Patent · US Active

Pet regranulate having high intrinsic viscosity and method for the production thereof

US11254797B2 · kind B2 · utility

0Cited by

1References

21Claims

0Family size

Assignee

ALPLA Werke Alwin Lehner GmbH & Co. KG · AT

Inventors

Andreas Weber · Rabenau, DE
Franz-Michael Lässer · Lochau, AT
Michael Schranz · Wien, AT

Key dates

Filing date	Dec 21, 2017
Grant date	Feb 22, 2022
Priority date	—
Expiry date	Mar 18, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/62
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a PET regranulate which, after modification of a granulated PET recyclate, has an intrinsic viscosity of at least 0.95 dl/g measured according to ASTM D 4603, preferably greater than 1.0 dl/g and particularly preferably between 1.1 dl/g and 1.7 dl/g and is suitable for the production of extrusion blow-molded containers.

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