The affected portfolio includes materials used directly in coating formulations. Sekisui identifies Selvol polyvinyl alcohol as a cobinder and optical-brightener carrier for paper coatings, while Ultiloc copolymers support ink-receptive coatings and adhesion to difficult substrates.

Ultiloc also serves flexible-packaging barrier applications. Sekisui describes the copolymer family as extending conventional PVOH functionality through changes in adhesion, crosslinking and dissolution behavior. The materials are used in films, laminates and other structures requiring a combination of barrier properties and adhesion.

The adjustment affects polymers used in paper and functional packaging coatings, making it relevant to formulators monitoring resins and polymers and related raw-material costs.