23078
Obtained results were confronted with the analogous parameter values ( kappa theor ) calculated on the basis of process stoichiometry , considering the stage of the production of isocyanate prepolymers and reaction of their extension for polyurethanes .
 Chemical: isocyanate; Chemical: polyurethanes
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: isocyanate; Chemical: polyurethanes