ClassID:

127008

D21H21/30 - CPC Classification

Classification description:

Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper Luminescent or fluorescent substances, e.g. for optical bleaching

Recent Application in this class:
#1
20230116888
2023-04-13

BINDING MATERIAL AND METHOD FOR MANUFACTURING MOLDED BODY

#2
20220195293
2022-06-23

Multi-luminescent security element and value or security product containing said security element

#3
20210222369
2021-07-22

COATING COMPOSITION FOR PAPER AND PAPERBOARD

#4
20210214896
2021-07-15

COATING COMPOSITION FOR PAPER AND PAPERBOARD

#5
20210140112
2021-05-13

WATER SOLUBLE DYE COMPOSITIONS

#6
20210032812
2021-02-04

BLEACHING AND SHIVE REDUCTION PROCESS FOR NON-WOOD FIBERS

#7
20210010204
2021-01-14

Aramid fiber far-infrared emitting paper and preparation method thereof

#8
20200216676
2020-07-09

Whitening agents for cellulosic substrates

#9
20200031090
2020-01-30

Sheet forming binder, container, sheet forming apparatus, sheet forming method, and powder set

#10
20190358984
2019-11-28

OPTICAL BRIGHTENING COMPOSITIONS FOR HIGH QUALITY INKJET PRINTING

#11
20190337316
2019-11-07

Security feature and document of value

#12
20190194871
2019-06-27

Fluorescent whitening agents and mixtures thereof

#13
20190071572
2019-03-07

Whitening agents for cellulosic substrates

#14
20190002801
2019-01-03

Polysaccharide derivatives as optical brightening agents

#15
20180333975
2018-11-22

Printed watermark

#16
20180322811
2018-11-08

Block out label, label sheet, and related method

#17
20180320014
2018-11-08

Core-shell particle-based security pigment and method for production thereof

#18
20180311992
2018-11-01

Pigment system, luminescent dye system, and value document

#19
20180311991
2018-11-01

Security pigment based on core-shell particles, and production method

#20
20180266120
2018-09-20

Wallboard joint tape with fluorescent compound

#21
20180202107
2018-07-19

Sizing compositions

#22
20180195237
2018-07-12

Sizing compositions

#23
20170321058
2017-11-09

Electrically conductive, colored interference pigments

#24
20170321057
2017-11-09

Non-metallic pigments having metal properties

#25
20170218572
2017-08-03

Optical brightening agent composition

#26
20170101605
2017-04-13

Whitening agents for cellulosic substrates

#27
20170101537
2017-04-13

Whitening agents for cellulosic substrates

#28
20170101536
2017-04-13

Whitening agents for cellulosic substrates

#29
20170037578
2017-02-09

Separated treatment of paper substrate with multivalent metal salts and OBAs

#30
20160333526
2016-11-17

Security device

#31
20160312409
2016-10-27

OPTICAL BRIGHTENING COMPOSITIONS FOR HIGH QUALITY INK JET PRINTING

#32
20160215456
2016-07-28

Value document and method for checking the presence of the same

#33
20160177098
2016-06-23

Optical brightening agents for high quality ink-jet printing

#34
20160168797
2016-06-16

Reusable water writing paper, preparation method thereof, and inkless printing device used for same

#35
20160152803
2016-06-02

Process for producing cellulosic shaped articles, cellulosic shaped articles and the use thereof

#36
20160075163
2016-03-17

Method for marking a feature substance, security feature, document of value and method for verifying said document

#37
20160060815
2016-03-03

PROCESS FOR TREATING CELLULOSE FIBRES IN ORDER TO PRODUCE A COMPOSITION COMPRISING MICROFIBRILLATED CELLULOSE AND A COMPOSITION PRODUCED ACCORDING TO THE PROCESS

#38
20160060814
2016-03-03

Use of Micronized Cellulose and Fluorescent Whitening Agent for Surface Treatment of Cellulosic Materials

#39
20160053169
2016-02-25

Multi-luminescent security element and value or security product containing said security element

