RESIN COMPOSITION, WATER-SWELLABLE FILM, ARTICLE COVERED WITH WATER-SWELLABLE FILM, AND METHOD FOR PRODUCING WATER-SWELLABLE FILM

• Main Authors: YAMAMOTO, Shinpei, TAKATA, Yumi, FUTAMI, Soichi
• Format: Patent
• Language: English
• Published: 24.10.2024
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; 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

The present invention relates to a resin composition comprising: a polymer (I) selected from the group consisting of a polymer (a1) containing a structural unit (i) having an ester linkage type betaine structure and a polymer (b1) containing a structural unit (ii) having a betaine structure that is not of an ester linkage type and a structural unit (iii) having a carboxyl group; an organic solvent having a Hansen solubility parameter at 25° C. in which a dispersion term δD is 10 to 24 MPa1/2, a polarity term δP is 5 to 19 MPa1/2, and a hydrogen bonding term δH is 3 to 17 MPa1/2, and having a boiling point higher than 100° C.; and water.