Kemira and Shanghai Bluepha Microbiology Technology Co., Ltd. ("Bluepha"), a leading synthetic biotech company, have agreed on a three-year strategic collaboration to promote the large-scale application of PHA (polyhydroxyalkanoate) in fully biobased barrier coatings for paper, board and molded fiber, contributing to a move towards sustainable packaging and the elimination of plastic waste.
Through the partnership, Kemira and Bluepha will systematically introduce PHA materials into barrier coatings for paper - such as food packaging, paper labels, board and molded fiber applications, accelerating the transfer of the traditional paper industry towards a lower-carbon and sustainable future.
PHA-based aqueous barrier coatings are heat sealable and offer an excellent oil, water and grease barrier. Additional benefits include repulpability, which enables the paper to be recycled without special equipment for full fiber recovery. These attributes further enhance the sustainability of the material and enable brands to provide products that contribute to a circular economy and reduce the impact of plastic waste on the environment.
PHA barrier coatings are biodegradable in various environments including marine, freshwater, and soil. The PHA coatings can replace polyethylene and provide a viable alternative to per- and polyfluoroalkyl substances (PFAS).
Kemira is a global leader in sustainable chemical solutions.
