ClassID:

126991

D21H21/02 - 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 Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control

Sub-classes:
Recent Application in this class:
#1
20230323601
2023-10-12

COATED CALCIUM CARBONATE FOR PITCH AND/OR STICKIES CONTROL

#2
20230212821
2023-07-06

METHOD FOR PITCH CONTROL DURING BLEACHING

#3
20230151549
2023-05-18

Paper coated with a functional polyolefin film

#4
20230071350
2023-03-09

METHOD OF REDUCING HYDROPHOBIC CONTAMINANTS IN A PULPING OR PAPERMAKING PROCESS

#5
20220340458
2022-10-27

Volatile fatty acid control

#6
20210301473
2021-09-30

Use of a polymer product for deposit formation control in manufacture of paper or board

#7
20200407921
2020-12-31

PITCH TROUBLE PREVENTION METHOD

#8
20200299903
2020-09-24

Method for predicting or controlling microbial status of a paper or board making process

#9
20200102701
2020-04-02

Method of directed fouling of a substance onto a selected surface

#10
20190382957
2019-12-19

Copolymer, aqueous solution comprising the copolymer and method for reducing negative effects of natural pitch and adhesive contaminants in both pulping and papermaking operations

#11
20190256377
2019-08-22

HYDROPHOBISED CALCIUM CARBONATE PARTICLES

#12
20190211504
2019-07-11

CONTAMINATION-PREVENTING AGENT COMPOSITION AND CONTAMINATION PREVENTING METHOD

#13
20190177913
2019-06-13

Removal of stickies in the recycling of paper and paperboard

#14
20190153675
2019-05-23

Method of measuring hydrophobic contaminants in a pulp slurry or a papermaking system

#15
20190003122
2019-01-03

Systems and methods for providing force vector compensated fan nozzles

#16
20190002804
2019-01-03

Composition, its use and method for removing and preventing wet strength resins from contaminating papermaking equipment

#17
20180363249
2018-12-20

Methods to reduce rewinder breaks during paper production from recycled paper furnish

#18
20180363247
2018-12-20

Polymer for pitch and stickies deposition control in papermaking

#19
20180230652
2018-08-16

Pitch-controlling agent and pitch-controlling method

#20
20180155872
2018-06-07

Method of improving paper machine forming wire, felt and woven dryer belt performance by the application of peroxide containing solutions

#21
20180155871
2018-06-07

METHODS FOR BLEACHING AQUEOUS PULPS AND COMPOSITIONS FOR USE IN THESE METHODS

#22
20180126402
2018-05-10

SPRAYING APPARATUS AND CHEMICAL SOLUTION

#23
20180118886
2018-05-03

Hydrophobic group-containing copolymer

#24
20180103269
2018-04-12

Methods and apparatus for the use of slice groups in encoding multi-view video coding (MVC) information

#25
20180100270
2018-04-12

Contamination inhibitor composition

#26
20180023251
2018-01-25

Method of directed fouling of a substance onto a selected surface

#27
20170328008
2017-11-16

Tissue dust reduction

#28
20170314203
2017-11-02

Method and composition for detackifying organic contaminants in the process of pulping and papermaking

#29
20170198435
2017-07-13

Method for preventing scale formation

#30
20170174533
2017-06-22

Adsorbing and/or reduction of the amount of organic materials in an aqueous medium by using colloidal precipitated calcium carbonate

#31
20170073891
2017-03-16

Method for producing paper, and pitch removal agent

#32
20160198193
2016-07-07

Methods and apparatus for the use of slice groups in encoding multi-view video coding (MVC) information

#33
20160177505
2016-06-23

Method for controlling deposits on papermaking surfaces

#34
20160138219
2016-05-19

Compositions for bleaching pulps and their use

#35
20160122947
2016-05-05

Method for making nanofibrillar cellulose and for making a paper product

#36
20150345080
2015-12-03

Method of using an anti-soiling agent composition

#37
20150322629
2015-11-12

Method for suppressing pitch formation

#38
20150267349
2015-09-24

Method of Increasing Enzyme Stability and Activity for Pulp and Paper Production

#39
20150075741
2015-03-19

Method for automatically determining stickies in a recycled fibre process

#40
20150044127
2015-02-12

Hydrophobised calcium carbonate particles

#41
20140027079
2014-01-30

Glycerol-based polymers for reducing deposition of organic contaminants in papermaking processes

#42
20130340964
2013-12-26

Anionic lipophilic glycerol-based polymers for organic deposition control in papermaking processes

#43
20130014908
2013-01-17

Method for producing paper, paperboard and cardboard

#44
20120304748
2012-12-06

Liquid composition sensor in scaling environment

#45
20120264888
2012-10-18

Process to produce an acylated vinylamine-containing polymer and its application as a papermaking additive

