JP2003128846A - Resin structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide resin structure that restrains a lowering of toughness, which is essential characteristics of a polyolefin resin, and has characteristics enhancing anti-permeability of chemical liquid and gas uniquely. SOLUTION: This resin structure is characterized in that it is composed of 100 wt.% of a resin composition containing (a) 20-80 wt.% of a polyolefin resin and (b) 80-20 wt.% of a thermoplastic resin except the polyolefin resin, and (c) a compatibility improver of 0.1-60 wt.% based on the above resin composition of 100 wt.%, and thickness of an interfacial phase of a molding product made of the resin composition between (a) the polyolefin resin phase and (b) the thermoplastic resin phase except the polyolefin resin, which is observed with an electron microscope, is 20-100 nm.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a resin structure having excellent gas and / or liquid permeation resistance. In particular, the present invention relates to a resin structure having specific toughness, permeation resistance, and moldability obtained by forming a specific phase structure of a polyolefin resin and a thermoplastic resin other than the polyolefin resin, for example, polyphenylene sulfide resin.

[0002]

Polyolefin resins such as polyethylene and polypropylene are widely used as the most general plastics for daily sundries, toys, machine parts, electric / electronic parts and automobile parts. However, in recent years, resin products that are required to have gas barrier properties (permeation resistance) for the purpose of preventing leakage of contents and preventing entry of outside air in order to ensure safety, storage stability, and environmental pollution prevention properties It is increasing. Among them, for automobile fuel tanks, etc., the switch from metal to plastic is being actively considered because of its lightness, ease of molding, flexibility in design, ease of handling, etc. In order to secure storage stability and further prevent environmental pollution, it is important to prevent leakage of contents and to prevent entry of outside air, and materials having permeation resistance are required. However, polyolefin containers such as polyethylene and polypropylene are the most common plastic containers, but their range of use is often restricted due to insufficient barrier properties against gasoline and certain oils. , The improvement is desired.

As a method for improving this, it has been proposed to blend a thermoplastic resin such as a polyphenylene sulfide resin having a high barrier property into the above-mentioned polyolefin resin to form an alloy, but the polyphenylene sulfide resin is a resin having low toughness. Yes, it significantly reduces the toughness, which is one of the characteristics of polyolefin resins. JP 2001
In JP-A-151087, by using a compatibility improver as a third component when melt-kneading a polyolefin-based elastomer and a thermoplastic resin, the interfacial tension between the two is lowered,
It is disclosed that the characteristics of both components can be effectively exhibited because the particle size of the dispersed phase becomes fine. Although the toughness can be improved by strengthening the interfacial adhesion between the polyolefin resin and the polyphenylene sulfide resin by adding the compatibility improver in this way, in the high-speed surface impact test, along the flow direction of the molten resin during molding. It is not enough to cause cracking. Further, improvement of toughness can be achieved by adding a large amount of the compatibility improver, but addition of a large amount of the compatibility improver remarkably lowers fluidity and deteriorates moldability.

[0004]

DISCLOSURE OF THE INVENTION The present invention has an object to improve the barrier property of a polyolefin resin while suppressing the deterioration of the toughness property which is an essential feature of the polyolefin resin, and to improve the barrier properties of chemicals and gas. An object is to provide a resin structure that is specifically improved.

[0005]

The inventors of the present invention have studied to solve the above-mentioned problems, and as a result, a resin obtained by blending a specific amount of a polyolefin resin, a thermoplastic resin other than the polyolefin resin, and a compatibility improver. In the structure,
The inventors have found that the above problems can be solved by controlling the thickness of the interfacial phase of the polyolefin resin phase and the thermoplastic resin phase other than the polyolefin resin observed with an electron microscope to be 20 to 100 nm, and have reached the present invention.

That is, according to the present invention, (1) (a) 20 to 80% by weight of a polyolefin resin and (b) 100% by weight of a resin composition comprising 80 to 20% by weight of a thermoplastic resin other than the polyolefin resin, (c) ) A polyolefin resin phase composed of a resin composition body containing 0.1 to 60% by weight of a compatibility improver and observed with an electron microscope of a molded article made of the resin composition (a) a polyolefin resin phase and (b) The thickness of the interfacial phase of the thermoplastic resin phase other than the polyolefin resin is 2
A resin structure having a thickness of 0 to 100 nm,
(2) (b) The thermoplastic resin other than the polyolefin resin is at least one selected from a thermoplastic polyester resin, a polyamide resin, and a polyphenylene sulfide resin, and the resin structure according to (1) above. Body, (3) (b) the thermoplastic resin other than the polyolefin resin is a polyphenylene sulfide resin, wherein the resin structure according to the above (1) to (2).
(4) The resin structure according to any one of (1) to (3), wherein the (a) polyolefin resin is polyethylene, and (5) the (a) polyolefin resin has a specific gravity of 0.95. The resin structure according to any one of (1) to (4) above, which is a high-density polyethylene, (6) (c) a compatibility improver, and (b) a thermoplastic resin other than a polyolefin resin. The resin structure according to any one of the above (1) to (5), characterized in that the resin is melt-kneaded in advance in whole or in part and then melt-kneaded with the (a) polyolefin resin. Is a drug solution and /
Alternatively, the present invention provides a resin structure according to any one of (1) to (6), which is a container for transporting or storing gas and its accessory.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. In the present invention, “weight” means “mass”.

The polyolefin resin (a) used in the present invention is a thermoplastic resin obtained by polymerizing or copolymerizing olefins such as ethylene, propylene, butene, isoprene and pentene. As specific examples, polyethylene, polypropylene, polystyrene, polyacrylic acid ester, polymethacrylic acid ester, poly 1-
A homopolymer of butene, poly-1-pentene, polymethylpentene, etc., an ethylene / α-olefin copolymer, a vinyl alcohol ester homopolymer, and a heavy polymer obtained by hydrolyzing at least a part of a vinyl alcohol ester homopolymer. A polymer, a polymer obtained by hydrolyzing at least a part of a copolymer of ((ethylene and / or propylene) and vinyl alcohol ester), [(ethylene and / or propylene) and (unsaturated carboxylic acid and / or Or an unsaturated carboxylic acid ester)], [(ethylene and / or propylene) and (unsaturated carboxylic acid and / or unsaturated carboxylic acid ester) at least a part of the carboxyl group of the copolymer] Metal chlorinated copolymer], block copolymer of conjugated diene and vinyl aromatic hydrocarbon, and , Hydrides of the block copolymer.

