Process and apparatus for modification of lignocellulosic materials and products of modified lignocellulosic materials obtained by the process

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United States of America Patent

PATENT NO 9091022
APP PUB NO 20130277000A1
SERIAL NO

13978771

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Abstract

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A process and apparatus for the preparation of a modified lignocellulosic material by

    treating the lignocellulosic material in a first activator zone having an atmosphere of one or more acid anhydrides in vapour form in a gas at a gauge pressure of 0-50 kPag and a temperature of 100-160° C., and thentreating the lignocellulosic material in a second reactor zone having an atmosphere of a gas at a gauge pressure of 0-50 kPag and a temperature of 120-190° C., thereafterstripping the lignocellulosic material with steam or water in a stripper zone, andoptionally further processing.

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Patent Owner(s)

Patent OwnerAddress
DANISH PLANT FIBRE TECHNOLOGIES HOLDING A/S4760 VORDINGBORG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eriksen, Per Berre Lundby, DK 2 6
Kyhn, Eskild Copenhagen, DK 1 0
Larsen, Peter Lundby, DK 65 1190

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