Resin formed product and methods and devices for making the same
AssigneeAraco Kabushiki Kaisha
InventorsTamotsu Nagaya, Mitsuharu Aoyama, Kouichi Oshitani, Shinji Tomita, Shigenori Hirota
Life of this patent
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Abstract
A granular, ground filler of plant origin, such as kenaf fiber, is mixed into a synthetic resin to form a melted synthetic resin Ca, which is extruded from an output port 36 of a low-pressure extruder 30 as an intermediate resin layer C. A first coating material A and a second coating material B are superimposed on the two surfaces of the intermediate resin layer C. Thereafter, both coating materials A and B are pressed and adhered to the melted intermediate resin layer C by a roller press 50.
Claims24
A method for manufacturing a resin laminate comprising:
- mixing a granular ground plant product into a melted resin material, thereby obtaining a melted resin substance;
- extruding the incited resin substance as a plate-shaped intermediate resin layer between a pair of spaced apart extraction rollers;
- superimposing surface resin layers on both surfaces of the intermediate resin layer;
- pressing the surface resin layers using a pressing member, thereby adhering tire surface resin layers to both sides of the intermediate resin layer;
- and
- cooling and hardening the surface resin layers and the intermediate resin layer, thereby producing the resin laminate in which the surface resin layers are joined to both surfaces of the intermediate resin layer.
A device for manufacturing a resin laminate comprising:
- a supply of granular ground plant product;
- a first means for mixing a melted resin with the granular ground plant product to produce a melted resin substance;
- a second means for extruding the melted resin as a plate-shaped intermediate resin layer between a pair of spaced apart extraction rollers;
- a third means for superimposing surface resin layers on both surfaces of the intermediate resin layer;
- and
- a fourth means for pressing the surface resin layers via a pressing member, adhering the surface resin layers to the intermediate resin layer, and cooling and hardening these layers in order to produce the resin laminate in which the surface resin layers are joined to both surfaces of the intermediate resin layer.
Dependencies are inferred from the claim text.