric alcohols, halogen oxyacid salts, sulfur-based, phenol-based and phosphite-based antioxidants, heat stabilizers, lubricants, antistatic agents, colorants, antiblocking agents, etc. Can be given.
- ultraviolet absorber examples include 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone, and 5,5′-methylenebis (2-hydroxy-4-methoxybenzophenone).
- the content of the ultraviolet absorber is preferably more than 0.001% by weight and less than 2% by weight, more preferably 0.01 to 1% by weight, based on 100% by weight of the polyolefin resin. If the content is less than the above range, the effect of improving weather resistance is low, and if it exceeds the above range, there are problems such as a decrease in transparency due to bleeding out.
- the agricultural film in the present invention can be provided with good heat retention by adding an infrared absorber.
- an infrared absorber an inorganic compound (inorganic oxide, inorganic hydroxide, hydrotalcite, etc.) containing at least one atom of Mg, Ca, Al, Si and Li that is effective as a heat retaining agent can be used.
- the method for obtaining the infrared absorber (heat retention agent) represented by the above formula (3) is not particularly limited, and commercially available products can be used, for example, DHT4A, SYHT-3 (manufactured by Kyowa Chemical Co., Ltd.) HT-P (manufactured by Sakai Chemical Co., Ltd.), Optima (manufactured by Toda Kogyo Co., Ltd.), Mizukarak (manufactured by Mizusawa Chemical Co., Ltd.), and the like.
- the infrared absorbent (heat retention agent) according to the present invention is inorganic fine particles having infrared absorbing ability, and these can be used alone or in combination of two or more.
- the inorganic fine particles that can be used are not particularly limited, but inorganic compounds containing at least one atom selected from the components: Si, Al, Mg, and Ca can be used.
- the inorganic fine particles may be natural products or synthetic products.
- the inorganic fine particles can be used without being limited by the crystal structure, crystal particle diameter, and the like.
- the content of the inorganic fine particles is preferably more than 0.1% by weight and less than 15% by weight, more preferably 1 to 12% by weight with respect to 100% by weight of the polyolefin resin. If the content is less than the above range, the effect of improving heat retention is low, and if it exceeds the above range, there are problems such as a decrease in transparency.
- Examples of the metal species constituting the organic acid salt, basic organic acid salt and overbased organic acid salt of the metal include Li, Na, K, Ca, Ba, Mg, Sr, Zn, Cd, Sn, Cs,
- Examples of the organic acid include carboxylic acid, organic phosphoric acid, and phenol.
- Examples of the filler include silica, talc, aluminum hydroxide, hydrotalcite, calcium sulfate, calcium silicate, calcium hydroxide, and hydroxide in order to suppress stickiness of the film or to further increase the heat retention.
- Magnesium, kaolin clay, mica, alumina, magnesium carbonate, sodium aluminate, conductive zinc oxide, lithium phosphate and the like are used.
- One type of these fillers may be used, or two or more types may be used in combination.
- phenolic antioxidant examples include 2,6-ditert-butyl-p-cresol, 2,6-diphenyl-4-octadecyloxyphenol, stearyl (3,5-ditert-butyl-4- Hydroxyphenyl) -propionate, distearyl (3,5-ditert-butyl-4-hydroxybenzyl) phosphonate, thiodiethylene glycol bis [(3,5-ditert-butyl-4-hydroxyphenyl) propionate], 1,6 -Hexamethylene bis [(3,5-ditert-butyl-4-hydroxyphenyl) propionate] and the like.
- sulfur-based antioxidant examples include dialkylthiodipropionates such as dilauryl thiodipropionate, dimyristyl, and distearyl, and ⁇ -alkyl mercapto of polyols such as pentaerythritol tetra ( ⁇ -dodecyl mercaptopropionate). And propionic acid esters.
- phosphite antioxidant examples include trisnonylphenyl phosphite, tris (2,4-ditert-butylphenyl) phosphite, tris [2-tert-butyl-4- (3-tert-butyl- 4-hydroxy-5-methylphenylthio) -5-methylphenyl] phosphite.
- colorant examples include phthalocyanine blue, phthalocyanine green, hansa yellow, alizarin lake, titanium oxide, zinc white, ultramarine blue, permanent red, quinacridone, and carbon black.
- the base film of the present invention contains the above-described components in combination, and can further contain the following optional components that can be contained in the base film of the present invention as required.