Among them, polyethylene, polypropylene, ethylene / α-olefin copolymer, [copolymer of (ethylene and / or propylene) and (unsaturated carboxylic acid and / or unsaturated carboxylic acid ester)],
[Copolymer in which at least a part of the carboxyl group of the copolymer of (ethylene and / or propylene) and (unsaturated carboxylic acid and / or unsaturated carboxylic acid ester) is metallized] is preferable.

The ethylene / α-olefin copolymer referred to herein is a copolymer of ethylene and at least one or more α-olefin having 3 to 20 carbon atoms, and has the above-mentioned 3 to 20 carbon atoms. Examples of the α-olefin include propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1-
Decene, 1-undecene, 1-dodecene, 1-tridecene, 1-tetradecene, 1-pentadecene, 1-hexadecene, 1-heptadecene, 1-octadecene, 1-nonadecene, 1-eicosene, 3-methyl-1-butene,
3-methyl-1-pentene, 3-ethyl-1-pentene, 4-methyl-1-pentene, 4-methyl-1-hexene, 4,4-dimethyl-1-hexene, 4,4-dimethyl-1- Pentene, 4-ethyl-1-hexene, 3-
Ethyl-1-hexene, 9-methyl-1-decene, 11
-Methyl-1-dodecene, 12-ethyl-1-tetradecene and combinations thereof. These α
Among the olefins, a copolymer using an α-olefin having 3 to 12 carbon atoms is preferable from the viewpoint of improving mechanical strength. This ethylene / α-olefin copolymer is α-
The olefin content is preferably 1 to 30 mol%, more preferably 2 to 25 mol%, and further preferably 3 to 20 mol%.

Further, 1,4-hexadiene, dicyclopentadiene, 2,5-norbornadiene, 5-ethylidene norbornene, 5-ethyl-2,5-norbornadiene, 5- (1'-propenyl) -2-norbornene and the like are not included. At least one kind of conjugated diene may be copolymerized.

The unsaturated carboxylic acid used in the [copolymer of (ethylene and / or propylene) and (unsaturated carboxylic acid and / or unsaturated carboxylic acid ester)] is either acrylic acid or methacrylic acid. Or a mixture thereof, and examples of the unsaturated carboxylic acid ester include methyl ester, ethyl ester, propyl ester, butyl ester, pentyl ester, hexyl ester, heptyl ester of these unsaturated carboxylic acids,
Examples thereof include octyl ester, nonyl ester, decyl ester, and the like, or a mixture thereof, but a copolymer of ethylene and methacrylic acid, and a copolymer of ethylene, methacrylic acid, and acrylic acid ester are particularly preferable.

Among these polyolefin resins, low,
Medium and high density polyethylene, polypropylene, ethylene / α-olefin copolymers are preferred. More preferably low, medium and high density polyethylene, particularly preferably
It is a high-density polyethylene having a density of 0.94 to 0.97 g / cm 3.

The melt flow rate (a) of the polyolefin resin (a) of the present invention (hereinafter abbreviated as MFR: ASTM D 1
238) is preferably 0.01 to 70 g / 10 minutes, more preferably 0.03 to 60 g / 10 minutes. If the MFR is less than 0.01 g / 10 minutes, the fluidity will be poor, and if it exceeds 70 g / 10 minutes, the impact strength will be low, such being undesirable.

The method for producing the (a) polyolefin resin used in the present invention is not particularly limited, and any of radical polymerization, coordination polymerization using a Ziegler-Natta catalyst, anion polymerization, coordination polymerization using a metallocene catalyst, etc. can be used. Can also be used.

Further, in the present invention, it is preferable that a part or all of the (a) polyolefin resin is modified with at least one compound selected from unsaturated carboxylic acids or derivatives thereof. When a modified polyolefin resin is used, the compatibility is improved, the controllability of the phase separation structure of the resulting resin structure is improved, and as a result, excellent barrier properties are exhibited, which is one of the preferred embodiments. is there.

Examples of unsaturated carboxylic acids or their derivatives used as modifiers include acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, crotonic acid, methylmaleic acid, methylfumaric acid, mesaconic acid,
Citraconic acid, glutaconic acid and metal salts of these carboxylic acids, methyl hydrogen maleate, methyl hydrogen itacone, methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, hydroxyethyl acrylate, methyl methacrylate, Methacrylic acid 2
-Ethylhexyl, hydroxyethyl methacrylate, aminoethyl methacrylate, dimethyl maleate, dimethyl itaconic acid, maleic anhydride, itaconic anhydride, citraconic anhydride, endobicyclo- (2,2,1) -5-
Heptene-2,3-dicarboxylic acid, endobicyclo-
(2,2,1) -5-heptene-2,3-dicarboxylic acid anhydride, maleimide, N-ethylmaleimide, N-butylmaleimide, N-phenylmaleimide, glycidyl acrylate, glycidyl methacrylate, glycidyl methacrylate, Examples thereof include glycidyl itaconate, glycidyl citracone, and 5-norbornene-2,3-dicarboxylic acid. Among these, unsaturated dicarboxylic acids and acid anhydrides thereof are preferable, and maleic acid and maleic anhydride are particularly preferable.

The method of introducing these unsaturated carboxylic acid or its derivative component into the polyolefin resin is not particularly limited, and the olefin compound as the main component and the unsaturated carboxylic acid or its derivative compound are copolymerized beforehand, or the unmodified polyolefin is used. A method such as introducing an unsaturated carboxylic acid or a derivative compound thereof into the resin by performing a grafting treatment using a radical initiator can be used. The amount of the unsaturated carboxylic acid or its derivative component introduced is preferably 0.001 to 40 mol%, more preferably 0.01 to 40% by mol based on the whole olefin monomer in the modified polyolefin.
It is suitable to be in the range of ˜35 mol%.

The thermoplastic resin other than the (b) polyolefin resin used in the present invention is not particularly limited and may be appropriately selected depending on the purpose of use of the resin structure. Specific examples thereof include thermoplastic polyester resin, polysulfone resin, tetrafluoroethylene resin, polyetherimide resin, polyamideimide resin, polyamide resin, polyimide resin, polycarbonate resin, polyethersulfone resin, polyetherketone resin, polythioether. Ketone resin, polyphenylene sulfide resin (hereinafter P
Abbreviated as PS resin), polyetheretherketone resin,
Examples include thermoplastic polyurethane resins, ABS resins, polyamide elastomers, polyester elastomers and the like, and these may be used as a mixture of two or more kinds. Among them, thermoplastic polyester resin, polyamide resin, and P
PS resin is more preferably used, and particularly preferably PP
S resin. Further, it is also practically preferable to use a thermoplastic resin other than these polyolefin resins as a mixture depending on the required properties such as impact resistance, moldability and barrier properties.

