ClassID:

120483

C23C22/44 - CPC Classification

Classification description:

Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides

Recent Application in this class:
#1
20240327969
2024-10-03

SURFACE-TREATED STEEL

#2
20240209513
2024-06-27

PRE-TREATING ALUMINUM SURFACES WITH ZIRCONIUM- AND MOLYBDENUM-CONTAINING COMPOSITIONS

#3
20240043713
2024-02-08

PROCESS FOR CORROSION-PROTECTING PRETREATMENT OF A METALLIC SURFACE CONTAINING STEEL, GALVANIZED STEEL, ALUMINUM, AN ALUMINUM ALLOY, MAGNESIUM AND/OR A ZINC-MAGNESIUM ALLOY

#4
20230366097
2023-11-16

ZR, MO AND ACID-FUNCTIONAL POLYMER CONTAINING AQUEOUS COMPOSITIONS FOR TREATMENT OF METALLIC SURFACES

#5
20230332295
2023-10-19

SURFACE-TREATED STEEL SHEET FOR ORGANIC RESIN COATING AND METHOD OF PRODUCING SAME, AND ORGANIC RESIN COATED STEEL SHEET AND METHOD OF PRODUCING SAME

#6
20230193472
2023-06-22

ANTICORROSION TREATMENT SOLUTION AND USES

#7
20220261646
2022-08-18

Solution composition for steel sheet surface treatment, zinc-based plated steel sheet surface-treated with same, and manufacturing method therefor

#8
20210062346
2021-03-04

PROCESS FOR SELECTIVE PHOSPHATING OF A COMPOSITE METAL CONSTRUCTION

#9
20200385870
2020-12-10

Molybdate-based composition and conversion coating

#10
20200063267
2020-02-27

Composition and method for the chromium-free pretreatment of aluminium surfaces

#11
20190284700
2019-09-19

Method for corrosion-protective and cleaning pretreatment of metallic components

#12
20190264333
2019-08-29

Solution composition for steel sheet surface treatment, zinc-based plated steel sheet surface-treated with same, and manufacturing method therefor

#13
20190249030
2019-08-15

Process for corrosion-protecting pretreatment of a metallic surface containing steel, galvanized steel, aluminum, an aluminum alloy, magnesium and/or a zinc-magnesium alloy

#14
20190040530
2019-02-07

Zirconium pretreatment compositions containing molybdenum, associated methods for treating metal substrates, and related coated metal substrates

#15
20180371622
2018-12-27

Inorganic non-chrome aqueous treatment composition and process for coating metal surfaces

#16
20180237919
2018-08-23

PRE-TREATING ALUMINUM SURFACES WITH ZIRCONIUM-AND MOLYBDENUM-CONTAINING COMPOSITIONS

#17
20180057946
2018-03-01

Conversion coating and method of making

#18
20180002813
2018-01-04

Steel sheet for a fuel tank

#19
20170362732
2017-12-21

Surface treated steel sheet for fuel tank

#20
20170361571
2017-12-21

Steel sheet for a fuel tank

#21
20170211188
2017-07-27

Method for treating surface of zinc-aluminum-magnesium alloy-plated steel sheet

#22
20170107625
2017-04-20

Plated steel sheet

#23
20170009351
2017-01-12

Method for Coating Metal Surfaces, Substrates Coated in This Way, and Use Thereof

#24
20160083590
2016-03-24

Surface treatment composition for coated steel sheet, surface treated plated steel sheet and method of production of same, and coated plated steel sheet and method of production of same

#25
20160060765
2016-03-03

Surface processing method for aluminum heat exchanger

#26
20160040298
2016-02-11

Chemical conversion agent and metal surface treatment method

#27
20160040297
2016-02-11

Chemical conversion coated plated steel sheet and method for producing same

#28
20150361572
2015-12-17

Single-face electrogalvanized, chromium-free surface treated steel plate for fuel tank and surface treatment agent

#29
20150232996
2015-08-20

Zirconium pretreatment compositions containing lithium, associated methods for treating metal substrates, and related coated metal substrates

#30
20150225856
2015-08-13

Method for the manufacture of a substrate provided with a chromium VI-free and cobalt-free passivation