#40
20150345082
2015-12-03

OPTICAL BRIGHTENING COMPOSITIONS FOR HIGH QUALITY INKJET PRINTING

#41
20150337496
2015-11-26

Bleaching and shive reduction process for non-wood fibers

#42
20150197116
2015-07-16

Optical brightening compositions for high quality ink jet printing

#43
20150159331
2015-06-11

Fluorescent brighter #71 used for the papermaking process

#44
20150153278
2015-06-04

METHOD FOR DETECTING SOILING OF PAPER MACHINE CLOTHING AND PAPER MACHINE CLOTHING

#45
20150123037
2015-05-07

FWA formulation used for the papermaking process

#46
20150119600
2015-04-30

Novel Optical Brightening Agent Used for the Papermaking Process

#47
20150111054
2015-04-23

Coated substrate and system and method for making the same

#48
20150007749
2015-01-08

Composition and method for treating media

#49
20140339462
2014-11-20

Stilbene optical brighteners

#50
20140335367
2014-11-13

Composition and recording sheet with improved optical properties

#51
20140284497
2014-09-25

Spectral luminescence standard for the near infrared region

#52
20140259458
2014-09-18

Processes and compositions for brightness improvement in paper production

#53
20140220323
2014-08-07

Paper sizing composition with salt of calcium (II) and organic acid, products made thereby, method of using, and method of making

#54
20140203212
2014-07-24

Fluorescent whitening agent aqueous solutions

#55
20140178707
2014-06-26

Paper coating or binding formulations and methods of making and using same

#56
20140142305
2014-05-22

Bis-(triazinylamino)-stilbene derivatives

#57
20140034258
2014-02-06

Fluorescent whitening agent compositions

#58
20130206350
2013-08-15

Method for improving brightness in bleached pulp

#59
20130133849
2013-05-30

Composition and recording sheet with improved optical properties

#60
20130126117
2013-05-23

COMPOSITION AND PROCESS FOR WHITENING PAPER

#61
20130105099
2013-05-02

Fluorescent dyes for paper dyeing

#62
20130000855
2013-01-03

METHOD FOR MANUFACTURING NANOFIBRILLATED CELLULOSE PULP AND USE OF THE PULP IN PAPER MANUFACTURING OR IN NANOFIBRILLATED CELLULOSE COMPOSITES

#63
20120311798
2012-12-13

Aqueous sizing compositions for shading in size press applications

#64
20120238171
2012-09-20

Concentrated storage-stable aqueous optical brightening solutions

#65
20120214011
2012-08-23

DISULFO-TYPE FLUORESCENT WHITENING AGENTS IN COATING APPLICATIONS

#66
20120211188
2012-08-23

Disulfo-type fluorescent whitening agents

#67
20120211185
2012-08-23

Compositions and processes for paper

#68
20120199302
2012-08-09

Disulfo-type fluorescent whitening agent compositions

#69
20120178665
2012-07-12

Whitening agents for cellulosic substrates

#70
20120159719
2012-06-28

Black trisazo dyes, their preparation and their use

#71
20120132381
2012-05-31

NOVEL PAPER AND METHOD OF MANUFACTURING THEREOF

#72
20120132380
2012-05-31

Method of manufacturing paper and products obtained by the method

#73
20120121872
2012-05-17

Paper sizing composition with salt of calcium (II) and organic acid, products made thereby, method of using, and method of making

#74
20120118522
2012-05-17

Aqueous Solutions Of Acid Dyes For Shading In Size Press Applications

#75
20120031577
2012-02-09

Fluorometric method for monitoring surface additives in a papermaking process

#76
20120003490
2012-01-05

Surface treatment of substrate or paper/paperboard products using optical brightening agent

#77
20110289698
2011-12-01

Whitening agents for cellulosic substrates

#78
20110281042
2011-11-17

SURFACE ADDITIVES FOR WHITENESS IMPROVEMENTS TO REVERSE WHITENESS LOSS DUE TO CALCIUM CHLORIDE

#79
20110268896
2011-11-03

ORGANIC FLUORESCENT COMPOSITIONS

#80
20110253331
2011-10-20

MIXTURE, COMPOSITION AND PROCESS FOR SURFACE TREATMENT OF PAPER

#81
20110226993
2011-09-22

Improved Optical Brightening Compositions for High Quality Ink Jet Printing

#82
20110226432
2011-09-22

METHOD AND APPARATUS FOR FEEDING CHEMICALS INTO A PROCESS LIQUID FLOW

#83
20110174455
2011-07-21

Compositions and processes for paper production

#84
20110168343
2011-07-14

Optical brightening compositions

#85
20110151149
2011-06-23

Printable substrates with improved brightness from OBAs in presence of multivalent metal salts