Preferred thermoplastic polyesters include:
For example, it refers to a polyester obtained from a dicarboxylic acid such as terephthalic acid and an aliphatic diol. Examples of dicarboxylic acids other than terephthalic acid include azelaic acid, sebacic acid, adipic acid, and decanedicarboxylic acid having 2 to 2 carbon atoms.
Examples thereof include 20 aliphatic dicarboxylic acids, isophthalic acid, naphthalenedicarboxylic acid and other aromatic dicarboxylic acids, and cyclohexanedicarboxylic acid and other alicyclic dicarboxylic acids, which may be used alone or as a mixture. As the aliphatic diol, ethylene glycol,
Examples thereof include 1,2-propylene glycol, 1,3-propylene glycol, 1,4-butanediol, trimethylene glycol, 1,4-cyclohexanedimethanol and hexamethylene glycol. Specific examples thereof include polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, polyhexamethylene terephthalate, polycyclohexylene dimethylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, and the like. A copolymerized polyester comprising a dicarboxylic acid component containing butylene terephthalate or terephthalic acid in an amount of 60 mol% or more, preferably 70 mol% or more and dodecanedicarboxylic acid and / or isophthalic acid, and a 1,4-butanediol component is particularly preferably used. To be done.

The degree of polymerization of these thermoplastic polyester resins is not particularly limited, but in the case of polybutylene terephthalate and copolymerized polyester which are preferably used, it is 0.
It is preferable that the intrinsic viscosity of a 5% orthochlorophenol solution measured at 25 ° C. is in the range of 0.5 to 2.5, particularly 0.8 to 2.0. In the case of polyethylene terephthalate, add 0.5% orthochlorophenol solution to 2%.
It is preferable that the intrinsic viscosity measured at 5 ° C. is in the range of 0.54 to 1.5, particularly 0.6 to 1.2.

A preferred polyamide resin is a polyamide containing amino acids, lactams or diamines and dicarboxylic acids as main constituents. Typical examples of its main constituents include amino acids such as 6-aminocaproic acid, 11-aminoundecanoic acid, 12-aminododecanoic acid and para-aminomethylbenzoic acid, ε-caprolactam, ω.
-Lactams such as laurolactam, tetramethylenediamine, hexamerenediamine, 2-methylpentamethylenediamine, nonamethylenediamine, undecamethylenediamine, dodecamethylenediamine, 2,2,4- /
2,4,4-trimethylhexamethylenediamine, 5-
Methylnonamethylenediamine, metaxylylenediamine, paraxylylenediamine, 1,3-bis (aminomethyl) cyclohexane, 1,4-bis (aminomethyl)
Cyclohexane, 1-amino-3-aminomethyl-3,
5,5-trimethylcyclohexane, bis (4-aminocyclohexyl) methane, bis (3-methyl-4-aminocyclohexyl) methane, 2,2-bis (4-aminocyclohexyl) propane, bis (aminopropyl) piperazine, amino Aliphatic, alicyclic and aromatic diamines such as ethylpiperazine, and adipic acid, speric acid, azelaic acid, sebacic acid, dodecanedioic acid, terephthalic acid, isophthalic acid, 2-chloroterephthalic acid, 2-
Aliphatic, alicyclic and aromatic dicarboxylic acids such as methyl terephthalic acid, 5-methyl isophthalic acid, 5-sodium sulfoisophthalic acid, 2,6-naphthalenedicarboxylic acid, hexahydroterephthalic acid and hexahydroisophthalic acid are mentioned. In the present invention, nylon homopolymers or copolymers derived from these raw materials can be used alone or in the form of a mixture.

In the present invention, a particularly useful polyamide resin is a polyamide resin having a melting point of 150 ° C. or higher and excellent in heat resistance and strength, and specific examples thereof include polycaproamide (nylon 6) and polyhexamethylene. Adipamide (nylon 66), polytetramethylene adipamide (nylon 46), polyhexamethylene sebacamide (nylon 610), polyhexamethylene dodecamide (nylon 612), polyundecane amide (nylon 1)
1), polydodecanamide (nylon 12), polycaproamide / polyhexamethylene adipamide copolymer (nylon 6/66), polycaproamide / polyhexamethylene terephthalamide copolymer (nylon 6/6)
T), polyhexamethylene adipamide / polyhexamethylene terephthalamide copolymer (nylon 66/6
T), polyhexamethylene adipamide / polyhexamethylene isophthalamide copolymer (nylon 66/6
I), polyhexamethylene terephthalamide / polyhexamethylene isophthalamide copolymer (nylon 6T
/ 6/6), polyhexamethylene terephthalamide / polydodecane amide copolymer (nylon 6T / 12), polyhexamethylene adipamide / polyhexamethylene terephthalamide / polyhexamethylene isophthalamide copolymer (nylon 66 / 6T / 6I), poly Xylylene adipamide (nylon XD6), polyhexamethylene terephthalamide / poly-2-methylpentamethylene terephthalamide copolymer (nylon 6T / M5T),
Examples include polynonamethylene terephthalamide (nylon 9T) and mixtures thereof.

Particularly preferred polyamide resins are nylon 6, nylon 66, nylon 610, nylon 6/66 copolymer, nylon 6T / 66 copolymer, nylon 6T / 6I copolymer, nylon 6T.
/ 12, and copolymers having hexamethyleterephthalamide units such as nylon 6T / 6 copolymer, and these polyamide resins can be used according to the required properties such as impact resistance, moldability and compatibility. It is also suitable for practical use as a mixture.

The degree of polymerization of these polyamide resins is not particularly limited, but the relative viscosity measured at 25 ° C. in a 98% concentrated sulfuric acid solution having a sample concentration of 0.01 g / ml is 1.5.
Is preferably in the range of 2.0 to 6.0, and more preferably in the range of 2.0 to 6.0.
Polyamide resin in the range of is preferable.

A copper compound is preferably used in the polyamide resin of the present invention in order to improve long-term heat resistance. Specific examples of the copper compound, cuprous chloride, cupric chloride, cuprous bromide, cupric bromide, cuprous iodide, cupric iodide, cupric sulfate, nitric acid Cupric, copper phosphate, cuprous acetate, cupric acetate, cupric salicylate, cupric stearate, cupric benzoate and the aforementioned inorganic copper halides and xylylenediamine, 2-mercaptobenzimidazole , Benzimidazole and other complex compounds. Of these, monovalent copper compounds, especially monovalent copper halide compounds, are preferable, and cuprous acetate, cuprous iodide and the like can be exemplified as particularly preferable copper compounds. The amount of the copper compound added is usually 0.0 with respect to 100% by weight of the polyamide resin.
It is preferably 1 to 2% by weight, and further 0.015
It is preferably in the range of to 1% by weight. If the added amount is too large, metallic copper will be liberated during melt molding, and coloring will reduce the value of the product. In the present invention, it is also possible to add an alkali halide in the form of being used in combination with a copper compound. Examples of this alkali halide compound include:
Mention may be made of lithium chloride, lithium bromide, lithium iodide, potassium chloride, potassium bromide, potassium iodide, sodium bromide and sodium iodide, with potassium iodide and sodium iodide being particularly preferred.

