Abstract: Provided is a laminated porous film having excellent shutdown characteristics and breakdown characteristics, good tearing strength and dimensional stability, and B activity. The laminated porous film comprises layer A, the main component of which is a polypropylene resin, and layer B which contains a polyethylene resin, and the ratio of the rearing strength (HMD) in the machine direction (MD) of the laminated porous film and the tearing strength (HTD) in the transverse direction (TD) of the laminated porous film with respect to the machine direction (HMD) (HTD) is 0.08 to 2.0.

Abstract: A laminated porous film having at least two porous layers layered one upon another. One porous layer consists of a resin layer containing a polypropylene resin. The other layer is a heat-resistant layer consisting of a resin composition whose crystal fusion peak temperature is higher than that of the resin composition of the layer containing the polypropylene resin. The laminated porous film has a ? activity and/or a ? crystal generation power.

Abstract: Disclosed is a laminated porous film for a separator of a battery that, while having excellent air permeation performance which contributes to electric performance, has a shutdown property which is one of properties important from the viewpoint of ensuring safety. The laminated porous film is characterized in that the laminated porous film comprises layer A formed of a porous layer composed mainly of a polypropylene resin and layer B formed of a porous layer composed mainly of a polyethylene resin, has a ?-activity, and has an electric resistance of not more than 10? at 25° C. and an electric resistance of not less than 100? after heating at 135° C. for 5 seconds and/or an air permeability of not more than 1000 sec/100 ml at 25° C. and an air permeability of not less than 10000 sec/100 ml after heating at 135° C. for 5 seconds.

Abstract: A laminated porous film having a shutdown (SD) property and a high breakdown (BD) property combined includes at least two layers, which are a porous membrane layer (A layer) having a thickness of 10 ?m or greater other than non-woven fabric and a non-woven fabric layer (B layer) having a fiber diameter of 1 ?m or less. A value of the ratio (AP1/AP2) between air permeability when heating at a heating temperature of 150° C. to 200° C. for three minutes (AP1) and air permeability prior to heating (AP2) is 10 or greater at any heating temperature between 150° C. and 200° C.

Abstract: The present invention provide a heat-shrinkable film consisting of a layer or comprising at least one layer, wherein the layer is made of a mixed resin containing a polylactic acid resin and a polyolefin resin as the main components, wherein mass ratio of the polylactic acid resin and the polyolefin resin is 95/5 to 50/50 by mass, the polylactic acid resin being a copolymer of D-lactic acid and L-lactic acid or a mixed resin of the copolymer, wherein D/L ratio of D-lactic acid and L-lactic acid is 3/97 to 15/85 or 85/15 to 97/3, the storage elastic modulus (E?) of the polyolefin resin or the soft acrylic resin at 20 degree C. being 100 MPa or less as measured at an oscillation frequency of 10 Hz and a strain of 0.1%, the film being stretched in at least one direction, and the heat shrinkage ratio of the film in the main shrinking direction being 20% or more as measured after the film is immersed in hot water of 80 degree C. for 10 seconds.

Abstract: A heat-shrinkable polyolefin series laminated film having excellent firmness (stiffness at ordinary temperature) of film, resistance to fingerprint bleaching, shrink finishability, transparency and regeneration additivity, with a small natural shrinkage and accurately separable by specific gravity, can be provided by, in a laminated film provided with a surface layer (I) and an intermediate layer (III), forming the surface layer (I) with a mixed resin of cyclic olefin series resin and a polyethylene series resin (A) with a Tm of 80° C. or higher but no greater than 125° C. as a main component, and, forming the intermediate layer (III) with a resin composition having as a main component a cyclic olefin series resin, preferably a mixed resin composition of a cyclic olefin series resin and a polyethylene series resin (C) with a Tm exceeding 125° C. but no greater than 140° C., as a main component.

Abstract: The present invention provides a high quality laminated sheet material prepared using as much materials of biological origin as possible in order to contribute to the prevention of deterioration of the environment and provide a reduction in the amount of exhaustible resources being consumed. The laminated sheet material of the present invention is characterized by having at least one first layer and at least two different kinds of layers selected from the group consisting of a second layer, a third layer and a fourth layer, wherein the first layer has a resin composition A which includes a polyester resin (a) containing 25% or more of a component of biological origin and a polyolefin resin (b); the second layer has as the main component the polyester resin (a) containing 25% or more of a component of biological origin; the third layer has as the main component the polyolefin resin (b); and the fourth layer has as the main component an adhesive resin (c).

