| http://www.w3.org/ns/prov#value | - ng large amounts of plasticizer may be obtained by reaction of an organic polyisocyanate and a polyol, e.g. a polyester or polyether containing reactive terminal groups, such as hydroxyl, preferably a polyester, and a diamine trihydroxy compound having the formula: H (O-alkylene) (alkyleno-O yH wherein n is a whole number from 1 to 10, preferably 2 or 3, alkylene means a divalent saturated aliphat
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