A preferred PPS resin has the following structural formula (I)
Is a polymer having a repeating unit represented by,

[0028]

[Chemical 1]

From the viewpoint of heat resistance, the polymer containing the repeating unit represented by the above structural formula is 70 mol% or more, and further 9
A polymer containing 0 mol% or more is preferable. Further, in the PPS resin, less than about 30 mol% of the repeating unit may be composed of a repeating unit having the following structure.

[0030]

[Chemical 2]

The melt viscosity of the PPS resin used in the present invention is not particularly limited as long as it can be melt-kneaded, but is usually 5
~ 2000Pa · s (320 ° C, shear rate 1000se
c ^-1 ) is used, and the range of 10 to 500 Pa · s is more preferable.

Such PPS resin is a known method, that is, a method for obtaining a polymer having a relatively small molecular weight as described in JP-B-45-3368, or JP-B-52-12240 and JP-A-61-7332. It can be produced by the method described in the publication for obtaining a polymer having a relatively large molecular weight. In the present invention, the PPS resin obtained as described above is subjected to crosslinking / polymerization by heating in air, heat treatment in an atmosphere of an inert gas such as nitrogen or under reduced pressure, washing with an organic solvent, hot water, an aqueous acid solution, etc., It is of course possible to use it after various treatments such as activation with a functional group-containing compound such as an acid anhydride, an amine, an isocyanate, or a functional group-containing disulfide compound.

A specific method for crosslinking / polymerizing the PPS resin by heating is as follows: in an atmosphere of an oxidizing gas such as air or oxygen, or in a mixed gas of the oxidizing gas and an inert gas such as nitrogen or argon. An example is a method of heating in a heating container at a predetermined temperature in an atmosphere until a desired melt viscosity is obtained. The heat treatment temperature is usually
170-280 degreeC is selected, Preferably it is 200-27.
It is 0 ° C. The heat treatment time is usually 0.5 to 100.
The time is selected, preferably 2 to 50 hours, but by controlling both of them, the target viscosity level can be obtained. The heat treatment apparatus may be an ordinary hot air dryer or a rotary type or a heating apparatus with a stirring blade, but for efficient and more uniform treatment, a heating apparatus with a rotary type or a stirring blade should be used. Is more preferable.

A specific method for heat-treating the PPS resin in an atmosphere of an inert gas such as nitrogen or under a reduced pressure is as follows:
Heat treatment temperature 150 to 280 ° C., preferably 200 to 2
70 ° C., heating time 0.5 to 100 hours, preferably 2
A method of heat treatment for up to 50 hours can be exemplified. The heat treatment apparatus may be an ordinary hot air dryer or a rotary type or a heating apparatus with a stirring blade, but for efficient and more uniform treatment, a heating apparatus with a rotary type or a stirring blade should be used. It is more preferable to use.

The PPS resin used in the present invention is preferably a deionized PPS resin. Specific examples of such deionization treatment include acid aqueous solution washing treatment, hot water washing treatment, and organic solvent washing treatment, and these treatments may be used in combination of two or more kinds.

The following method can be exemplified as a specific method for washing the PPS resin with an organic solvent. That is,
The organic solvent used for washing is not particularly limited as long as it does not have a function of decomposing the PPS resin, but is, for example, a nitrogen-containing polar solvent such as N-methylpyrrolidone, dimethylformamide, dimethylacetamide, dimethyl sulfoxide, dimethyl. Sulfoxides such as sulfone, sulfone solvents, acetone, methyl ethyl ketone, diethyl ketone, ketone solvents such as acetophenone, dimethyl ether, dipropyl ether, ether solvents such as tetrahydrofuran, chloroform, methylene chloride,
Halogen-based solvents such as trichloroethylene, ethylene dichloride, dichloroethane, tetrachloroethane, chlorobenzene, alcohols such as methanol, ethanol, propanol, butanol, pentanol, ethylene glycol, propylene glycol, phenol, cresol, polyethylene glycol, and phenol solvents. And aromatic hydrocarbon solvents such as benzene, toluene and xylene. Among these organic solvents, it is preferable to use N-methylpyrrolidone, acetone, dimethylformamide, chloroform and the like. Further, these organic solvents are used alone or in combination of two or more. As a method of washing with an organic solvent, there is a method of immersing a PPS resin in an organic solvent, and if necessary, it is possible to appropriately stir or heat. The washing temperature when washing the PPS resin with an organic solvent is not particularly limited, and any temperature from normal temperature to 300 ° C. can be selected. The higher the cleaning temperature, the higher the cleaning efficiency tends to be. However, normally, a sufficient cleaning effect can be obtained at a cleaning temperature of room temperature to 150 ° C. The PPS resin that has been washed with an organic solvent is preferably washed several times with water or warm water in order to remove the remaining organic solvent.

The following method can be exemplified as a specific method for washing the PPS resin with hot water. That is, it is preferable that the water used is distilled water or deionized water in order to exert the effect of preferable chemical modification of the PPS resin by washing with hot water. The operation of hot water treatment is usually carried out by adding a predetermined amount of PPS resin to a predetermined amount of water and heating and stirring at normal pressure or in a pressure vessel. PPS
The ratio of resin to water is preferably as much as possible, but usually a bath ratio of 200 g or less of PPS resin to 1 liter of water is selected.

The following method can be exemplified as a specific method for treating the PPS resin with an acid. That is, there is a method of immersing the PPS resin in an acid or an aqueous solution of the acid, and it is also possible to appropriately stir or heat as necessary. The acid used is not particularly limited as long as it has no action of decomposing the PPS resin, and aliphatic saturated monocarboxylic acids such as formic acid, acetic acid, propionic acid and butyric acid, and halo-substituted aliphatic compounds such as chloroacetic acid and dichloroacetic acid. Saturated carboxylic acids, aliphatic unsaturated monocarboxylic acids such as acrylic acid and crotonic acid, aromatic carboxylic acids such as benzoic acid and salicylic acid, dicarboxylic acids such as oxalic acid, malonic acid, succinic acid, phthalic acid and fumaric acid, and sulfuric acid. , Inorganic acid compounds such as phosphoric acid, hydrochloric acid, carbonic acid and silicic acid. Of these, acetic acid and hydrochloric acid are more preferably used. The acid-treated PPS resin is preferably washed several times with water or warm water in order to remove residual acid or salt. Further, the water used for washing is preferably distilled water or deionized water in the sense that the effect of preferable chemical modification of the PPS resin by acid treatment is not impaired.

