D21H21/38 - CPC Classification Index

ClassID:

127012 ⎘

D21H21/38 - 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 Corrosion-inhibiting agents or anti-oxidants

Recent Application in this class:

20250122385

SOLVENT-BASED OXYGEN BARRIER COATING COMPOSITION

20240026610

METHOD FOR CONTROLLING DECOMPOSITION OF CORROSION-RESISTANT PAPER

20230313466

BARRIER PAPER OR BOARD

20220333311

Decay-resistant paper

20210309000

VAPORIZABLE ANTICORROSIVE COATING PAPER AND MANUFACTURING METHOD THEREFOR

20210017713

Nano TiO2-doped anti-ultraviolet para-aramid nano paper and preparation method thereof

20190390408

Aromatized and flavored paper products

20180353930

O2 scavenging CaCO3 treatment

20180202110

CHEMICAL COMPOSITION FOR ANTI-CORROSION MINERAL PAPER

20140305606

Sizing composition

20130065971

Method for Lowering pH Using Urea Sulfate in the Presence of Corrosion Inhibitor

20120193047

METHODS FOR REDUCING CHLORINE DIOXIDE ASSOCIATED CORROSION

20100311846

METHODS FOR CONTROLLING WATER AMOUNT IN A POLYMER COMPOSITION OR SUBSTRATE

20100230478

Anticorrosion composition

20080194008

Methods for Reducing Chlorine Dioxide Associated Corrosion

20080041545

Sanitary paper

20070187650

Antioxidant for an organic material and method for treating the same

20070098932

Anticorrosive paper or paperboard material

20050224201

Treated crimped multi-ply product

20050077020

Sanitary paper