ClassID:

127046

D21H23/48 - 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; Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper Curtain coaters

Recent Application in this class:
#1
20260138799
2026-05-21

BIO-BASED COMPOSITES AS WATER VAPOR BARRIER ON PAPER

#2
20260009187
2026-01-08

APPLICATION DEVICE AND METHOD FOR COATING A FIBROUS MATERIAL WEB

#3
20250146229
2025-05-08

A METHOD AND A SYSTEM FOR MANUFACTURING A PAPERBOARD

#4
20240426060
2024-12-26

METHOD FOR MANUFACTURING A MULTIPLY PAPERBOARD, AND A MULTIPLY PAPERBOARD

#5
20240247419
2024-07-25

VISCOSITY MODIFIED GLASS FIBER PRODUCTS

#6
20240229358
2024-07-11

METHOD FOR MANUFACTURING A BARRIER FILM COMPRISING HIGHLY REFINED CELLULOSE

#7
20240133118
2024-04-25

METHOD FOR MANUFACTURING A BARRIER FILM COMPRISING HIGHLY REFINED CELLULOSE

#8
20230374734
2023-11-23

POLYLACTIDE FORMULATION FOR IMPROVED EXTRUSION PROCESSING

#9
20230243104
2023-08-03

COMPOSITIONS

#10
20230151545
2023-05-18

Multilayer film comprising highly refined cellulose fibers

#11
20230039088
2023-02-09

Coated paper

#12
20220251784
2022-08-11

PRODUCTION OF SHEETS COMPRISING FIBRILLATED CELLULOSE

#13
20220243401
2022-08-04

Method for applying starch to a paper or paperboard web

#14
20220228319
2022-07-21

METHOD FOR PRODUCTION OF A PRODUCT COMPRISING A FIRST PLY

#15
20220213652
2022-07-07

Method for manufacturing paper barrier base material

#16
20220154403
2022-05-19

Method for manufacturing paper barrier base material

#17
20220074144
2022-03-10

Paperboard and a method of producing a paperboard

#18
20210395950
2021-12-23

Compositions

#19
20210189660
2021-06-24

Device for applying a treatment substance

#20
20210054570
2021-02-25

Process for production of film comprising microfibrillated cellulose

#21
20200407918
2020-12-31

Method for production of a product comprising a first ply

#22
20200407896
2020-12-31

Viscosity modified formaldehyde-free binder compositions and methods

#23
20200316636
2020-10-08

Curtain applicator

#24
20200256017
2020-08-13

Curtain application unit and method for applying an application medium

#25
20200164399
2020-05-28

METHOD FOR COATING A MATERIAL WEB

#26
20200115854
2020-04-16

Method for sizing a multi-ply fiber web and a forming section for a multi-ply fiber web

#27
20200109517
2020-04-09

Oil and grease resistant paperboard

#28
20200038901
2020-02-06

Curtain applicator and method for applying an application medium

#29
20190177919
2019-06-13

Compositions

#30
20190161914
2019-05-30

Oil and grease resistant paperboard

#31
20190048501
2019-02-14

Soy protein and carbohydrate containing binder compositions

#32
20180362792
2018-12-20

Barrier coatings

#33
20180202106
2018-07-19

Printable compostable paperboard

#34
20180142418
2018-05-24

Method and system for manufacturing a coated paperboard and a coated paperboard

#35
20170328005
2017-11-16

Printable compostable paperboard

#36
20170002517
2017-01-05

Printable compostable paperboard

#37
20160340833
2016-11-24

Compostable paperboard with oil, grease, and moisture resistance

#38
20160230343
2016-08-11

Oil, grease, and moisture resistant paperboard

#39
20160230341
2016-08-11

Compositions

#40
20160102434
2016-04-14

Process and apparatus for coating composite pulp honeycomb support elements

#41
20160074898
2016-03-17

Arrangement in connection with curtain coating of a fibrous web

#42
20150352590
2015-12-10

Curtain coating device

#43
20150305814
2015-10-29

Online treated sealable and peelable medical paper for medical sterilization packaging

#44
20150190818
2015-07-09

Coating device for applying coating color onto a fiber web and method for coating of a fiber web

#45
20150111054
2015-04-23

Coated substrate and system and method for making the same

#46
20140377486
2014-12-25

Coating composition, a method for coating a substrate, a coated substrate, a packaging material and a liquid package