#86
20110146930
2011-06-23

Controlling the detectability of an article and method for authenticating the article

#87
20110146929
2011-06-23

Optical brightening compositions

#88
20110126996
2011-06-02

Composition and process for whitening paper

#89
20110126995
2011-06-02

METHOD FOR PRODUCTION OF PAPER

#90
20110094694
2011-04-28

Fluorescent whitening agent compositions

#91
20110045078
2011-02-24

Process for producing cellulosic shaped articles, cellulosic shaped articles and the use thereof

#92
20110008637
2011-01-13

METHOD FOR IMPROVING THE PERFORMANCE OF OPTICAL BRIGHTENING AGENTS

#93
20110008631
2011-01-13

MULTI-PLY WEB OF FLEXIBLE MATERIAL, SUCH AS TISSUE PAPER OR NONWOVEN, AND PRODUCT, AND METHOD FOR IMPROVING THE BLEED FASTNESS OF A FLUORESCENT WHITENING AGENT OF A MULTI-PLY WEB

#94
20100263818
2010-10-21

Retention systems and methods for papermaking

#95
20100261027
2010-10-14

PAPER COATING COMPOSITIONS

#96
20100252213
2010-10-07

PULP AND PAPER HAVING INCREASED BRIGHTNESS

#97
20100230061
2010-09-16

Process for Producing Optically Brightened Paper

#98
20100203266
2010-08-12

COATED CARDBOARD WITH MARKING ELEMENT AND METHOD OF MARKING SAID CARDBOARD

#99
20100181536
2010-07-22

Aqueous Solutions of Optical Brighteners

#100
20100175845
2010-07-15

Aqueous Solutions Of Optical Brighteners

#101
20100143736
2010-06-10

Surface treatment of substrate or paper/paperboard products using optical brightening agent

#102
20100132901
2010-06-03

Process for improving optical properties of paper

#103
20100129553
2010-05-27

Optical Brightening Compositions For High Quality Inkjet Printing

#104
20100086709
2010-04-08

Paper substrate containing a wetting agent and having improved printability

#105
20100035075
2010-02-11

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

#106
20100025633
2010-02-04

Whitening agents for cellulosic substrates

#107
20090317549
2009-12-24

Composition and recording sheet with improved optical properties

#108
20090281221
2009-11-12

Method for stabilizing the whiteness of fluorescent whitening agent(s)(FWA) included in surface-treatment size/coating slip for paper and of surface-treatment layers formed thereof

#109
20090253828
2009-10-08

Particle in the shape of an encapsulated droplet and process for making such a particle

#110
20090250183
2009-10-08

Paper coating or binding formulations and methods of making and using same

#111
20090227712
2009-09-10

Triazinyl flavonate brighteners

#112
20090218060
2009-09-03

Use of fluorescent nanoparticles to make on-line measurements of cross-web and machine-direction component and property variations in paper and continuous web products

#113
20090205795
2009-08-20

Combined process of peroxide bleaching of wood pulps and addition of optical brightening agents

#114
20090159859
2009-06-25

Use of a metal organosilicate polymer for the protection of compounds sensitive to oxidation and/or to electromagnetic radiation

#115
20090137445
2009-05-28

Inorganic optical brightener

#116
20090126889
2009-05-21

FLUOROMETRIC METHOD FOR MONITORING SURFACE ADDITIVES IN A PAPERMAKING PROCESS

#117
20090126888
2009-05-21

FLUOROMETRIC METHOD FOR MONITORING SURFACE ADDITIVES IN A PAPERMAKING PROCESS

#118
20090114355
2009-05-07

ORGANIC FLUORESCENT COMPOSITIONS

#119
20090081475
2009-03-26

Aqueous solutions of optical brighteners

#120
20090068389
2009-03-12

Block out label, label sheet, and related method

#121
20090025895
2009-01-29

Process for the Manufacture of Paper and Board

#122
20080307585
2008-12-18

Triazinylaminostilbene disulphonic acid mixtures

#123
20080290320
2008-11-27

Amphoteric stilbene composition

#124
20080230194
2008-09-25

Method and Apparatus for Feeding Chemicals Into a Process Liquid Flow

#125
20080220187
2008-09-11

Document and method of making document including invisible information for security applications

