Abstract: An object of the present invention is to provide a porous sheet capable of satisfy both the properties of fitting, preventing tightening, and providing comfort immediately after wearing or at a standstill/at rest and the properties of tightening, fixation stability, and providing comfort during exercise such as sports at the same time, as well as a porous composite comprising the porous sheet, or particularly, a porous sheet and a porous composite for clothing, health products, medical supplies, and sporting goods. The present invention relates to a porous sheet made of a thermoplastic elastomer composition (A), having a plurality of slits and/or pores, and having a porosity of 5 to 50%, an anisotropy of 10% or more, and a stretching stress relaxation rate of 40% or less after being stretched by 500% and held for 60 seconds.

Abstract: An object of the present invention is to provide a porous sheet capable of satisfy both the properties of fitting, preventing tightening, and providing comfort immediately after wearing or at a standstill/at rest and the properties of tightening, fixation stability, and providing comfort during exercise such as sports at the same time, as well as a porous composite comprising the porous sheet, or particularly, a porous sheet and a porous composite for clothing, health products, medical supplies, and sporting goods. The present invention relates to a porous sheet made of a thermoplastic elastomer composition (A), having a plurality of slits and/or pores, and having a porosity of 5 to 50%, an anisotropy of 10% or more, and a stretching stress relaxation rate of 40% or less after being stretched by 500% and held for 60 seconds.

Abstract: Disclosed herein is a fuel tank of multi-layer construction having good impact resistance as well as good barrier properties for gasoline, especially one containing methanol and MTBE. The fuel tank comprises (a) inner and outer layers of high-density polyethylene, (b) intermediate layers of adhesive resin, and (c) a core layer of ethylene-vinylalcohol copolymer, with said core layer (c) being shifted to the inside. For better performance, the layer (c) has a thickness which satisfies the formula below. 0.005≦A/B≦0.13  (1) where A is the thickness of the layer (c), and B is the thickness of all the layers. The fuel tank is suitable especially for oxygen-containing gasoline.

Abstract: A purging agent which contains an ethylene-vinyl alcohol copolymer and which satisfies the conditions specified by the equations (1) and (2) below:

Abstract: A purging agent which contains an ethylene-vinyl alcohol copolymer and which satisfies the conditions specified by the equations (1) and (2) below: 20≧BT(120)≧0.1  (1) 500≧BT(250)/BT(120)≧1.5  (2), where BT(120) is weight loss (%) on heating in nitrogen at 120° C. for 24 hours, and BT(250) is weight loss (%) on heating in nitrogen at 250° C. for 6 hours, rapidly discharges residual thermoplastic resin containing EVOH from molding equipment, and also rapidly discharges itself when a fresh resin is fed again to the equipment. This leads to a remarkable reduction in loss due to residual purging agent. In addition, the purging agent causes only a small amount of resin to stick to the equipment, even after repeated purging. After purging, it is possible to restore normal operation within a short period of time.

Abstract: A resin composition comprises a polyolefin (A), a saponified product (B) of an ethylene-vinyl ester copolymer having an ethylene content of from 10 to 70 mole % and a saponification degree of the vinyl ester component of not less than 80%, and an olefin-unsaturated dicarboxylic anhydride-unsaturated carboxylic ester or vinyl ester copolymer (C), wherein the following formulas (I) and (II) are satisfied 1/99≦weight of (B)/weight of (A)≦40/60  (I) 0.1/99.9≦X≦20/80  (II) wherein X=weight of (C)/total weight of (A) and (B). A multilayered structure comprising at least a layer of the above resin composition and a layer made of a saponified product of an ethylene-vinyl ester copolymer.

Abstract: Disclosed herein is a fuel tank of multi-layer construction having good impact resistance as well as good barrier properties for gasoline, especially one containing methanol and MTBE.The fuel tank comprises (a) inner and outer layers of high-density polyethylene, (b) intermediate layers of adhesive resin, and (c) a core layer of ethylene-vinylalcohol copolymer, with said core layer (c) being shifted to the inside. For better performance, the layer (c) has a thickness which satisfies the formula below.0.005.ltoreq.A/B.ltoreq.0.13 (1)where A is the thickness of the layer (c), andB is the thickness of all the layers.The fuel tank is suitable especially for oxygen-containing gasoline.

