LINEAR POLYPROPYLENE SPECIMEN AND FOAM AND PROCESS OF PREPARING THE SAME

To provide a linear polypropylene specimen and a foam, and a process of preparing the same.SOLUTION: The present disclosure provides a process of preparing linear polypropylene foam, comprising the following steps: (a) preparing a specimen comprising at least one linear polypropylene and at least on...

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1. Verfasser: LIN CHIANG-HSIANG
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a linear polypropylene specimen and a foam, and a process of preparing the same.SOLUTION: The present disclosure provides a process of preparing linear polypropylene foam, comprising the following steps: (a) preparing a specimen comprising at least one linear polypropylene and at least one nucleating agent selected from the group consisting of α nucleating agents and β nucleating agents; (b) deforming the specimen under a deforming pressure and at a deforming temperature for a certain period of time; and (c) subjecting the deformed specimen obtained in the step (b) to a foaming process to obtain the linear polypropylene foam. The present disclosure further provides a specimen after PIF treatment and a linear polypropylene foam prepared by the above process.SELECTED DRAWING: Figure 3A 【課題】 本発明はリニアポリプロピレン試料及びフォームおよびその調製方法を提供する。【解決手段】 本開示はリニアポリプロピレンフォームの調製方法を提供し、それは次の工程を含む。(a)試料を調製し、その試料は少なくとも1種類のリニアポリプロピレン、及び少なくとも1種類の造核剤を含み、その少なくとも1種類の造核剤は、α造核剤とβ造核剤とで組成されたグループから選択する工程、(b)試料を変形圧力及び変形温度の下で一定時間変形させる工程、及び(c)工程(b)で得た変形試料に発泡処理を行い、リニアポリプロピレンフォームを取得する工程。本開示はさらにPIF処理を経た後のサンプル、及び上記の方法で調製したリニアポリプロピレンフォームも提供する。【選択図】図3A