METHOD FOR EVALUATING EXPANSION OR CONTRACTION OVER TIME OF CURABLE COMPOSITION DUE TO CURING, COATING MEMBER, METHOD FOR DESIGNING CURING CONDITIONS FOR CURABLE COMPOSITION, AND METHOD FOR DESIGNING CURABLE COMPOSITION

摘要

Provided is a method capable of accurately evaluating the expansion or contraction of a curable composition due to curing.　The present invention relates to a method for evaluating the expansion or contraction over time of a curable composition due to curing, the method comprising: a measuring step in which while curing a curable composition which is received in a receiving member and has a surface on which the coating member is arranged, the coating member is continuously irradiated with laser light from a laser light source to continuously measure the position of the coating member on the basis of reflected light of the laser light; and an evaluation step in which an expansion or contraction over time of a curable composition due to the curing is evaluated from the transition of the position measured in the measurement step, wherein the coating member has a reflectance for laser light of at least 50%, and a mass of at most 10 mg.