Development of a heat resistant polystyrene sheet with higher recycling potential – Waste recycling at the manufacturing stage of Lunchbox bento lids –


Mitsubishi Chemical Corporation (MCC; Headquarters: Chiyoda-ku, Tokyo; Chairman: Masayuki Waga), as part of an initiative to help achieve a circular economy and the Sustainable Development Goals (SDGs), has developed a polystyrene sheet (heat resistant OPS®) with higher recycling potential, and implemented a mass production system.

OPS® is light but strong and offers excellent transparency and moldability. With these properties, it is widely used in food packaging and containers, including the lids of bento boxes. During the OPS® molding process, material scraps result from the cutting of the sheet, which is why efforts have been made by packaging manufacturers to recycle it as a raw material. However, the conventional heat-resistant OPS®, which can be used in a microwave, is difficult to re-foil because the melting and mixing of the waste materials presents problems that make it unsuitable for recycling. .

In view of customer awareness of this issue, MCC has partnered with a raw material manufacturer and jointly developed a heat resistant OPS® that can be recycled during the customer’s manufacturing process. Sampling work is already underway with several customers; some of which have even decided to use OPS®.

In accordance with KAITEKI Vision 30, the core medium and long term management strategy of the Mitsubishi Chemical Holdings Corporation (MCHC) group, MCC positions the promotion of a circular economy as a key element for the realization of KAITEKI *. MCC believes that recycling products and other materials is a key initiative in this direction. Going forward, MCC aims to contribute to the achievement of the SDGs and the achievement of a sustainable society by implementing product design that is easily recyclable by MCC as well as its customers.

“This reflects the original concept of the MCHC Group to achieve the ‘sustainable well-being of people, society and our planet Earth’.

The content is as of the date of presentation. Please note that the content can be changed later.

Disclaimer

Mitsubishi Chemical Corporation published this content on September 17, 2021 and is solely responsible for the information it contains. Distributed by Public, unedited and unmodified, on September 17, 2021 01:41:06 AM UTC.


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