- Optional components include other stabilizers, impact resistance improvers, cross-linking agents, fillers, foaming agents, antistatic agents, nucleating agents, plate-out preventing agents, surface treatment agents, flame retardants, fluorescent agents, anti-glare agents Agents, bactericides, metal deactivators, mold release agents, pigments, processing aids and the like.
- the base film of the present invention is weighed in a necessary amount for blending various additives, and blender such as a ribbon blender, a Banbury mixer, a Henschel mixer, a super mixer, a single or twin screw extruder, a roll, or a kneading machine. Any other known blending machine or mixing machine may be used.
- a method known per se for example, a melt extrusion molding method (including a T-die method and an inflation method), calendar processing, roll processing, extrusion molding processing, Blow molding, inflation molding, melt casting, pressure molding, paste processing, powder molding, and the like can be suitably used.
- the thickness of the base film of the present invention is preferably in the range of 0.01 to 1 mm in terms of strength and cost, more preferably 0.05 to 0.5 mm, and still more preferably 0.05 to 0.00 mm. 2 mm. If it is less than this range, there is a problem in strength, and if it exceeds this range, molding is difficult and there is a problem in stretch workability.
- the layer ratio constituting the three-layer film is preferably in the range of 1 / 0.5 / 1 to 1/5/1 from the viewpoint of moldability, transparency and strength, and 1/2/1 to 1/4/1. The range of is more preferable. Further, the ratio between the outer layer and the inner layer is not particularly specified, but it is preferable that the ratio is approximately the same because of the curl property of the obtained film.
- the film it is preferable to spread the film so that the side provided with the antifogging coating film is inside the house or tunnel.
- the polyolefin agricultural multilayer film of the present invention is an agricultural film in which a decrease in translucency due to condensation immediately after spreading is suppressed, and can be suitably used even in an area where condensation easily occurs. Furthermore, it is very easy to handle because it does not cause a decrease in openability that normally occurs when a surfactant component is added to the layer facing the outside of the house, and it is very easy to handle, and is provided as an agricultural film. It has a good balance of performance.
- the agricultural film of the present invention may be transparent, pear or semi-pear, and is suitable for use in agricultural films (so-called agricultural poly, agricultural sacbi, agricultural PO, etc.) for house, tunnel, mulching, bag hanging, etc. Can be used for
- Adjustment of laminated film 100 mm ⁇ (made by Pla Koken Co., Ltd.) is used for a three-layer die as a three-layer inflation molding device, and the extruder has an outer tube inner layer of 30 mm ⁇ (made by Pla Giken Co., Ltd.), two intermediate layers Is 40 mm ⁇ (manufactured by Pla Giken Co., Ltd.), the outer layer extruder temperature is 180 ° C., the intermediate layer extruder temperature is 170 ° C., the die temperature is 180 to 190 ° C., the blow ratio is 2.0 to 3.0, the take-off speed is 3 to A three-layer laminated film composed of the components shown in Tables 1 and 2 was obtained at 7 m / min and a thickness of 0.15 mm. Since these films are used with the end of the tube cut open when the house is stretched, the tube outer layer during film formation becomes the inner layer (inner surface) of the house when stretched when unfolded.
- HP-LDPE Branched polyethylene produced with a high-pressure radical catalyst (MFR: 1.1 g / 10 min, density 0.920) Novatec LD “YF30” manufactured by Nippon Polychem Metallocene PE: An ethylene / ⁇ -olefin copolymer produced with a metallocene catalyst (MFR: 2 g / 10 min, density 0.907) Kernel “KF270” manufactured by Nippon Polychem
- EVA1 Ethylene / vinyl acetate copolymer (vinyl acetate content 5% by weight, MFR 2 g / 10 min)
- EVA2 Ethylene / vinyl acetate copolymer (vinyl acetate content 15% by weight, MFR 2 g / 10 min)
- Antifogging agent A sorbitan palmitate 0.5 mol propylene oxide adduct antifogging agent B: sorbitan monopalmitate (S-40)
- Antifogging agent C polyoxypropylene sorbitan fatty acid ester antifogging agent
- D sorbitan / monostearic acid ester / 0.5 mol propylene oxide adduct antifogging agent
- E polyglycerol stearic acid ester antifogging agent
- F diglycerol distearic acid Ester antifogging agent
- G Monoglycerin monostearate fluorinated surfactant
- A Perfluoroalkylethylene oxide adduct “DS404” (Daikin Chemicals Sales Co., Ltd.)
