AQUEOUS DISPERSION OF BIOLOGICALLY DEGRADABLE POLYESTERS

• Main Authors: WEBER, Karl, WÖLFLE, Heimo
• Format: Patent
• Language: English; French; German
• Published: 18.10.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; 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 OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention relates to an aqueous dispersion of a biologically degradable polyester, which is obtained by transesterification of a biologically degradable polyester with a polymer from the group of polyethylene glycols, PEO-PPO block copolymers, polyethylene glycol ethers having an aliphatic, branched or unbranched polyol with 3 to 6 C atoms and 2 to 6 OH groups, optionally in the presence of an ethylenically unsaturated dicarboxylic acid or its anhydride and/or optionally in the presence of a multivalent alcohol, and dispersion in water of the melt of the product obtained in this way.