Abstract: A synthetic wood meal for a pellet that enables to manufacture a molded product with no deformation such as warping and distortion or, if any, deformation that can be alleviated to a practically non-problematic level and also features high mechanical strength. The synthetic wood meal includes 30 wt % to 70 wt % of a thermoplastic resin including polypropylene or a mixed material of polypropylene and polyethylene or polyvinyl chloride; 70 wt % to 30 wt % of a wood meal having a bulk density of 0.14 to 0.22 g/cm3 and a mean fiber length of 80 to 250 ?m in which 30 wt % or less of the wood meal having a shortest fiber length of 60 ?m or less, and 25 wt % or less of the wood meal having a shortest fiber length of 30 ?m or less; and an additive including a reinforcing agent.

Abstract: A synthetic wood meal for a pellet that enables to manufacture a molded product with no deformation such as warping and distortion or, if any, deformation that can be alleviated to a practically non-problematic level and also features high mechanical strength. The synthetic wood meal comprises 30 wt % to less than 45 wt % of a thermoplastic resin including polypropylene or a mixed material of polypropylene and polyethylene; 50 wt % to 35 wt % of a wood meal having a bulk density of 0.15 to 0.21 g/ cm3 and a mean fiber length of 101 to 189 ?m in which 19 to 29% or less of the wood meal having a shortest fiber length of 60 ?m or less, and 9 to 20% or less of the wood meal having a shortest fiber length of 30 ?m or less; and an additive including a reinforcing agent.

Abstract: A fixing device for a panel which can absorb a dimensional change due to expansion of the siding board is provided. A comb-shaped slit is formed at an area from the intermediate line C defined between opposed two sides of a rectangular metal plate to form leaf spring-shaped strip plates 41, 42 and 43. The strip plates are bent at the intermediate line C and a bend line F to form fixing pieces 41a, 42a and 43a and lock pieces 41b, 42b, and 43b so as to lock fixing ends 51a and 52b of the siding board 50. Moreover, an inclined angle ?1 of the fixing piece 41a disposed at the strip plate 41 is formed to have a different angle from an inclined angle ?2 of the fixing pieces 42a, 43a disposed at the remaining strip plates 42 and 43. Thereby the strip plates can be elastically deformed.

Abstract: The present invention directed to a synthetic wood meal for a pellet that enables to manufacture a molded product with no deformation such as warping and distortion or, if any, deformation that can be alleviated to a practically non-problematic level and also features high mechanical strength. The synthetic wood meal comprises 30 wt % to 70 wt % of a thermoplastic resin including polypropylene or a mixed material of polypropylene and polyethylene or polyvinyl chloride; 70 wt % to 30 wt % of a wood meal having a bulk density of 0.14 to 0.22 g/cm3 and a mean fiber length of 80 to 250 ?m in which 30 wt % or less of the wood meal having a shortest fiber length of 60 ?m or less, and 25 wt % or less of the wood meal having a shortest fiber length of 30 ?m or less; and an additive including a reinforcing agent.

Abstract: Disclosed are composite pellets for extrusion molding wherein fusion does not occur between the pellets, and there is no variation in size and density. A molten material obtained by an extruder for a raw material containing a thermoplastic resin and wood powder is extruded into a strand shape through a die nozzle of the extruder, and cut into a predetermined length to form a pellet. At this time, the extrusion amount, the diameter of each nozzle hole, and the number of nozzle holes are adjusted so that the linear velocity (?d) of the molten material in each nozzle hole of the die nozzle is in the range of 12 to 50 cm/sec. Further, regardless of the variations in particle diameter, etc., a stable amount of the composite pellets are supplied to the extruder, and smoothly introduced to a screw of the extruder. The composite pellets and 12-hydroxystearic acid containing a metal of Ca, Mg, or Zn are agitated together, and 0.03 to 0.

Abstract: To provide a fixing device for a panel which can absorb a dimensional change due to expansion of the siding board. A comb-shaped slit is formed at an area from the intermediate line C defined between opposed two sides of a rectangular metal plate to form leaf spring-shaped strip plates 41, 42 and 43. The strip plates are bent at the intermediate line C and a bend line F to form fixing pieces 41a, 42a and 43a and lock pieces 41b, 42b, and 43b so as to lock fixing ends 51a and 52b of the siding board 50. Moreover, an inclined angle ?1 of the fixing piece 41a disposed at the strip plate 41 is formed to have a different angle from an inclined angle ?2 of the fixing pieces 42a, 43a disposed at the remaining strip plates 42 and 43. Thereby the strip plates can be elastically deformed.