- UV absorber A Cytec triaryltriazine UV absorber “UV1164” Synthetic hydrotalcite A: “DHT4A” manufactured by Kyowa Chemical Co., Ltd.
- Light Stabilizer A Light Stabilizer “Tinuvin NOR 371 FF” manufactured by Ciba Specialty Chemicals
- Light stabilizer B A hindered amine compound in which a hydrogen atom is bonded to the nitrogen atom of the piperidine ring (light stabilizer Kimasorb 944 manufactured by Ciba Specialty Chemicals)
- Ethylene / cyclic aminovinyl copolymer “Novatech LD ⁇ XJ100H” manufactured by Nippon Polyethylene Co., Ltd.
- the antifogging agent composition was blended as follows.
- Inorganic colloidal sol (colloidal silica) 4.0
- Thermoplastic resin (Sanmor SW-131: hydrophobic binder resin) 3.0
- the amount of inorganic colloidal sol is indicated by the amount of inorganic particles, and the amount of thermoplastic resin is indicated by the solid content of the polymer.
- Colloidal silica Snowtex 30 manufactured by Nissan Chemical Industries, average particle size of 15 nm Sunmole SW-131: acrylic emulsion T.M. manufactured by Sanyo Kasei Co., Ltd.
- A. Z. M Aziridine compound manufactured by Mutual Yakugyo Co., Ltd.
- the above antifogging agent composition was applied to the surface of the base film surface-treated in (2) using a # 5 bar coater.
- the applied film was kept in an oven at 80 ° C. for 1 minute to volatilize the liquid dispersion medium to form an antifogging coating film.
- the thickness of the coating film of each obtained film was about 1 ⁇ m.
- ⁇ Time until a water droplet starts flowing is 60 minutes or more and shorter than 150 minutes.
- X Time until a water droplet starts flowing is 150 minutes or more.
- B Anti-fogging durability (conditions for load test) The surface where the anti-fogging coating film is formed is placed in the upper part of the tank filled with water, and the outside temperature is kept at 23 ° C and the water temperature in the tank is kept at 50 ° C. The speed of cloudiness was observed with the naked eye, and the antifogging property was evaluated according to the above evaluation criteria based on the time until water droplets started to flow.
- Examples 1 to 4 Comparative Examples 1 to 3
- a three-layer film having a film thickness of 150 ⁇ m and a layer ratio of 1/3/1 was prepared, and the antifogging property was evaluated by the above method.
- the results are shown in Tables 1 and 2.
- a sorbitan surfactant is added to at least the intermediate layer of the base film, and the anti-fogging is mainly composed of a synthetic resin binder and / or an inorganic colloid sol on the inner surface of the base film.
- the polyolefin multilayer film for agriculture according to the present invention provided with an adhesive coating layer is remarkably excellent in initial antifogging property and sustainability of antifogging property.
- Example 1 Comparative Examples 4 to 5
- a three-layer film having a film thickness of 150 ⁇ m and a layer ratio of 1/3/1 is prepared, and the antifogging evaluation, the mouth opening evaluation and the antistatic effect are evaluated by the above methods I did it.
- the results are shown in Table 3.
- the agricultural polyolefin multilayer film in which a sorbitan surfactant is added to the intermediate layer of the base film and a fluorosurfactant is added to at least the outer layer of the base film is antifogging.
- the mouth opening property and the antistatic effect are also excellent.
- Example 5 By the above formulation, a three-layer film (antifogging coating application type) having a film thickness of 150 ⁇ m and a layer ratio of 1/3/1 is prepared, and antifogging evaluation and antifogging coating adhesion are evaluated by the above methods. It was. The results are shown in Table 4.
- the agricultural polyolefin-based multilayer film (Example 5) in which ethylene / cyclic aminovinyl copolymer is added to the inner layer of the base film is the case where ethylene / cyclic aminovinyl copolymer is not added to the inner layer (implementation).
- Example 6 it is shown that the adhesion of the antifogging coating film is improved.