#46
20120225932
2012-09-06

Process for the production of polyamines

#47
20120073774
2012-03-29

METHOD FOR REDUCING DEPOSITS IN THE DRYING SECTION IN THE MANUFACTURE OF PAPER, PAPERBOARD, AND CARDBOARD

#48
20120045587
2012-02-23

Papermaking additives for roll release improvement

#49
20120043040
2012-02-23

Method of treating paper forming wire surface

#50
20110303378
2011-12-15

Method for contaminant removal in paper production

#51
20110209841
2011-09-01

Process for the control of pitch

#52
20110198048
2011-08-18

Enzymatic hydrolysis of a polymer comprising vinyl acetate monomer

#53
20110094695
2011-04-28

Method of controlling organic contaminants in pulp and paper making processes

#54
20110042020
2011-02-24

Liquid composition sensor in scaling environment

#55
20110011546
2011-01-20

METHOD FOR CONTROLLING DEPOSIT FORMATION

#56
20100269989
2010-10-28

USE OF 1,3-SELECTIVE LIPASES FOR PITCH CONTROL IN PULP AND PAPER PROCESSES

#57
20100170646
2010-07-08

Method of increasing enzyme stability and activity for pulp and paper production

#58
20100147476
2010-06-17

Hydrophobically modified poly(aminoamides)

#59
20100142618
2010-06-10

Methods and apparatus for the use of slice groups in encoding multi-view video coding (MVC) information

#60
20100111193
2010-05-06

Methods and apparatus for the use of slice groups in decoding multi-view video coding (MVC) information

#61
20100051216
2010-03-04

Process for the control of pitch

#62
20090308553
2009-12-17

Method for Treating Mineral Materials Using Amphoteric Polymers, Mineral Materials Thereby Obtained, and their Usage as an Agent for Reducing the Quantity of Colloids in Manufacturing Paper

#63
20090283230
2009-11-19

ADDITIVE, USE OF SAID ADDITIVE IN PAPER OR BOARD PRODUCTION, A METHOD OF IMPROVING PAPER OR BOARD MANUFACTURING AND A METHOD OF IMPROVING PAPER OR BOARD PRODUCT

#64
20090141963
2009-06-04

Method and apparatus for measuring deposition of particulate contaminants in pulp and paper slurries

#65
20090065159
2009-03-12

CHEMICAL PULP TREATMENT COMPOSITIONS AND METHODS

#66
20090044921
2009-02-19

BENTONITE FOR BINDING IMPURITIES DURING PAPER PRODUCTION

#67
20090043051
2009-02-12

Modified vinylamine-containing polymers as additives in papermaking

#68
20090020243
2009-01-22

Use of Cyclodextrins for Reducing Deposits During Paper Production

#69
20080283207
2008-11-20

Methods to control organic contaminants in fibers

#70
20080277085
2008-11-13

Additive, Use of Said Additive in Paper or Board Production, a Method of Improving Paper or Board Manufacturing and a Method of Improving Paper or Board Product

#71
20080269100
2008-10-30

Layered Silicate Slurries Having a High Solids Content

#72
20080236770
2008-10-02

Rapid fatty acid assay for use in pulp pitch control

#73
20080210393
2008-09-04

Mediator-Enzyme System for Controlling Pitch Deposits in Pulp and Paper Production

#74
20080185113
2008-08-07

Emulsions

#75
20080169073
2008-07-17

PITCH AND STICKIES CONTROL IN PULP AND PAPERMAKING PROCESSES

#76
20080149288
2008-06-26

Method for altering the tack of materials

#77
20080135194
2008-06-12

Method for improving the consolidation and dewatering of suspended particulate matter

#78
20080087393
2008-04-17

Enzymatic press felt treatment

#79
20080066879
2008-03-20

Methods to control lipophilic extractives in acacia wood pulp and fiber

#80
20080029231
2008-02-07

Hydrophobically modifed poly[ethylene glycol] for use in pitch and stickies control in pulp and papermaking processes

#81
20080023160
2008-01-31

Enzymatic hydrolysis of a polymer comprising vinyl acetate monomer

#82
20070261806
2007-11-15

Treatment of Pulp Stocks Using Oxidative Enzymes to Reduce Pitch Deposition

#83
20070258316
2007-11-08

Method of mixing a paper making chemical into a fiber suspension flow

#84
20070181274
2007-08-09

Method for producing paper, paperboard and cardboard

#85
20070119555
2007-05-31

Methods for reducing wax content of pulp furnish

#86
20070062662
2007-03-22

Use of synthetic metal silicates for decreasing the deposition of contaminants during a papermaking process

#87
20070017648
2007-01-25

Felt and equipment surface conditioner

#88
20060249050
2006-11-09

Additive and process for sticky control in recycled pulps

#89
20060162888
2006-07-27

Anti-staining agent for paper machine, and method for preventing stains using the same

#90
20060160166
2006-07-20

Rapid triglyceride assay for use in pulp pitch control

#91
20060124266
2006-06-15

Use of cyclodextrins for reducing deposits during paper production

#92
20060120916
2006-06-08

Inhibiting biofilm formation by thermophilic microbes in paper and board machines

#93
20060086827
2006-04-27

Liquid spray unit, method for spraying liquid using it, and chemical

#94
20060048908
2006-03-09

System for control of stickies in recovered and virgin paper processing

#95
20060000570
2006-01-05

Amphoteric cationic polymers for controlling deposition of pitch and stickies in papermaking

#96
20050173088
2005-08-11

White pitch deposit treatment

#97
20050098287
2005-05-12

Method of controlling tackiness in papermaking

#98
20050056390
2005-03-17

Gelled starch compositions and methods of making gelled starch compositions

#99
20050039873
2005-02-24

High HLB non-ionic surfactants for use as deposition control agents