Classifications

• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B27/00—Layered products comprising a layer of synthetic resin
  • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
  • C08J5/18—Manufacture of films or sheets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B27/00—Layered products comprising a layer of synthetic resin
  • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
  • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B27/00—Layered products comprising a layer of synthetic resin
  • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
  • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
• • 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
• • C—CHEMISTRY; METALLURGY
  • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
  • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
  • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
  • C23F11/02—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors
• • 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
  • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
  • B32B2264/10—Inorganic particles
• • 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
  • B32B2439/00—Containers; Receptacles
• • 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
  • B32B2439/00—Containers; Receptacles
  • B32B2439/70—Food packaging
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
  • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
  • C08J2323/04—Homopolymers or copolymers of ethene
  • C08J2323/06—Polyethene
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K2201/00—Specific properties of additives
  • C08K2201/002—Physical properties
  • C08K2201/005—Additives being defined by their particle size in general
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/04—Oxygen-containing compounds
  • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/04—Oxygen-containing compounds
  • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
  • C08K5/098—Metal salts of carboxylic acids
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
  • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
  • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]

Definitions

• the present invention relates to a resin molded product.
• corrosion inhibitor compositions containing alkyl ammonium salt of dicarboxylic acid as a volatile corrosion inhibitor as well as a water-soluble corrosion inhibitor, and corrosion inhibitor resin compositions produced by blending any of such corrosion inhibitor compositions in a thermoplastic resin are known.
• packaging containers for metal products which are constituted by a multi-layer sheet produced by bonding, by means of thermal lamination, a film containing a volatile corrosion inhibitor over a base resin sheet directly contacting the film, and then putting the thermal laminate through a secondary forming process in such a way that the resin film containing the volatile corrosion inhibitor comes to the metal product side, are in the public domain.
• Patent Literature 2 the art of laminating a base material sheet on one side of a sheet that contains a volatile corrosion inhibitor, thereby demonstrating anticorrosive effect for a long period, is known.
• sheets produced by this art are still unable to achieve long-term anticorrosive property, and there is a persistent call, even today, for long-term anticorrosive solutions for a wide range of articles such as iron castings, steel sheets, galvanized steel sheets, and the like.
• a resin molded product structured in such a way that polyolefin resin layer 1 containing an ammonium salt of carboxylic acid, and polyolefin resin layer 2 containing a metal salt of aliphatic carboxylic acid, are stacked. 2. A resin molded product according to 1, wherein polyolefin resin layer 1 contains a metal salt of carboxylic acid. 3. A resin molded product according to 1 or 2, wherein polyolefin resin layer 2 contains a metal salt of nitrous acid. 4. A resin molded product according to any one of 1 to 3, wherein polyolefin resin layer 1 and/or 2 contains at least one of carboxylic acid, benzotriazole compound and tolyltriazole compound. 5.
• a container or sheet-like object or bag-like object constituted at least partially by this molded product can, when used to store, or when packed together with, a metal product or other product that may rust, maintain anticorrosive effect for a longer period of time.
• rusting of metal products during transport, storage, etc. can be prevented for a longer period of time without fail.
• the present invention represents a resin molded product comprising resin layer 1 and resin layer 2, and the invention also allows a base material layer to be provided with it depending on the situation.
• the ammonium salt of carboxylic acid under the present invention may be an ammonium salt of aliphatic carboxylic acid or ammonium salt of aromatic carboxylic acid.
• Ammonium salts of carboxylic acids that may be used include ammonium salts of aliphatic carboxylic acids such as butyric acid, isobutyric acid, methacrylic acid, valeric acid, caproic acid, caprylic acid, capric acid, lauric acid, tridecylic acid, myristic acid, palmitic acid, stearic acid, sorbic acid, oleic acid, oleylic acid, isohexanoic acid, 2-methyl pentanoic acid, 2-ethyl butanoic acid, isoheptanoic acid, isooctanoic acid, 2-ethyl hexanoic acid, isononanoic acid, isodecanoic acid, 2-propyl heptanoic acid, isoundecanoic acid, isododecanoic acid, 2-butyl octanoic acid, bromic acid, malonic acid, succinic acid, glutaric acid, a
• the content of the ammonium salt of carboxylic acid is preferably 0.01 to 10 parts by weight, or more preferably 0.1 to 9 parts by weight, or yet more preferably 0.2 to 6 parts by weight, per 100 parts by weight of the resin layer in which it is contained. If the ammonium salt of carboxylic acid is contained by less than 0.01 part by weight, demonstrating sufficient anticorrosive property becomes difficult; if its content exceeds 10 parts by weight, on the other hand, forming becomes difficult.
