ClassID:

120449

C23C22/08 - 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

Sub-classes:
Recent Application in this class:
#1
20250075331
2025-03-06

Dyed Trivalent Chromium Conversion Coatings and Methods of Using Same

#2
20250027205
2025-01-23

Method for passivating a surface of a workpiece and apparatus for passivating workpieces

#3
20230212755
2023-07-06

SURFACE COATING FOR DEGRADABLE MAGNESIUM AND MAGNESIUM ALLOYS AND METHOD FOR PREPARING THE SAME

#4
20230175090
2023-06-08

GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#5
20210388504
2021-12-16

Surface treatment solution composition containing trivalent chromium and inorganic compound, and method for manufacturing hot dip galvanized steel sheet surface-treated using same

#6
20210310096
2021-10-07

Method for manufacturing a grain-oriented electrical steel sheet

#7
20210202145
2021-07-01

ELECTRICAL STEEL SHEET HAVING INSULATING COATING, METHOD FOR PRODUCING THE SAME, TRANSFORMER CORE AND TRANSFORMER USING THE ELECTRICAL STEEL SHEET, AND METHOD FOR REDUCING DIELECTRIC LOSS IN TRANSFORMER

#8
20200291245
2020-09-17

REACTIVE COATING MATERIAL FOR STEEL MATERIAL PROVIDING HIGH CORROSION RESISTANCE

#9
20200141005
2020-05-07

Dyed trivalent chromium conversion coatings and methods of using same

#10
20180312977
2018-11-01

Treatment device for pickling and phosphating metal parts, and treatment method, and treatment plant for galvanizing the metal parts

#11
20180216234
2018-08-02

Dyed trivalent chromium conversion coatings and methods of using same

#12
20180155840
2018-06-07

Insulating coating for electrical steel sheet

#13
20180119244
2018-05-03

GRAIN-ORIENTED ELECTRICAL STEEL SHEET, MANUFACTURING METHOD THEREFOR, AND METHOD FOR PREDICTING TRANSFORMER NOISE PROPERTY

#14
20170362732
2017-12-21

Surface treated steel sheet for fuel tank

#15
20170342568
2017-11-30

Electrical steel sheet

#16
20170335464
2017-11-23

Electrical steel sheet

#17
20170051414
2017-02-23

Treatment device and treatment method for pickling and phosphating metal parts

#18
20160322138
2016-11-03

Coating agent for electrical steel sheet, manufacturing method therefor and electrical steel sheet coating method using same

#19
20150368158
2015-12-24

Solution for forming insulation coating and grain-oriented electrical steel sheet

#20
20150228387
2015-08-13

Powder for powder magnetic core, and powder magnetic core

#21
20150217545
2015-08-06

Aluminum resin bonded body and method for producing same

#22
20140290802
2014-10-02

Surface treatment method and coating method for steel material, and method for producing machine component

#23
20140102907
2014-04-17

Tin-plated steel sheet and method for manufacturing the same

#24
20130213896
2013-08-22

Methods for treating a ferrous metal substrate

#25
20130075271
2013-03-28

Protection of magnesium alloys by aluminum plating from ionic liquids

#26
20120301709
2012-11-29

HOT DIP GALVANNEALED STEEL SHEET

#27
20120231281
2012-09-13

ALUMINUM ALLOY ARTICLE, ALUMINUM ALLOY MEMBER, AND METHODS FOR PRODUCING THE SAME

#28
20120076940
2012-03-29

Methods for treating a ferrous metal substrate

#29
20120070674
2012-03-22

Method for coating metal surfaces in a multi-step method

#30
20120031531
2012-02-09

Hot dip galvanized steel sheet and method for manufacturing same

#31
20120015207
2012-01-19

Copper prerinse for electrodepositable coating composition comprising yttrium

#32
20110297549
2011-12-08

ALUMINUM ALLOY-AND-RESIN COMPOSITE AND METHOD FOR MAKING THE SAME

#33
20110223316
2011-09-15

USE OF FLUORESCING DYE IN PRETREATMENT TO IMPROVE APPLICATION AND RINSING PROCESS

#34
20110180185
2011-07-28

Tinned steel sheet and method for producing the same

#35
20110168563
2011-07-14

TIN-PLATED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

#36
20110162556
2011-07-07

CHROMIUM (III)-CONTAINING AQUEOUS SOLUTION AND PROCESS FOR PRODUCING THE SAME

#37
20110146847
2011-06-23

Chemical conversion treatment liquid

#38
20110100512
2011-05-05

Quaternary ammonium salts as a conversion coating or coating enhancement

#39
20110030738
2011-02-10

Copper alloy plumbing hardware, such as valves and tube couplings, and the treatment method for reducing elution of lead

