| 摘要 |
<p>An indicator, e.g. temperature, irradiation and/or polymerization indicator, comprising at least one 1,3-dipole and at least one dipolarophile, is new. Independent claims are also included for: (1) application form comprising the above indicator(s) which is hermetically sealed with respect to mass transfer from the outside, and is transparent or semi-transparent to enable changes or alterations in color to be perceived by an observer; (2) a food/food product comprising the above indicator(s), e.g. thermoindicator or photoindicator; (3) a composition, e.g. polymerizable dental material, containing polymerizable monomer(s), 1,3-dipole(s) or the above indicator(s), and optionally photoinitiator(s) or thermal initiator system(s); and (4) indicating the end of reaction of a polymerizable mixture, by adding 1,3-dipole to the mixture as an indicator, and indicating the end of the reaction by discoloration of 1,3-dipole.</p> |