Abstract: The present invention relates to a decorative remaining formwork formed by combining a plurality of single frame plates defined by 3 or more edges comprising one edge arranged horizontally and at least one inclined edge inclined with respect to the horizontal edge; arranging the single frame plates so as to form a predetermined gap in a joint-shape between respective edges of the single frame plates adjacent each other; and having a back plate on a concrete casting surface, the back plate covering the predetermined gap in a longitudinal direction, and being fixed to the single frame plate to connect the single frame plates adjacent each other, and a cross-sectional shape in a width direction of the back plate being formed into a shape enlarged from a contact surface with respect to the single frame plate toward an opposed surface with respect to the contact surface.

Abstract: The present invention relates to a decorative remaining formwork formed by combining a plurality of single frame plates defined by 3 or more edges comprising one edge arranged horizontally and at least one inclined edge inclined with respect to the horizontal edge; arranging the single frame plates so as to form a predetermined gap in a joint-shape between respective edges of the single frame plates adjacent each other; and having a back plate on a concrete casting surface, the back plate covering the predetermined gap in a longitudinal direction, and being fixed to the single frame plate to connect the single frame plates adjacent each other, and a cross-sectional shape in a width direction of the back plate being formed into a shape enlarged from a contact surface with respect to the single frame plate toward an opposed surface with respect to the contact surface.

Abstract: Disclosed are composite pellets for extrusion molding wherein fusion does not occur between the pellets, and there is no variation in size and density. A molten material obtained by an extruder for a raw material containing a thermoplastic resin and wood powder is extruded into a strand shape through a die nozzle of the extruder, and cut into a predetermined length to form a pellet. At this time, the extrusion amount, the diameter of each nozzle hole, and the number of nozzle holes are adjusted so that the linear velocity (?d) of the molten material in each nozzle hole of the die nozzle is in the range of 12 to 50 cm/sec. Further, regardless of the variations in particle diameter, etc., a stable amount of the composite pellets are supplied to the extruder, and smoothly introduced to a screw of the extruder. The composite pellets and 12-hydroxystearic acid containing a metal of Ca, Mg, or Zn are agitated together, and 0.03 to 0.

Abstract: Disclosed is a molding material for extrusion foam molding from which woody molded foam of high quality can be obtained. From the molding material, woody molded foam of high quality with no defects is efficiently produced. Constituent materials comprising woodmeal and a thermoplastic resin as major components and containing 1-5 wt % alkane having a molecular weight of 300-1,000 g/mol are melt-kneaded until the components come into an evenly dispersed state, and the resultant mixture is molded into pellets having a given diameter to obtain a molding material. Subsequently, this molding material is extrusion-molded into a given shape together with a blowing agent by means of an extrusion molding device, thereby obtaining woody molded foam.

Abstract: A resin cultivating base serves as seedling beds for vegetation which are planted and are partially immersed in a river, lake, marsh, pond or waterway. The resin cultivating base is a three-dimensional structure constituted by long and short filaments of thermoplastic resin. The long and short filaments are curled or looped at random, and contacted, entwined and gathered, thereby forming a low density portion and a high density portion. Vegetables planted on the low density portion of the resin cultivating base suck nutritious salt such as phosphor and nitride. Microorganisms living in the resin cultivating base decompose organisms in the water, thereby purifying the water.

Abstract: There is provided a method for recycling synthetic wood materials, transformed into materials through a relatively simple method without performing elimination of encrusted concrete from a previously used sheathing board for use in a concrete form having synthetic wood materials as raw materials.

Abstract: There is provided a method for recycling synthetic wood materials, transformed into materials through a relatively simple method without performing elimination of encrusted concrete from a previously used sheathing board for use in a concrete form having synthetic wood materials as raw materials.

Abstract: There is provided a method for recycling synthetic wood materials, transformed into materials through a relatively simple method without performing elimination of encrusted concrete from a previously used sheathing board for use in a concrete form having synthetic wood materials as raw materials.