| abstract |
(57) [Summary] [Structure] In the production of a high nitrile resin containing at least 50% by weight or more of an unsaturated nitrile, a mixture of aluminum sulfate and magnesium sulfate is added to a resin latex obtained by emulsion polymerization. A method for producing a high nitrile-based resin, which comprises setting the pH of the washing water to 4 to 7 with a basic substance when washing with water after coagulation. [Effect] The high nitrile resin of the present invention has almost no decrease in impact resistance due to thermoforming, excellent transparency, little yellowing of the resin, little burning, and easy cleaning of the molding machine. Have. |