• the ammonium salt of carboxylic acid is contained in resin layer 1 in grain-like form, and its average particle size is 20 ⁇ m or greater, or preferably 20 to 400 ⁇ m, or more preferably 20 to 200 ⁇ m, or yet more preferably 20 to 100 ⁇ m. It should be noted that this average particle size is calculated based on the long diameters of the particles of ammonium salt of carboxylic acid contained in the resin layer, after removing the particles whose long diameter is 10 ⁇ m or smaller. Because fine particles may not contribute significantly to the maintenance of long-term anticorrosive property, the foregoing means that such fine particles are small in number and that many particles whose particle size is in a certain range are contained.
• the maximum particle size of the ammonium salt of carboxylic acid contained in resin layer 1 is preferably 5000 ⁇ m or smaller, or more preferably 3000 ⁇ m or smaller, or yet more preferably 500 ⁇ m or smaller. If the particle size of the ammonium salt of carboxylic acid exceeds 5000 ⁇ m, the strength of the resin molded product may drop or the metal product may be contaminated due to detachment of particles, etc.
• the maximum particle size represents the largest particle size among the measured particle sizes of 1,000 particles.
• the resin-covered particles of ammonium salt of carboxylic acid form convex parts on the surface of resin layer 1. Presence of these convex parts allows more gas to be generated for use in preventing rust, which contributes to improvement of anticorrosive property. Also, these convex parts on the film surface have the effect of preventing adhesion to the article, etc., to be prevented from rusting, and they can also prevent contamination of the surface of the article to be prevented from rusting as a result of the particles of ammonium salt of carboxylic acid contacting the article directly.
• the aforementioned average particle size under the present invention relates to the ammonium salt of carboxylic acid which is contained in resin layer 1 after resin layer 1 has been formed.
• Metal salts of carboxylic acids that can be contained in polyolefin resin layer 1 under the present invention include metal salts of aliphatic carboxylic acids and metal salts of aromatic carboxylic acids.
• polyolefin resin layer 2 under the present invention on the other hand, a metal salt of aliphatic carboxylic acid is contained.
• metal salts of carboxylic acids include metal salts such as sodium salts, potassium, calcium, magnesium, and the like, of aliphatic carboxylic acids such as isobutyric acid, methacrylic acid, valeric acid, caproic acid, caprylic acid, capric acid, lauric acid, tridecylic acid, myristic acid, palmitic acid, stearic acid, sorbic acid, oleic acid, oleylic acid, isohexanoic acid, 2-methyl pentanoic acid, 2-ethyl butanoic acid, isoheptanoic acid, isooctanoic acid, 2-ethyl hexanoic acid, isononanoic acid, isodecanoic acid, 2-propyl heptanoic acid, isoundecanoic acid, isododecanoic acid, 2-butyl octanoic acid, bromic acid, malonic acid, succinic acid, glutaric acid
• the metal salt of carboxylic acid contained in resin layer 1 accounts for preferably 0.001 to 10 parts by weight, or more preferably 0.01 to 5 parts by weight, per 100 parts by weight of resin layer 1 in which it is contained. If the metal salt of carboxylic acid is contained by less than 0.001 part by weight, demonstrating sufficient anticorrosive property becomes difficult; if its content exceeds 10 parts by weight, on the other hand, not only forming becomes difficult, but demonstrating long-term anticorrosive property also becomes difficult.
