| abstract |
(57) [Summary] [Structure] The dispersant is a modified polyvinyl alcohol having an ethylene unit content of 2 to 9 mol% and a saponification degree of 95 mol% or more, and the dispersoid is a polymer of an ethylenically unsaturated monomer. And, the B type viscosity at 30 ° C. and 20 rpm is 5,000 to 30 ° C, 2r when adjusted to 10,000 mPa · S pm of B type viscosity (eta 2 rpm) and 30 ° C., the ratio of 20rpm of B type viscosity (η 20rpm) (η 2rpm / η 20rpm) is 1 to 1.8 Is an aqueous emulsion. [Effect] The aqueous emulsion of the present invention is excellent in structural viscosity (fluidity, high-speed coating property), water resistance of a film and stability at low temperature storage, and is an adhesive for paper, woodworking and plastics; impregnated paper. And binders for non-woven products; suitable for use in fields such as mortar admixtures, mortar splice materials, paints, paper processing and textile processing. |