PVA-BASED C3MS TO INHIBIT ICE RECRYSTALLIZATION AND MANUFACTURE POLYMER COATINGS THAT REDUCE ICE ADHESION

• Main Authors: VOETS, Ilja Karina, SPRONCKEN, Christian Carlo Marij
• Format: Patent
• Language: English; French
• Published: 26.09.2019
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

A material composition and method are provided to inhibit ice recrystallization or to reduce ice adhesion. The material composition is a PVA-based complex coacervate core micelles (PVA-C3Ms). Each of the PVA-C3Ms has either a block copolymer or a graft copolymer, or a combination thereof. Each PVA-C3M is defined as: (i) A-PVA+ B, (ii) B- PVA + A, or (iii) A-PVA + B-PVA, whereby A and B are oppositely charged, and whereby A is an anionic polyelectrolyte and B is a cationic polyelectrolyte. The material composition can be used as a coating, film or an additive depending on the application. L'invention concerne une composition de matériau et un procédé destinés à inhiber la recristallisation de la glace ou à réduire l'adhérence de la glace. La composition de matériau est une micelle à noyau de coacervat complexe à base de PVA (PVA-C3M). Chaque PVA-C3M comporte soit un copolymère séquencé, soit un copolymère greffé, ou une combinaison de ceux-ci. Chaque PVA-C3M est défini comme suit : (i) A-PVA+ B, (ii) B-PVA+ A, ou (iii) A-PVA + B-PVA, A et B étant chargés de manière opposée ; A représentant un polyélectrolyte anionique et B représentant un polyélectrolyte cationique. La composition de matériau peut être utilisée en tant que revêtement, film ou additif en fonction de l'application.