ClassID:

120451

C23C22/12 - 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 phosphates; Orthophosphates containing zinc cations

Sub-classes:
Recent Application in this class:
#1
20250171906
2025-05-29

METHOD FOR TREATING A PART MADE OF IRON ALLOY FOR IMPROVING THE ANTI-CORROSION PROPERTIES THEREOF

#2
20240166968
2024-05-23

ONE-STEP PRETREATMENT METHOD OF METALLIC SUBSTRATES AT NON-NEUTRAL PH VALUES FOR METAL COLD FORMING

#3
20240035129
2024-02-01

Non-oriented electrical steel sheet and method for manufacturing same

#4
20230243060
2023-08-03

THERMALLY MODIFIED OXIDE BASED PRETREATMENTS FOR METALS AND METHODS OF MAKING THE SAME

#5
20230138051
2023-05-04

Al-plated hot stamped steel material

#6
20220290303
2022-09-15

RESOURCE-SAVING METHOD FOR ACTIVATING A METAL SURFACE PRIOR TO PHOSPHATING

#7
20220282381
2022-09-08

RESOURCE-SAVING METHOD FOR ACTIVATING A METAL SURFACE PRIOR TO PHOSPHATING

#8
20220275481
2022-09-01

HOT STAMPED STEEL

#9
20220162759
2022-05-26

Coated metal, coating-forming treatment solution, and method for producing coated metal

#10
20220049358
2022-02-17

TREATED PARTICLES AND SUBSTRATES

#11
20210287834
2021-09-16

Grain-oriented magnetic steel sheets having chromium-free insulating tension coating, and methods for producing such steel sheets

#12
20210123113
2021-04-29

Method for treating and phosphatizing metal board without using acid

#13
20210087693
2021-03-25

Aqueous dispersion for activating a metal surface and method for the phosphating thereof

#14
20210062356
2021-03-04

CONVEYING RACK CLEANING IN AN ELECTRODEPOSITION PROCESS

#15
20200400255
2020-12-24

Threaded connection for pipes and method for producing threaded connection for pipes

#16
20200248313
2020-08-06

Two-step pretreatment system and method

#17
20190255646
2019-08-22

Electric resistance welded steel pipe having identifiable seam portion and method for manufacturing the same

#18
20190226093
2019-07-25

Coated metal, coating-forming treatment solution, and method for producing coated metal

#19
20190211456
2019-07-11

SURFACE TREATED STEEL STRIP AND MANUFACTURING METHOD OF SURFACE TREATED STEEL STRIP

#20
20190003620
2019-01-03

Threaded connection for pipe or tube and method of producing the threaded connection for pipe or tube

#21
20180371621
2018-12-27

Treatment solution for chromium-free tension coating, method for forming chromium-free tension coating, and grain oriented electrical steel sheet with chromium-free tension coating

#22
20180371620
2018-12-27

Treatment solution for chromium-free tension coating, method for forming chromium-free tension coating, and grain oriented electrical steel sheet with chromium-free tension coating

#23
20180251899
2018-09-06

INSULATIVE COATING PROCESSING LIQUID AND METHOD FOR MANUFACTURING METAL HAVING INSULATIVE COATING

#24
20180171483
2018-06-21

COATING STRUCTURE, IMPELLER, COMPRESSOR, METAL PART MANUFACTURING METHOD, IMPELLER MANUFACTURING METHOD, AND COMPRESSOR MANUFACTURING METHOD

#25
20180155840
2018-06-07

Insulating coating for electrical steel sheet

#26
20180080127
2018-03-22

Insulating-coated oriented magnetic steel sheet and method for manufacturing same

#27
20180044796
2018-02-15

TWO-STEP PRETREATMENT SYSTEM AND METHOD

#28
20180036830
2018-02-08

Electric resistance welded steel pipe having identifiable seam portion and method for manufacturing the same

#29
20170342568
2017-11-30

Electrical steel sheet

#30
20170306498
2017-10-26

ACTIVATING RINSE AND METHOD FOR TREATING A SUBSTRATE

#31
20170292171
2017-10-12

Heat treated steel product having high strength and excellent chemical conversion coating ability and method of production of same

#32
20160305026
2016-10-20

Treatment solution for chromium-free tension coating, method for forming chromium-free tension coating, and grain oriented electrical steel sheet with chromium-free tension coating

#33
20150079298
2015-03-19

Process for coating metallic surfaces with coating compositions containing particles of a layered double hydroxide

#34
20140305903
2014-10-16

Method for manufacturing a bonded body of galvanized steel sheet and adherend

#35
20140023882
2014-01-23

Multi-stage anti-corrosion treatment of metal components having zinc surfaces

#36
20130136947
2013-05-30

DRY-IN-PLACE CORROSION-RESISTANT COATING FOR ZINC OR ZINC-ALLOY COATED SUBSTRATES

#37
20120080121
2012-04-05

Method for passivating metallic surfaces with aqueous compositions comprising surfactants

#38
20110146847
2011-06-23

Chemical conversion treatment liquid

#39
20110017352
2011-01-27

Continuous method for treating the surface of metal strips

#40
20110008644
2011-01-13

BONDED BODY OF GALVANIZED STEEL SHEET AND ADHEREND, AND MANUFACTURING METHOD THEREOF

#41
20100224286
2010-09-09

METHOD FOR COATING ZINC-PLATED STEEL STRIPS WITH AQUEOUS FORMULATIONS OF ACIDIC POLYMERS

#42
20100206437
2010-08-19

Treatment solution for insulation coating for grain oriented electrical steel sheet and method for producing grain oriented electrical steel sheet having insulation coating

#43
20090032148
2009-02-05

High-strength hot-rolled steel sheet excellent in chemical treatability

#44
20080199714
2008-08-21

Method for the passivation of metal surfaces with compositions comprising polymers with acid groups and waxes

#45
20080197020
2008-08-21

Method for Producing Painted, Flat Metallic Moulded Bodies

#46
20070298980
2007-12-27

Thermal spray membrane contact material, contact member and contact part, and apparatuses to which they are applied

#47
20070240792
2007-10-18

Method for the passivation of metal surfaces with polymers containing acid groups

#48
20060257572
2006-11-16

Surface treatment for metal-polymer laminated electrochemical cell package

#49
20050233211
2005-10-20

Surface treatment for metal-polymer laminated electrochemical cell package

#50
20050208224
2005-09-22

Method for applying an anti-corrosion coating to especially corrosion exposed parts in rock drill equipment

#51
20050147832
2005-07-07

Surface-treated steel sheets of good white rust resistance, and method for producing them

#52
20050051975
2005-03-10

Thermal spray membrane contact material, contact member and contact part, and apparatuses to which they are applied