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Abstract
Description
(1)少なくとも外層、中間層及び内層を有し、ポリオレフィン系樹脂を含有してなる基材フィルムの内層側表面に、合成樹脂バインダー及び無機質コロイドゾル、又は無機質コロイドゾルを主成分とする防曇性塗膜層が設けられており、当該基材フィルムの少なくとも中間層にソルビタン系防曇剤を含む、農業用ポリオレフィン系多層フィルム。
(2)基材フィルムの外層、又は外層及び内層にフッ素系界面活性剤成分を含む、(1)に記載の農業用ポリオレフィン系多層フィルム。
(3)前記フッ素系界面活性剤成分が、パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物を含む、(1)又は(2)に記載の農業用ポリオレフィン系多層フィルム。
(4)前記パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物が、炭素数5~8のパーフルオロアルキル基を有する、(3)に記載の農業用ポリオレフィン系多層フィルム。
(5)前記パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物が、炭素数5~6のパーフルオロアルキル基を有する、(4)に記載の農業用ポリオレフィン系多層フィルム。
(6)前記ソルビタン系防曇剤が、ソルビタンパルミチン酸エステル、ソルビタンパルミチン酸エステルのアルキレンオキシド付加物、ソルビタンステアリン酸エステル、ソルビタンステアリン酸エステルのアルキレンオキシド付加物、ポリオキシアルキレンソルビタン脂肪酸エステル、ソルビタンアルキレンオキシド付加物及びソルビタンモノパルミチン酸エステルからなる群から選択される少なくとも1種である、(1)~(5)のいずれか1に記載の農業用ポリオレフィン系多層フィルム。
(7)基材フィルムの中間層、又は中間層及び外層にヒンダードアミン系光安定剤を含む、(1)~(6)のいずれか1に記載の農業用ポリオレフィン系多層フィルム。
(8)合成樹脂バインダーが、アクリル系樹脂及び/又はウレタン系樹脂であることを特徴とする(1)~(7)のいずれか1に記載の農業用ポリオレフィン系多層フィルム。
(9)無機質コロイドゾルがコロイダルシリカ及び/又はコロイダルアルミナであることを特徴とする(1)~(8)のいずれか1に記載の農業用ポリオレフィン系多層フィルム。
(10)基材フィルムの1以上のいずれかの層に、エチレン(A)と下記式(1)で表される環状アミノビニル化合物(B)との共重合体を含有する、(1)~(9)のいずれか1に記載の農業用ポリオレフィン系多層フィルム。
を、提供するものである。
また、本発明においては、基材フィルムの外層、又は外層及び内層にフッ素系界面活性剤を含有させることにより、展張した直後にハウス外側のフィルム表面に結露が生じることによる透光性低下を抑制して光量不足による栽培性の低下を防止することができる。
このような本発明の農業用フィルムは、透明でも、梨地でも、半梨地でもよく、ハウス、トンネル、マルチング用、袋掛用等の農業用フィルム(いわゆる農PO)の用途に好適に使用することができる。
本発明における農業用ポリオレフィン系多層フィルムは、少なくとも外層、中間層及び内層を有するポリオレフィン系樹脂からなる基材フィルムの少なくとも中間層にソルビタン系防曇剤を含み、当該基材フィルムの内層側表面に、合成樹脂バインダー及び無機質コロイドゾル、又は無機質コロイドゾルを主成分とする防曇性塗膜層を設けたことを特徴とする。ここで、基材フィルムとは、防曇性塗膜等が形成される前のポリオレフィン系多層フィルムをいい、少なくとも外層、中間層、内層の三層で構成されるが、それ以上の層を含んでもよい。本発明においては、農業用多層フィルムをハウスに展張した際に、ハウス外側に面している層を外層といい、ハウス内側に面している層を内層という。
本発明において、ソルビタンステアリン酸エステル、ソルビタンパルミチン酸エステルには、モノエステル、ジエステル、トリエステル、及びそれらの混合物が含まれる。
ソルビタンステアリン酸エステル、ソルビタンパルミチン酸エステルに付加するアルキレンオキシドとしては、エチレンオキシド、プロピレンオキシドが好ましい。アルキレンオキシドが付加するモル数については、モル数が大きいと初期濡れ、低温無滴性に効果がある一方、持続性が低くなる傾向にある。