Abstract: The present invention provides a heat-shrinkable laminated film having at least three layers including: a (I) layer; and two (II) layers respectively disposed on each surface of the (I) layer, the (I) layer being composed by a layer containing at least one polyolefin series resin as a main component and the (II) layer being composed by a layer containing at least one polylactic acid series resin as a main component, and the storage elastic modulus (E?) of the laminated film at 80° C. being 10 MPa or more and 1,000 MPa or less when dynamic viscoelasticity about a direction orthogonal to the film's main shrinking direction is measured under a condition of vibrational frequency at 10 Hz, strain at 0.1%. The film of the invention exhibits excellent shrink finishing quality, heat-shrinkage property at low temperature, and small natural shrinkage; thereby suitably used for shrinkable packing, shrinkable banding packing, shrinkable label and the like.

Abstract: A heat-shrinkable film which is excellent in mechanical characteristics such as heat shrinkage characteristics, impact resistance, and transparency and in the finish of shrinkage and which is suitable for shrink packaging, shrink bundling, shrinkable labels, and so on. A film which is made from a mixed resin comprising as the main components either a polylactic acid resin (A) and a (meth)acrylic resin (B) or a polylactic acid resin (A) and a silicone/acrylic composite rubber (D) or has at least one layer made from the mixed resin and which exhibits a heat shrinkage percentage of 20% or above in the main shrinkage direction when dipped in water at 80° C. for 10 seconds.

Abstract: The present invention provides a heat-shrinkable laminated film which exhibits excellent breakage resistance, stiffness and shrink finishing quality, and provides a molded product and heat-shrinkable label using the films, and a container. The heat-shrinkable laminated film is made of an A layer mainly constituted of a polyester series resin and a B layer mainly constituted of a polystyrene series resin, respectively used as front and back layers and an intermediate layer, in which a peak temperature of the loss elastic modulus (EA?) of a resin that constitutes the A layer exists at least one in the range of 50° C. or more and 90° C. or less; the storage elastic moduli (EA?) at 0° C. and 40° C. satisfy EA?(0)/EA?(40)?1.2, and the storage elastic moduli (EB?) at 50° C. and 90° C. of the resin that constitutes the B layer satisfy EB?(50)?1.5×108 Pa and EB?(90)?5.

Abstract: The present invention provides a heat-shrinkable laminated film including at least two layers, in which the first layer is composed of at least one kind of a polylactic acid series resin as the main component and the second layer is composed of at least one kind of a polyolefin series resin as the main component. Heat shrinkage ratio of this film in the film main shrinking direction is 30% or more when dipped in warm water of 80° C. for 10 seconds. Since this heat-shrinkable laminated film is made from a plant-derived resin, it promotes a use of biomass. Also, as this film exhibits excellent shrinkage property in low temperature, film rigidity, shrink finishing quality, and small natural shrinkage ratio, the film is suitably used for a molded product which requires heat shrinkage property, specifically, it is suitably used for shrinkable label.

Abstract: The present invention provides a polyolefin series heat-shrinkable film comprising a mixed resin mainly containing a polyolefin series resin (A), polylactic acid series resin (B), and a resin (C) facilitating compatibility with the resin (A) and the resin (B), or comprising at least one layer made of the mixed resin, wherein mass ratio of the resin (A) to the resin (B) is (A)/(B)=99/1 to 70/30; heat shrinkage ratio of the film at least in one direction when dipped in hot water at 80° C. for 10 seconds is 20% or more; and natural shrinkage ratio of the film when stored at 40° C. under 50% RH environment for 7 days is less than 10%. This polyolefin series heat-shrinkable film exhibits excellent heat-shrinkable property and shrink finishing quality, and inhibits natural shrinkage. This invention also provides a polyolefin series heat-shrinkable label and container on which the heat-shrinkable label is fitted.

Abstract: [Problem] To provide a heat-shrinkable laminate film, a molded product and a container, having excellent fracture resistance, rigidity, transparency after addition for regeneration, and in particular excellent shrink finishing quality. [Means for solving] A heat-shrinkable laminate film is drawn in at least one axial direction including at least three layers having an intermediate layer and front and back layers on respective sides of the intermediate layer. The intermediate layer is constituted by a layer composed mainly of at least one polystyrene-based resin. The front and back layers are constituted by layers composed mainly of at least one polyester-based resin. The front and back layers have a thickness ratio of 75% or less based on the total thickness of the film. The polystyrene-based resin is preferably a block copolymer. Further, preferably the heat-shrinkable laminate film has a birefringence index (?n) of 1.0×10?3 or more and 80.0×10?3 or less.

Abstract: The present invention provides a heat-shrinkable laminated film, which exhibits excellent film rigidity, shrink finishing quality, transparency of the recycled film, and a small natural shrinkage, with suppressed film interlayer peeling and shrinking stress, and which is applicable to shrinkable packing, shrinkable bond-packing, shrinkable label and the like. The heat-shrinkable laminated film comprises: a surface layer (S layer) composed of a polyester series resin composition containing a polyvalent carboxylic acid residue and a polyvalent alcohol residue; a middle layer (M layer) composed of a styrene series resin composition; and an adhesive layer (AD layer) which contains a copolymer of styrene series hydrocarbon and a conjugated dienic hydrocarbon or hydrogenated derivatives thereof, and having a styrene series hydrocarbon content rate to the entire copolymer or hydrogenated derivatives is 5˜40 mass % or less.

