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Class Information
Number: 162/22
Name: Paper making and fiber liberation > Processes of chemical liberation, recovery or purification of natural cellulose or fibrous material > Defibration by projection or explosion > With chemical other than water or steam
Description: Processes in which the fibrous material is treated with a chemical agent other than water or steam usually to facilitate the liberation or purification of the fibrous material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7510625 |
Device and method of using explosive forces in a contained environment |
Mar. 31, 2009 |
| 6837971 |
Device and method of using explosive forces in a contained liquid environment |
Jan. 4, 2005 |
| 6623600 |
Method of performing an impregnating or extracting treatment on a resin-containing wood substrate |
Sep. 23, 2003 |
| 6416621 |
Apparatus, process and pressure reactor for the treatment of solids with pressurized liquid gases |
Jul. 9, 2002 |
| 6336992 |
Method and apparatus for wetting fibrous material |
Jan. 8, 2002 |
| 6228213 |
Production of microcrystalline cellulose by reactive extrusion |
May. 8, 2001 |
| 6176970 |
Device and method of using explosive forces in a contained liquid environment |
Jan. 23, 2001 |
| 5718802 |
Process for obtaining cellulosic fiber bundles at least 2.5 cm long from plant stalk rind |
Feb. 17, 1998 |
| 5262004 |
Method of extracting chemical preservatives from treated wood |
Nov. 16, 1993 |
| 5198074 |
Process to produce a high quality paper product and an ethanol product from bamboo |
Mar. 30, 1993 |
| 4857145 |
Process for making a pulp from bamboo |
Aug. 15, 1989 |
| 4798651 |
Process for preparing pulp for paper making |
Jan. 17, 1989 |
| 4699691 |
Thermomechanical digestion process |
Oct. 13, 1987 |
| 4689117 |
Thermomechanical digestion process for enhancing the brightness of cellulose pulp using bleachants |
Aug. 25, 1987 |
| 4645541 |
Method of producing level off DP microcrystallinecellulose and glucose from lignocellulosic material |
Feb. 24, 1987 |
| 4600545 |
Process for the preparation of fibers from polymeric materials |
Jul. 15, 1986 |
| 4540467 |
Method for fragmenting municipal solid wastes |
Sep. 10, 1985 |
| 4461648 |
Method for increasing the accessibility of cellulose in lignocellulosic materials, particularly hardwoods agricultural residues and the like |
Jul. 24, 1984 |
| 4295925 |
Treating pulp with oxygen |
Oct. 20, 1981 |
| 4235707 |
Method and apparatus for treating solid municipal refuse and other cellulose containing material |
Nov. 25, 1980 |
| 4163687 |
Method and apparatus for explosively defibrating cellulosic fiber |
Aug. 7, 1979 |
| 4093507 |
Method of liquid treating cellulose fibres with elastic pressure shocks |
Jun. 6, 1978 |
| 4000032 |
Process of freeing cellulose fibers from lignocellulosic material by irradiation |
Dec. 28, 1976 |
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