Patent · US Active

Screw elements with improved dispersing action and low energy input

US10029393B2 · kind B2 · utility

0Cited by

11References

28Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Michael Bierdel · Leverkusen, DE
Thomas König · Nuremberg, DE
Ulrich Liesenfelder · Bensberg, DE

Key dates

Filing date	May 23, 2017
Grant date	Jul 24, 2018
Priority date	—
Expiry date	May 23, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C48/03
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The present invention relates to new screw elements for multi-screw extruders with pairs of co-rotating and fully wiping screws.

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