#40
20100297344
2010-11-25

Passivating means, surface treatment means, surface treatment spray means and method for treating metallic surfaces of work pieces or cast molds

#41
20100285273
2010-11-11

Acrylic rubber-metal composite

#42
20100239773
2010-09-23

Aqueous treating solution for Sn-based plated steel sheet excellent in corrosion resistance and paint adhesion, and production method of surface-treated steel sheet

#43
20100196726
2010-08-05

MAGNESIUM ALLOY MATERIAL, AND METHOD FOR TREATMENT OF SURFACE OF MAGNESIUM ALLOY MATERIAL

#44
20100154673
2010-06-24

Compositions and processes for deposition of metal ions onto surfaces of conductive substrates

#45
20100101962
2010-04-29

Immersion method

#46
20090324839
2009-12-31

Method of passivating metallic surfaces by means of copolymers having phosphoric acid and/or phosphonic acid groups

#47
20090304937
2009-12-10

Compositions and Method for Coating Metal Surfaces With an Alkoxysilane Coating

#48
20090239063
2009-09-24

Method of manufacturing hot dip galvannealed steel sheet and hot dip galvannealed steel sheet

#49
20090208764
2009-08-20

Grain-oriented electrical steel sheet having insulating film not containing chromium and insulating film agent of same

#50
20090155621
2009-06-18

Tin-plated steel sheet

#51
20090084471
2009-04-02

Methods for treating a ferrous metal substrate

#52
20090011274
2009-01-08

Coated Steel Sheet, Finished Product, Panel for Use in Thin Television Sets, and Method for Manufacturing Coated Steel Sheet

#53
20090007990
2009-01-08

METHOD FOR PASSIVATING METALLIC SURFACES BY USING ITACONIC ACID HOMOPOLYMERS OR COPOLYMERS

#54
20080302267
2008-12-11

COMPOSITIONS AND PROCESSES FOR DEPOSITION OF METAL IONS ONTO SURFACES OF CONDUCTIVE SUBSTRATES

#55
20080257202
2008-10-23

Rust-Removing/Preventing Agent, and Rust-Removing Method Using the Same

#56
20080220281
2008-09-11

Copper alloy plumbing hardware, such as valves and tube couplings, and the treatment method for reducing elution of lead

#57
20070267106
2007-11-22

Iron phosphating process that reduces laser scale resulting in improved paint adhesion

#58
20070082193
2007-04-12

Essentially chromium-free method for passivating metallic surfaces consisting of Zn, Zn alloys, Al or Al alloys

#59
20070034606
2007-02-15

Method for pickling metallic surfaces by using alkoxylated alkynols

#60
20070003706
2007-01-04

Hot dip galvanized steel sheet and method for manufacturing same

#61
20060257572
2006-11-16

Surface treatment for metal-polymer laminated electrochemical cell package

#62
20060237097
2006-10-26

Immersion method

#63
20060151071
2006-07-13

Quaternary ammonium salts as a conversion coating or coating enhancement

#64
20050287389
2005-12-29

Method for preventing elution of lead and/or nickel from copper alloy piping material such as valve or pipe joint and copper alloy piping material, and fluid for use in cleaning piping material

#65
20050233211
2005-10-20

Surface treatment for metal-polymer laminated electrochemical cell package

#66
20050228157
2005-10-13

Thermoplastic elastomer bonded directly to metal substrate

#67
20050147832
2005-07-07

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

#68
20050126427
2005-06-16

Polymer derivatives for treating metals

#69
20050121114
2005-06-09

Polymer derivatives for the treatment of metals

#70
20050113559
2005-05-26

Conducting polymer for pretreatment of metallic and non-metallic surfaces