| 摘要 |
<p>A storage stable one package heat curable polyurethane adhesive compsn. comprises (a) a mixt. of or a prepolymer adduct of (i) a polyaliphatic isocyante cpd. of formula (I) R, R' independently = H, opt. substd. alkyl; X = (cyclo)aliphatic or aromatic gp. or a prepolymer adduct of (I) possessing polyaliphatic NCO functionality; and (ii) a monomeric or polymeric cpd. contg. a no. of OH gps., (ii) being added in an amt. so as to provide less than a stoichiometrically equiv. amt. OH gps. to aliphatic NCO gps.in (a), in admixt. with (b) a curing agent comprising a mono or polymeric cpd. (0/0)</p> |
