D21H17/63 - CPC Classification Index

ClassID:

126929 ⎘

D21H17/63 - CPC Classification

Classification description:

Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution Inorganic compounds

Sub-classes:

D21H17/64 » Alkaline compounds 52
D21H17/65 » Acid compounds 45
D21H17/66 » Salts, e.g. alums 247
D21H17/67 » Water-insoluble compounds, e.g. fillers, pigments 265
D21H17/70 » forming new compounds in situ, e.g. within the pulp or paper, by chemical reaction with other substances added separately 70

Recent Application in this class:

20250198092

2025-06-19

METHOD FOR PRODUCING A SOUND-ABSORBING PANEL

20240003088

2024-01-04

CERAMIC PAPER AND METHOD FOR PREPARING SAME

20230243104

2023-08-03

COMPOSITIONS

20230183491

2023-06-15

MINERAL MATERIAL POWDER WITH HIGH DISPERSION ABILITY AND USE OF SAID MINERAL MATERIAL POWDER

20210395950

2021-12-23

Compositions

20210309000

2021-10-07

VAPORIZABLE ANTICORROSIVE COATING PAPER AND MANUFACTURING METHOD THEREFOR

20210054567

2021-02-25

Methods and systems for forming composite fibers

20210040328

2021-02-11

Layer sequence with colour flop effect including platelet-shaped effect pigments

20200340184

2020-10-29

Carbon dioxide sorbents and structures, methods of use, and methods of making thereof

#10

20200086256

2020-03-19

Antimicrobial composite filtering material and method for making the same

#11

20200048840

2020-02-13

Glass plate interleaving paper

#12

20200048838

2020-02-13

Treated fibers and fibrous structures comprising the same

#13

20190376280

2019-12-12

METHOD OF MANUFACTURING A FLAME-RETARDANT HEAT INSULATING FORMED PRODUCT

#14

20190376235

2019-12-12

Treated fibers and fibrous structures comprising the same

#15

20190276675

2019-09-12

Mineral material powder with high dispersion ability and use of said mineral material powder

#16

20190249368

2019-08-15

Starch-based PHCH

#17

20190177919

2019-06-13

Compositions

#18

20190119857

2019-04-25

Method and treatment system for making of paper

#19

20190085909

2019-03-21

Paper friction material and method of manufacturing the same

#20

20190063000

2019-02-28

Precipitated calcium carbonate

#21

20180334777

2018-11-22

Method for production of porous moldings

#22

20180291559

2018-10-11

Method for preparing active carbon-based special synthetic paper

#23

20180202104

2018-07-19

STANDARDIZED EX VIVO PLATFORMS FOR THE ANTIGEN-SPECIFIC EXPANSION OF CD4+ T CELL POPULATIONS

#24

20180169552

2018-06-21

Antimicrobial composite filtering material and method for making the same

#25

20180154673

2018-06-07

Magnetically bound medium with reattachable pages

#26

20180112335

2018-04-26

Chemical method and system for the manufacture of fibrous yarn

#27

20180058512

2018-03-01

Paper friction material and method of manufacturing the same

#28

20180058008

2018-03-01

Carbon dioxide sorbents and structures, methods of use, and methods of making thereof

#29

20170362776

2017-12-21

PRODUCTION OF PAPER AND BOARD

#30

20170342662

2017-11-30

Process for applying composition containing a cationic trivalent metal and debonder and fluff pulp sheet made from same

#31

20170321058

2017-11-09

Electrically conductive, colored interference pigments

#32

20170233947

2017-08-17

ADDITIVES FOR PAPERMAKING

#33

20170198440

2017-07-13

Starch-based PHCH

#34

20170145638

2017-05-25

Modified nanocomposite material, method for its production and its application

#35

20170145636

2017-05-25

Printing substrate

#36

20170113372

2017-04-27

Treated porous material

#37

20170073897

2017-03-16

Glass plate-interleaving paper

#38

20170022669

2017-01-26

Method for producing a mat of cellulose fibres with a controlled level of mineral material for bitumen-impregnated roofing elements, and suitable device

#39

20160353742

2016-12-08

Biocidal resin composition including one or a plurality of resins selected from MF, UF, PF, MUF and phenolic resins; and more than one soluble copper salt