• the metal salt of aliphatic carboxylic acid contained in resin layer 2 accounts for preferably 0.001 to 10 parts by weight, or more preferably 0.01 to 5 parts by weight, per 100 parts by weight of resin layer 2 in which it is contained. If the metal salt of aliphatic carboxylic acid is contained by less than 0.001 part by weight, demonstrating sufficient anticorrosive property becomes difficult; if its content exceeds 10 parts by weight, on the other hand, not only forming becomes difficult, but demonstrating long-term anticorrosive property also becomes difficult. In addition, sufficient anticorrosive property does not manifest, either, if a metal salt of aromatic carboxylic acid is contained instead of a metal salt of aliphatic carboxylic acid.
• a metal salt of aromatic carboxylic acid may be contained in resin layer 2 to the extent that it does not diminish the effects of the present invention.
• the carboxylic acid under the present invention may be an aliphatic carboxylic acid or aromatic carboxylic acid.
• carboxylic acids include, among others, isobutyric acid, methacrylic acid, valeric acid, caproic acid, caprylic acid, capric acid, lauric acid, tridecylic acid, myristic acid, palmitic acid, stearic acid, sorbic acid, oleic acid, oleylic acid, isohexanoic acid, 2-methyl pentanoic acid, 2-ethyl butanoic acid, isoheptanoic acid, isooctanoic acid, 2-ethyl hexanoic acid, isononanoic acid, isodecanoic acid, 2-propyl heptanoic acid, isoundecanoic acid, isododecanoic acid, 2-butyl octanoic acid, bromic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, unde
• the content of such carboxylic acid is preferably 0.001 to 10 parts by weight, or more preferably 0.01 to 5 parts by weight, per 100 parts by weight of the resin layer in which it is contained. If the carboxylic acid is contained by less than 0.001 part by weight, further improving the anticorrosive property becomes difficult; if its content exceeds 10.0 parts by weight, on the other hand, not only forming becomes difficult, but demonstrating long-term anticorrosive property also becomes difficult.
• benzotriazole compound/tolyltriazole compound under the present invention one or more types selected from benzotriazole, 4-methyl benzotriazole, and 5-methyl benzotriazole, etc., may be adopted.
• the content of such benzotriazole compound/tolyltriazole compound is preferably 0.001 to 10 parts by weight, or more preferably 0.01 to 5 parts by weight, per 100 parts by weight of the resin layer in which it is contained. If the benzotriazole compound/tolyltriazole compound is contained by less than 0.001 part by weight, further improving the anticorrosive property becomes difficult; if its content exceeds 10 parts by weight, on the other hand, not only forming becomes difficult, but demonstrating long-term anticorrosive property also becomes difficult.
• metal salt of nitrous acid under the present invention one or more types selected from sodium salt, potassium salt, calcium salt, and magnesium salt of nitrous acid, etc., may be adopted.
• the content of such metal salt of nitrous acid is preferably 0.001 to 10 parts by weight, or more preferably 0.01 to 5 parts by weight, per 100 parts by weight of the resin layer in which it is contained. If the metal salt of nitrous acid is contained by less than 0.001 part by weight, further improving the anticorrosive property becomes difficult; if its content exceeds 10 parts by weight, on the other hand, not only forming becomes difficult, but demonstrating long-term anticorrosive property also becomes difficult.
• one or more types selected from polyolefin polymers i.e., olefin homopolymers and/or copolymers using an olefin as a monomer may be used independently for each layer.
• Olefins (olefin monomers) that may constitute these polyolefin polymers include ethylene, propylene, 1-butene, 3-methyl-1-butene, 1-pentene, 3-methyl-1-pentene, 4-methyl-1-pentene, 1-hexene, 1-octene, and the like. Accordingly, these polyolefin polymers may be ethylene polymers, propylene polymers, 1-butene polymers, 1-hexene polymers, 4-methyl-1-pentene polymers, and the like. Any one of these polymers may be used alone, or two or more of them may be combined. In other words, a polyolefin polymer may be a mixture of various polymers.
• ethylene polymers include ethylene homopolymers (polyethylenes) and copolymers of ethylene and other monomer(s) (ethylene copolymers).
• ethylene homopolymers include low-density polyethylenes (LDPE), linear low-density polyethylenes (L-LDPE), medium-density polyethylenes (MDPE), and high-density polyethylenes (HDPE).