Abstract: Provided are resin compositions comprising the following (A), (B), (C), which is at least one member selected from (C.sub.1) through (C.sub.3) and (D):(A): a polyolefin,(B): a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%,(C): (C.sub.1): at least one inorganic substance selected from titanium oxide, talc, calcium carbonate, mica and absorptive inorganic materials,(C.sub.2): at least one compound selected from the group consisting of metal salts of higher fatty acid having 8 to 22 carbon atoms, metal salts of ethylenediaminetetraacetic acid and hydrotalcite, and(C.sub.3): a polyolefin modified with an unsaturated carboxylic acid or derivatives thereof;and,(D): a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 68 to 98 mol % and a saponification degree of vinyl acetate component of at least 20%.

Abstract: Provided are resin compositions comprising the following (A), (B), (C), which is at least one member selected from (C.sub.1) through (C.sub.3), and (D):(A): a polyolefin,(B): a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%,(C):(C.sub.1): at least one inorganic substance selected from titanium oxide, talc, calcium carbonate, mica and absorptive inorganic materials,(C.sub.2): at least one compound selected from the group consisting of metal salts of higher fatty acid having 8 to 22 carbon atoms, metal salts of ethylenediaminetetraacetic acid and hydrotalcite, and(C.sub.3): a polyolefin modified with an unsaturated carboxylic acid or derivatives thereof;and,(D): a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 68 to 98 mol % and a saponification degree of vinyl acetate-component of at least 20%.

Abstract: A resin composition comprising 5 to 95 parts by weight of a saponified product of an ethylene-vinyl acetate copolymer (A) having an ethylene content of 20 to 60 mol % and a degree of saponification of at least 90% and 95 to 5 parts by weight of a styrene-based polymer (B) having mainly syndiotactic configuration. The resin composition has gas barrier properties and a markedly improved heat resistance.

Abstract: A heat shrinkable film or multilayered film comprising at least one layer comprising an EVOH (A) having an average ethylene content of 20 to 60 mol % and an areal shrinkage when immersed in hot water at 90.degree. C. for 1 minute of at least 10% and having thermal characteristics satisfying the following condition (i)1.ltoreq..vertline.{T(1)-T(2)}-{t(1)-t(2)}.vertline..ltoreq.20 (i)wherein 1.ltoreq..vertline.t(1)-T(1).vertline..ltoreq.20 in the case of T(1)=T(2) and t(1)=t(2) andwherein T(1) and T(2) represent peak temperature (.degree.C.) on the highest temperature side and lowest temperature side respectively in differential scanning calorimetry (DSC) measurement of said EVOH (A) and t(1) and t(2) peak temperatures originating from T(1) and T(2), respectively, in DSC measurement of said EVOH having been treated with an alkaline solvent.

Abstract: A multilayered container comprising an intermediate layer of a resin composition (A) which comprises 50-95% by weight of a specific EVOH, and 50-5% by weight of an inorganic filler, and inner and outer layers of a moisture resistant thermoplastic resin (B), at least the body wall part of the container comprising multiplicity of regions in which substantially 2-dimensional thin layers of the inorganic filler extend parallel with the wall surface and laminated with each other, said layer of said resin composition (A) having a specific moisture permeability.The multilayered container can readily be prepared by thermoforming from the corresponding multilayered structure.

Abstract: Provided are multilayered structures comprising at least 2 layers of a layer which comprises a resin composition comprising:(A) a thermoplastic resin,(B) a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%, and(C) a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 68 to 98 mol % and a saponification degree of vinyl acetate component of at least 20%, anda layer which comprises a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%.These multilayered structures have excellent gas barrier properties and resistance to intralayer delamination, and the resin composition layer thereof has neat appearance.

Abstract: A multi-layer material with a layer (A) of a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 60 mol % and a degree of saponification of at least 90% and a layer (B) of a styrene-based polymer having mainly syndiotactic configuration, or a resin composition comprising 5 to 95 parts by weight of a saponified product of an ethylene-vinyl acetate copolymer (A) having an ethylene content of 20 to 60 mol % and a degreee of saponification of at least 90% and 95 to 5 parts by weight of a styrene-based polymer (B) having mainly syndiotactic configuration has gas barrier properties and markedly improved heat resistance.In a molding comprising the resin composition or the multi-layer material, contents (food) can be stored for a long period of time at ambient temperature. Moreover, after retort sterilization, the container can be heated by boiling, or in a microwave oven or a grill oven (at 220 to 240.degree. C.

