ClassID:

127033

D21H23/22 - CPC Classification

Classification description:

Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added Addition to the formed paper

Sub-classes:
Recent Application in this class:
#1
20260033530
2026-02-05

PAPER ELEMENT FOR PACKAGING USE, IN PARTICULAR A CIGARETTE PAPER

#2
20260008919
2026-01-08

RESIN COMPOSITION, FILM, LAMINATE, AND METHODS FOR PRODUCING THE FILM AND LAMINATE

#3
20240401279
2024-12-05

SURFACE SIZING AGENT FOR PAPER AND/OR CARDBOARD

#4
20240352676
2024-10-24

FIBER WEB PRODUCT AND MANUFACTURING METHOD OF THE SAME

#5
20240318384
2024-09-26

HPMC COMPOSITION FOR COATING OF PAPER AND BOARD FOR REDUCING MIGRATION OF MINERAL OIL HYDROCARBONS (MOH)

#6
20240263399
2024-08-08

BIOBASED BARRIER FILM FOR PACKAGING MATERIAL

#7
20240218602
2024-07-04

BARRIER LAYER FOR CELLULOSE SUBSTRATE

#8
20240200272
2024-06-20

MULTILAYER MATERIAL WHICH CAN BE USED AS PACKAGING, COMPRISING A LAYER OF CELLULOSIC MATERIAL AND A LAYER OF MATERIAL COMPRISING AT LEAST ONE CASEIN AND/OR AT LEAST ONE CASEINATE

#9
20240102248
2024-03-28

USE OF NON-HALOGEN FIRE RETARDANT COMPOSITION FOR INDIRECT FIRE PROTECTION LAYERS ON SUBSTRATES

#10
20240006593
2024-01-04

PAPER BASED MATERIALS FOR THE STORAGE OF ELECTRICAL ENERGY

#11
20230122933
2023-04-20

USE OF A CELLULOSE DERIVATIVE AND METHOD FOR SURFACE SIZING

#12
20220195671
2022-06-23

Paperboard structure with at least one barrier coating layer

#13
20210047783
2021-02-18

Paper treatment agent

#14
20200262608
2020-08-20

CONTAINER WITH HIGH MOISTURE BARRIER PROPERTIES AND A RECLOSEABLE POUR SPOUT

#15
20200217015
2020-07-09

Composition comprising cross-linked anionic, organic polymeric microparticles, its preparation and use in paper and paperboard making processes

#16
20200149223
2020-05-14

Softener composition

#17
20200080263
2020-03-12

Pigment-coated board having improved PE adhesion

#18
20200063370
2020-02-27

Sheet with high sizing acceptance

#19
20200040529
2020-02-06

FIBROUS STRUCTURES COMPRISING VOLATILE AGAVE COMPOUNDS

#20
20190309479
2019-10-10

PAPER SUBSTRATE HAVING ENHANCED PRINT DENSITY

#21
20190309478
2019-10-10

PAPER SUBSTRATE HAVING ENHANCED PRINT DENSITY

#22
20190257034
2019-08-22

Paperboard structure with at least one barrier coating layer

#23
20190226149
2019-07-25

Dispersible wet wipes constructed with patterned binder

#24
20180251945
2018-09-06

Core/shell polymer particles as surface sizing agents

#25
20180179708
2018-06-28

Method for hydrophobing a cellulose substrate

#26
20180125114
2018-05-10

Wrapping paper having transparent regions

#27
20180105987
2018-04-19

Softener composition

#28
20180072915
2018-03-15

Wet coating compositions for paper substrates, paper substrates coated with the same and process for coating a paper substrate with the same

#29
20180051416
2018-02-22

Method for producing paper

#30
20180030657
2018-02-01

Water based wax dispersion comprising a hydrocarbon wax and a dialkylether for coating paper products

#31
20180023252
2018-01-25

Starch amine complexes for increased water resistance of paper

#32
20180014986
2018-01-18

Absorbent article and method of manufacturing the same

#33
20170361573
2017-12-21

Intermediate laminate product, an expanded laminate structure, and process manufacturing thereof

#34
20170284028
2017-10-05

Sizing composition, its use and a method for producing paper, board or the like

#35
20170268175
2017-09-21

Paper composite, packaging material, and production method of paper composite

#36
20170241080
2017-08-24

Method for the Continuous Coating of a Cellulose-Based Fibrous Substrate Web with Fatty Acid Chloride

