D21H21/00 - CPC Classification Index

ClassID:

126990 ⎘

D21H21/00 - 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

Sub-classes:

D21H21/02 » Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control 99
D21H21/06 » Paper forming aids 46
D21H21/14 » characterised by function or properties in or on the paper 248
D21H21/50 » characterised by form 22

Recent Application in this class:

20240125050

2024-04-18

CIRCUIT BOARD UNWOVEN FABRIC, CIRCUIT BOARD PREPREG USING SAME AND CIRCUIT BOARD USING SAME

20180237995

2018-08-23

Article of commerce treated with sublimable material

20150299962

2015-10-22

Decorative paper for layered products

20150011457

2015-01-08

Long-lasting fragrance emitting article

20140360691

2014-12-11

Method for producing paper, board or the like and agglomerate

20130196895

2013-08-01

Long-lasting fragrance delivery system

20120301641

2012-11-29

Surface treatment of print media

20120132843

2012-05-31

USE OF COMPOSITE MATERIALS BASED ON CARBON NANOTUBES AS THICKENING AGENTS FOR AQUEOUS SOLUTIONS

20110308751

2011-12-22

Cellulose articles containing an additive composition

#10

20110112224

2011-05-12

Surface application of polymers and polymer mixtures to improve paper strength

#11

20100132901

2010-06-03

Process for improving optical properties of paper

#12

20090306276

2009-12-10

USE OF COMPOSITE MATERIALS BASED ON CARBON NANOTUBES AS THICKENING AGENTS FOR AQUEOUS SOLUTIONS

#13

20080295985

2008-12-04

Cellulose articles containing an additive composition

#14

20070054986

2007-03-08

Alkanolamine polymer salt additive for creping of fibrous webs

#15

20050065244

2005-03-24

Alkanolamine polymer salt additives for creping of fibrous webs