abstract |
PROBLEM TO BE SOLVED: To provide a method for producing a thermoplastic resin which is useful as an optical material and has a low saturated water absorption rate. 2,2'-Bis (1-hydroxyalkoxy) -1,1'-binaphthalene (where 2- (1-hydroxyethoxy) -2'-(1-hydroxyethoxyethoxy) -1,1'- The total content of binaphthalene, 2- (1-hydroxyethoxy) -2'-hydroxy-1,1'-binaphthalene, and 2,2'-bis-hydroxy-1,1'-binaphthalene is 1500 ppm or less) It is a method for producing a thermoplastic resin characterized by reacting a reactant containing the above. [Selection diagram] None |