| 摘要 |
<p>DISCLOSED IS A MOLDING MATERIAL WHICH CAN BE EASILY DECOMPOSED BY USING AN ALKALINE SOLUTION. THIS MOLDING MATERIAL COMPRISES, AS A BINDER, A THERMOSETTING COMPOSITION OF AN UNSATURATED POLYESTER, AN ADDITION-POLYMERIZABLE MONOMER AND A LOW SHRINK AGENT, THE ADDITION-POLYMERIZABLE MONOMER CONTAINING A MONOMER HAVING AN AFFINITY FOR ALKALINE SOLUTION. AS THE ADDITION-POLYMERIZABLE MONOMER, THERE CAN BE USED A COMPOUND HAVING AN ETHYLENE BOND AND A CARBONYL OR SULFONYL GROUP, E.G. CARBOXYLIC AND SULFONIC ACIDS, AND METAL SALTS, ESTERS AND ACID ANHYDRIDES OF THESE ACIDS. THERE IS ALSO DISCLOSED A MOLDED MOTOR COMPRISING A MOLDED PART (15) OF AN IRON CORE (14), A WINDING (13) AND THE ABOVE MOLDING MATERIAL, THE MOLDED PART BEING INTEGRALLY MOLDED SO AS TO COAT AT LEAST ONE PART OF THE IRON CORE (14) AND WINDING (13) WITH THE MOLDING MATERIAL.</p> |