本発明において使用することができる他の防曇剤としては、グリセリンモノパルミテート、グリセリンモノステアレート、グリセリンモノラウレート、ジグリセリンモノパルミテート、グリセリンジパルミテート、グリセリンジステアレート、ジグリセリンモノパルミテート・モノステアレート、トリグリセリンモノステアレート、トリグリセリンジステアレートあるいはこれらのアルキレンオキシド付加物等などのグリセリン系界面活性剤やポリエチレングリコールモノステアレート、ポリエチレングリコールモノパルミテート、ポリエチレングリコールアルキルフェニルエーテルなどのポリエチレングリコール系界面活性剤やその他トリメチロールプロパンモノステアレートなどのトリメチロールプロパン系界面活性剤やペンタエリスリトールモノパルミテート、ペンタエリスリトールモノステアレートなどのペンタエリスリトール系界面活性剤、アルキルフェノールのアルキレンオキシド付加物;ソルビタン/グリセリンの縮合物と脂肪酸とのエステル、ソルビタン/アルキレングリコールの縮合物と脂肪酸とのエステル;ジグリセリンジオレートナトリウムラウリルサルフェート、ドデシルベンゼンスルホン酸ナトリウム、セチルトリメチルアンモニウムクロライド、ドデシルアミン塩酸塩、ラウリン酸ラウリルアミドエチルリン酸塩、トリエチルセチルアンモニウムイオダイド、オレイルアミノジエチルアミン塩酸塩、ドデシルピリジニウム塩などやそれらの異性体を含むものなどを挙げることができる。
フッ素系界面活性剤の具体例としては、通常の界面活性剤の疎水基のCに結合したHの代わりにその一部または全部をFで置換した界面活性剤で、特にパーフルオロアルキル基またはパーフルオロアルケニル基を含有する界面活性剤である。このようなフッ素系界面活性剤は、単独でまたは2種以上を組み合わせて使用することができる。パーフルオロアルキル基を有する含フッ素化合物としては、例えば、アニオン系含フッ素界面活性剤、カチオン系含フッ素界面活性剤、両性含フッ素界面活性剤、ノニオン系含フッ素界面活性剤、含フッ素オリゴマーなどがあげられる。本発明においては、パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物であるフッ素系界面活性剤が特に好ましい。
また、更に、炭素数が5~6のパーフルオロアルキル基を有するパーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物を用いると、この付加物は環境残存性が低いため、土壌などに残存することがなく環境的にも優れ、かつ、展張直後の撥水性抑制効果も高いのでとりわけ好ましい。
このようなエチレン・環状アミノビニル化合物共重合体を用いることにより、長期耐候性、耐ブリードアウト性に優れ、且つ表面の撥水性が抑制された結露による透光性の低下を招きにくい農業用フィルムを得ることが出来る。前記エチレン・環状アミノビニル化合物共重合体は、多量添加することによりフィルムのポリオレフィン系フィルムの表面性(水滴接触角等)を変えることができ、本発明の目的に好適に使用することが出来る。
また、前記エチレン・環状アミノビニル化合物共重合体により、格段に長期耐候性を向上させる効果を奏する。
更に、基材フィルムの1以上のいずれかの層にエチレン・環状アミノビニル化合物共重合体含有させると、基材フィルムに防曇性塗膜などを形成した場合に塗膜密着性を向上することができることから、好ましい。
また、このエチレン・環状アミノビニル化合物共重合体は、通常用いられる一種又は二種以上のヒンダードアミン系光安定剤と組み合わせて用いることができる。更に、エチレン・環状アミノビニル化合物共重合体を含有しない層に対して、通常用いられる一種又は二種以上のヒンダードアミン系耐候剤を用いることもできる。エチレン・環状アミノビニル化合物共重合体は、もちろん全層に含有させてもよいが、例えば内層と外層(ハウス外面)に含有させ、その他の層には農業用として通常配合されるヒンダードアミン系光安定剤を含有させることもできる。また、同一の層にエチレン・環状アミノビニル化合物共重合体と農業用として通常配合されるヒンダードアミン系光安定剤を含有させることもできる。その場合は全層にエチレン・環状アミノビニル化合物共重合体を用いる場合よりコスト的に有利になる。
Mg4.5Al2(OH)13CO3・3.5H2O(2)
[Al2(Li(1-x)・M(x+y))(OH)6+y]2(An-)2(1+x)/n・mH2O(3)(式中、MはMg及び/又はZnで、Aはn価のアニオン、mは0又は正の数、x及びyは0≦x<1、0≦y≦0.5の範囲である。)
更に、通常、ハウス外側に面した層に界面活性剤成分を添加した場合に生じる口開き性の低下を起こすことなく、加工所での帯電も少ないことから非常に扱いやすく、農業用フィルムとして具備すべき性能をバランス良く有している。本発明の農業用フィルムは、透明でも、梨地でも、半梨地でもよく、ハウス、トンネル、マルチング用、袋掛用等の農業用フィルム(いわゆる農ポリ、農サクビ、農PO等)の用途に好適に使用することができる。
3層インフレーション成形装置として3層ダイに100mmφ((株)プラ工研製)を用い、押出機はチューブ外内層を30mmφ((株)プラ技研製)2台、中間層を40mmφ((株)プラ技研製)として、外内層押出し機温度180℃、中間層押し出し機温度170℃、ダイス温度180~190℃、ブロー比2.0~3.0、引取り速度3~7m/分、厚さ0.15mmにて表1及び2に示した成分からなる3層の積層フィルムを得た。なお、これらのフィルムは、ハウス展張時にチューブの端部を切り開いて使用するため、展開した際に製膜時のチューブ外層が展張時にはハウスの内層(内面)となる。
