WO2019004067A1 - Procédé de fabrication de structure stratifiées, et structure stratifiées - Google Patents

Procédé de fabrication de structure stratifiées, et structure stratifiées Download PDF

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Publication number
WO2019004067A1
WO2019004067A1 PCT/JP2018/023738 JP2018023738W WO2019004067A1 WO 2019004067 A1 WO2019004067 A1 WO 2019004067A1 JP 2018023738 W JP2018023738 W JP 2018023738W WO 2019004067 A1 WO2019004067 A1 WO 2019004067A1
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WO
WIPO (PCT)
Prior art keywords
resin sheet
reinforcing material
molten resin
sheet
resin
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Application number
PCT/JP2018/023738
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English (en)
Japanese (ja)
Inventor
祥 中島
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キョーラク株式会社
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Filing date
Publication date
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Publication of WO2019004067A1 publication Critical patent/WO2019004067A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/12—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor of articles having inserts or reinforcements

Definitions

  • the present invention relates to a method of manufacturing a laminated structure and a laminated structure.
  • a laminated structure is obtained by laminating two resin sheets.
  • a rib is formed by causing one resin sheet to protrude to the other resin sheet.
  • a reinforcing material unit is disposed between a front wall and a back wall which are two resin sheets.
  • Cited Reference 1 in the case of forming a resin panel in Cited Reference 1, as shown in FIG. 7 of Cited Reference 1, a reinforcing material unit held by a manipulator is used for a resin sheet adsorbed in a cavity of a mold. It is described to move and press horizontally.
  • the reinforcing material unit of Patent Document 1 is made of metal such as aluminum or hard plastic, and even if the reinforcing material unit of such material is pressed against the molten resin, the adhesion between the reinforcing material unit and the molten resin is It is weak, and the reinforcement unit may fall before the mold clamping of the subsequent mold.
  • the hole may be a cosmetic material sheet etc. after inserting the reinforcing material. It is not good for aesthetics.
  • the present invention has been proposed in view of the problems of the prior art as described above, and when manufacturing a laminated structure in which a reinforcing material is interposed between two resin sheets, the reinforcing material is stable. It is an object of the present invention to make it possible to intervene between resin sheets and to provide a laminated structure.
  • a method of manufacturing a laminated structure according to the present invention is a method of manufacturing a laminated structure in which a reinforcing material intervenes between a first resin sheet and a second resin sheet, Attaching a temporary holding material to the surface on the front side or the back side of the reinforcing material, and a first molten resin sheet between the first divided mold and the second divided mold facing each other
  • a fabric is used, and the
  • the laminated structure of the present invention is a laminated structure in which a reinforcing material intervenes between the first resin sheet and the second resin sheet, and a non-woven fabric intervenes between the reinforcing material and at least one of the resin sheets.
  • the nonwoven fabric has a basis weight of 50 g / m 2 to 300 g / m 2 .
  • the adhesive force between the reinforcing material unit and the molten resin becomes strong.
  • the fabric weight is important, and by setting the fabric weight of the non-woven fabric to 50 g / m 2 to 300 g / m 2 , the reinforcing material is reliably held.
  • the reinforcing material when manufacturing a laminated structure in which a reinforcing material is interposed between two resin sheets, the reinforcing material can be stably interposed between the resin sheets.
  • FIG. 3 is a cross-sectional view taken along lines AA, BB and CC in FIG.
  • FIG. 1 It is a figure which shows the manufacturing method of the resin-made board of embodiment, and shows the insertion process of a reinforcing material.
  • A) is a figure which shows the state in which the reinforcing material is hold
  • (b) is a figure which shows the state which the nonwoven fabric extended and the inclination produced in the reinforcing material.
  • A) is a figure which shows the state which inserted the reinforcement in the direction (lateral direction) orthogonal to the hanging-down direction of a molten resin sheet, (b) is parallel to the hanging-down direction of a molten resin sheet It is a figure which shows the state inserted in a certain direction (vertical direction).
  • FIG. 1 is a perspective view of a resin board 1 according to the present embodiment.
  • FIG. 2 is a plan view of the resin board 1 of the present embodiment.
  • FIG. 3 is a cross-sectional view taken along lines AA, BB and CC of FIG.
  • FIG. 4 is a perspective view of the reinforcing material 3 disposed inside the resin board 1 of the present embodiment.
