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    • 3. 发明申请
    • Method and mold for manufacturing biodegradable molded articles
    • 用于制造生物可降解模塑制品的方法和模具
    • US20080138458A1
    • 2008-06-12
    • US12010594
    • 2008-01-28
    • Akio OzasaAkihisa HashimotoRumi ShinoharaShinji TanakaTakeshi Shingu
    • Akio OzasaAkihisa HashimotoRumi ShinoharaShinji TanakaTakeshi Shingu
    • B29C33/10B29C33/04
    • B29C43/184B29C33/10B29C43/003B29C43/206B29C43/36B29C44/14B29C44/3426B29C44/569B29K2105/04B29K2995/0059B29L2031/712
    • Using a metal mold (20a) consisting of a convex mold part (21a) and a concave mold part (22a), a molding material (14) is placed between a pair of coating films (12), and after claming, the molding material (14) and the coating film (12) are heated and molded to make a biodegradable expanded molded article, and at the same time, the coating film (12) is softened and pressure-bonded to a surface of the biodegradable expanded molded article. An exhaust hole (31a) and (32a) are provided on the convex mold part (21a) and the concave mold part (22a), respectively. At the time of heating and molding, gaseous matter existing between the coating film (12) and a surface of the metal mold (20a) is discharged out of the metal mold (20a) through the exhaust holes (31a) and (32a). Accordingly, it is possible to provide a method and a mold to manufacture a biodegradable expanded molded article easily and with excellent accuracy of dimension, having enough strength, enough water resistance, very excellent biodegradability and excellent surface smoothness even if the biodegradable molded article has a complicated shape.
    • 使用由凸模部分(21a)和凹模部分(22a)组成的金属模具(20a),将成型材料(14)放置在一对涂膜(12)之间, 将成型材料(14)和涂膜(12)加热成型,制成生物降解性发泡成型体,同时使涂膜(12)软化并压接在生物降解性膨胀型 模制品。 排气孔(31a)和(32a)分别设置在凸模部分(21a)和凹模部分(22A)上。 在加热成型时,存在于涂膜(12)和金属模具(20a)的表面之间的气体物质通过排气孔(31a)和(a1)从金属模具(20A)排出出 32 a)。 因此,即使可生物降解的成型体具有可以生物降解的成型体,也可以容易且具有优异的尺寸精度,具有足够的强度,足够的耐水性,极好的生物降解性和优异的表面平滑性来制造可生物降解的发泡成型体的方法和模具 复杂的形状。
    • 5. 发明授权
    • Process for producing biodegradable molded item and molding dies therefor
    • 用于制造生物可降解模塑制品的方法和模具
    • US08043539B2
    • 2011-10-25
    • US10507507
    • 2003-03-12
    • Akio OzasaAkihisa HashimotoRumi ShinoharaShinji TanakaTakeshi Shingu
    • Akio OzasaAkihisa HashimotoRumi ShinoharaShinji TanakaTakeshi Shingu
    • B29C44/06B32B9/00
    • B29C43/184B29C33/10B29C43/003B29C43/206B29C43/36B29C44/14B29C44/3426B29C44/569B29K2105/04B29K2995/0059B29L2031/712
    • Using a metal mold (20a) consisting of a convex mold part (21a) and a concave mold part (22a), a molding material (14) is placed between a pair of coating films (12), and after clamping, the molding material (14) and the coating film (12) are heated and molded to make a biodegradable expanded molded article, and at the same time, the coating film (12) is softened and pressure-bonded to a surface of the biodegradable expanded molded article. An exhaust hole (31a) and (32a) are provided on the convex mold part (21a) and the concave mold part (22a), respectively. At the time of heating and molding, gaseous matter existing between the coating film (12) and a surface of the metal mold (20a) is discharged out of the metal mold (20a) through the exhaust holes (31a) and (32a). Accordingly, it is possible to provide a method and a mold to manufacture a biodegradable expanded molded article easily and with excellent accuracy of dimension, having enough strength, enough water resistance, very excellent biodegradability and excellent surface smoothness even if the biodegradable molded article has a complicated shape.
    • 使用由凸模部件(21a)和凹模部件(22a)组成的金属模具(20a),将成型材料(14)放置在一对涂膜(12)之间,并且在夹紧之后,模制材料 (14)和涂膜(12)进行加热成型,制成生物降解性发泡成形体,同时将涂膜(12)软化并压接在生物降解性发泡成形体的表面。 排气孔(31a)和(32a)分别设置在凸模部分(21a)和凹模部分(22a)上。 在加热和模塑时,存在于涂膜(12)和金属模具(20a)的表面之间的气体通过排气孔(31a)和(32a)从金属模具(20a)排出。 因此,即使可生物降解的成型体具有可以生物降解的成型体,也可以容易且具有优异的尺寸精度,具有足够的强度,足够的耐水性,极好的生物降解性和优异的表面平滑性来制造可生物降解的发泡成型体的方法和模具 复杂的形状。