| abstract |
ABSTRACT OF THE DISCLOSURE Disclosed is a process for continuously mixing two liquid components, the liquid components being a two-liquid curing type resin which comprises continuously supplying one liquid component under stirring into a mixing container and adding the other liquid component into said container by pushing open a normally closed check valve, the improvement wherein said valve is pushed open with a non-curing liquid and, thereafter, a curing liquid is added to the mixing container. According to the present invention, when, for example, a polyamide acid and a curing agent are mixed and reacted with each other, a transparent polyimide which is uniformly mixed is obtained and high quality molded articles of polyimide can therefore be provided. |