| 摘要 |
<p>A pasty molding compound, which is reactive only above room temperature and is intended for manufacturing temperature-resistant, elasticized duromer molded components, consists of a dimerized trimethylol propane (melting point 109 DEG C., molecular weight 250, OH number 900) and of 1 to 625 parts by weight (per 100 parts of methylene diphenyldiisocyanate) of low-molecular weight and an isocyanate-limited polyesterpolyol-diisocyanate-prepolymer, prepared from polycaprolactone and an isomeric mixture of the toluenediisocyanate. This masterbatch, which has an NCO excess of up to 15% over the equivalent quantity of the free OH components can be fortified with fillers and is moldable at low pressures. Furthermore, its application as an impregnating agent for glass-fiber mats to be molded is provided.</p> |
| 申请人 |
FA. CARL FREUDENBERG, 6940 WEINHEIM, DE |
发明人 |
MUEHLFELD, HORST, 6149 GRASELLENBACH, DE;SCHUHMACHER, GUENTER, DR., 6940 WEINHEIM, DE;HILLER, MICHAEL, DR., 6943 BIRKENAU, DE;SCHLOER, GEORG, DIPL.-ING., 6941 ABTSTEINACH, DE |
