Zimmer Aktiengesellschaft

Lurgi Zimmer Gmbh

Roland Schäfer

Brigitta Otto

Holger Bachmann

Stefan Deiss

Rainer Linke

Ludwig Hölting

A method of making shaped articles from highly condensed polyester melt and especially preforms for the blow molding of food and especially beverage containers. A melt is continuously withdrawn from the polycondensation reactor and is fed to the shape-imparting units, especially a multiplicity of injection-molding machines without solidification between the final reactor and the injection molders and without degassing between the final reactor and the injection molding machines.

Method for the direct and continuous production of hollow articles from a polymer melt

Latent heat crystallized polyesters and copolyesters of a degree of crystallization greater than 38% and made by a process in which, without prior additive admixtures and without further cooling, the granulate is fed directly from the latent heat crystallization into a solid phase polycondensation reactor and condensed to a higher viscosity and subjected to acetaldehyde reduction. Alternatively without additive admixtures the granulate is subjected to dealdehydization and then worked up into bottles.

Method of producing highly condensed polyester granulate

Growing community of inventors

Alzenau, Germany

Roland Schäfer