Method for preparing UV curable coating composition

• Main Authors: GREYSON ERIC C, VOGEL ERIN B, HEGEDUS CHARLES R, LADEWSKI REBECCA L, WANG WENQIN, HEJL ANDREW
• Format: Patent
• Language: Chinese; English
• Published: 13.12.2019
• 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 method comprising the steps of: a) contacting an acrylate monomer, a carboxylic acid monomer, and a chain transfer agent under free radical polymerization conditionsto form a solution of a polymer having an Mn in the range of from 5000 to 50000 Daltons; b) contacting the solution with a base and an ethylenically unsaturated glycidyl functionalized monomer to form a solution of an ethylenically unsaturated acrylate polymer; c) contacting the solution of the ethylenically unsaturated functionalized acrylate polymer with water to form an aqueous dispersion of ethylenically unsaturated functionalized acrylate polymers; and d) removing the organic solvent. The method of the present invention provides a composition suitable for use as a UV curable coating thatachieves an excellent balance of hardness, flexibility, and warmth with less reliance on costly MFAs. 本发明涉及一种方法，其包含以下步骤：a)在自由基聚合条件下，使丙烯酸酯单体、羧酸单体和链转移剂接触以形成M在5,000至50,000道尔顿范围内的聚合物的溶液；b)使所述溶液与碱和烯键式不饱和缩水甘油基官能化单体接触以形成烯键式不饱和丙烯酸酯聚合