| Definition: | Resin materials mainly consisting of a reactant or a polymer substance of a monomer (unsaturated polyester) containing different allyl groups or vinyl groups in an ester bond, in which are not a polymer formed by the condensation polymerization of monomers connected by an ester bond, like PET and PBT.
Monomeric drugs before being subjected to the reaction or polymerization are also known as unsaturated polyesters, but they are not included in this material class. (Mixing agents) |