#126
20080206486
2008-08-28

Method for identifying articles and process for maintaining security

#127
20080187851
2008-08-07

Method of marking material, marked and verification of genuineness of a product

#128
20080177090
2008-07-24

Whitening agents for cellulosic substrates

#129
20080142179
2008-06-19

Aqueous Dispersions of Optical Brighteners

#130
20080135805
2008-06-12

Fluorescent Pigments for Coating Compositions

#131
20080098931
2008-05-01

Process for manufacturing paper and paperboard products

#132
20080073617
2008-03-27

Compositions of fluorescent whitening agents

#133
20080040865
2008-02-21

Fluorescent Whitening Pigments

#134
20080024771
2008-01-31

Method for identifying articles and process for maintaining security

#135
20080017337
2008-01-24

Compositions and processes for paper production

#136
20070277950
2007-12-06

Surface treatment of substrate or paper/paperboard products using optical brightening agent

#137
20070260060
2007-11-08

Amphoteric fluorescent whitening agents

#138
20070257232
2007-11-08

Light-emitting body dispersed with phosphor particles, method for producing same and material or article containing such light-emitting body

#139
20070249764
2007-10-25

Aqueous coatings with optical brighteners

#140
20070193707
2007-08-23

Method for treating kraft pulp with optical brighteners after chlorine bleaching to increase brightness

#141
20070186358
2007-08-16

Concentrated optical brightener solutions

#142
20070169903
2007-07-26

Papermaking processes using coagulants and optical brighteners

#143
20070131373
2007-06-14

Method of decreasing the rate of photoyellowing with thiocyanic acid

#144
20070113998
2007-05-24

Paper product and method of making

#145
20070113995
2007-05-24

Paper product and method of making

#146
20070062653
2007-03-22

Methods for enhancing brightness and resistance to thermal yellowing of bleached kraft pulp and paper

#147
20070006127
2007-01-04

Dual security mark

#148
20060289831
2006-12-28

Aqueous solutions of fluorescent whitening agents

#149
20060260776
2006-11-23

Opacifying composition for paper or paperboard, processes using same and paper or paperboard produced therefrom

#150
20060260509
2006-11-23

Compositions for enhanced paper brightness and whiteness

#151
20060246383
2006-11-02

Amphoteric stilbene composition

#152
20060242770
2006-11-02

Xyloglucan conjugates useful for modifying cellulosic textiles

#153
20060229393
2006-10-12

Compositions and methods for enhancing brightness and brightness stabilization in papermaking

#154
20060191654
2006-08-31

Paper product and method for manufacturing

#155
20060185808
2006-08-24

Fixation of optical brightening agents onto papermaking fiber

#156
20060185805
2006-08-24

Composition for the fluorescent whitening of paper

#157
20060155124
2006-07-13

Amphoteric fluorescent whitening agents

#158
20060106186
2006-05-18

Use of a copolymer having at least one grafted alkoxy or hydroxy polyalkylene glycol function as an agent for improving optical brightening activation, and products obtained

#159
20060102306
2006-05-18

Paper improver

#160
20060093777
2006-05-04

Photoluminescent felt materials, photoluminescent turntable slipmats, and methods of making the same

#161
20060065381
2006-03-30

Alkanolammonium-containing triazinyl flavonate whiteners

#162
20060030707
2006-02-09

Triazinylaminostilbene disulphonic acid mixtures

#163
20050203221
2005-09-15

Whitening pigments

#164
20050173083
2005-08-11

Optical brightener for aqueous high yield pulp and process for making brightened paper

#165
20050167064
2005-08-04

Surface finishing of paper or board, and agent for this purpose

#166
20050161184
2005-07-28

Amphoteric and cationic fluorescent whitening agents

#167
20050155731
2005-07-21

Process for making abrasion resistant paper and paper and paper products made by the process

#168
20050124756
2005-06-09

Method of preparing polyvinyl alcohol and optical brightener containing aqueous compositions and particulate blends therefor

#169
20050124755
2005-06-09

Polyvinyl alcohol and optical brightener concentrate

#170
20050061461
2005-03-24

Production of paper board and cardboard

#171
20050022320
2005-02-03

Optical brighteners

#172
15006956
2016-12-06

Formulation of optical brighteners for papermaking