ClassID:

126937

D21H17/70 - CPC Classification

Classification description:

Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution; Inorganic compounds forming new compounds , e.g. within the pulp or paper, by chemical reaction with other substances added separately

Recent Application in this class:
#1
20250215643
2025-07-03

COMPOSITE FIBERS AND METHODS OF MAKING THE SAME

#2
20230228036
2023-07-20

SURFACE MINERALIZED ORGANIC FIBERS AND METHODS OF MAKING THE SAME

#3
20220290373
2022-09-15

COMPLEX FIBERS OF CELLULOSE FIBERS WITH INORGANIC PARTICLES AND PROCESSES FOR PREPARING THEM

#4
20210338547
2021-11-04

COMPLEXES OF HYDROTALCITES AND FIBERS

#5
20210324583
2021-10-21

METHOD FOR ANALYZING STRUCTURES COMPRISING A FIBER AND INORGANIC PARTICLES

#6
20210148053
2021-05-20

Hydrolytic sheet and method for manufacturing hydrolytic sheet

#7
20210140113
2021-05-13

Papermaking system and method

#8
20210102341
2021-04-08

METHOD FOR PRODUCING INORGANIC PARTICLE COMPOSITE FIBERS

#9
20200048839
2020-02-13

Composition which contains composite fibers composed of inorganic particles and fibers

#10
20190368121
2019-12-05

METHOD FOR PRODUCING COMPOSITE BODY OF FIBERS AND INORGANIC PARTICLES, AND LAMINATE CONTAINING COMPOSITE BODY OF FIBERS AND INORGANIC PARTICLES

#11
20190282472
2019-09-19

Complexes of hydrotalcites and fibers

#12
20190264394
2019-08-29

Method to form a web comprising fibers

#13
20190245214
2019-08-08

Method for producing roll-type gas diffusion layer having excellent spreading property

#14
20190211508
2019-07-11

Paper Processing Composition and Process of Production

#15
20190047872
2019-02-14

Complexes of magnesium carbonate microparticles and fibers as well as processes for preparing them

#16
20190003125
2019-01-03

Sizing method for making paper and paper prepared thereof

#17
20180346333
2018-12-06

Complexes of calcium phosphate microparticles and fibers as well as processes for preparing them

#18
20180258587
2018-09-13

Method of reducing waste sludge using acid treatment and method of carbonating carbon dioxide with high purity using paper mill waste sludge

#19
20180127284
2018-05-10

Process for increasing opacity of precipitated calcium carbonate

#20
20180112360
2018-04-26

Method of producing filler

#21
20180098672
2018-04-12

Household tissue paper and hydrolysable sheet

#22
20170306565
2017-10-26

Composition for sizing paper

#23
20170067208
2017-03-09

Method of making a thermoplastic fiber composite material and web

#24
20160355983
2016-12-08

METHOD FOR PRODUCING WATER-DISINTEGRABLE PAPER

#25
20160186382
2016-06-30

METHOD AND APPARATUS FOR THE MANUFACTURING OF COMPOSITE MATERIAL

#26
20160168798
2016-06-16

Method of producing a creping paper and the creping paper thereof

#27
20160060813
2016-03-03

Method of providing fiber web making furnish with filler, and paper or paper board

#28
20150315748
2015-11-05

Ply for a board from an in-line production process

#29
20150292159
2015-10-15

In-line production method for paper making process

#30
20150176210
2015-06-25

Additives for papermaking

#31
20140124156
2014-05-08

Printing paper product, as well as a method and a system for manufacturing a printing paper product

