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Title: Method of making medium density fiberboard

Abstract

The present invention provides a method for producing an MDF board from pulp from a fibrous lignocellulose material using a treatment or pretreatment step which exposes the material to oxalic acid or oxalic acid derivatives (particularly dialkyl ester derivatives, particularly in the vapor phase). The treated wood is then subjected to a sugar extraction wash and refined using any one of the several pulping methods to produce a final pulp product. Once this is done the pulp is used to make MDF boards having improved water repellency properties.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Wisconsin Alumni Research Foundation, Madison, WI (United States); Biopulping International Inc., Madison, WI (United States); United States Dept. of Agriculture, Washington, DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531723
Patent Number(s):
8123904
Application Number:
12/854,574
Assignee:
Wisconsin Alumni Research Foundation (Madison, WI); Biopulping International, Inc. (Madison, WI); The United States of America as represented by the Secretary of Agriculture (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
D - TEXTILES D21 - PAPER-MAKING D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS
DOE Contract Number:  
FG45-02R530539; R530539
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010-08-11
Country of Publication:
United States
Language:
English

Citation Formats

Akhtar, Masood, Kenealy, William R., Horn, Eric G., Swaney, Ross E., and Winandy, Jerrold. Method of making medium density fiberboard. United States: N. p., 2012. Web.
Akhtar, Masood, Kenealy, William R., Horn, Eric G., Swaney, Ross E., & Winandy, Jerrold. Method of making medium density fiberboard. United States.
Akhtar, Masood, Kenealy, William R., Horn, Eric G., Swaney, Ross E., and Winandy, Jerrold. Tue . "Method of making medium density fiberboard". United States. https://www.osti.gov/servlets/purl/1531723.
@article{osti_1531723,
title = {Method of making medium density fiberboard},
author = {Akhtar, Masood and Kenealy, William R. and Horn, Eric G. and Swaney, Ross E. and Winandy, Jerrold},
abstractNote = {The present invention provides a method for producing an MDF board from pulp from a fibrous lignocellulose material using a treatment or pretreatment step which exposes the material to oxalic acid or oxalic acid derivatives (particularly dialkyl ester derivatives, particularly in the vapor phase). The treated wood is then subjected to a sugar extraction wash and refined using any one of the several pulping methods to produce a final pulp product. Once this is done the pulp is used to make MDF boards having improved water repellency properties.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {2}
}

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Works referenced in this record:

Method for producing pulp
patent, December 2007


Eucalyptus biomechanical pulping process
patent, March 2006


    Works referencing / citing this record: