Mitsubishi gas chemical develops pec resin combining marine biodegradability and hydrolysis resistance

On June 10, Mitsubishi Gas Chemical Company, Inc. announced that its long-developed biodegradable aliphatic polyester carbonate resin (hereinafter referred to as “PEC resin”) was added in May 2026 to the positive list of the “Marine Biodegradable Plastic Identification Labeling System” operated by the Japan BioPlastics Association (JBPA).

Biodegradable PEC resin

JBPA’s “Marine Biodegradable Plastic Identification Labeling System” is a certification system that evaluates the biodegradability and safety of plastic products in the marine environment. Products that comply with JBPA standards are permitted to use the name and label “Marine Biodegradable Plastic.” The system adopts a whitelist approach, under which approved plastics, additives, intermediate products, and other materials are registered.

PEC resin chemical structure

A key feature of this PEC resin is that, while being biodegradable, it is not prone to deterioration due to hydrolysis. Under appropriate storage conditions, it is expected to maintain its molecular weight and strength over the long term not only in pellet form but also in processed forms such as films, thereby helping to ensure quality stability during storage and distribution throughout the supply chain and offering advantages in handling during molding and processing.

In addition, this PEC resin combines marine biodegradability with hydrolysis resistance, and is expected to maintain stable quality in various applications involving contact with water. It also shows promise for use in products related to marine and riverine water environments.

Mitsubishi Gas Chemical will take this inclusion in the approved permit list as an opportunity to advance discussions on production systems related to the commercialization of this PEC resin and to conduct market demand research, thereby contributing to the realization of a sustainable society.