#32
20140027078
2014-01-30

Paper that cannot be forged using solvents

#33
20130312925
2013-11-28

Manufacture and use of a composite structure containing precipitated carbonate

#34
20130112360
2013-05-09

Process for manufacturing paper or board

#35
20130062030
2013-03-14

Method for producing calcium carbonate during formation of a fibrous web

#36
20130045392
2013-02-21

METHOD FOR PREPARING HYDROPHOBIZED BIOMATERIALS, HYDROPHOBIZED BIOMATERIALS AS OBTAINED AND USES THEREOF

#37
20130000858
2013-01-03

Method and a reactor for mixing one or more chemicals into a process liquid flow

#38
20120273149
2012-11-01

Method and apparatus for pre-treatment of fibre material to be used in the manufacture of paper, board or the like

#39
20120267584
2012-10-25

Precipitated magnesium carbonate

#40
20120149006
2012-06-14

Cellulose substrates, compositions and methods for storage and analysis of biological materials

#41
20120055642
2012-03-08

IMPROVING THE STRENGTH OF PAPER AND BOARD PRODUCTS

#42
20110290150
2011-12-01

COMPOSITION FOR SIZING PAPER

#43
20110186252
2011-08-04

ENGINEERED COMPOSITE PRODUCT AND METHOD OF MAKING THE SAME

#44
20110132560
2011-06-09

GYPSUM PRODUCT

#45
20110011548
2011-01-20

Method of and an arrangement for proportioning thick stock to a short circulation of fiber web machine

#46
20110000633
2011-01-06

Method for crystallizing a filler in connection with a fiber web process, and an approach system for a fiber web machine

#47
20100212853
2010-08-26

Fiber loading improvements in papermaking

#48
20100006246
2010-01-14

Process for increasing bulk of a fiber product, fiber product and use thereof

#49
20090294082
2009-12-03

Prevention of bacterial spore formation in a broke system of a board machine

#50
20090229772
2009-09-17

Bleached, mechanical paper pulp and the production method therefor

#51
20090114356
2009-05-07

Method of Producing a Fibrous Web

#52
20090056888
2009-03-05

PROCESS FOR LOADING A FIBROUS SLURRY WITH FILLER

#53
20080264586
2008-10-30

Treatment of Pulp

#54
20080210391
2008-09-04

METHOD FOR LOADING FIBERS CONTAINED IN A PULP SUSPENSION

#55
20080023161
2008-01-31

METHOD AND APPARATUS FOR LOADING FIBERS OR CELLULOSE WHICH ARE CONTAINED IN A SUSPENSION WITH A FILLER

#56
20070272376
2007-11-29

Method and apparatus for pre-treatment of fibre material to be used in the manufacture of paper, board or the like

#57
20070151681
2007-07-05

METHOD AND DEVICE FOR LOADING A FIBROUS STOCK SUSPENSION

#58
20070148078
2007-06-28

Method and system for growing larger precipitated calcium carbonate crystals

#59
20070131361
2007-06-14

Method for charging a fiber suspension, and arrangement for carrying out said method

#60
20070131360
2007-06-14

Method for manufacturing paper and paper

#61
20070119561
2007-05-31

METHOD AND APPARATUS OF THE PREPARTION OF A FIBROUS STOCK SUSPENSION

#62
20070107860
2007-05-17

METHOD AND MACHINE FOR PRODUCING A FIBROUS WEB

#63
20070068640
2007-03-29

METHOD FOR LOADING A FIBROUS STOCK SUSPENSION AND ARRANGEMENT TO IMPLEMENT THE METHOD.

#64
20070025904
2007-02-01

Preparation of a composition comprising an alkaline earth metal oxide and a substrate having a reduced amount of grit

#65
20060260775
2006-11-23

Method to manufacture paper

#66
20060113051
2006-06-01

Method for creating a fibrous substance suspension used for producing a tissue web or hygiene web

#67
20060060318
2006-03-23

Method for manufacturing paper and board

#68
20050121157
2005-06-09

Method for the fabrication of a fiber web

#69
20050045288
2005-03-03

Bleached, mechanical paper pulp and the production method therefor

#70
20050016418
2005-01-27

Binder systems derived from amorphous silica and bases

#71
20050000665
2005-01-06

Method for preparing fibers contained in a pulp suspension