HP-LDPE:高圧ラジカル法触媒で製造した分岐状ポリエチレン(MFR:1.1g/10分、密度0.920)日本ポリケム製ノバテックLD「YF30」
メタロセンPE:メタロセン触媒で製造したエチレン・αオレフィン共重合体(MFR:2g/10分、密度0.907)日本ポリケム製カーネル「KF270」
EVA1 :エチレン・酢酸ビニル共重合体(酢酸ビニル含有量5重量%、MFR2g/10分)
EVA2 :エチレン・酢酸ビニル共重合体(酢酸ビニル含有量15重量%、MFR2g/10分)
防曇剤B:ソルビタンモノパルミテート(S-40)
防曇剤C:ポリオキシプロピレンソルビタン脂肪酸エステル
防曇剤D:ソルビタン・モノステアリン酸エステル・0.5モルプロピレンオキサイド付加物
防曇剤E:ポリグリセリンステアリン酸エステル
防曇剤F:ジグリセリンジステアリン酸エステル
防曇剤G:モノグリセリンモノステアリン酸エステル
フッ素系界面活性剤A:パーフルオロアルキルエチレンオキシド付加物「DS404」(ダイキン化成品販売(株)製)
合成ハイドロタルサイトA:協和化学(株)製「DHT4A」
光安定剤A:チバ・スペシャルティ・ケミカルズ社製光安定剤 「Tinuvin NOR 371 FF」
光安定剤B:ピペリジン環の窒素原子に水素原子が結合したタイプのヒンダードアミン系化合物(チバ・スペシャルティ・ケミカルズ社製光安定剤 キマソーブ944)
エチレン・環状アミノビニル共重合体:日本ポリエチレン(株)製「ノバテックLD・XJ100H」(MFR=3g/10分(190℃、JIS-K6760)、密度=0.931g/cm3(JIS-K6760)、環状アミノビニル化合物含量=5.1重量%(0.7モル%)、孤立して存在する環状アミノビニル化合物の割合=90モル%、融点=111℃)
得られたチューブ状フィルムの外層表面を、放電電圧120V、放電電流4.7A、ラインスピード10m/minでコロナ放電処理を行い、JIS-K6768による「濡れ指数」を測定、確認した。
下記に示した主成分(シリカゾル及び/又はアルミナゾル)と熱可塑性樹脂と架橋剤及び液状分散媒とを配合して防曇剤組成物を得た。
無機質コロイドゾル(コロイダルシリカ) 4.0
熱可塑性樹脂(サンモールSW-131:疎水性バインダー樹脂) 3.0
架橋剤(T.A.Z.M) 0.1
分散媒(水/エタノール=3/1) 93
(注)無機質コロイドゾルの配合量は、無機質粒子量で示し熱可塑性樹脂の配合
量は重合体固形分量で示す。
サンモールSW-131:三洋化成社製アクリルエマルジョン
T.A.Z.M:相互薬工社製アジリジン系化合物
(a)初期防曇性(初期濡れ):結露しにくい条件での水滴が流れ始める迄の時間を基準として防曇性の判断基準とした。
(観察条件)
水をいれた水槽の上部に、防曇性塗膜を形成した表面を水槽内部に向けて配置し、外気温を12℃、水槽内気温を22℃に保持し、所定時間経過時点での防曇性の発現速さを肉眼で観察し、水滴が流れ始める迄の時間により、下記評価基準によって防曇性を評価した。
○:水滴が流れ始める迄の時間が60分より短いもの。
△:水滴が流れ始める迄の時間が60分以上150分より短いもの。
×:水滴が流れ始める迄の時間が150分以上のもの。
(b)防曇持続性
(負荷試験の条件)
水をいれた水槽の上部に、防曇性塗膜を形成した表面を水槽内部に向けて配置し、外気温を23℃、水槽内水温を50℃に保持し、1ヶ月経過時点での防曇性の発現速さを肉眼で観察し、水滴が流れ始める迄の時間により、上記評価基準によって防曇性を評価した。
各サンプルの帯電圧をスタティックオネストネーター(SHISHIDO.Co製)により測定し、初期帯電圧に対する5分後の帯電圧の割合(%)について以下の基準で評価した結果を表に示した。
○:初期帯電圧に対する5分後の帯電圧の割合(%)が20%より低い。
△:初期帯電圧に対する5分後の帯電圧の割合(%)が20~80%の範囲。
×:初期帯電圧に対する5分後の帯電圧の割合(%)が80%より高い。
各サンプルの口開き性を上記インフレーション成形装置で作成したばかりのフィルムで評価した。
方法=チューブ状のフィルムの四隅をハサミで切り開き、2枚のフィルムの片方を持って持ち上げたときの状態を目視で評価
◎:持ち上げる前からフィルム同士が完全に分離している状態
○:特に力を加えなくてもフィルムの同士が自然にはがれる状態
×:フィルム同士がはがれにくく人為的に力を加えないと分離できない状態
防曇性塗膜を形成(塗工)後のフィルムにおいて、成形品の塗膜を形成した面にセロハンテープを接着し、このセロハンテープを剥した時に、塗膜の剥離状況を肉眼で観察した。評価基準は、次の通りである。
○:塗膜が全く剥離せず、完全に残ったもの
○△:塗膜の2/3以上が剥離せず残ったもの