  • the external shape, the internal shape, and the shape, arrangement, and the like of the reinforcing member 3 of the resin board 1 shown in FIGS. 1 to 4 are exemplary for explaining the method of manufacturing a laminated structure according to the present invention. It is only a thing.
  • the resin board 1 has a front surface FS and a back surface BF, and has a substantially rectangular parallelepiped shape.
  • the resin board 1 has a resin laminate 2 in which a first resin sheet 21 and a second resin sheet 22 are laminated, and a front surface of the first resin sheet 21.
  • a cosmetic material sheet 23 provided on the surface side.
  • the front surface of the cosmetic material sheet 23 constitutes the front surface FS of the resin board 1.
  • a hollow portion H is formed between the first resin sheet 21 and the second resin sheet 22.
  • a parting line PL at the time of molding of the resin is formed. Note that providing the cosmetic material sheet 23 is not essential.
  • the cosmetic material sheet 23 may not be provided.
  • the first resin sheet 21 and the second resin sheet 22 are thermoplastic resins.
  • the resin material is not limited and may be a foamed resin or a non-foamed resin, but in order to secure the rigidity of the resin board 1, it is preferable to be formed from the non-foamed resin. It is preferable to use a resin material with high melt tension from the viewpoint of preventing the occurrence of thickness variation due to draw-down, neck-in, etc. during molding, and on the other hand, the transferability to the mold and the followability are good. Therefore, it is preferable to use a highly fluid resin material.
  • resin materials of the first resin sheet 21 and the second resin sheet 22 include polyolefins such as polypropylene and polyethylene, and acrylic derivatives such as polyamide, polystyrene and polyvinyl chloride, or a mixture of two or more of them. It can be mentioned.
  • the first resin sheet 21 and the second resin sheet 22 may be molded using a resin material mixed with a glass filler in order to increase the rigidity and the strength.
  • a glass filler include glass fibers, glass fiber cloth such as glass cloth and glass nonwoven fabric, glass beads, glass flakes, glass powder, milled glass and the like.
  • the glass include E glass, C glass, A glass, S glass, D glass, NE glass, T glass, quartz, low dielectric constant glass, high dielectric constant glass and the like.
  • glass fillers but also talc, calcium carbonate, wollastonite, inorganic fillers such as magnesium based materials, carbon fibers, etc. may be mixed to increase the rigidity.
  • the cosmetic material sheet 23 is configured for the purpose of improving the appearance or decoration of the resin board 1 or protecting an object that comes in contact with the resin board 1.
  • a fibrous surface material sheet-like surface material, a film-like surface material, or the like is applied as a material of the cosmetic material sheet 23 .
  • the material of the fiber covering material includes synthetic fibers such as polyester, polypropylene, polyamide, polyurethane, acrylic and vinylon, semi-synthetic fibers such as acetate and rayon, regenerated fibers such as viscose rayon and copper ammonia rayon, cotton, hemp, Natural fibers such as wool and silk, or blends of these fibers may be mentioned.
  • rib groups R11 to R16 and R21 to R26 are formed on the resin board 1.
  • the surface on the front side of the second resin sheet 22 protrudes toward the first resin sheet 21, and the ribs of the first resin sheet 21 are formed. It is formed to be welded to the surface on the back side (the surface opposite to the surface on which the cosmetic material sheet 23 is disposed).
  • the elongated reinforcing member 3 is disposed in the hollow portion H between the rib group R11 to R16 and the rib group R21 to R26.
  • the material of the reinforcing material 3 is not particularly limited, in order to secure the strength and rigidity of the resin board 1, it is preferably made of metal such as aluminum or hard plastic.
  • the reinforcing material 3 is formed by, for example, extrusion molding.
  • the reinforcing member 3 is a connecting plate shape connecting the first plate portion 31 and the second plate portion 32 parallel to each other, and the first plate portion 31 and the second plate portion 32. It has a portion 33 and has an H-shaped cross section.
  • the surface facing the first resin sheet 21 in the first plate-like portion 31 is the first surface 311, and the surface facing the second resin sheet 22 in the second plate-like portion 32 is the second surface 321.
  • the reinforcing material 3 is temporarily held by the molten resin sheet by pressing the first surface 311 of the reinforcing material 3 against the molten resin sheet at the time of molding a resin described later.
  • the non-woven fabric 5 is attached to the first surface 311 of the reinforcing material 3.
  • the non-woven fabric 5 include polyethylene, polypropylene, polystyrene, polyester, polyurethane, mixtures of these, and hairs (felt etc.).
