Prime Polymer

Japan

Prime Polymer Co., Ltd. is a Japan-based manufacturer of polyolefin resins, established as a joint venture between Mitsui Chemicals, Inc. and Idemitsu Kosan Co., Ltd. The company develops and produces polypropylene (PP) and polyethylene (PE) materials.

Its portfolio includes homopolymer and copolymer PP, high-density and linear low-density PE, and other specialty grades used in packaging films, rigid containers, automotive components, appliances, and industrial products. Prime Polymer conducts research and process development for performance polyolefins and supplies materials to the domestic Japanese market as well as export customers.

Projects Prime Polymer is involved in

chemXplore tracks 1 project involving Prime Polymer.

Prime Polymer's role on them: Owner.

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Latest news on Prime Polymer

24 December 2025
Mitsui Chemicals, Idemitsu, Sumitomo Chemical Integrate PP and LLDPE Businesses

The integration aims to enhance competitiveness, optimize production, and achieve cost savings, while focusing on sustainable, high-performance products in Japan's shrinking PO market.

2 October 2025
Mitsui Chemicals' Biomass Evolue™ Adopted by JAL for Cargo Materials

JAL to use biomass-derived stretch film from 2025, cutting CO2 by 50 tons annually. Mass balance method boosts biomass content, aiding carbon neutrality and chemical recycling.

10 September 2025
Mitsui Chemicals, Idemitsu, and Sumitomo Chemical Plan Polyolefin Business Integration

The integration aims to boost domestic polyolefin competitiveness, optimize production, and achieve cost savings, pending regulatory approvals.

11 June 2020
Mitsui Chemicals Opens First European PP Compounding Site

The new site in the Netherlands integrates research, production, and sales, enhancing lightweighting solutions for automakers. Despite COVID-19, demand for PP compounds in auto parts is expected to grow.

14 December 2019
Mitsui Prime Advanced Composites Europe to Boost Growth with New R&D and Production Facility

The new facility in the Netherlands will enhance lightweight polypropylene production for the automotive sector, leveraging local talent, logistics, and R&D collaboration at Brightlands.

30 May 2018
Mitsui Chemicals and Prime Polymer Launch New PP Compounds Company in Netherlands

The new company will be Mitsui Chemicals’ first European base for automotive-use PP compounds, starting June 2020, to meet rising demand for lightweight materials due to stricter environmental regulations.

Where its projects are

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