As the compatibility improver (c) used in the present invention, an acid-modified polyolefin or ethylene / unsaturated carboxylic acid obtained by introducing unsaturated dicarboxylic acid anhydride by grafting treatment with a radical initiator is introduced. Examples thereof include a copolymer and an epoxy group-containing olefin-based copolymer having a glycidyl ester of an α, β-unsaturated acid as a main constituent, and two or more of them can be used simultaneously.

Examples of the unsaturated dicarboxylic acid anhydride used in the acid-modified polyolefin include maleic anhydride, itaconic anhydride, citraconic anhydride and the like, and maleic anhydride is particularly preferable. The unsaturated carboxylic acid used in the ethylene / unsaturated carboxylic acid copolymer may be acrylic acid, methacrylic acid, or a mixture thereof, and may partially contain unsaturated carboxylic acid ester.

In the present invention, the compounding amount of the compatibility improver is 0.5 to 60% by weight based on 100% by weight of the resin composition comprising (a) a polyolefin resin and (b) a thermoplastic resin other than the polyolefin resin. It is preferable. More preferably 1 to 50% by weight, particularly preferably 1
-40% by weight. When the amount of the compatibility improver is less than 0.5% by weight, sufficient compatibility cannot be obtained and toughness is deteriorated, which is not preferable. If the blending amount exceeds 60% by weight, the fluidity is remarkably reduced and the moldability is deteriorated, which is not preferable.

The interface thickness in the present invention is the thickness of the region where both components coexist at the boundary between (a) the polyolefin resin phase and (b) the thermoplastic resin phase other than the polyolefin resin. Although not particularly limited, for example, it can be directly measured by observing with a transmission electron microscope after dyeing a polyolefin resin with ruthenium tetroxide. This interface thickness is 20-100
It must be nm. The more preferable lower limit of the interface thickness is 25 nm, and particularly preferably 30 nm. If the interface thickness is less than 20 nm, the interfacial strength between the phases becomes weak, and it becomes difficult to develop the toughness that is a characteristic of the resin structure of the present invention, and the object of the present invention cannot be achieved. On the other hand, the more preferable upper limit of the interface thickness is 90 nm.
And more preferably 80 nm. When the interface thickness exceeds 100 nm, the fluidity is remarkably reduced and the moldability is deteriorated, which is not preferable.

As a method for controlling the interface thickness in the resin structure of the present invention, there is no particular limitation such as a method of increasing the blending amount of the compatibility improver. However, when the blending amount is increased, the compatibility is improved. The agent is unevenly distributed in the resin component having a high affinity, and it is not possible to obtain sufficient compatibility corresponding to the added amount and the interface thickness cannot be increased. On the other hand, if the amount of the compatibility improver is increased too much, the interfacial thickness will be increased, but the fluidity will be lowered and the moldability will be deteriorated. As in the present invention, the compatibility improver is melt-kneaded with a resin component having a low affinity in advance, and then the resin kneaded product is melt-kneaded with the other resin component, whereby the compatibility improver can work efficiently. Therefore, the interface thickness can be controlled appropriately.

The phase structure (morphology) of the resin structure in the present invention is (a) a polyolefin resin (a) a dispersed phase (b) a phase structure in which a thermoplastic resin component other than the polyolefin resin forms a continuous phase, (a) a polyolefin resin Is a continuous phase (b) a phase structure in which a thermoplastic resin component other than the polyolefin resin is a dispersed phase, and (a) a polyolefin resin and (b) a thermoplastic resin other than the polyolefin resin together form a continuous phase. Of these, any phase structure may be formed. Further, a plurality of phase structures may coexist in various places of the resin structure. This phase structure is observed and confirmed using a scanning electron microscope and a transmission electron microscope.

In the resin structure of the present invention, the blending ratio of the polyolefin resin as the component (a) and the thermoplastic resin other than the polyolefin resin as the component (b) is 20 to 80% by weight of the polyolefin resin, and the thermoplastic resin other than the polyolefin resin. It is 80 to 20% by weight. The polyolefin resin is preferably 25 to 75% by weight, and the thermoplastic resin other than the polyolefin resin is 75 to 25% by weight. More preferably, the polyolefin resin is 30 to 70% by weight, and the thermoplastic resin other than the polyolefin resin is 70 to 30% by weight. When the content of the polyolefin resin as the component (a) exceeds 80% by weight, it becomes difficult to exhibit the high barrier property which is a feature of the resin molded product of the present invention, and the object of the present invention cannot be achieved. Further, if the content of the polyolefin resin as the component (a) is less than 20% by weight, the toughness of the resin molded body is deteriorated, which is not preferable.

An inorganic filler can be used in the resin structure of the present invention in order to impart mechanical strength, rigidity and barrier properties, and the material is not particularly limited, but may be fibrous. Fillers in the form of plate, powder or granules can be used. Specifically, for example, fibrous fillers such as glass fibers, carbon fibers, potassium whisker titanate, zinc oxide whiskers, alumina fibers, silicon carbide fibers, ceramic fibers, asbestos fibers, gypsum fibers, and metal fibers, wollastonite, and seri Site, kaolin, mica, clay,
Bentonite, asbestos, talc, silicates such as alumina silicate, swelling layered silicates such as montmorillonite, synthetic mica, alumina, silicon oxide, metal compounds such as magnesium oxide, zirconium oxide, titanium oxide, iron oxide, calcium carbonate, Non-fibrous fillers such as magnesium carbonate, carbonates such as dolomite, calcium sulfate, sulfates such as barium sulfate, glass beads, ceramic beads, boron nitride, silicon carbide, calcium phosphate and silica, and the like. May be hollow, and it is also possible to use two or more of these fillers in combination.

Inorganic onium ions may be used as the inorganic filler in coupling agents such as isocyanate compounds, organic silane compounds, organic titanate compounds, organic borane compounds, and epoxy compounds, and swelling layered silicates. Preliminary treatment is preferable in terms of obtaining better mechanical strength and barrier properties.

The content of the above-mentioned inorganic filler is 0.1 to 2 with respect to 100% by weight of the total amount of (a) the polyolefin resin and (b) the thermoplastic resin other than the polyolefin resin.
It is preferably 00% by weight. More preferably 0.
It is 5 to 200% by weight, particularly preferably 1 to 150% by weight.