• ethylene copolymers include ethylene-propylene copolymer, ethylene-1-butene copolymer, ethylene-1-pentene copolymer, ethylene-1-hexene copolymer, ethylene-1-octene copolymer, ethylene-4-methyl-1-pentene copolymer, and the like.
• ethylene units (ethylenic constitutional units) in the ethylene copolymer only need to account for 50% or more (normally no more than 99.999%) of all constitutional units, they may account for 80 to 99.999%, or 90 to 99.995%, or even 99.0 to 99.990%, of all constitutional units, for example.
• propylene polymers include propylene homopolymers (polypropylenes) and copolymers of propylene and other monomer(s) (propylene copolymers).
• Propylene copolymers include propylene-ethylene copolymer, propylene-1-butene copolymer, propylene-1-pentene copolymer, propylene-1-octene copolymer, and the like.
• propylene units (propylenic constitutional units) in the propylene copolymer only need to account for 50% or more (normally no more than 99.999%) of all constitutional units, they may account for 80 to 99.999%, or 90 to 99.995%, or even 99.0 to 99.990%, of all constitutional units, for example.
• each polyolefin polymer may contain any constitutional unit due to a non-olefin monomer, to the extent that it does not have harmful effects on achieving the object of the present invention.
• Non-olefin monomers include unsaturated carboxylic acids (acrylic acid, methacrylic acid, etc.), unsaturated carboxylic acid esters (methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate, dimethyl maleate, diethyl maleate, etc.), vinyl esters (vinyl acetate, vinyl propionate, fumaric acid, maleic anhydride, maleic acid monoester, etc.), and the like. Any one of the foregoing may be used alone, or two or more of them may be combined.
• the constitutional units due to non-olefin monomers in the polyolefin polymer account for no more than 40% (normally 0.001% or more) of all constitutional units. For example, they may account for 0.001 to 25%, or 0.005 to 15%, or even 0.01 to 10%, of all constitutional units.
• the density of the polyolefin resin is 0.880 to 0.950 g/cm 3 from the viewpoint of processability.
• its melt flow rate (MFR) is preferably in a range of 1.0 to 10.0 g/10 min.
• the resin has an appropriate viscosity during melt processing, the granular ammonium salt of carboxylic acid can be encased and covered in/with the resin, which makes it possible to prevent the corrosion inhibitor from detachment of the resin molded product.
• antiblocking agent AB agent
• lubricant antioxidant
• antistatic agent antioxidant
• UV absorbent UV absorbent
• processability improving agent and other known additives for resins
• resin layers 1 and 2 each independently have a thickness of 30 to 500 ⁇ m, or preferably a thickness of 30 to 200 ⁇ m.
• a molded product constituted only by resin layer 1 that contains only an ammonium salt of carboxylic acid still exhibits a certain level of long-term anticorrosive property; however, a molded product offering excellent anticorrosive property for a longer period of time can be obtained if one or more of metal salt of carboxylic acid, carboxylic acid, benzotriazole compound, and tolyltriazole compound is/are, simultaneously, further contained, although the reason for this is not clear and the specific outcome also varies depending on the type of the metal to be prevented from rusting.
• the long-term anticorrosive property can be improved further by stacking resin layer 1 that contains an ammonium salt of carboxylic acid, and resin layer 2 that contains one or more of metal salt of aliphatic carboxylic acid, metal salt of nitrous acid, carboxylic acid, benzotriazole compound, and tolyltriazole compound.
• resin layer 1 that contains an ammonium salt of carboxylic acid
• resin layer 2 that contains one or more of metal salt of aliphatic carboxylic acid, metal salt of nitrous acid, carboxylic acid, benzotriazole compound, and tolyltriazole compound.
• the resin molded product proposed by the present invention may further have a base material layer provided on the surface on resin layer 1 side and/or resin layer 2 side.
• the base material layer is provided to add strength, as well as gas barrier property and water vapor barrier property, to the molded product under the present invention, and also to improve the feel, esthetics, and the like.
