Patent · US Active

Process for the manufacture of a shaped body

US10968540B2 · kind B2 · utility

0Cited by

4References

29Claims

0Family size

Assignee

Stora Enso OYJ · FI

Inventors

Niklas Garoff · Härnösand, SE
Robert Protz · Potsdam, DE
Jens Erdmann · Michendorf, DE
Johannes Ganster · Potsdam, DE
André Lehmann · Potsdam, DE

Key dates

Filing date	Oct 6, 2016
Grant date	Apr 6, 2021
Priority date	—
Expiry date	Oct 24, 2037

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD10B2201/00
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a method for manufacturing a shaped body comprising lignin which may be further processed into intermediate carbon fibers and finally also carbon fibers. Uses of said fibers are also disclosed. The present invention addresses the problem of lignin leaching into a precipitation bath. The solution to this problem is a novel method for minimizing the loss of lignin through the addition of certain salts into the precipitation bath.

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