△:塗膜の2/3以上が剥離したもの
×:塗膜が完全に剥離したもの
上記配合により、フィルム厚150μm、層比1/3/1の三層フィルム(防曇塗膜塗布タイプ)を作成し、前記方法により防曇性評価を行なった。その結果を表1及び2に示す。
上記配合により、フィルム厚150μm、層比1/3/1の三層フィルム(防曇塗膜塗布タイプ)を作成し、前記方法により防曇性評価、口開き性評価及び帯電防止効果の評価を行なった。その結果を表3に示す。
上記配合により、フィルム厚150μm、層比1/3/1の三層フィルム(防曇塗膜塗布タイプ)を作成し、前記方法により防曇性評価、防曇性塗膜密着性の評価を行なった。その結果を表4に示す。
Claims (10)
- 少なくとも外層、中間層及び内層を有し、ポリオレフィン系樹脂を含有してなる基材フィルムの内層側表面に、合成樹脂バインダー及び無機質コロイドゾル、又は無機質コロイドゾルを主成分とする防曇性塗膜層が設けられており、当該基材フィルムの少なくとも中間層にソルビタン系防曇剤を含む、農業用ポリオレフィン系多層フィルム。
- 基材フィルムの外層、又は外層及び内層にフッ素系界面活性剤成分を含む、請求項1に記載の農業用ポリオレフィン系多層フィルム。
- 前記フッ素系界面活性剤成分が、パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物を含む、請求項1又は2に記載の農業用ポリオレフィン系多層フィルム。
- 前記パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物が、炭素数5~8のパーフルオロアルキル基を有する、請求項3に記載の農業用ポリオレフィン系多層フィルム。
- 前記パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物が、炭素数5~6のパーフルオロアルキル基を有する、請求項4に記載の農業用ポリオレフィン系多層フィルム。
- 前記ソルビタン系防曇剤が、ソルビタンパルミチン酸エステル、ソルビタンパルミチン酸エステルのアルキレンオキシド付加物、ソルビタンステアリン酸エステル、ソルビタンステアリン酸エステルのアルキレンオキシド付加物、ポリオキシアルキレンソルビタン脂肪酸エステル、ソルビタンアルキレンオキシド付加物及びソルビタンモノパルミチン酸エステルからなる群から選択される少なくとも1種である、請求項1~5のいずれか1項に記載の農業用ポリオレフィン系多層フィルム。
- 基材フィルムの中間層、又は中間層及び外層にヒンダードアミン系光安定剤を含む、請求項1~6のいずれか1項に記載の農業用ポリオレフィン系多層フィルム。
- 合成樹脂バインダーが、アクリル系樹脂及び/又はウレタン系樹脂であることを特徴とする請求項1~7のいずれか1項に記載の農業用ポリオレフィン系多層フィルム。
- 無機質コロイドゾルがコロイダルシリカ及び/又はコロイダルアルミナであることを特徴とする請求項1~8のいずれか1項に記載の農業用ポリオレフィン系多層フィルム。
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CN106688741A (zh) * | 2017-03-03 | 2017-05-24 | 广西点图包装有限公司 | 用于覆盖蔬菜的农用薄膜 |
JP2018530455A (ja) * | 2015-09-18 | 2018-10-18 | ダウ グローバル テクノロジーズ エルエルシー | 優れた液垂れ防止性能を備えた温室用多層フィルム |
JP2019206136A (ja) * | 2018-05-30 | 2019-12-05 | タキロンシーアイ株式会社 | 防汚染性を改善したポリオレフィン系積層体及びその製造方法 |
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CN105766494A (zh) * | 2014-12-24 | 2016-07-20 | 中国医学科学院药用植物研究所 | 一种用于预防植物冻害和虫草害的用品、及其用途 |
CA3062905A1 (en) | 2017-05-11 | 2018-11-15 | Dow Global Technologies Llc | Multilayer polyolefin greenhouse films with high transparency |
JP6502567B1 (ja) * | 2018-10-05 | 2019-04-17 | 住友化学株式会社 | 農業用フィルム及び農園芸用施設 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS64147A (en) * | 1987-06-23 | 1989-01-05 | Toho Chem Ind Co Ltd | Production of agricultural film excellent in antifogging and anticlouding property |