#40

20160312408

2016-10-27

Arrangement for and a method of manufacturing a fibrous web

#41

20160243877

2016-08-25

Security printing

#42

20160237624

2016-08-18

Dry fluff pulp sheet additive

#43

20160230341

2016-08-11

Compositions

#44

20160208438

2016-07-21

Flame-resistant paper for wave absorber member and wave absorber member

#45

20160153147

2016-06-02

Paper with high covering power

#46

20160083907

2016-03-24

Crumb made of pulp

#47

20160076202

2016-03-17

Basecoat and associated paperboard structure

#48

20160060813

2016-03-03

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

#49

20160032530

2016-02-04

Process for production of paper or board

#50

20150361619

2015-12-17

Method of producing structure for producing casting, and structure such as mold

#51

20150298346

2015-10-22

Process for production of wood based materials from lignocellulose

#52

20150274978

2015-10-01

Method for producing basic products from ash, in particular paper ash

#53

20150176210

2015-06-25

Additives for papermaking

#54

20150167243

2015-06-18

Energy efficient process for preparing nanocellulose fibers

#55

20150140047

2015-05-21

Method for the surface application of chemical compounds to both synthetic and natural fibers and a system for same

#56

20150122440

2015-05-07

Starch-based PHCH

#57

20150062236

2015-03-05

Uncoated recording media

#58

20150050474

2015-02-19

Multilayered sheet

#59

20150041092

2015-02-12

Method for making of paper, tissue, board or the like

#60

20150040800

2015-02-12

Dispersed calcium carbonate containing material for an improved stability under alkaline conditions

#61

20150000564

2015-01-01

Mineral material powder with high dispersion ability and use of said mineral material powder

#62

20140209263

2014-07-31

Uncoated recording media

#63

20140198166

2014-07-17

Low grammage recording medium

#64

20140162003

2014-06-12

Pyrophoric sheet

#65

20140134427

2014-05-15

Treated inorganic pigments having reduced photoactivity and anti-microbial properties and their use in paper slurries

#66

20140113148

2014-04-24

Liner/medium/paper/for laminated panel

#67

20140030485

2014-01-30

RENEWABLE PRINT MEDIA

#68

20130343997

2013-12-26

Metal coating of rare earth nano-phosphors and uses thereof

#69

20130319626

2013-12-05

Method and Material for Manufacturing Backplane Component

#70

20130280545

2013-10-24

Compositions

#71

20130264020

2013-10-10

Addition of endothermic fire retardants to provide near neutral pH pulp fiber webs

#72

20130199742

2013-08-08

Photodegradable paper and its use

#73

20130199276

2013-08-08

Incorporation of metal nanoparticles into wood substrate and methods

#74

20130192781

2013-08-01

BUILDING MATERIAL FOR FORMING AN ARCHITECTURAL SURFACE COVERING AND METHOD FOR PRODUCING THE SAME

#75

20130156984

2013-06-20

Multilayered sheet

#76

20130133850

2013-05-30

Fire retardant treated fluff pulp web and process for making same

#77

20130101831

2013-04-25

METALLIZED PAPER PACKAGING FILM AND PROCESS FOR ITS PRODUCTION

#78

20130048241

2013-02-28

Process of Producing a Cellulosic Fibre Web

#79

20120312490

2012-12-13

Powder composition and use thereof for paper production

#80

20120255695

2012-10-11

Addition of endothermic fire retardants to provide near neutral pH pulp fiber webs

#81

20120222830

2012-09-06

Method for producing paper

#82

20120186766

2012-07-26

MANUFACTURING A PAPERY ARTICLE

#83

20120186763

2012-07-26

Method for coating dry finish paperboard

#84

20120145040

2012-06-14

Basecoat and Associated Paperboard Structure

#85

20120138692

2012-06-07

Paper

#86

20120132381

2012-05-31

NOVEL PAPER AND METHOD OF MANUFACTURING THEREOF

#87

20120132380

2012-05-31

Method of manufacturing paper and products obtained by the method

#88

20120080156

2012-04-05

Cellulose-reinforced high mineral content products and methods of making the same

