ClassID:

126311

D21B1/16 - CPC Classification

Classification description:

Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam; Disintegrating in mills in the presence of chemical agents

Recent Application in this class:
#1
20250027270
2025-01-23

A method, uses of the same, a pulp composition, and a system

#2
20240191430
2024-06-13

METHOD OF MAKING FIRE RETARDANT MATERIALS AND RELATED PRODUCTS

#3
20220074138
2022-03-10

Method for producing softwood-derived pulp fibers for paper and softwood-derived pulp fibers for paper

#4
20210262164
2021-08-26

PROCESS FOR THE PRODUCTION OF NANO-FIBRILLAR CELLULOSE SUSPENSIONS

#5
20210054566
2021-02-25

Method for preparing unbleached biomechanical pulp from straw

#6
20200123707
2020-04-23

Method of increasing the throughput and/or decreasing energy usage of a pulping process

#7
20190248962
2019-08-15

Method for improved production of fermentable sugars from lignocellulosic biomass using additive and enzyme

#8
20190234017
2019-08-01

Process for the production of nano-fibrillar cellulose suspensions

#9
20190218711
2019-07-18

Method for simultaneously pressing and cutting a molded fiber part

#10
20190202956
2019-07-04

Method of preparing a grafted copolymer of lignin and/or cellulose

#11
20180371109
2018-12-27

Method for producing cellulose nanofiber dry solid

#12
20180347110
2018-12-06

Fiber blend having high yield and enhanced pulp performance and method for making same

#13
20180340296
2018-11-29

Die press assembly for drying and cutting molded fiber parts

#14
20160186376
2016-06-30

Method for pretreating cellulose pulp

#15
20150211184
2015-07-30

Fiber blend having high yield and enhanced pulp performance and method for making same

#16
20140374045
2014-12-25

Method for pretreating cellulose pulp

#17
20140371172
2014-12-18

Process for the production of nano-fibrillar cellulose suspensions

#18
20140083633
2014-03-27

Chemical treatment of lignocellulosic fiber bundle material, and methods and systems relating thereto

#19
20130105097
2013-05-02

Method of processing chemical pulp

#20
20130000859
2013-01-03

APPARATUS TO ENHANCE FIBER DEVELOPMENT BY ADDITION OF TREATMENT AGENT DURING MECHANICAL PULPING

#21
20120125324
2012-05-24

Continuous cellulostic pre-treatment and bio-mass processing by reactive extrusion

#22
20120118518
2012-05-17

METHOD FOR MANUFACTURING PAPERMAKING PULP

#23
20120094953
2012-04-19

Process for the production of nano-fibrillar cellulose suspensions

#24
20110303372
2011-12-15

Process for reducing specific energy demand during refining of thermomechanical and chemi-thermomechanical pulp

#25
20110036523
2011-02-17

METHOD FOR MANUFACTURING MECHANICAL PULP

#26
20100276092
2010-11-04

Method of pre-treating woodchips prior to mechanical pulping

#27
20100269993
2010-10-28

Method for improving fiber quality and process efficiency in mechanical pulping

#28
20100186911
2010-07-29

Process for increasing the refiner production rate and/or decreasing the specific energy of pulping wood

#29
20100186910
2010-07-29

Four stage alkaline peroxide mechanical pulpings

#30
20100032111
2010-02-11

Process for producing fibrous material from wood

#31
20100028089
2010-02-04

Method and apparatus for conveying a cellulosic feedstock

#32
20100024808
2010-02-04

Method and apparatus for treating a cellulosic feedstock

#33
20090288789
2009-11-26

Medium consistency refining method of pulp and system

#34
20090255639
2009-10-15

METHOD FOR MAKING A BIODEGRADABLE FIBROUS MATERIAL COMPOSITION

#35
20090211721
2009-08-27

Method and arrangement for feeding chemicals into a process stream

#36
20090151880
2009-06-18

Method and system to enhance fiber development by addition of treatment agent during mechanical pulping

#37
20090139676
2009-06-04

ASA emulsification with ultrasound

#38
20090054863
2009-02-26

Chemical activation and refining of southern pine kraft fibers

#39
20080308239
2008-12-18

FIBER BLEND HAVING HIGH YIELD AND ENHANCED PULP PERFORMANCE AND METHOD FOR MAKING SAME

#40
20080142181
2008-06-19

High defiberization chip pretreatment apparatus

#41
20080105392
2008-05-08

METHOD AND COMPOSITION FOR IMPROVING FIBER QUALITY AND PROCESS EFFICIENCY IN MECHANICAL PULPING

#42
20080105391
2008-05-08

Pulping process with high defiberization chip pretreatment

#43
20080066877
2008-03-20

High defiberization pretreatment process for mechanical refining

#44
20080011788
2008-01-17

Method and arrangement for feeding chemicals into a papermaking process

#45
20070193706
2007-08-23

Method of pre-treating woodchips prior to mechanical pulping

#46
20070169908
2007-07-26

Method and arrangement for feeding chemicals into a process stream

#47
20070137805
2007-06-21

Wet pulping system and method for producing cellulosic insulation with low ash content

#48
20070125507
2007-06-07

Process of producing high-yield pulp

#49
20070119556
2007-05-31

Chemical activation and refining of southern pine kraft fibers

#50
20070095492
2007-05-03

Manufacturing method of semichemical mechanical pulp from cornstalk

#51
20070095491
2007-05-03

Arundo donax pulp, paper products, and particle board

#52
20060204631
2006-09-14

Cellulose fiber-based filters

#53
20060144535
2006-07-06

Surface treatment with texturized microcrystalline cellulose microfibrils for improved paper and paper board

#54
20060124257
2006-06-15

Method for bleaching mechanically defibered pulp

#55
20050194110
2005-09-08

Methods for reducing fluorescence in pulp and paper

#56
20050133643
2005-06-23

Process for increasing the refiner production rate and/or decreasing the specific energy of pulping wood

#57
20050098279
2005-05-12

Method for bleaching mechanically defibered pulp

#58
20050061455
2005-03-24

Chemical activation and refining of southern pine kraft fibers

#59
20050011622
2005-01-20

High defiberization chip pretreatment

#60
20050000666
2005-01-06

Use of hemicellulase composition in mechanical pulp production

#61
17407125
2022-11-08

Method for dissolving lignocellulosic biomass