Manufacturing method of polypropylene resin foamed particles, identification method of polypropylene resin, and manufacturing method of polypropylene resin.

TW202639708APending Publication Date: 2026-10-01JSP INT SARL +1
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Patent Information

Application Number
TW115103172
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Priority Date
2025-01-31
Filing Date
2026-01-27
Publication Date
2026-10-01

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Abstract

The method for manufacturing polypropylene resin foam particles of the present invention includes a foaming step of foaming a polypropylene resin composition containing a base resin made of polypropylene resin and a foaming agent. The base resin is made using recycled polypropylene resin (R). The amount of polypropylene resin (R) in the base resin is 15% by mass or more. The melting point of the polypropylene resin (R) is less than 160°C. The oxidation induction temperature (T3) of the polypropylene resin (R) as determined according to ISO 11357-6:2018 is 220°C or more.
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