Multilayer film comprising highly refined cellulose fibers

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12258710
APP PUB NO 20230151545A1
SERIAL NO

17995446

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Abstract

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The present invention relates to a method for manufacturing a multilayer film comprising highly refined cellulose fibers, the method comprising the steps of: a) forming a first wet web by applying a first pulp suspension comprising highly refined cellulose fibers on a first wire; b) partially dewatering the first wet web to obtain a first partially dewatered web; c) forming a second wet web by applying a second pulp suspension comprising highly refined cellulose fibers on a second wire; d) partially dewatering the second wet web to obtain a second partially dewatered web; e) applying a binder between the first and second partially dewatered web and joining the first and second partially dewatered web to obtain a multilayer web; and f) further dewatering, and optionally drying, the multilayer web to obtain a multilayer film comprising highly refined cellulose fibers.

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Patent Owner(s)

  • STORA ENSO OYJ

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Backfolk, Kaj Lappeenranta, FI 127 614
Heiskanen, Isto Imatra, FI 141 831
Kankkunen, Jukka Imatra, FI 42 223
Lyytikäinen, Katja Imatra, FI 28 23

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