Abstract: To provide a heat-shrinkable laminate film excellent in film elasticity (rigidity at room temperature), shrink finishing quality, transparency when incorporated as recycled and natural shrinkage and having delamination of the film suppressed, so that it is suitable for application in shrink wrapping, shrink bundling wrapping, shrink label, etc., and a plastic container provided with a heat shrinkable label made of such a film. A laminated film comprising a surface layer (S layer) composed mainly of a polyester resin, an intermediate layer (M layer) composed mainly of a styrene resin and an adhesive layer (AD layer) composed mainly of an adhesive resin, wherein its heat shrinkage is at least 30% in at least one direction when it is dipped in warm water of 80° C. for 10 seconds, or its tensile modulus of elasticity in a direction perpendicular to the main shrink direction is at least 1,200 MPa.

Abstract: A heat-shrinkable polyolefin series laminated film having excellent firmness (stiffness at ordinary temperature) of film, resistance to fingerprint bleaching, shrink finishability, transparency and regeneration additivity, with a small natural shrinkage and accurately separable by specific gravity, can be provided by, in a laminated film provided with a surface layer (I) and an intermediate layer (III), forming the surface layer (I) with a mixed resin of cyclic olefin series resin and a polyethylene series resin (A) with a Tm of 80° C. or higher but no greater than 125° C. as a main component, and, forming the intermediate layer (III) with a resin composition having as a main component a cyclic olefin series resin, preferably a mixed resin composition of a cyclic olefin series resin and a polyethylene series resin (C) with a Tm exceeding 125° C. but no greater than 140° C., as a main component.

Abstract: A polishing pad for polishing a surface of a work, (A) said polishing pad being made of a resin formed of a ring-opened polymer from a cycloolefin by metathesis polymerization, and (B) said resin having a heat deformation temperature of 90 to 135° C., a compression elastic modulus of 980 to 2,940 MPa and a water absorption of 0.01 to 0.25% by weight. The polishing pad of the present invention has a proper hardness, shows a low water absorption, causes no damage on a work surface and has durability.

Abstract: A plastic, lightweight formwork for concrete, which is an integrally molded article of a crosslinked polymer obtained by mixing a monomer solution A of a metathesis polymerizable cycloolefin containing a catalyst component of a metathesis polymerization catalyst system and a monomer solution B of a metathesis polymerizable cycloolefin containing an activator component of a metathesis polymerization catalyst system, injecting the mixture into a mold and subjecting the mixture to polymerization and a crosslinking reaction in the mold. (1) The formwork has a rectangular plate having a front surface and having a longitudinal length of 1,000-4,000 mm, a lateral length which is 1/2-1/10 of the longitudinal length and a thickness of 3-10 mm, and a reverse surface of the plate has a frame surrounding the plate and 3 to 6 crosspiece ribs are longitudinally formed on the reverse surface, the frame surrounding the plate having a thickness of 5 to 20 mm and a height of 40 to 100 mm.

Abstract: One of the objects of the present invention is to produce a shaped article of a cured resin having well-balanced heat resistance and toughness by using a plural liquid pack type heat-curable resinous composition of a low liquid viscosity and excellent handling property with good storage stability. As claimed in the present invention, individual components comprising a polyisocyanate compound (a), a radically polymerizable unsaturated monomer compound bearing no functional group reactive with isocyanate, for example, styrene or a (meth)acrylic acid derivative (b), a polyol compound bearing no radically polymerizable unsaturated bond such as a polyether polyol (c), a radical catalyst (e) and a ring-forming catalyst (d) are separated into 2 liquid packs or 3 liquid packs, and they are mixed on molding, fed into the mold, and reaction-cured in the mold to give a shaped article of a cured resin of excellent heat resistance, toughness and other properties.

Abstract: A plural liquid pack type heat curable resin compound useful for producing a shaped resin article having an enhanced resistance to heat and chemicals, and excellent mechanical and electrical properties, comprises a first individual liquid component (A) comprising a polyisocyanate compound (a) and a second individual liquid component (B) comprising a glycidyl acrylate compound (b) having ##STR1## groups in which R' and R" respectively and independently represent a --H or --CH.sub.3, a cyclization catalyst (c) and optionally at least one of polyol compounds (e) and polyepoxy compounds (f), the first and/or second individual liquid components (A) and/or (B) comprising a radical curing catalyst (d).