例文
- The most important aliphatic and cycloaliphatic isocyanates are 1, 6-hexamethylene diisocyanate ( HDI ), 1-isocyanato-3-isocyanatomethyl-3, 5, 5-trimethyl-cyclohexane ( isophorone diisocyanate, IPDI ), and 4, 42-diisocyanato dicyclohexylmethane, ( H 12 MDI or hydrogenated MDI ).