| abstract |
A molding materail which can easily be decomposed with an alkaline solution. This material contains as a binder a thermosetting composition at least comprising an unsaturated polyester, an addition-polimerizable monomer and a shrinkage reducing agent wherein the addition-polymerizable monomer contains a monomer compatible with an alkaline solution. A monomer having an ethylene linkage and a carbonyl or sulfonyl group can be used as the addition-polymerizable monomer, and particular examples thereof include carboxylic acids, sulfonic acids, and metal salts, esters, amides and anhydrides thereof. A molded motor is disclosed which has a part integrally molded from the above molding material in such a way as to cover the iron core and the coil at least partially. |