Method of manufacturing skin-coated expanded molded form of polystyrene-based resin and skin-coated expanded molded form of polystyrene-based resin

表皮被覆ポリスチレン系樹脂発泡成形体の製造方法および表皮被覆ポリスチレン系樹脂発泡成形体

Abstract

【課題】ブロー成形された中空成形体内に発泡粒子を充填し、発泡粒子相互を融着させて発泡粒子成形体とし、中空成形体からなる表皮の内面と発泡粒子成形体とが融着一体化し、発泡粒子相互の融着性、ならびに成形体外観に優れた表皮被覆ポリスチレン系樹脂発泡粒子成形体の提供。 【解決手段】ブロー成形法により中空成形体内に発泡粒子を充填し、表皮で被覆された発泡粒子成形体の製造方法において、ブロー成形型の型締め時の金型1温度を[中空成形体基材樹脂のガラス転移温度−30℃]〜[中空成形体基材樹脂のガラス転移温度+30℃]の温度とし、中空成形体内に挿入した複数のスチーム供給排出ピン22の一方をスチーム供給側とし他方をスチーム排出側とし、スチーム供給側のピン21のスチーム供給口におけるスチーム温度T1を[発泡粒子基材樹脂のガラス転移温度+10℃]〜[発泡粒子基材樹脂のガラス転移温度+30℃]に制御して加熱する。 【選択図】図1
<P>PROBLEM TO BE SOLVED: To provide a skin-coated expanded particle molded form of polystyrene-based resin which undergoes such procedures as filling the interior of a blow-molded hollow molded form with an expanded particle, then, making an expanded particle molded form by fusion-bonding the expanded particles mutually and thus, fusion-bonding the inner surface of the skin consisting of the hollow molded form and the expanded particle molded form into one piece. <P>SOLUTION: This method is to manufacture the expanded particle molded form which is coated with a skin, by filling the interior of the hollow molded form with the expanded particle using a blow molding process. The temperature of a mold 1 during clamping a blow molding die is set to [glass transition temperature of hollow molded form base resin-30°C] to [glass transition temperature of hollow molded form base resin+30°C]. Further, one of a plurality of steam supply/discharge pins 22 which are inserted in the hollow molded form, is given as a steam supply side and the other as a steam discharge side. The mold 1 is heated by controlling the steam temperature T1 of the steam supply port of the steam supply-side pin 21 to [glass transition temperature of expanded particle base resin+10°C] to [glass transition temperature of expanded particle base resin+30°C]. <P>COPYRIGHT: (C)2010,JPO&INPIT

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    JP-H06339979-ADecember 13, 1994Aron Kasei Co Ltd, Mitsubishi Yuka Badische Co Ltd, Sanko Sogyo Kk, アロン化成株式会社, 三光総業株式会社, 三菱油化バーディッシェ株式会社Method for molding foamed body having skin
    JP-H1016036-AJanuary 20, 1998Ube Ind Ltd, 宇部興産株式会社Blow molding and blow molded piece

NO-Patent Citations (0)

    Title

Cited By (4)

    Publication numberPublication dateAssigneeTitle
    EP-2830861-A4June 08, 2016Richard W Roberts JrRecyclable plastic structural articles and method of manufacture
    EP-2889119-A1July 01, 2015Jsp CorporationVerfahren zur Herstellung eines hautbedeckten, aufgeschäumten Formartikels
    JP-2013223974-AOctober 31, 2013Jsp Corp, 株式会社ジェイエスピー表皮被覆発泡成形体の製造方法
    US-2015273801-A1October 01, 2015Jsp CorporationSkin-covered foamed molded article and energy absorbing member