#37
20170183823
2017-06-29

PAPER SUBSTRATE HAVING ENHANCED PRINT DENSITY

#38
20170166350
2017-06-15

CONTAINER WITH HIGH MOISTURE BARRIER PROPERTIES AND A RECLOSABLE POUR SPOUT

#39
20170145637
2017-05-25

PAPER SUBSTRATE HAVING ENHANCED PRINT DENSITY

#40
20170107402
2017-04-20

Wet coating compositions for paper substrates, paper substrates coated with the same and process for coating a paper substrate with the same

#41
20170106620
2017-04-20

Fire retarded aramid fiber-based honeycomb

#42
20170037578
2017-02-09

Separated treatment of paper substrate with multivalent metal salts and OBAs

#43
20160312410
2016-10-27

Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process

#44
20160304818
2016-10-20

LATHER-FORMING TISSUE PAPER PRODUCT

#45
20160284518
2016-09-29

Ways to generate plasma in continuous power mode for low pressure plasma processes

#46
20160258113
2016-09-08

Lignin-based waterproof coating

#47
20160222592
2016-08-04

PACKAGING MATERIAL HAVING A BARRIER COATING BASED ON STARCH, AND COATING MASS, METHOD, AND DEVICE FOR PRODUCING SUCH A BARRIER COATING

#48
20160215455
2016-07-28

Dispersion for producing abrasion-resistant surfaces

#49
20160208107
2016-07-21

Compositions for Causing, Enhancing, and/or Expediting Oxo-Biodegradation of Articles and Methods of Production and Use Thereof

#50
20160176989
2016-06-23

Method of modifying nanofibrillar cellulose composition

#51
20160160443
2016-06-09

Web of cellulosic fibers comprising an active agent and method for manufacturing a web of cellulosic fibers comprising an active agent

#52
20160010281
2016-01-14

Coextrusion paper coating method forming multilayer comprising biodegradable polyester and polylactic acid

#53
20150164701
2015-06-18

Method of applying bulk glue for nursing pad base film to four corners of sanitary product nursing pad base film and device therefor

#54
20150144282
2015-05-28

Method for increasing paper strength

#55
20150125711
2015-05-07

Polymer Latex Blends and Applications Thereof

#56
20150101528
2015-04-16

APPARATUS AND METHOD FOR TREATING MATERIALS WITH COMPOSITIONS

#57
20150086803
2015-03-26

Modified phenolic resins for making composite products

#58
20150072089
2015-03-12

Recording material

#59
20150041088
2015-02-12

Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process

#60
20150020985
2015-01-22

Wet strength treated paper and paperboard

#61
20140367456
2014-12-18

POLYOLEFIN AND CELLULOSE LAMINATE FOR FOOD AND BEVERAGE CONTAINERS

#62
20140322543
2014-10-30

Fluorochemical composition and use thereof

#63
20140224442
2014-08-14

Method and apparatus for manufacturing coated paper

#64
20140144454
2014-05-29

Composition for coating a paper wrapper for smoking articles

#65
20140060426
2014-03-06

Stabilized high flow doctor blade head for transfer roller

#66
20130292078
2013-11-07

Process for inkjet paper and paper produced thereby

#67
20130242292
2013-09-19

Inspection system for coated paper

#68
20130189457
2013-07-25

SEPARATED TREATMENT OF PAPER SUBSTRATE WITH MULTIVALENT METAL SALTS AND OBAs

#69
20130040159
2013-02-14

PAPER SUBSTRATE HAVING ENHANCED PRINT DENSITY

#70
20130011546
2013-01-10

Machine and method of manufacturing low ignition propensity paper by maintaining shrinkage rate of dried web within allowable range

#71
20120328772
2012-12-27

Coated paper making apparatus and method

#72
20120308744
2012-12-06

Printable sheet that is ultra-smooth and recyclable, and its method of fabrication

#73
20120201967
2012-08-09

Method for coating paper

#74
20110308751
2011-12-22

Cellulose articles containing an additive composition

#75
20110290180
2011-12-01

Apparatus for impregnating web-like materials with thermally curable impregnating resin

