Process for the manufacture of poly-epsilon-caprolactones and poly- epsilon-caprolactones which have high molecular masses obtainable by this process

摘要

The poly-&egr;-caprolactones are manufactured by continuous polymerization of &egr;-caprolactone as a melt in an extruder (reactive extrusion) with the involvement of a polymerization initiator chosen from aluminum alkoxides. The appropriate adjustment of the extruder feed rates of &egr;-caprolactone and of aluminum alkoxide allows the customized manufacture of poly-&egr;-caprolactones which have high and preestablished weight-average molecular masses.P PPoly- &egr;-caprolactones obtainabled by the process are characterized by weight-average molecular masses (M.sub.w) equal to at least approximately 95,000 g/mol and M.sub.w /M.sub.n ratios of at least approximately 2.