#31
20150225855
2015-08-13

Zirconium pretreatment compositions containing molybdenum, associated methods for treating metal substrates, and related coated metal substrates

#32
20150218705
2015-08-06

Conversion coating composition, surface treated steel sheet, and method for manufacturing the same

#33
20150027342
2015-01-29

Chemical conversion agent and chemical conversion coating film

#34
20150013947
2015-01-15

Surface treatment method for aluminum heat exchangers

#35
20140223740
2014-08-14

Method for treating surface of aluminum heat exchanger

#36
20130302637
2013-11-14

Zinc-based metal coated steel sheet

#37
20130284049
2013-10-31

Inorganic chromium-free metal surface treatment agent

#38
20130273389
2013-10-17

Hot-dip galvanized steel sheet and method for producing the same

#39
20130177779
2013-07-11

Method for manufacturing zinc or zinc alloy coated steel sheet and zinc or zinc alloy coated steel sheet manufactured by the method

#40
20130160898
2013-06-27

Chemical conversion coated plated steel sheet and method for producing same

#41
20130157076
2013-06-20

Chemical conversion coated plated steel sheet and method for producing same

#42
20130142941
2013-06-06

Painting pre-treatment processes with low environments impact, as an alternative to conventional phosphating treatments

#43
20130034743
2013-02-07

Aluminum or aluminum alloy material having surface treatment coating film, and method for treating a surface thereof

#44
20120168034
2012-07-05

Process for surface treating aluminum or aluminum alloy and article made with same

#45
20110132497
2011-06-09

Treatment solution for coating metal surface

#46
20110041958
2011-02-24

Chromium-free solution for treating metal surfaces

#47
20110024001
2011-02-03

Zirconium-Vanadium Conversion Coating Compositions For Ferrous Metals And A Method For Providing Conversion Coatings

#48
20100167066
2010-07-01

Self-cleaning article and a process for preparing the same

#49
20100009083
2010-01-14

Chromium-free conversion coating

#50
20100003529
2010-01-07

Surface-treated metal material and producing method thereof

#51
20090297843
2009-12-03

NON-CHROME THIN ORGANIC-INORGANIC HYBRID COATING ON ZINCIFEROUS METALS

#52
20090274926
2009-11-05

Surface-treated steel sheet

#53
20090242081
2009-10-01

Aluminum Treatment Composition

#54
20090110921
2009-04-30

Chromate-Free Surface Treated Metal Material with Excellent Corrosion Resistance, Heat Resistance, Fingermark Resistance, Conductivity, Coatability, and Blackening Resistance at the Time of Working

#55
20090068480
2009-03-12

Method for coating metal substrates with a radically polymerizable coating agent and coated substrates

#56
20090032144
2009-02-05

Pretreatment compositions and methods for coating a metal substrate

#57
20080302448
2008-12-11

WET ON WET METHOD AND CHROME-FREE ACIDIC SOLUTION FOR THE CORROSION CONTROL TREATMENT OF STEEL SURFACES

#58
20080254315
2008-10-16

Chromium-free solution for treating metal surfaces

#59
20070254123
2007-11-01

Rubber part having an aluminum-based metal component and method of producing the same

#60
20070221295
2007-09-27

Corrosion prevention method for aluminum-based metal component, and corrosion-proof aluminum-based metal product produced by the method

#61
20070125451
2007-06-07

STABLE, THIN-FILM ORGANIC PASSIVATES

#62
20070068602
2007-03-29

Zirconium-vanadium conversion coating compositions for ferrous metals and a method for providing conversion coatings

#63
20070017602
2007-01-25

Two-stage conversion treatment

#64
20060185769
2006-08-24

Treating solution for surface treatment of metal and a method for surface treatment

#65
20060173099
2006-08-03

Colored conversion layers on metal surfaces

#66
20060169363
2006-08-03

Stable, non-chrome, thin-film organic passivates

#67
20060014893
2006-01-19

Method for coating metal substrates with a radically polymerizable coating agent and coated substrates

#68
20050194574
2005-09-08

Aluminum elements and processes for the preparation of the same and chemical agents therefor

#69
20050067057
2005-03-31

Surface treating solution for surface treatment of aluminum or magnesium metal and a method for surface treatment

#70
20050003226
2005-01-06

Chemically processed steel sheet excellent in corrosion resistance