prov:value
| - diisocyanate, 2,6-toluene diisocyanate, para-phenylene diisocyanate or mixtures thereof, chains extended with a diol such as 1,4-butanediol, a dithiol such as 1,4-butanedithiol, a thio-substituted alcohol, such as 1-thiolbutane-4-ol, or mixtures thereof.
|