  • FIGS. 5 to 12 are views for sequentially explaining the method of manufacturing the resin board of the present embodiment.
  • 6 to 8 and 11 to 12 show the clamping device 140 and the molten resin sheet cut at a position corresponding to the cross section CC in FIG.
  • the cosmetic material sheet 23 is omitted in each of FIGS. 6 to 12.
  • the molding apparatus 100 for a resin molded product has an extrusion device 120 and a mold clamping device 140 disposed below the extrusion device 120.
  • the extrusion device 120 is composed of a two-system extrusion mechanism for molten resin. That is, the extrusion device 120 includes cylinders 18A and 18B to which hoppers 16A and 16B are respectively attached, hydraulic motors 20A and 20B respectively connected to the cylinders 18A and 18B, and accumulators 24A whose insides respectively communicate with the cylinders 18A and 18B. , 24B and plungers 26A, 26B.
  • Plungers 26A and 26B are respectively inserted into accumulators 24A and 24B, and by driving plungers 26A and 26B, plungers 26A and 26B are advanced and retracted within accumulators 24A and 24B, whereby the contents of accumulators 24A and 24B are obtained. Make the product variable.
  • the push-out device 120 is additionally provided with a hydraulic cylinder (not shown) for driving the plungers 26A, 26B.
  • the thermoplastic resin introduced from the hoppers 16A and 16B is melted and kneaded in the cylinders 18A and 18B by the rotation of the screws by the hydraulic motors 20A and 20B, and a molten resin (hereinafter referred to as "molten resin") ) Are transferred to the accumulators 24A and 24B and stored in a fixed amount.
  • molten resin molten resin
  • the molten resin stored in the accumulators 24A and 24B is supplied to the T-die 28 through the valve 27 by the actuation of the plungers 26A and 26B.
  • the plungers 26A and 26B are driven to reduce the internal volume of the accumulators 24A and 24B, and the molten resin stored in the accumulators 24A and 24B is pressurized and fed to the T dies 28A and 28B, thereby making the molten resin To generate an extrusion pressure.
  • the T dies 28A and 28B push the supplied molten resin downward from the extrusion slits as continuous sheet-like molten resin sheets P and P.
  • the extruded molten resin sheets P and P are fed downward while being pressed by a pair of rollers 40AA and 40AB and a pair of rollers 40BA and 40BB which are arranged at an interval, and the divided molds 42A and 42B are obtained. Dropped between.
  • corresponds to the longitudinal direction of FIG.
  • the mold clamping device 140 has divided molds 42A and 42B. Sliding parts 43A and 43B are provided on the split molds 42A and 42B, respectively.
  • the sliding portions 43A and 43B face each other.
  • the sliding portion 43A can slide in a direction perpendicular to the molten resin sheet P (that is, in the horizontal direction), so that relative movement is possible relative to the forming surface 116A (see FIG. 6) of the split mold 42A. It is configured.
  • the sliding portion 43B can slide in a direction (that is, a horizontal direction) orthogonal to the molten resin sheet P, thereby being relative to the forming surface 116B (see FIG. 6) of the split mold 42B. It is configured to be movable.
  • the reinforcing material 3 in which the non-woven fabric 5 is attached to the first surface 311 is prepared.
  • Any adhesive may be used as the adhesive when the non-woven fabric 5 is attached to the reinforcing material 3 as long as the reinforcing material 3 does not fall off from the non-woven fabric 5 by its own weight.
  • the non-woven fabric 5 used as a temporary holding material only needs to exhibit an anchor effect with the molten resin, and thus may be made of a different material from the molten resin sheet as the base material.
  • the non-woven fabric 5 to be used needs to be appropriately set in basis weight, and the basis weight of the non-woven fabric 5 is set to 50 g / m 2 to 300 g / m 2 . If the basis weight of the non-woven fabric 5 is less than 50 g / m 2 , the function as a temporary holding material may be insufficient, and the effect of improving the adhesive strength may not be sufficiently obtained. On the contrary, if the basis weight of the non-woven fabric 5 exceeds 300 g / m 2 , the amount of extension of the non-woven fabric 5 becomes large, which may cause inconveniences such as inclination of the reinforcing material 3 and the like.
  • the non-woven fabric 5 is 0.3 mm to 1.5 mm.
