Patent · US Active

Method for the production of a film comprising microfibrillated cellulose and a film comprising microfibrillated cellulose

US11155698B2 · kind B2 · utility

2Cited by

1References

9Claims

0Family size

Assignee

Stora Enso OYJ · FI

Inventors

Isto Heiskanen · Imatra, FI
Esa Saukkonen · Lappeenranta, FI
Kaj Backfolk · Lappeenranta, FI

Key dates

Filing date	Jun 27, 2017
Grant date	Oct 26, 2021
Priority date	—
Expiry date	Sep 11, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2312/00
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The present invention relates to a method for the production of a film comprising microfibrillated cellulose, wherein the method comprises the steps of; providing a suspension comprising microfibrillated cellulose, applying the suspension on a substrate to form a fibrous web, wherein the web has a first and a second side, conducting the web to a contact drying equipment wherein the first side of said web is in direct contact with of the contact drying equipment at a temperature above 100° C. whereby the web is at least partly dried forming a film. The invention also relates to a film produced according to the method.

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