In the resin structure of the present invention, a conductive filler and / or a conductive polymer can be used for imparting conductivity, and the material is not particularly limited, but the conductivity is not limited. The filler is not particularly limited as long as it is a conductive filler that is usually used for making a resin conductive, and specific examples thereof include a metal powder, a metal flake, a metal ribbon, a metal fiber, a metal oxide, and a conductive substance. Other examples include inorganic fillers, carbon powder, graphite, carbon fibers, carbon flakes, and scale-like carbon.

Specific examples of the metal species of the metal powder, the metal flakes and the metal ribbon include silver, nickel, copper, zinc, aluminum, stainless steel, iron, brass, chromium and tin.

Specific examples of the metal species of the metal fiber include iron,
Examples include copper, stainless steel, aluminum, brass and the like.

The metal powder, metal flakes, metal ribbons, and metal fibers may be surface-treated with a surface treatment agent such as titanate-based, aluminum-based, or silane-based.

Specific examples of metal oxides include SnO ₂ (antimony-doped), In ₂ O ₃ (antimony-doped), and Z.
Examples thereof include nO (aluminum dope), and these may be surface-treated with a surface treatment agent such as a titanate-based, aluminum-based or silane-based coupling agent.

Inorganic filler coated with conductive material
Examples of conductive materials include aluminum and nickel
Le, silver, carbon, SnO₂(Antimony dope), I
n₂O ₃(Antimony dope) etc. can be illustrated. In addition,
As the inorganic filler to be covered, mica and glass beads
, Glass fiber, carbon fiber, potassium titanate whisker
ー, barium sulfate, zinc oxide, titanium oxide, al borate
Minium whiskers, zinc oxide whiskers, titanium oxide
Examples include acid-based whiskers and silicon carbide whiskers.
It As a coating method, a vacuum deposition method, a sputtering method,
An electroless plating method, a baking method, etc. may be mentioned. See you
These are titanate, aluminum, and silane couplings.
It may be surface-treated with a surface-treating agent such as an agent.

The carbon powder is classified into acetylene black, gas black, oil black, naphthalene black, thermal black, furnace black, lamp black, channel black, roll black, disc black and the like according to its raw material and manufacturing method. The carbon powder that can be used in the present invention is not particularly limited in its raw material and manufacturing method, but acetylene black and furnace black are particularly preferably used. As the carbon powder, various carbon powders having different characteristics such as particle size, surface area, DBP oil absorption amount, and ash content are manufactured. The carbon powder that can be used in the present invention is not particularly limited in these characteristics, but from the viewpoint of the balance of strength and electric conductivity, the average particle diameter is 500 nm or less, particularly 5 to 100 nm,
Furthermore, 10-70 nm is preferable. The specific surface area (BE
The T method) is preferably 10 m2 / g or more, more preferably 30 m2 / g or more. The DBP oil supply amount is preferably 50 ml / 100 g or more, and particularly preferably 100 ml / 100 g or more. The ash content is preferably 0.5% by weight or less, particularly preferably 0.3% by weight or less.

The carbon powder may be surface-treated with a surface treatment agent such as titanate type, aluminum type, silane type. It is also possible to use a granulated product in order to improve the workability of melt-kneading.

The resin structure of the present invention is often required to have a smooth surface. From such a viewpoint, the conductive filler used in the present invention, like the inorganic filler (c) used in the present invention, is more powdery, granular, plate-like, or scaly than the fibrous filler having a high aspect ratio, or The length / diameter ratio in the resin structure is preferably 200 or less in the fibrous form.

Specific examples of the conductive polymer include polyaniline, polypyrrole, polyacetylene, poly (paraphenylene), polythiophene and polyphenylene vinylene.

The conductive filler and / or the conductive polymer may be used in combination of two or more kinds. Among these conductive fillers and conductive polymers, carbon black is particularly preferably used in terms of strength and economy.

The content of the conductive filler and / or the conductive polymer used in the present invention varies depending on the type of the conductive filler and / or the conductive polymer used, and therefore cannot be specified unconditionally, but the conductivity and the fluidity From the viewpoint of balance with mechanical strength, etc., the range of 1 to 250% by weight, preferably 3 to 100% by weight is preferably selected based on 100% by weight of the total of the components (a) and (b).
Moreover, it is more preferable that the total of the components (a) and (b) is 1
The range of 3 to 100% by weight with respect to 00% by weight is preferably selected for imparting a conductive function.

When conductivity is imparted, the volume resistivity is 10 ¹⁰ Ω · c in order to obtain sufficient antistatic performance.
It is preferably m or less. However, the blending of the conductive filler and the conductive polymer generally tends to cause deterioration of strength and fluidity. Therefore, if the target conductivity level can be obtained, it is desirable that the blending amounts of the conductive filler and the conductive polymer be as small as possible. The target conductivity level depends on the application, but the volume resistivity is usually 100Ω.
・ The range is more than 10 cm and 10 ¹⁰ Ω · cm or less.

In the structure of the present invention, other components such as antioxidants and heat stabilizers (hindered phenol-based, hydroquinone-based, phosphite-based and substitution products thereof, etc.) are used as long as the effects of the present invention are not impaired. ), Weathering agents (resorcinol-based, salicylate-based, benzotriazole-based, benzophenone-based, hindered amine-based, etc.), release agents and lubricants (montanic acid and its metal salts, their esters, their half esters, stearyl alcohol, stearamide, various bisamides) , Bisurea and polyethylene wax), pigments (cadmium sulfide, phthalocyanine, carbon black, etc.), dyes (nigrosine, etc.),
Crystal nucleating agents (talc, silica, kaolin, clay, etc.), plasticizers (octyl p-oxybenzoate, N-butylbenzenesulfonamide, etc.), antistatic agents (alkyl sulfate type anionic antistatic agents, quaternary ammonium salts) Type cationic antistatic agents, nonionic antistatic agents such as polyoxyethylene sorbitan monostearate, betaine amphoteric antistatic agents, etc., flame retardants (eg red phosphorus, melamine cyanurate, magnesium hydroxide, water) Hydroxides such as aluminum oxide, ammonium polyphosphate, brominated polystyrene, brominated polyphenylene ether, brominated polycarbonate, brominated epoxy resins or combinations of these brominated flame retardants with antimony trioxide), other polymers Can be added.

As a method for obtaining the resin structure of the present invention,
If the resin structure having the interface thickness required by the present invention is obtained, there is no particular limitation, and the method is not limited to the following method, but a compatibilizing agent and a thermoplastic resin other than polyolefin are pre-kneaded. A method of melt-kneading with a polyolefin later is preferable because the interface thickness can be efficiently controlled. For example, when melt-kneading with a twin-screw extruder, a compatibility improver with a thermoplastic resin other than the polyolefin resin from the main feeder is used. And a method of supplying the polyolefin resin from the side feeder of the tip portion of the extruder or a method of melt-kneading the thermoplastic resin and the compatibility improver other than the polyolefin resin in advance and then melt-kneading with the polyolefin resin. To be

The resin structure of the present invention has various shapes, and in particular, the molding method for obtaining a melt-molded product is as follows.
Known methods (injection molding, extrusion molding, blow molding, press molding, etc.) can be adopted. In addition, the molding temperature is usually selected from the temperature range of 5 to 50 ° C. higher than the melting point of the thermoplastic resin other than the polyolefin resin, and in general, although it is a single layer, it is a two-color injection molding method or coextrusion molding. A multilayer structure may be formed by a method such as a method.

