MUMBAI, India, Nov. 21 -- Intellectual Property India has published a patent application (202517098718 A) filed by Kemira Oyj, Helsinki, on Oct. 13, for 'biowax polyhydroxyalkanoate dispersions as bio-based barrier coatings.'
Inventor(s) include Luo, Yuping; Zou, Yong; Clark, Michael; and Rosati, Louis.
The application for the patent was published on Nov. 21, under issue no. 47/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to compositions and methods for forming substantially bio-based barrier coatings suitable for application on paper and board substrates, and paper and board substrates on which are applied one or more layers of such substantially bio-based barrier coatings. The inventive bio-based barrier coatings comprise a biowax emulsion comprising one or more biowaxes, such as castor oil wax, formed by hydrogenation of a bio-based oil, such as castor oil. The barrier coating composition is formed by dispersing a biowax emulsion into a polyhydroxyalkanoate (PHA) dispersion, and may be applied as a coating e.g., on paper or board, e.g., those comprised of recycled fibers, using conventional industrial methods at ambient temperatures."
The patent application was internationally filed on Mar. 28, 2024, under International application No.PCT/US2024/021927.
Disclaimer: Curated by HT Syndication.