#76
20110262745
2011-10-27

COATED RECYCLABLE PAPER OR PAPERBOARD AND METHODS FOR THEIR PRODUCTION

#77
20110259536
2011-10-27

Process for making material for acquisition of liquids and disposable absorbent article comprising the material

#78
20110027534
2011-02-03

MOLD RELEASE SHEET AND MOLDED ARTICLES

#79
20110011547
2011-01-20

Paper substrate having enhanced print density

#80
20100323163
2010-12-23

SEED CRYSTAL COATING FOR GYPSUM WALLBOARD FACING

#81
20100304071
2010-12-02

Polyol-based release paper, articles, and methods

#82
20100159164
2010-06-24

INKJET PRINTING PAPER

#83
20100065237
2010-03-18

Single ply paper product, method for manufacturing, and article

#84
20100021751
2010-01-28

Poly(lactic acid)-containing compositions for use in imparting oil, grease, or water resistance to paper

#85
20090252873
2009-10-08

Apparatus and method for treating materials with compositions

#86
20090159090
2009-06-25

SMOKING ARTICLE WITH IMPROVED EXTINGUISHING CHARACTERISTCS

#87
20090120782
2009-05-14

Atmospheric treater with roller confined discharge chamber

#88
20090104430
2009-04-23

LATHER-FORMING TISSUE PAPER PRODUCT

#89
20090098367
2009-04-16

Compositions with elongated particles having varying charges and aspect ratios

#90
20090054639
2009-02-26

Process for the Manufacture of Oxidized Starch, Oxidized Starch and Its Use

#91
20090005897
2009-01-01

Method for supplying a chemical or chemical compound in a fibrous web machine and an apparatus for implementing the method

#92
20080305702
2008-12-11

Substrates Having Biocidal and/or Antimicrobial Properties

#93
20080295987
2008-12-04

Method of making surface-sized paper/board

#94
20080295985
2008-12-04

Cellulose articles containing an additive composition

#95
20080276970
2008-11-13

Apparatus and method for treating materials with compositions

#96
20080249206
2008-10-09

Material for acquisition of liquids and disposable absorbent article comprising the material

#97
20080248318
2008-10-09

Low-Opacity Release Paper, Release-Paper Backing and Methods

#98
20070272382
2007-11-29

Coated Paper as a Printed Material

#99
20070199165
2007-08-30

Polyvinylamine treatments to improve dyeing of cellulosic materials

#100
20070169904
2007-07-26

Chemical softening composition for paper products

#101
20070125267
2007-06-07

Paper substrate having enhanced print density

#102
20070074641
2007-04-05

Mixtures of solids, consisting of a reactive sizing agent and starch, method for producing said mixtures and use thereof

#103
20070068642
2007-03-29

Wax emulsion coating applications

#104
20060260774
2006-11-23

Anionic-cationic polymer blend for surface size

#105
20060131303
2006-06-22

Single ply paper product, method for manufacturing, and article

#106
20060130989
2006-06-22

Tissue products treated with a polysiloxane containing softening composition that are wettable and have a lotiony-soft handfeel

#107
20060124263
2006-06-15

Method and apparatus in the surface sizing of a paper or board web

#108
20060121207
2006-06-08

Process for making a fibrous structure comprising an additive

#109
20060081287
2006-04-20

Method and arrangement in the manufacture of coating

#110
20060075575
2006-04-13

Chemical softening composition for paper products

#111
20050238700
2005-10-27

Paper tissue with high lotion transferability

#112
20050238682
2005-10-27

Tissue paper with protruding lotion deposits

#113
20050178515
2005-08-18

Strong and dispersible paper products

#114
20050175779
2005-08-11

Method of producing decorative sheets, in particular, finish sheets for flooring, furniture or wall covering panels

#115
20050136766
2005-06-23

Wet-or dry-use biodegradable collecting sheet

#116
20050121444
2005-06-09

Single ply paper product, method for manufacturing, and article

#117
20050089651
2005-04-28

Method for producing coated paper for printing

#118
20050079292
2005-04-14

Grooved backing roller for coating

#119
20050069635
2005-03-31

Machine for the production and/or converting of a material web and methods for removing contaminations in regard to such machinery

#120
20050022956
2005-02-03

Anionic-cationic polymer blend for surface size

#121
20050003083
2005-01-06

Method for producing sized paper or cardboard