Here, the multilayer structure means a structure having at least one layer of the resin structure of the present invention. The arrangement of each layer is not particularly limited, and all layers may be formed of the resin structure of the present invention, or other layers may be formed of other thermoplastic resin.

Such a multilayer structure can be produced by a two-color injection molding method or the like, but when it is obtained as a film or a sheet, the composition forming each layer is melted by a separate extruder. After that, it can be produced by a method of supplying to a die having a multi-layer structure and coextrusion molding, a so-called laminate molding method of melt-extruding the resin structure layer of the present invention after molding other layers in advance. However, when the shape of the laminated structure is a hollow container such as a bottle, a barrel, or a tank, or a tubular body such as a pipe or a tube, a general coextrusion molding method can be adopted. In the case of a two-layer hollow molded article in which the resin structure layer and the outer layer are formed of other resin layers, the resin structure composition and the other resin structure are separately supplied to two extruders, Two kinds of molten resin are pressure-supplied in a common die to After forming a uniform flow, the resin structure layer is merged on the inner layer side, the other resin layers are merged on the outer layer side, and then coextruded outside the die, and a commonly known tube molding method or blow molding method is used. A two-layer hollow molded article can be obtained by carrying out the following. Further, in the case of a three-layer hollow molded body, three extruders are used and the same method as described above is used.
It is also possible to obtain a hollow molded product having a layered structure or a two-kind three-layered structure using two extruders. Among these methods, it is preferable to use the coextrusion molding method from the viewpoint of interlayer adhesion.

Examples of the thermoplastic resin used as the other layer include saturated polyester, polysulfone, tetrafluoroethylene, polyetherimide, polyamideimide, polyamide, polyketone copolymer, polyphenylene ether, polyimide, polyethersulfone, polyether. Ketone, polythioether ketone, polyether ether ketone, thermoplastic polyurethane, polyolefin, A
Examples thereof include BS, polyamide elastomer, and polyester elastomer, and they can be used as a mixture thereof or by adding various additives.

The resin structure of the present invention can be preferably used as a container used for transporting a chemical liquid and / or gas or storing a chemical liquid and / or gas by utilizing its excellent barrier property, durability and molding processability. Examples of the chemical liquid or gas include Freon-11, Freon-12, Freon-21, Freon-22, Freon-113, Freon-
114, CFC-115, CFC-134a, CFC-
32, Freon-123, Freon-124, Freon-12
5, Freon-143a, Freon-141b, Freon-1
42b, Freon-225, Freon-C318, R-50
2,1,1,1-Trichloroethane, methyl chloride, methylene chloride, ethyl chloride, methyl chloroform, propane, isobutane, n-butane, dimethyl ether, castor oil-based brake fluid, glycol ether brake fluid, borate ester brake fluid , Brake fluid for cold regions, silicone oil type brake fluid, mineral oil type brake fluid, power steering oil, window washer fluid, gasoline, methanol, ethanol, isoptanol, butanol, nitrogen, oxygen, hydrogen, carbon dioxide, methane, propane, Since natural gas, argon, helium, xenon, gas and / or liquid such as pharmaceutical agents and / or permeation resistance of vaporized gas is excellent, for example, including a permeation resistant film of the gas and / or liquid, Airbag, shampoo, Bottles for various chemicals such as liquids, liquid soaps, detergents, tanks for storing chemical solutions, tanks for storing gas, cooling fluid tanks, tanks for oil transfer, antiseptic solutions, tanks for blood transfusion pumps, fuel tanks, canisters, washer liquids. Used for automobile parts such as tanks and oil reservoir tanks, parts for medical equipment. Furthermore, the resin structure of the present invention can be used as an accessory to these containers. Tanks as general household appliance parts, bottle-shaped molded products or those tanks, cutoff valves attached to bottles, valves and fittings such as ORVR valves, accessories such as gauges for pumps, parts such as cases, fuel filler under pipes, For connecting various fuel tubes (connectors, etc.) such as ORVR hoses, reserve hoses, vent hoses, connecting parts for oil tubes, connecting parts for brake hoses, nozzles for window washer fluid, cooler hoses for cooling water, refrigerant, etc. Parts, connecting parts for air conditioner refrigerant tubes, connecting parts for floor heating pipes,
Hoses for fire extinguishers and fire extinguishing equipment, connecting parts and valves for tubes for medical cooling equipment, other tube applications for chemical solutions and gas conveyance, applications such as chemical storage containers that require chemical solution and gas permeation resistance, In addition to mechanical parts such as automobile parts, internal combustion engine applications, electric tool housings, etc., various applications such as electric / electronic parts, medical care, food, household / office supplies, building material-related parts, furniture parts, etc. can be mentioned.

[0069]

The present invention will be described in detail below with reference to examples, but the gist of the present invention is not limited to the following examples. (1) Alcohol Gasoline Permeability Permeability of a 40 mm diameter extruder with a die for forming a tube, a sizing die for cooling the tube to control the dimensions,
A tube having an outer diameter of 8 mm and an inner diameter of 6 mm was molded by using a tube and a take-up machine. 20c the tube
Cut into m length, seal one end of the tube, and put model gasoline (toluene // isooctane = 50 // 50) inside
6% of an alcohol gasoline mixture obtained by mixing 90% by volume of ethanol and 90% by weight of ethanol was precisely weighed and charged inside, and the remaining end was also sealed. Then, the whole weight was measured, the test tube was put in an explosion-proof oven at 40 ° C., treated for 500 hours, and the weight reduced was measured. (2) Oxygen permeability According to JIS K7126 A method (differential pressure method), "GTR
-10 "(manufactured by Yanako Analytical Industry Co., Ltd.) (3) High-speed surface impact test Square plate molded piece prepared by injection molding (thickness: 1 m)
m) was adjusted. The surface impact test value of this molded piece is "Sur
BoPulser ”(manufactured by Shimadzu Corporation) for speed 2.
It was measured at 5 m / s and 23 ° C. (4) Melt Viscosity A melt viscosity (Pa · s) at a shear rate of 1000 sec ⁻¹ at a temperature of 300 ° C. was measured using a plunger type capillary rheometer (“Capirograph” type 1C manufactured by Toyo Seiki Seisaku-sho, Ltd.). . (5) Material Strength It was measured according to the following standard method. Tensile strength: ASTM D638 Flexural modulus: ASTM D790 (6) Observation and measurement of interface thickness After trimming for observation of electron microscope of ASTM No. 1 test piece, observation sample obtained by staining with ruthenium tetroxide is a transmission electron microscope. Observation was performed using (TEM), and the thickness of the interface portion in the obtained micrograph was measured.

