| prov:value
| - Suitable polyisocynates include, for example, aromatic polyisocyanates containing 6-20 carbon atoms excluding the ???NCO groups, such as o-, m- and p-phenylene diisocyanates (PDI), 2,4- and 2,6-tolulene d-socyanates (TDI), diphenylmethane-2,4??? and 4,4???-diisocyanates, diphenylmethane 2-4???- and 4,4???-diisocyanates (MDI), naphthalene-1,5-diisocyanate, triphenylmethane 4,4???,4???-trilsocyanate
|