JPH11157025A (ja) * | 1997-09-26 | 1999-06-15 | Sumika Purasu Tec Kk | オレフィン系樹脂積層フィルム |
JP2001169674A (ja) * | 1999-09-29 | 2001-06-26 | Mitsubishi Chem Mkv Co | 農業用ポリオレフィン系樹脂フィルム |
JP2004255808A (ja) * | 2003-02-27 | 2004-09-16 | Chisso Corp | 農業用熱可塑性樹脂多層フィルム |
JP2004255807A (ja) * | 2003-02-27 | 2004-09-16 | Chisso Corp | 農業用熱可塑性樹脂多層フィルム |
JP2010104315A (ja) * | 2008-10-31 | 2010-05-13 | Mkv Dream Co Ltd | 農業用空気膜構造ハウス |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100721743B1 (ko) * | 1997-09-26 | 2007-08-16 | 산젠 가꼬 가부시키가이샤 | 적층필름 |
-
2012
- 2012-12-18 CN CN201210551832.3A patent/CN103538333A/zh active Pending
-
2013
- 2013-07-10 JP JP2014524838A patent/JPWO2014010626A1/ja active Pending
- 2013-07-10 KR KR1020147035789A patent/KR20150035720A/ko not_active Application Discontinuation
- 2013-07-10 WO PCT/JP2013/068860 patent/WO2014010626A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS64147A (en) * | 1987-06-23 | 1989-01-05 | Toho Chem Ind Co Ltd | Production of agricultural film excellent in antifogging and anticlouding property |
JPH11157025A (ja) * | 1997-09-26 | 1999-06-15 | Sumika Purasu Tec Kk | オレフィン系樹脂積層フィルム |
JP2001169674A (ja) * | 1999-09-29 | 2001-06-26 | Mitsubishi Chem Mkv Co | 農業用ポリオレフィン系樹脂フィルム |
JP2004255808A (ja) * | 2003-02-27 | 2004-09-16 | Chisso Corp | 農業用熱可塑性樹脂多層フィルム |
JP2004255807A (ja) * | 2003-02-27 | 2004-09-16 | Chisso Corp | 農業用熱可塑性樹脂多層フィルム |
JP2010104315A (ja) * | 2008-10-31 | 2010-05-13 | Mkv Dream Co Ltd | 農業用空気膜構造ハウス |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018530455A (ja) * | 2015-09-18 | 2018-10-18 | ダウ グローバル テクノロジーズ エルエルシー | 優れた液垂れ防止性能を備えた温室用多層フィルム |
CN106688741A (zh) * | 2017-03-03 | 2017-05-24 | 广西点图包装有限公司 | 用于覆盖蔬菜的农用薄膜 |
JP2019206136A (ja) * | 2018-05-30 | 2019-12-05 | タキロンシーアイ株式会社 | 防汚染性を改善したポリオレフィン系積層体及びその製造方法 |
WO2019230880A1 (ja) * | 2018-05-30 | 2019-12-05 | タキロンシーアイ株式会社 | 防汚染性を改善したポリオレフィン系積層体及びその製造方法 |
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JPWO2014010626A1 (ja) | 2016-06-23 |
KR20150035720A (ko) | 2015-04-07 |
CN103538333A (zh) | 2014-01-29 |
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