Abstract: A hot drawn multilayered structure including a layer of an ethylene-vinyl alcohol copolymer composition containing 70 to 95 wt % of EVOH having an ethylene content of 25 to 60 mol % and a saponification degree of at least 90%; and 5 to 30 wt % of an aliphatic copolymer polyamide containing capramide as a main structural unit, having a ratio of the number of methylene gorups to the number of amide groups satisfying the equation:6.6.ltoreq.CH.sub.2 /NHCO.ltoreq.10having a melting point of 110.degree. to 180.degree. C. and exhibiting a melt index of 0.1 to 10 g/10 mins.; having a thermoplastic resin layer on at least one surface of said layer. The multilayered structure has excellent gas barrier properties and minimized variability in gas barrier properties measured in different areas and minimal gel, hard spots, etc.

Abstract: Provided are multilayered structures comprising at least 2 layers consisting of a layer of a composition (C) comprising 50 to 95 wt % of an ethylene-vinyl alcohol copolymer (A) and 50 to 5 wt % of a thermoplastic polyester (B) comprising at least 50 mol % of isophthalic acid base on the total moles of carboxylic acid component and 0.1 to 30 mol % of 1,3-bis (.beta.-hydroxyethoxy)benzene and/or diethylene glycol based on the total moles of diol component, and a layer of a thermoplastic resin (D), said (A) and (D) satisfying the following relationship (I):110.degree. C..gtoreq.X.sub.A -X.sub.D .gtoreq.0.degree. C. (I)wherein X.sub.A represents the melting point of A and X.sub.D represents the melting point or, in the case of no melting point, the softening temperature, of D.

Abstract: The present invention provides a heat-resistant container comprising an ethylene-vinyl alcohol copolymer layer and a crystalline polyester layer. In particular, when an ethylene-vinyl alcohol copolymer containing a drying agent is used, the obtained container is both ovenable and retortable, thereby being highly useful.

Abstract: A resin composition comprising from about 95 to about 30 parts by weight of a saponified product of an ethylene-vinyl acetate copolymer (A), comprising ethylene units in an amount of from about 20 to about 55 mole percent, and exhibiting a degree of saponification of the vinyl acetate component of at least about 90 mole percent, and from about 5 to about 70 parts by weight of a saponified product of a modified ethylene-vinyl acetate copolymer (B) comprising pyrrolidone ring-containing units in an amount of from about 0.1 to about 10 mole percent, and ethylene units in an amount of from about 20 to about 55 mole percent, and exhibiting a degree of saponification of the vinyl acetate component of at least about 90 mole percent, and a multilayered structure made therewith, preferably formed by high speed thermodrawing, exhibiting uniform gas barrier properties and producing a product without pinholes, cracks, and localized areas of uneven stretching.

Abstract: There is provided a laminate having good gas barrier properties which comprises at least one barrier layer of modified ethylene-vinyl alcohol copolymer containing 0.1 to 5 mol % of pyrrolidone ring-containing units and 20 to 55 mol % of ethylene units, with the degree of saponification of the vinyl acetate component being at least 98 mol %, and at least one layer of thermoplastic resin. This laminate is superior in drawability, and can be made by drawing into bottles, cups, and the like which exhibit excellent clarity, appearance, and gas barrier properties.

Abstract: A resinous composition which comprises (A) 95 to 50 parts by weight of a saponified product of ethylene-vinyl acetate copolymer and (B) 5 to 50 parts by weight of a product formed by modifying ethylene-vinyl carboxylate ester copolymer or ethylene-acrylate ester copolymer with an .alpha.,.beta.-unsaturated carboxylic acid or anhydride thereof. This resinous composition can be made by melt extrusion into a molded article which is superior in impact resistance to that formed from the component (A) alone. The resinous composition can also be made into an inner layer or interlayer of a laminated container. This container is suitable for bottles of foods and agricultural chemicals because of its outstanding impact resistance, organic solvent resistance, and oxygen barrier properties.