Methyl Methacrylate → Methyl Methacrylate

Participants

Reaction Steps

To a mixture of 250 parts of deionized water and 25 parts of the seed emulsion of Manufacturing Example 1, were added an aqueous solution of 0.1 part of ammonium persulfate and 17 parts of deionized water, and then the same procedures as stated in Manufacturing Example 14 were repeated, excepting using as the first stage pre-emulsion a mixture of 195 parts of methyl methacrylate, 100 parts of 2-ethylhexyl acrylate, 200 parts of deionized water, 0.4 part of sodium dodecylbenzene sulfonate and 0.9 part of ammonium persulfate and as the second stage monomer mixture a composition of 135 parts of methyl methacrylate, 65 parts of 2-ethylhexyl acrylate and 6 parts of n-dodecylmercaptan, to obtain an emulsion having a non-volatile content of 50.0%, average grain diameter of resinous particles being 2.8μ and the maximum diameter being 4.0μ.

Provenance & Evidence