| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject dispersion capable of giving a vinyl chloride- based polymer for paste which, in turn, is capable of giving a low-viscosity plastisol of good gellability, to provide a method for producing the dispersion, to obtain the vinyl chloridebased polymer, and to obtain gloves by using this polymer. SOLUTION: This aqueous dispersion is obtained by seeding emulsion polymerization or seeding fine suspension polymerization of a vinyl chloride-based monomer in the presence of a seed polymer. The particle size distribution representing the relationship between particle diameter and the proportion of the polymer particles having this diameter per the total particles (wt.%) has the following characteristics: (a) the graph representing the particle size distribution has only one maximum value; (b) the particle diameter corresponding to the maximum value in (a) is 0.8-1.8μm; (c) at least 98wt.% of the polymer particles in the aqueous dispersion has a diameter of 0.08-2μm; (d) 65-87wt.% of the polymer particles in the aqueous dispersion has a diameter of 0.5-2μm; and (e) 11-33wt.% of the polymer particles in the aqueous dispersion has a diameter of 0.08-0.5μm.
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