#47
20140291577
2014-10-02

Method for producing oxidizable-metal-containing coating material

#48
20140134909
2014-05-15

Viscosity modified formaldehyde-free binder compositions

#49
20140134497
2014-05-15

Soy protein and carbohydrate containing binder compositions

#50
20140023844
2014-01-23

Coated printing papers and processes for preparing them

#51
20130323453
2013-12-05

Method for manufacturing toilet roll products and toilet roll products

#52
20120100340
2012-04-26

FLAT SUBSTRATE WITH ORGANIC BASIS, USE OF SUCH A SUBSTRATE, AND METHOD

#53
20110179998
2011-07-28

Apparatus and method of curtain coating

#54
20110083603
2011-04-14

CURTAIN COATER

#55
20100330279
2010-12-30

AQUEOUS DISPERSION, A COATED SUBJECT AND USE OF AN AQUEOUS DISPERSION

#56
20100323212
2010-12-23

Biodegradable waterproof paper and manufacturing method for the same

#57
20100239763
2010-09-23

METHOD FOR MANUFACTURING PAPER

#58
20100209725
2010-08-19

METHOD OF MODIFYING PAPER AND CARDBOARD

#59
20100136355
2010-06-03

COATING COMPOSITION FOR PAPERS PROVIDING EXCELLENT WATER VAPOR BARRIER PROPERTIES

#60
20100119714
2010-05-13

METHOD AND DEVICE FOR PRODUCING AN AT LEAST ESSENTIALLY WOOD-FREE COATED PAPER WEB

#61
20100112226
2010-05-06

PROCESS FOR THE CURTAIN-COATING OF SUBSTRATES WITHOUT THE USE OF TENSIDES

#62
20100080919
2010-04-01

METHOD FOR PRODUCING SINGLE OR MULTIPLY COATED SUBSTRATES WITH THE AID OF A COLOURED COATING COMPOSITION COMPRISING A BINDING AGENT FOR ADHESION

#63
20100055333
2010-03-04

APPARATUS TO PRODUCE COATED PAPER, CARDBOARD OR OTHER FIBROUS WEBS WITH AT LEAST ONE THERMO-SENSITIVE LAYER AND METHOD TO OPERATE AN APPARATUS OF THIS TYPE

#64
20100051223
2010-03-04

Apparatus to produce coated paper, cardboard or other fibrous webs with at least one thermo-sensitive layer and a method to operate an apparatus of this type

#65
20100043700
2010-02-25

CURTAIN COATER

#66
20100035075
2010-02-11

Offset-printable coated white paper having a high fluorescent intensity and method for producing same

#67
20100006251
2010-01-14

METHOD AND ARRANGEMENT FOR THE PRODUCTION OF A WOOD-FREE COATED, MATTE OR SEMI-MATTE PAPER WEB

#68
20090226617
2009-09-10

PAPERBOARD FOR USE IN WATER RESISTANT PACKAGING

#69
20090130323
2009-05-21

Curtain coating process and device used for this purpose

#70
20080317963
2008-12-25

Curtain coating process using a high solids content composition, and coated product

#71
20080292875
2008-11-27

Method for applying one or more layers to a paper substrate

#72
20080274365
2008-11-06

Process for making multilayer coated paper or paperboard

#73
20080248321
2008-10-09

Method for the production of single-and/or multiple-coated substrates

#74
20080226828
2008-09-18

Method of curtain coating

#75
20080128101
2008-06-05

Method of applying a super-absorbent composition to tissue or towel substrates

#76
20080107912
2008-05-08

Multi-Layer Coated Products and Curtain Coating Process for Same

#77
20080096002
2008-04-24

Coated Paper Product and Method and Apparatus for Manufacturing Thereof

#78
20080090032
2008-04-17

Method of producing decorative paper and decorative laminate comprising such decorative paper

#79
20080057208
2008-03-06

Machine for single sided or double sided application of a liquid or viscous coating medium onto the surface of a moving material web, and associated operating method

#80
20070292665
2007-12-20

Laminated sheet

#81
20070248763
2007-10-25

METHOD FOR APPLYING A MULTIPLE LAYER DIRECTLY TO A PAPER, BOARD OR OTHER MOVING WEB OF FIBROUS MATERIAL

#82
20070212532
2007-09-13

METHOD FOR PRODUCING SINGLE OR MULTIPLY COATED SUBSTRATES WITH THE AID OF A COLOURED COATING COMPOSITION COMPRISING A BINDING AGENT FOR ADHESION

#83
20070184205
2007-08-09

PAPERBOARD FOR USE IN WATER RESISTANT PACKAGING

#84
20070184203
2007-08-09

Method to manufacture metallized paper with curtain coating

#85
20070166462
2007-07-19

Method and system for producing a wood-free coated matte or semi-matte paper web

#86
20070036904
2007-02-15

Method for coating a paper/board web

#87
20060251819
2006-11-09

Copolymer latex for non-contact coating, composition containing the same, coated paper and process for producing the same

#88
20060249266
2006-11-09

Machine for making/treating a sheet of material

#89
20060243200
2006-11-02

Paper/board web coating apparatus

#90
20060237120
2006-10-26

Method for the manufacture of corrugated board

#91
20060182889
2006-08-17

Method for feeding a treating agent to an application apparatus

#92
20060144535
2006-07-06

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

#93
20060113707
2006-06-01

Crosslinking agent application method and system

#94
20060099410
2006-05-11

Curtain-coated polyvinyl alcohol oil and grease barrier films

#95
20060000410
2006-01-05

Curtain coater

#96
20050132956
2005-06-23

Machine for single sided or double sided application of a liquid or viscous coating medium onto the surface of a moving material web, and associated operating method

#97
20050115494
2005-06-02

Device for coating and drying both sides of a material web of paper or board

#98
20050098285
2005-05-12

Machine for making/treating a sheet of material

#99
20050079292
2005-04-14

Grooved backing roller for coating

#100
20050042443
2005-02-24

PVOH barrier performance on substrates

#101
20050039871
2005-02-24

Process for making coated paper or paperboard

#102
20050008785
2005-01-13

Method and apparatus for coating both sides of a web