#89

20120058274

2012-03-08

BUILDING MATERIAL FOR FORMING AN ARCHITECTURAL SURFACE COVERING AND METHOD FOR PRODUCING THE SAME

#90

20120055645

2012-03-08

BUILDING MATERIAL FOR FORMING AN ARCHITECTURAL SURFACE COVERING AND METHOD FOR PRODUCING THE SAME

#91

20120055642

2012-03-08

IMPROVING THE STRENGTH OF PAPER AND BOARD PRODUCTS

#92

20110315332

2011-12-29

Method for coating dry finish paperboard

#93

20110220311

2011-09-15

Reduction of the adsorption of quaternary ammonium salts onto cellulosic fibers

#94

20110168343

2011-07-14

Optical brightening compositions

#95

20110151148

2011-06-23

Printable substrates with improved dry time and acceptable print density by using monovalent salts

#96

20110146961

2011-06-23

Method of manufacturing total heat exchange element and total heat exchange element

#97

20110146929

2011-06-23

Optical brightening compositions

#98

20110108227

2011-05-12

Process For Applying Composition Containing A Cationic Trivalent Metal And Debonder And Fluff Pulp Sheet Made From Same

#99

20110034891

2011-02-10

Dry fluff pulp sheet additive

#100

20110011548

2011-01-20

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

#101

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

#102

20100314333

2010-12-16

FLUTABLE FIBER WEBS WITH LOW SURFACE ELECTRICAL RESISTIVITY FOR FILTRATION

#103

20100233245

2010-09-16

Nanoparticle composition and process thereof

#104

20100230478

2010-09-16

Anticorrosion composition

#105

20100212853

2010-08-26

Fiber loading improvements in papermaking

#106

20100163200

2010-07-01

METHOD FOR MAKING READILY DEFIBERED PULP PRODUCT

#107

20100143646

2010-06-10

PAPER PRODUCTS HAVING SOLID SUPPORT MATERIALS

#108

20100089541

2010-04-15

Manufacture of filled paper

#109

20100084103

2010-04-08

Manufacture of paper or paperboard

#110

20100059191

2010-03-11

HEAT, GREASE, AND CRACKING RESISTANT RELEASE PAPER AND PROCESS FOR PRODUCING THE SAME

#111

20100043991

2010-02-25

Papers having borate-based complexing and method of making same

#112

20100032116

2010-02-11

BUILDING MATERIAL FOR FORMING AN ARCHITECTURAL SURFACE COVERING AND METHOD FOR PRODUCING THE SAME

#113

20090297808

2009-12-03

Low density paperboard

#114

20090270307

2009-10-29

Stain remover containing fluoropolymer

#115

20090261293

2009-10-22

Method of producing the pulp based food carton that emit FIR

#116

20090239047

2009-09-24

Basecoat and associated paperboard structure

#117

20090236062

2009-09-24

Method for coating dry finish paperboard

#118

20090218054

2009-09-03

BUILDING MATERIAL FOR FORMING AN ARCHITECTURAL SURFACE COVERING AND METHOD FOR PRODUCING THE SAME

#119

20090173464

2009-07-09

Acoustic ceiling tiles made with paper processing waste

#120

20090095431

2009-04-16

Paper-Sizing Emulsion, Process for Preparing It and Use Thereof

#121

20080280808

2008-11-13

Stain Remover Containing Fluoropolymer

#122

20080010853

2008-01-17

Process for Producing Dried Singulated Fibers Using Steam and Heated Air

#123

20060269706

2006-11-30

Sleeved tissue product

#124

20060237153

2006-10-26

Printing papers

#125

20050275138

2005-12-15

Building material for forming an architectural surface covering and method for producing the same

#126

20050145354

2005-07-07

Glitter paper product

#127

20050086828

2005-04-28

Process for producing dried, singulated fibers using steam and heated air

#128

20050056391

2005-03-17

Papers having borate-based complexing and method of making same

#129

20050022415

2005-02-03

System for making dried singulated crosslinked cellulose pulp fibers

#130

18939596

2025-04-15

Cellulose based biodegradable absorptive filter and method of making

#131

18808127

2024-12-24

Method for making an adsorptive air filter

#132

18665929

2024-10-01

Biodegradable air filter from date palm and method of fabrication thereof