Abstract: There is provided a resin foam excellent in deformation recovery performance after compressive deformation. The resin foam of the present invention has a stress retention to be defined below of not less than 70%: stress retention (%)=(compressive stress after 60 seconds)/(compressive stress after 0 seconds)×100 wherein a resin foam in a sheet form having a thickness of 1.0 mm is compressed in the thickness direction so that the resin foam has a thickness of 20% of the initial thickness, and the compression state is held; and the compressive stress immediately after compression is defined as “compressive stress after 0 seconds,” and the compressive stress 60 seconds after holding the compression state is defined as “compressive stress after 60 seconds.

Abstract: There is provided a resin foam sheet low in the apparent density and thin and flexible, and excellent in the stability in winding-up (wind-up stability). The resin foam sheet according to the present invention has an apparent density of 0.03 to 0.30 g/cm3, a compression stress at 50%-compression of not more than 5.0 N/cm2, a thickness of not less than 0.05 mm and not more than 0.40 mm, a length of not less than 5 m, and a width of not less than 300 mm. The value determined by the following expression (1) of the resin foam sheet is preferably not more than 25%.

Abstract: There is provided a polyester elastomer foam having a micro and uniform cell structure. The polyester elastomer foam is formed by allowing a polyester elastomer composition containing a polyester elastomer and a surface-treated inorganic substance (except hydroxides) to expand. A residue on a 166 mesh sieve in the surface-treated inorganic substance (except hydroxides) is preferably not more than 0.01%.

Abstract: To be provided is a foam waterproofing material superior in waterproofness and flexible enough to be compatible with further minute clearance. The foam waterproofing material according to the present invention is a waterproofing material including a foam having a thickness of 0.1 to 1.0 mm, characterized in that the foam has a micro cell structure with an average cell diameter of 10 to 60 ?m and an apparent density of 0.01 to 0.060 g/cm3. In the foam waterproofing material, the repulsive load when compressed to 0.1 mm (0.1 mm-compressive repulsion force) of the foam is preferably 0.01 to 0.1 MPa. The foam preferably has a closed-cell structure or a semi-open- and semi-closed-cell structure. In addition, the foam may have a pressure-sensitive adhesive layer on one or both faces thereof. The pressure-sensitive adhesive layer is preferably formed on the foam via a film layer.

Abstract: There is provided a resin foam excellent in dustproof performance, particularly dustproof performance in a dynamic environment. The resin foam of the present invention has a thickness recovery ratio of 65% or more, wherein the thickness recovery ratio is defined as a ratio of a thickness 1 second after releasing a compressed state to an initial thickness, when the resin foam is compressed for 1 minute in the thickness direction so as to give a thickness equal to 20% of the initial thickness in a 23° C. atmosphere; and then the compressed state is released in a 23° C. atmosphere.

Abstract: To be provided is a foam waterproofing material superior in waterproofness and flexible enough to be compatible with further minute clearance. The foam waterproofing material according to the present invention is a waterproofing material including a foam having a thickness of 0.1 to 1.0 mm, characterized in that the foam has a micro cell structure with an average cell diameter of 10 to 60 ?m and an apparent density of 0.01 to 0.050 g/cm3. In the foam waterproofing material, the repulsive load when compressed to 0.1 mm (0.1 mm-compressive repulsion force) of the foam is preferably 0.01 to 0.1 MPa. The foam preferably has a closed-cell structure or a semi-open and semi-closed-cell structure. In addition, the foam may have a pressure-sensitive adhesive layer on one or both faces thereof. The pressure-sensitive adhesive layer is preferably formed on the foam via a film layer.

Abstract: There is provided a resin foam excellent in dustproofness and assemblability. The resin foam has a repulsive stress at 80% compression (repulsive stress when a resin foam is compressed by 80% of the initial thickness) of 1.0 to 9.0 N/cm2 and a tensile modulus of elasticity of 5.0 to 14.0 MPa. Preferably, the resin foam further has an average cell diameter of 10 to 180 ?m and an apparent density of 0.01 to 0.10 g/cm3.

Abstract: There is provided a polyester elastomer which is excellent in compression set characteristics and has a micro cell structure. The polyester elastomer foam is formed by allowing a polyester elastomer composition containing a polyester elastomer having a melting point of 180 to 240° C. and an epoxy-modified polymer to expand. The epoxy-modified polymer is an epoxy-modified polymer having a weight average molecular weight of 5,000 to 100,000 and an epoxy equivalent of 100 to 3000 g/eq.

Abstract: Provided is a frame-retardant resin foam which is highly expanded and is satisfactorily flexible so as to conform even to a minute clearance. The resin foam includes a resin and a flame-retardant component, in which the flame-retardant component is a polysiloxane-coated flame retarder. In the resin foam, the polysiloxane-coated flame retarder is preferably a polysiloxane-coated metal hydroxide, and the polysiloxane-coated metal hydroxide is contained preferably in a content of 30 to 60 percent by weight based on the total weight of the resin foam.

Abstract: Provided is a resin foam which is satisfactorily flexible and electrically conductive, can be easily processed into a desired shape, and is usable as an electrically conductive cushioning sealant capable of filling in a minute clearance between densely packaged electronic components. The resin foam has a volume resistivity of 1010 ?·cm or less and a repulsive load at 50% compression of 5 N/cm2 or less. The resin foam preferably has a surface resistivity of 1010 ohms per square or less, preferably has an apparent density of 0.01 to 0.15 g/cm3, and preferably has an expansion ratio of 9 times or more.

