MANUFACTURING METHOD OF FOAM MOLDING BODY

To provide a manufacturing method of a foam molding body in which generation of blister is prevented and has good appearance without deteriorating work circumstance.SOLUTION: A manufacturing method of a foam molding body includes: a step (1) melting, mixing and kneading a resin composition containin...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	KAWAMURA TATSUJI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	To provide a manufacturing method of a foam molding body in which generation of blister is prevented and has good appearance without deteriorating work circumstance.SOLUTION: A manufacturing method of a foam molding body includes: a step (1) melting, mixing and kneading a resin composition containing 100 pts.mass of polypropylene-based resin and 0.5-5.0 pts.mass of blowing agent generating carbon dioxide and containing no hydrogen carbonate at a temperature more than 10°C higher than the gasification temperature of the blowing agent; and a step (2) foam molding the resin composition melted, mixed and kneaded in the step (1) by ejecting to a die.SELECTED DRAWING: None 【課題】ブリスタの発生が抑制された外観良好な発泡成形体を、作業環境を悪化させることなく製造する方法を提供すること。【解決手段】本発明の発泡成形体の製造方法は、ポリプロピレン系樹脂１００質量部と、二酸化炭素を発生し、炭酸水素塩を含まない発泡剤０．５〜５．０質量部とを含む樹脂組成物を、前記発泡剤のガス発生温度より１０℃以上高い温度で溶融混錬する工程（１）と、前記工程（１）で溶融混錬した樹脂組成物を金型に射出して発泡成形する工程（２）とを含むことを特徴とする。【選択図】なし