Patent · US Expired

Method and apparatus for producing solid-state polycondensed polyesters

US7262263B2 · kind B2 · utility

5Cited by

20References

19Claims

0Family size

Inventors

Brigitta Otto · Lenzen (Elbe), DE
Hans Reitz · Rosbach, DE
Gerd Alsheimer · Maintal, DE

Key dates

Filing date	Aug 6, 2002
Grant date	Aug 28, 2007
Priority date	—
Expiry date	Aug 6, 2022

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29B2009/165
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a method for producing solid-state polycondensed polyesters by using crystallization with or without subsequent solid-state polycondensation for producing bottles, sheets, films, and high-tenacity technical filaments.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.