RAW MATERIAL FOR THE PRODUCTION OF HEAT-RESISTANT RESIN, HEAT-RESISTANT RESIN AND PROCESS FOR THE PRODUCTION OF THE RESIN

摘要

A raw material used for producing heat-resistant resins of the present invention contains N-cyclohexyl maleimide containing 0.001 to 1 weight percent of cyclohexylamino succinic anhydride, as a principal component. Heat-resistant resins and the process for producing the heat-resistant resins of the present invention are achieved by polymerizing the raw material and at least one kind of monomer which is copolymerizable with the raw material. Therefore, the heat-resistant resins produced from the raw material have excellent transparency, i.e., a low coloring factor, even when higher heat resistance is imparted to the heat-resistant resins by increasing the amount of the raw material containing N-cyclohexyl maleimide as a principal component. Thus, the heat-resistant resins are suitably used in fields requiring heat resistance as well as a low coloring factor.