Abstract: The present invention provides: a multilayer film for top-seal to be used for a tray having a surface layer containing a polystyrene-based resin, the multilayer film at least having a first layer and a second layer, the first layer containing 50% by weight or more of at least one selected from the group consisting of (a) a copolymer including a conjugated diene and a vinyl aromatic compound; (b) a copolymer resulting from hydrogenation of a copolymer including a conjugated diene and a vinyl aromatic compound; (c) a combined resin of: a hydrogenated product of a copolymer including a conjugated diene and a vinyl aromatic compound; and an ?-olefin copolymer; (d) a mixture of: a combined resin of: a hydrogenated product of a copolymer including a conjugated diene and a vinyl aromatic compound; and an ?-olefin copolymer, and an ethylene-?-olefin copolymer, and (e) a mixture of: a combined resin of: a hydrogenated product of a copolymer including a conjugated diene and a vinyl aromatic compound; and an ?-olefin co

Abstract: A polylactic acid resin film or sheet which can be satisfactorily and stably formed and has excellent matte properties. It is a single-layer matte film or sheet which comprises a polylactic acid resin composition containing a particulate substance and at least one side of which has a surface gloss as measured in accordance with ASTM-D2457-70 (45° gloss) of 60% or lower.

Abstract: A biodegradable resin drawn film or biodegradable resin drawn sheet that is excellent in transparency, impact resistance and film re-forming capability (recyclability); and a process for producing the same. In particular, a biodegradable resin drawn film or biodegradable resin drawn sheet composed mainly of a mixture of (A) a biodegradable resin of greater than or equal to 30° C. as a glass transition temperature Tg and (B) a biodegradable resin of less than or equal to 5° C. as a glass transition temperature Tg characterized in that a multiplicity of domains comprising component (B) mainly in the configuration of lamellar or rod-shaped pieces are present in a continuous phase comprising component (A) substantially in parallel to the external surface of the film or sheet; and a process for producing the same.

Abstract: An object of the present invention enables provision of an optimum shape design method in which an optimum shape of a cushioning material used in cushioning packaging can easily and adequately be designed, and an optimum shape design system in which the optimum shape design method is used. In a configuration of the optimum shape design system is characterized by providing an optimizing control unit 2a. The optimizing control unit 2a detects a correlation among CAD data M of a cushioning material 4 defined by a CAD unit 2b, a mechanical response amount detected by a mechanical response amount calculation unit 2c, manufacturing decision information detected by a manufacturing decision detection unit 2d, and manufacturing cost information detected by a cost calculation unit 2e. Then, the optimizing control unit 2a updates the CAD data M of the cushioning material 4 until an optimum shape of the cushioning material 4 is detected based on the correlation.

Abstract: An aliphatic polyester resin composition comprises an aliphatic polyester, an organic layered silicate obtained by treating a layered silicate with an organic onium salt, talc and a nonionic surfactant.

Abstract: An object of the invention is to provide a non-chlorine polypropylene wrap film excellent in adhesion, transparency, heat resistance, flexibility, gas barrier properties, touch and cutting properties, and disclosed is a polypropylene wrap film, a multilayer film having a tensile modulus of 200 to 1,000 MPa, containing at least a surface layer and an inner layer having a gas barrier resin, and being stretched into a twice or more length in a machine direction and/or a transverse direction, wherein in its multilayer constitution, the surface layer is constituted by a composition comprising, for example, a mixture of a polypropylene resin, a softening agent, an adhering agent and a liquid adhering assistant at a suitable mixing ratio, and the inner layer is constituted, for example, by an ethylene-vinyl alcohol copolymer resin.

Abstract: An object of the present invention is to provide a shrinkable film excellent in dimensional stability at a temperature of 60° C. and having good shrink properties in a temperature of 100° C. and 120° C. A low-temperature shrinkable film includes a film composed of at least one layer including at least one ethylene-?-olefin copolymer (A) with a density of from 0.870 g/cm3 to 0.920 g/cm3 and at least one ethylenic copolymer (B) having a main peak below 110° C. in the 2nd fusion behavior of differential scanning calorimetry, wherein the proportion of the heat of fusion at 100° C. or below to the total heat of fusion is from 50% to 100% in the 2nd fusion behavior of differential scanning calorimetry for ethylene-?-olefin copolymer (A); the proportion of the heat of fusion at 100° C.

Abstract: The present invention provides: a multilayer film for top-seal to be used for a tray having a surface layer containing a polystyrene-based resin, the multilayer film at least having a first layer and a second layer, the first layer containing 50% by weight or more of at least one selected from the group consisting of (a) a copolymer including a conjugated diene and a vinyl aromatic compound; (b) a copolymer resulting from hydrogenation of a copolymer including a conjugated diene and a vinyl aromatic compound; (c) a combined resin of: a hydrogenated product of a copolymer including a conjugated diene and a vinyl aromatic compound; and an ?-olefin copolymer; (d) a mixture of: a combined resin of: a hydrogenated product of a copolymer including a conjugated diene and a vinyl aromatic compound; and an ?-olefin copolymer, and an ethylene-?-olefin copolymer, and (e) a mixture of: a combined resin of: a hydrogenated product of a copolymer including a conjugated diene and a vinyl aromatic compound; and an ?-olefin co

Abstract: The present invention provides a biaxially oriented film of a polylactic acid resin that is suitable for films for bags and packaging films for various windows, particularly films for outlook window envelopes. The film is biodegradable and, as films for outlook window envelopes, is superior in the coating adaptability for an antistatic agent, a lubricant and an antiblocking agent or the like and in the high-speed cutting property. The present invention discloses a biaxially oriented film of a polylactic acid resin comprising not less than 50% by weight of a polylactic acid resin, which has a storage modulus E?at 80° C. within the range from 10 MPa to 3,000 MPa, as determined by the test method for temperature dependency of dynamic viscoelasticity, in accordance with JIS K7198 (method A); a heat shrinkage of not higher than 10%, upon heating at 80° C. for 10 seconds; and a tear strength in the width direction (TD direction) of the film of 10 to 200 mN, as determined in accordance with JIS K7128 (method B).

Abstract: To provide a method of manufacturing a gas displacement package that can cope with packages with various sizes and shapes, and a sealing packaging container, and a package. A method of manufacturing a gas displacement package and a sealing packaging container, and a package, wherein a packaging container comprising a receptacle and a lid of plastic is used, ridges of the receptacle and the lid overlapped each other, the ridges are sealed with a band tape, and the container is gas displaced through a hole of the container and is sealed.

Abstract: Provided is a polypropylene-based multilayer wrap film comprising (A) a surface layer containing a first composition comprising 50 to 80 wt. % of (S1) a crystalline polypropylene-based resin and 20 to 50 wt. % of (S2) at least one softener selected from amorphous or low-crystalline propylene-?-olefin copolymers and butene-1 polymers, and based on 100 parts by weight of the first composition, 5 to 15 parts by weight of (S3) a hydrogenated terpene resin and 10 to 20 parts by weight of (S4) an aliphatic hydrocarbon which is liquid at normal temperature, and (B) a core layer which is adjacent to the surface layer and contains 80 to 98 wt. % of (C1) a crystalline polypropylene-based resin and 2 to 20 wt. % of (C2) an aliphatic hydrocarbon which is liquid at normal temperature.