POLYMERS, PROCESS FOR THEIR PRODUCTION AND POLYURETHANE DERIVABLE FROM THESE POLYMERS
摘要
Pourable polymers having desirable properties are obtained by co-polymerising (a) a lactone or corresponding aliphatic hydroxyacid, (b) cyclic dimeric ester of an alpha -hydroxyacid or the corresponding alpha -hydroxyacid, in which the mole ratio of (a) to (b) is greater than 1.5:1 and their viscosity is less than 2000cps. The polymers can further be reacted with isocyanates to form polyurethanes having desirable properties.
申请公布号
WO0026273(A1)
申请公布日期
2000.05.11
申请号
WO1999EP08142
申请日期
1999.10.21
申请人
SOLVAY (SOCIETE ANONYME);WASSON, ROBERT, C.;DUTTON, AMANDA, J.;DERBYSHIRE, STEWART
发明人
WASSON, ROBERT, C.;DUTTON, AMANDA, J.;DERBYSHIRE, STEWART