<p>A method for preparing biodegradable polyurethanes includes contacting a flowable quasi-prepolymer including free aliphatic polyisocyanate compounds with a polyester polyol hardener having a functionality of at least two to form a reactive liquid mixture. The quasi-prepolymer can, for example, be formed by contacting a polyisocyanate component comprising at least one aliphatic polyisocyanate compound with a polyol component comprising at least one polyol compound to form an adduct of the polyisocyanate component and the polyol component wherein a sufficient excess of the polyisocyanate component is used to form the quasi-prepolymer.</p>
申请公布号
WO2007123536(A1)
申请公布日期
2007.11.01
申请号
WO2006US15485
申请日期
2006.04.24
申请人
CARNEGIE MELLON UNIVERSITY;GUELCHER, SCOTT, A.;DIDIER, JONATHAN, E.;HOLLINGER, JEFFREY, O.
发明人
GUELCHER, SCOTT, A.;DIDIER, JONATHAN, E.;HOLLINGER, JEFFREY, O.