The polyolefin resins and thermoplastic resins other than the polyolefin resins used in the examples and comparative examples are as follows. Unless otherwise specified, all were polymerized and prepared according to a conventional method. <Polyolefin resin: PO> (PO-1): MFR 0.04 g / 10 minutes, density 0.9
56 high density polyethylene. (PO-2): MFR 6 g / 10 min, high density polyethylene with a density of 0.956. <Thermoplastic resin other than polyolefin resin> (PPS-1): melting point 280 ° C., MFR 100 g / 10
Min, Mw 70000, 3100 Pa · s (300 ° C., shear rate 200 sec ⁻¹ ) PPS resin. (PPS-2): melting point 280 ° C., MFR 600 g / 10
Min, Mw 38000, 900 Pa · s (300 ° C., shear rate 200 sec ⁻¹ ) PPS resin. (PA): Nylon 6 resin having a melting point of 225 ° C. and a relative viscosity of 2.35. (PBT): Polybutylene terephthalate resin having a melting point of 224 ° C. and an intrinsic viscosity of 0.89 (o-chlorophenol, 25 ° C.). <Compatibility improver: CO> (CO-1): MFR 3 g / 10 min, ethylene / glycidyl methacrylate = 94/6 (wt%) copolymer. (CO-2): MFR 6 g / 10 min, high density polyethylene 100% by weight with density 0.956, maleic anhydride 1
Parts, 2,5-dimethyl-2,5-di (tert-butylperoxy) hexane (0.1 part), and modified polyethylene obtained by melt extrusion at a cylinder temperature of 230 ° C. using a twin-screw extruder.

Examples 1 to 7 Compatibilizers and thermoplastic resins other than polyolefin were added at the compounding ratio shown in the first step in Table 1 to TEX3 manufactured by Japan Steel Works.
Supply from the feeder of 0 type twin screw extruder, kneading temperature 250
Melt kneading was performed at ˜300 ° C. and a screw rotation speed of 200 rpm. Subsequently, the resin kneaded product thus obtained, the polyolefin resin, and the remaining blended content of the thermoplastic resin other than the polyolefin are mixed with a TEX30 twin-screw extruder manufactured by Japan Steel Works Co., Ltd. at a kneading temperature of 250 to 300 ° C. and a screw rotation speed of 20.
Melt kneading was performed at 0 rpm. After the obtained pellets were dried, a test piece was prepared by injection molding (IS100FA manufactured by Toshiba Machine Co., Ltd., cylinder temperature 250 to 300 ° C., mold temperature 80 ° C.). The results of measuring the barrier property, high-speed surface impact test, material strength, etc. of each sample are shown in Table 1.

Comparative Examples 1 to 4 A polyolefin resin, a compatibilizer and a thermoplastic resin other than polyolefin were supplied at a compounding ratio shown in Table 1 from a feeder of a TEX30 twin-screw extruder manufactured by Japan Steel Works,
Kneading temperature 250-300 ° C, screw rotation speed 200r
Melt kneading was performed at pm. The pellets obtained are dried,
A test piece was prepared by injection molding (IS100FA manufactured by Toshiba Machine Co., Ltd., cylinder temperature 250 to 300 ° C., mold temperature 80 ° C.). The barrier properties, high-speed surface impact test and material strength of each sample were measured in the same manner as in the examples.

Comparative Example 5 A test piece was prepared by injection molding PO-1 (IS100FA manufactured by Toshiba Machine Co., Ltd., cylinder temperature 230 ° C., mold temperature 80 ° C.). Barrier properties, high-speed surface impact test and material strength were measured in the same manner as in the examples.

[0074]

[Table 1]

The resin structures of the present invention having a specific interface thickness from Examples 1 to 7 and Comparative Examples 1 to 5 have barrier properties,
It is highly practical and has excellent impact properties.

[0076]

INDUSTRIAL APPLICABILITY The resin structure of the present invention has good barrier properties and moldability, and can be applied to various applications.
For example, it is suitable for electric / electronic-related equipment, precision machinery-related equipment, office equipment, automobile / vehicle-related parts, building materials, packaging materials, furniture, daily sundries, and the like.

Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) C08L 67/00 C08L 67/00 77/00 77/00 81/02 81/02 101/00 101/00 F-term (reference) ) 3E067 AA02 AA03 AB96 BA03A BB14A BB15A BB22A CA04 CA07 CA16 FA01 FC01 3E086 AD04 BA04 BA15 BA35 BB01 BB71 BB71 BB71 CLX BB85 CA29 CAB BB07A05 ABB07A05 ABB02B05A05 ABB02A05A05B05A05A05B05A05B05A05B05A05B05A05B05A05B05A05 GG00

Claims (7)

[Claims] 1. A compatibility improver (c) 0 to 100% by weight of a resin composition comprising (a) 20 to 80% by weight of a polyolefin resin and (b) 80 to 20% by weight of a thermoplastic resin other than the polyolefin resin. 1 to 60% by weight of a resin composition object, and a molded article made of the resin composition is observed with an electron microscope (a) a polyolefin resin phase and (b) heat other than the polyolefin resin. A resin structure, wherein the thickness of the interface phase of the plastic resin phase is 20 to 100 nm. 2. The resin according to claim 1, wherein the thermoplastic resin (b) other than the polyolefin resin is at least one selected from thermoplastic polyester resins, polyamide resins, and polyphenylene sulfide resins. Structure. 3. The resin structure according to claim 1 or 2, wherein the thermoplastic resin (b) other than the polyolefin resin is a polyphenylene sulfide resin. 4. The resin structure according to claim 1, wherein (a) the polyolefin resin is polyethylene. 5. The polyolefin resin (a) has a specific gravity of 0.
It is high density polyethylene of 95 or more, The resin structure in any one of Claims 1-4 characterized by the above-mentioned. 6. The method according to claim 6, wherein (c) the compatibility improver and (b) the thermoplastic resin other than the polyolefin resin are wholly or partially melt-kneaded, and then (a) the polyolefin resin is melt-kneaded. The resin structure according to any one of 1 to 5. 7. The resin structure according to claim 1, wherein the resin structure is a container for transporting or storing a chemical solution and / or gas.