| abstract |
PURPOSE: To produce an aqueous resin excellent in hardness, heat stability and antiblocking property, by emulsion-polymerizing a polymerizable, ethylenically unsaturated compound in a dispersion of a specified ethylene/α,β-unsaturated carboxylic acid copolymer. n CONSTITUTION: 10W90wt% polymerizable, ethylenically unsaturated compound (e.g., styrene) is added to an aqueous dispersion containing 90W10wt% ethylene/ α,β-unsaturated carboxylic acid copolymer obtained by copolymerizing 97W 40wt% ethylene with 3W60wt% α,β-unsaturated carboxylic acid for 1W8hr in hot water at 60W200°C and neutralizing 5mol% or above acid groups of the copolymer with a base, and the resulting mixture is emulsion-polymerized in the presence of a surfactant (alkali alkylbenzenesulfonate), polymerization initiator, pH controller, etc. n COPYRIGHT: (C)1985,JPO&Japio |