INTERNAL RELEASE AGENT, COMPOSITION INCLUDING INTERNAL RELEASE AGENT, AND PLASTIC LENS PRODUCTION METHOD USING SAID COMPOSITION

摘要

The internal release agent of the present invention contains at least one type of diester phosphate represented by general formula (1). (In the formula, R1 and R2 independently represent C1-30 hydrocarbon groups which may be substituted with at least one hydroxyl group, and R3 represents a C2-4 alkylene group. The plurality of R3 which are present may be the same or different. M represents a hydrogen atom, an ammonium ion, an alkali metal ion or a monovalent/divalent alkaline earth metal ion, and n is an integer from 1 to 60.)