• any material may be adopted that does not inhibit the anticorrosive effect achieved by resin layers 1 and 2, but preferably such material offers excellent adhesion to the resins constituting resin layer 1 and resin layer 2.
• materials that may be adopted for constituting the base material layer include the aforementioned resins usable for resin layer 1 and resin layer 2, resins offering excellent adhesion to resin layer 1 and resin layer 2, as well as woven fabrics, nonwoven fabrics, and paper.
• the resin layer may or may not be porous.
• a method for forming a base material layer using such resin it may be formed simultaneously when resin layer 1 and/or resin layer 2 is formed, or a method whereby a base material layer is formed separately from resin layer 1 and resin layer 2 and then stacked on top using any known means, may be adopted.
• a resin molded product having resin layers 1 and 2 is formed by any known means such as extrusion, inflation, vacuum forming, pressure forming, etc., and may have a desired shape such as film, sheet-like object, bag-like object, laminated sheet-like object, cylinder, or box. And, such resin molded product may be used so that its face on the resin layer 1 side is positioned on the inner side of a container or packaging sheet, or specifically on the side of the article to be stored or packaged and thus prevented from rusting; or, it may be used so that its face on the resin layer 2 side is positioned on the inner side of a container or packaging sheet, or specifically on the side of the article to be stored or packaged and thus prevented from rusting.
• the average particle size of the ammonium salt of carboxylic acid falls within a specified range.
• the ammonium salt of carboxylic acid tends to break up as it is added to the resin and kneaded together, and also in the forming process, and consequently its average particle size becomes smaller; accordingly, attention is required to ensure the average particle size falls within the range specified under the present invention after the forming.
• the generating quantity of the anticorrosive gas can be controlled and consequently the anticorrosive effect can be maintained stably over a long period.
• the adoption of two resin layers allows moisture to permeate gradually into resin layer 2 or 1 from its surface, which ensures that the anticorrosive gas also generates gradually to maintain high anticorrosive effect more stably over a long period without having to add a carboxylic acid-modified polyolefin polymer, wax, nonionic surfactant, inorganic porous material, or other sustained anticorrosive action release agent.
• test pieces per C below were suspended by a nylon fishing line inside a frame of 100 mm long ⁇ 100 mm wide ⁇ 150 mm high, and the frame was gusset-sealed using each of the films produced.
• This test setup was exposed in the test environment per B below for the specified period, after which the surface was evaluated for rusting condition based on the evaluation method per D below.
• Transition time setting 2 hours, for a total of 12 hours per cycle
• Resin layer 1 was photographed using a stereoscopic microscope LEICA DFC295, and measurement was performed based on the photographed data.
• the term “average particle size” under the present invention refers to the value obtained by the formula below based on a population of 1,000 particles whose long diameter exceeds 10 ⁇ m.
• Average particle size (Total sum of long diameters of particles whose long diameter exceeds 10 ⁇ m)/Number of particles
• each Example and Comparative Example the additive quantities such as “1 part” represent additive quantities (based on part by weight) per 100 parts by weight of each resin layer.
• each Example is an example of a molded product which is constituted by resin layer 1 (thickness 50 ⁇ m) and resin layer 2 (thickness 50 ⁇ m), stacked, and whose total thickness is 100 ⁇ m.
• Example 6 the evaluation of the 14-day test using iron casting was 0; however, when 1 part of ammonium benzoate and 1 part of sodium sebacate were added to one resin layer, as described in Comparative Example 1, the evaluation of the 14-day test using iron casting was A.

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• Chemical & Material Sciences (AREA)
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• Organic Chemistry (AREA)
• Materials Engineering (AREA)
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• Metallurgy (AREA)
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• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Preventing Corrosion Or Incrustation Of Metals (AREA)
• Laminated Bodies (AREA)

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• 2017
  • 2017-08-04 JP JP2017151897A patent/JP6247422B1/ja active Active
  • 2017-08-08 WO PCT/JP2017/028826 patent/WO2018079010A1/ja active Application Filing
  • 2017-08-08 CN CN201780033254.5A patent/CN109311295A/zh active Pending
  • 2017-08-08 US US16/307,896 patent/US20190300665A1/en not_active Abandoned
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