  • the cosmetic material sheet 23 is temporarily fixed so as to cover the formation surface of the divided mold 42A by a temporary fixing pin (not shown) provided on the divided mold 42A. That is, the decorative material sheet 23 is disposed between the split mold 42A and the molten resin sheet P.
  • the molten resin sheets P and P (one example of the first molten resin sheet and the second molten resin sheet, respectively) extruded from the T dies 28A and 28B are divided into molds 42A, 42B (respectively an example of a first split mold, an example of a second split mold).
  • the sliding portions 43A and 43B are moved (slided) in the direction in which the sliding portions 43A and 43B approach each other, thereby bringing the ends of the sliding portions 43A and 43B into contact with the molten resin sheets P and P.
  • a closed space SP1 is formed between the forming surface 116A of the split mold 42A and the molten resin sheet P
  • a closed space SP2 is formed between the forming surface 116B of the split mold 42B and the molten resin sheet P.
  • each of the divided molds 42A and 42B has a built-in vacuum chamber, and a communication path for vacuum suction is provided between the vacuum chamber and the formation surfaces 116A and 116B. Then, the air in the sealed spaces SP1 and SP2 is sucked from the communication passage by the vacuum chamber. By this suction, as shown in FIG. 7, the pair of molten resin sheets P and P are pressed against the forming surfaces 116A and 116B, respectively, and are shaped (shaped) along the forming surfaces 116A and 116B. At this time, the molten resin sheet P on the left side is shaped, and the cosmetic material sheet 23 is pressed together with the molten resin sheet P against the forming surface 116B of the split mold 42B. Thereby, the cosmetic material sheet 23 is welded to the molten resin sheet P.
  • the reinforcing material 3 to which the non-woven fabric 5 is attached is disposed between the split molds 42A and 42B while being held by the manipulator 90. Then, the surface (the first surface 311 in FIG. 4) to which the nonwoven fabric 5 of the reinforcing material 3 is attached is pressed against the molten resin sheet P adsorbed to the forming surface 116B of the split mold 42B. Then, the molten resin enters the fine irregularities on the material surface of the non-woven fabric 5 to increase the adhesion of the reinforcing material 3 to the molten resin sheet P (anchor effect), and the reinforcing material 3 is made by the molten resin sheet P via the non-woven fabric 5.
  • FIG. 9 is a figure which shows the state in which the reinforcing material is normally hold
  • the non-woven fabric 5 having a basis weight of more than 300 g / m 2 is used, as shown in (b) of FIG. If molding is performed while being held in this state, the shape of the corner portion of the reinforcing material 3 is transferred to the molten resin sheet P, which causes the appearance of the laminated structure to be impaired.
  • the reinforcing material 3 is in a direction (lateral direction) perpendicular to the hanging direction of the molten resin sheet P, and FIG. As shown to b), the case where the reinforcement 3 is made into the direction (longitudinal direction) parallel to the hanging-down direction of the molten resin sheet P is considered.
  • a direction (longitudinal direction) parallel to the drooping direction of the molten resin sheet P It is more advantageous to
  • the split molds 42A and 42B are clamped to sandwich the molten resin sheets P and P.
  • a pinch-off portion 118 is provided on the outer periphery of the split molds 42A and 42B so as to surround the forming surfaces 116A and 116B of the split molds 42A and 42B, and a pair of molten resin sheets P, The periphery of P is welded to form a parting line.
  • the split molds 42A and 42B are opened to take out a resin molded product having a hollow portion.
  • the burr formed around the parting line is cut and removed by a cutter or the like.
  • the resin board 1 is completed.
  • the non-woven fabric 5 is attached to the surface of the reinforcing material 3 in contact with the molten resin sheet, and the reinforcing material 3 is melted resin via the non-woven fabric 5 It was made to press on the sheet. Therefore, it is possible to prevent the reinforcing material 3 from being detached from the molten resin sheet at least until after the mold clamping of the divided mold (that is, sandwiching the reinforcing material 3 between the two molten resin sheets). Further, by setting the basis weight of the non-woven fabric 5 in an appropriate range, the reinforcing material 3 does not have an inclination or the like. Therefore, the resin board 1 having the reinforcing material 3 in the hollow portion H between the two resin sheets can be stably manufactured.
  • the cosmetic material sheet 23 is stacked on the front surface of the first resin sheet 21 has been described, but providing the cosmetic material sheet 23 is not essential. That is, the cosmetic material sheet 23 may not be disposed between the split molds 42A and 42B, and the cosmetic material sheet 23 may not be pressed to the forming surface 116A of the split mold 42A together with the molten resin sheet P.