Abstract: The present invention relates to a resin foam having a resin compositional homogeneity throughout the entirety from a surface to an inside thereof, having a surface with a 60° gloss value based on JIS Z 8741 (1997) of 1.5 or more, and having a 25% compressive load based on JIS K 6767 (1999) of 2.00 N/cm2 or less.

Abstract: To be provided is a foam waterproofing material superior in waterproofness and flexible enough to be compatible with further minute clearance. The foam waterproofing material according to the present invention is a waterproofing material including a foam having a thickness of 0.1 to 1.0 mm, characterized in that the foam has a micro cell structure with an average cell diameter of 10 to 60 ?m and an apparent density of 0.01 to 0.050 g/cm3. In the foam waterproofing material, the repulsive load when compressed to 0.1 mm (0.1 mm-compressive repulsion force) of the foam is preferably 0.01 to 0.1 MPa. The foam preferably has a closed-cell structure or a semi-open and semi-closed-cell structure. In addition, the foam may have a pressure-sensitive adhesive layer on one or both faces thereof. The pressure-sensitive adhesive layer is preferably formed on the foam via a film layer.

Abstract: The present invention relates to a resin foam including a foam layer and a surface layer, in which the foam layer has a same composition as the surface layer, and the surface layer has a surface coating ratio defined by the following formula (1) of 40% or more: Surface ? ? Coating ? ? Ratio ? ( % ) = [ ( Area ? ? of ? ? surface ) - ( Area ? ? of ? ? pores ? ? existing ? ? in ? ? surface ) ] ( Area ? ? of ? ? surface ) × 100 ( 1 )

Abstract: The present invention relates to an impact-absorbing material including a foam having a thickness of from 0.1 to 1.0 mm, an average cell size of from 10 to 65 ?m and a density of from 0.01 to 0.20 g/cm3 and having an impact-absorbing property, as defined in the following expression (1), of from 40 to 90%: Impact-absorbing property (%)=(F0?F1)/F0×100 (1), in which F0 represents an impact force at the time of making an impactor collide with only a support plate; and F1 represents an impact force at the time of making an impactor collide with a support plate of a structure composed of the support plate and the impact-absorbing material.

Abstract: To provide a dustproofing material having superior dustproofness and having such superior flexibility as to fit in a further minute clearance typically of 0.10 to 0.20 mm. Disclosed is a foam dustproofing material which is a dustproofing material including a foam having a thickness of 0.1 to 1.0 mm, in which the foam has a micro cell structure with an average cell diameter of 10 to 65 ?m, has such characteristic properties as to give a load against repulsion of from 0.010 to 0.100 MPa upon compression to a thickness of 0.1 mm, and has an apparent density of 0.01 to 0.050 g/cm3. The foam preferably has a closed cell structure or semi-open/semi-closed cell structure. The foam dustproofing material may further include a pressure-sensitive adhesive layer on one or both sides of the foam. The pressure-sensitive adhesive layer is preferably present above the foam through a film layer.

Abstract: A vertical axis type wind power station and a blade manufacturing process, which can stabilize the turning motions of blades and can raise the power generation efficiency by lightening the blades to smoothen the turning motions of the blades; a structure and method for mounting the wind-driven device of a wind power station, by which the wind-driven device can be easily disposed at the upper portion of a building; and a windbreak wind power plant for breaking the wind by using the vertical axis type wind power stations or wind-driven devices arranged along the shoreline or the like.

Abstract: An object of the present invention is to provide a linear actuator in which reliability is improved, and performance is also easily improved. The present invention provides a linear actuator including a stator, a movable element having an iron member, and being reciprocatable with respect to the stator, a permanent magnet fixed to the stator so as to be opposed to the iron member, and a coil fixed to the stator. Because both the coil and the permanent magnet are fixed to the stator, electrical current does not have to be supplied to the movable element, and the feeder lines connected to the coil will not be broken due to the movement of the movable element. In addition, the weight of the movable element will not be increased even when the weigh of the permanent magnet is increased in order to obtain high magnetic flux density for improvement in performance. Moreover, because the movable element does not include a magnet, a magnetizing operation does not have to be applied to the movable element.

Abstract: The present invention provides an electric generator for achieving the cost reduction of the electric generator itself from the view point of the structure of the electric generator, and the cost reduction of the generation of electricity from the view point of the performance of the electric generator, and a power supply equipment for use in this electric generator.

Abstract: An object of the present invention is to provide a linear actuator in which reliability is improved, and performance is also easily improved. The present invention provides a linear actuator including a stator, a movable element having an iron member, and being reciprocatable with respect to the stator, a permanent magnet fixed to the stator so as to be opposed to the iron member, and a coil fixed to the stator. Because both the coil and the permanent magnet are fixed to the stator, electrical current does not have to be supplied to the movable element, and the feeder lines connected to the coil will not be broken due to the movement of the movable element. In addition, the weight of the movable element will not be increased even when the weigh of the permanent magnet is increased in order to obtain high magnetic flux density for improvement in performance. Moreover, because the movable element does not include a magnet, a magnetizing operation does not have to be applied to the movable element.

Abstract: An object of the present invention is to provide a linear actuator in which reliability is improved, and performance is also easily improved. The present invention provides a linear actuator including a stator, a movable element having an iron member, and being reciprocatable with respect to the stator, a permanent magnet fixed to the stator so as to be opposed to the iron member, and a coil fixed to the stator. Because both the coil and the permanent magnet are fixed to the stator, electrical current does not have to be supplied to the movable element, and the feeder lines connected to the coil will not be broken due to the movement of the movable element. In addition, the weight of the movable element will not be increased even when the weigh of the permanent magnet is increased in order to obtain high magnetic flux density for improvement in performance. Moreover, because the movable element does not include a magnet, a magnetizing operation does not have to be applied to the movable element.