Patent · US Active

Process for the production of a microfibrillated cellulose composition

US10648130B2 · kind B2 · utility

0Cited by

1References

12Claims

0Family size

Assignee

Solenis Technologies, L.P. · CH

Inventors

Hubertus Kroener · Ludwigshafen, DE
Paul Achatz · Mannheim, DE
Philipp Kloke · Mannheim, DE

Key dates

Filing date	May 27, 2014
Grant date	May 12, 2020
Priority date	—
Expiry date	Aug 8, 2036

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21H21/52
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a process for the production of microfibrillated cellulose composition, wherein the microfibrillated cellulose has an average fiber length in the range from 500 to 1300 μm and a percentage of fiber length in the category ≤200 μm of at least 15%, obtained by subjecting an aqueous mixture comprising 30 to 70% by weight of cellulose containing fibers to mechanical shearing at a temperature in the range of from ≥40° C. to ≤120° C. in the presence of at least one thermostable biocide, to the microfibrillated cellulose composition obtained in this process and their use in a process for production of paper, card and board comprising draining a paper stock comprising the microfibrillated cellulose composition with sheet formation in the wire.

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