  • the cosmetic material sheet 23 it is assumed that a pressing mark is generated on the front surface of the first resin sheet 21 due to the reinforcing material 3 being pressed by the first resin sheet 21. Also, with the cosmetic material sheet 23, the pressing marks become difficult to see. Therefore, it is preferable to provide the cosmetic material sheet 23 from the aesthetic viewpoint of the resin board 1.
  • FIG. 13 is a partially enlarged view of the vicinity of the reinforcing material 3 in the B-B cross section of FIG.
  • the reinforcing material 3 when the reinforcing material 3 is pressed against the molten resin sheet P, the reinforcing material 3 is strongly pressed to such an extent that the raised portion 211 by the molten resin sheet P is formed on the periphery of the first surface 311 of the first plate-like portion 31 of the reinforcing material 3 It can also be done.
  • the formation of the raised portions 211 at the peripheral edge of the reinforcing material 3 restricts the movement of the reinforcing material 3 in the direction along the surface of the first resin sheet 21. That is, the raised portions 211 function as positioning of the reinforcing material 3 after molding.
  • the raised portions 211 are also formed at both end portions in the longitudinal direction of the reinforcing material 3, it is possible to prevent the reinforcing material 3 from being displaced in the longitudinal direction.
  • the protruding portion 211 is not formed, the first resin sheet 21 and / or the second resin sheet 22 corresponding to the side wall portion of the resin laminate 2 is damaged by movement of the reinforcing material 3 in the longitudinal direction, or Although there is a risk of breakage, the protuberances 211 prevent such a situation.
  • the protruding surface protrudes toward the forming surface of the divided mold 42B on the forming surface 116A of the divided mold 42A.
  • the part may be formed.
  • a BB cross section (a cross section corresponding to FIG. 3B) of the molded resin board is as shown in FIG. That is, the protrusions 221 are formed on the second resin sheet 22 in correspondence with the above-mentioned protruding portions of the forming surface 116A of the split mold 42A.
  • the projections 221 are in contact with the back surface of the reinforcing material 3A of FIG. 14, the plate-like portion of the reinforcing material 3A is formed on the back surface of the resin board (that is, the back surface of the second resin sheet 22). The appearance of the entire trace is prevented.
  • the manufacturing method of the laminated structure of this invention is not limited to the said embodiment, In the range which does not deviate from the main point of this invention, various improvement and change are made. Of course it is also good.
  • the shape of the reinforcing material 3 of the embodiment described above is H-shaped in cross section as shown in FIG. 4, the shape is not limited to such a form, and can be configured in any shape.
  • the reinforcing material may have a polygonal, circular, C-shaped or U-shaped cross section.
  • the reinforcing material may be solid or hollow.
  • the molding method of the resin may be performed by blow molding instead of vacuum molding.
  • blow molding a hole for blow molding is provided in the split mold, and in a state in which the split mold is clamped, molding is performed by pressing the foam parison against the cavity surface of the split mold.
  • compressed gas such as air is blown into the inside of the foam parison from holes for blow molding provided in the split mold, and blow molding is performed under a predetermined blow pressure.
  • molding may be performed by a method of combining blow molding and vacuum molding.
  • the non-woven fabric 5 is attached to the first surface 311 on the front side of the reinforcing material 3 and the first surface 311 is pressed against the molten resin sheet P in FIG.
  • the nonwoven fabric 5 may be attached to the second surface 321 on the back side of the reinforcing material 3, and the second surface 321 may be pressed against the molten resin sheet P on the right side (that is, pressed against the split mold 42A) in FIG.
  • a laminated structure was manufactured according to the above-mentioned manufacturing method.
  • a reinforcing material a square steel reinforcing material of 16 mm ⁇ 16 mm was used.
  • the thickness of steel used for the reinforcing material is 1.2 mm
  • the length of the reinforcing material is 1005 mm
  • the weight of the reinforcing material is 530 g.
  • Three such reinforcements were inserted.
  • the insert direction of the reinforcing material was horizontal and longitudinal.
  • the non-woven fabric used is as shown in Table 1.
  • the material of the non-woven fabric is polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • the non-woven fabric having a basis weight of 75 g / m 2 or less is a non-woven fabric consisting of 39% of rayon fibers, 17% of polyester fibers, and 44% of acrylic ester fibers.
