ClassID:

120459

C23C22/188 - 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 manganese cations containing also magnesium cations

Recent Application in this class:
#1
20220162759
2022-05-26

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

#2
20210287834
2021-09-16

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

#3
20190226093
2019-07-25

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

#4
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

#5
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

#6
20170167030
2017-06-15

Method for Producing a Sandwich Structure, Sandwich Structure Produce Thereby and Use Thereof

#7
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

#8
20110086171
2011-04-14

Method for applying manganese phosphate layers

#9
20110067786
2011-03-24

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

#10
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

#11
20090233114
2009-09-17

Grain-oriented electrical steel sheet having high tensile strength insulating film and method of treatment of such insulating film

#12
20090071573
2009-03-19

PHOSPHATING SOLUTION WITH HYDROGEN PEROXIDE AND CHELATING CARBOXYLIC ACIDS

#13
20080190520
2008-08-14

Grain-oriented electrical steel sheet and method for manufacturing grain-oriented electrical steel sheet

#14
20080166575
2008-07-10

Method For Preparing Metallic Workplaces For Cold Forming