  • An acrylic pressure-sensitive adhesive was used as the adhesive, and the coating amount was 45 g / m 2 .
  • the evaluation criteria of "the product” measured the peeling strength of the reinforcing material from the surface which adhered the nonwoven fabric in a product, and evaluated it by the following criteria.
  • “(Circle)” The peeling strength at the time of lifting the edge part of a reinforcement was 30 N or more.
  • "X” Peeling strength when lifting the end of the reinforcing material was less than 30N.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

[Problème] Faire en sorte que, lors de la fabrication d'une structure stratifiée dans laquelle un matériau de renforcement est intercalé entre deux feuilles de résine, il soit possible d'intercaler de manière stable ce matériau de renforcement entre les feuilles de résine. [Solution] A cet effet, l'invention concerne un procédé de fabrication d'une structure stratifiée dans laquelle un matériau de renforcement est intercalé entre une première feuille de résine et une seconde feuille de résine. Ce procédé comprend les étapes suivantes : une étape de fixation d'un matériau de maintien temporaire sur la surface avant ou la surface arrière d'un matériau de renforcement ; une étape d'extrusion d'une première feuille de résine fondue et d'une seconde feuille de résine fondue entre un premier moule fendu et un second moule fendu qui se font face ; une étape de pressage de la première feuille de résine fondue sur la surface de formation du premier moule fendu, et de pressage de la seconde feuille de résine fondue sur la surface de formation du second moule fendu ; une étape de pressage de la surface du matériau de renforcement, là où l'élément de maintien temporaire a été fixé, contre la première feuille de résine fondue, pour ainsi amener le matériau de renforcement à être maintenu sur la première feuille de résine fondue ; et une étape de serrage du premier moule fendu et du second moule fendu. Le matériau de maintien temporaire est un tissu non tissé, et le poids de base de ce tissu non tissé est fixé de 50 à 300g/m2.
PCT/JP2018/023738 2017-06-30 2018-06-22 Procédé de fabrication de structure stratifiées, et structure stratifiées WO2019004067A1 (fr)

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JP2017-129845 2017-06-30
JP2017129845A JP6916982B2 (ja) 2017-06-30 2017-06-30 積層構造体の製造方法及び積層構造体

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11235129A (ja) * 1998-02-24 1999-08-31 Hagiwara Kogyo Kk 農園芸用遮光資材
JPH11300818A (ja) * 1998-04-16 1999-11-02 Nanba Press Kogyo Kk オレフィン系樹脂複合材による中空体の表皮一体成形
WO2006043703A1 (fr) * 2004-10-19 2006-04-27 Kyoraku Co., Ltd. Article moule par soufflage a croute superficielle et son procede de fabrication
JP2007030773A (ja) * 2005-07-28 2007-02-08 Howa Seni Kogyo Kk 車両用成形天井の製造方法
JP2010005872A (ja) * 2008-06-25 2010-01-14 Kyoraku Co Ltd 複合樹脂成形品およびその製造方法
WO2013047224A1 (fr) * 2011-09-26 2013-04-04 キョーラク株式会社 Panneau multicouche
WO2017119478A1 (fr) * 2016-01-08 2017-07-13 キョーラク株式会社 Procédé de fabrication d'une structure stratifiée et structure stratifiée

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5590292B2 (ja) * 2009-12-29 2014-09-17 キョーラク株式会社 樹脂積層板の製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11235129A (ja) * 1998-02-24 1999-08-31 Hagiwara Kogyo Kk 農園芸用遮光資材
JPH11300818A (ja) * 1998-04-16 1999-11-02 Nanba Press Kogyo Kk オレフィン系樹脂複合材による中空体の表皮一体成形
WO2006043703A1 (fr) * 2004-10-19 2006-04-27 Kyoraku Co., Ltd. Article moule par soufflage a croute superficielle et son procede de fabrication
JP2007030773A (ja) * 2005-07-28 2007-02-08 Howa Seni Kogyo Kk 車両用成形天井の製造方法
JP2010005872A (ja) * 2008-06-25 2010-01-14 Kyoraku Co Ltd 複合樹脂成形品およびその製造方法
WO2013047224A1 (fr) * 2011-09-26 2013-04-04 キョーラク株式会社 Panneau multicouche
WO2017119478A1 (fr) * 2016-01-08 2017-07-13 キョーラク株式会社 Procédé de fabrication d'une structure stratifiée et structure stratifiée

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