EP 4353867 A2 20240417 - SYSTEM FOR NICKEL-FREE ZINC PHOSPHATE PRETREATMENT
Title (en)
SYSTEM FOR NICKEL-FREE ZINC PHOSPHATE PRETREATMENT
Title (de)
SYSTEM ZUR NICKELFREIEN ZINKPHOSPHATVORBEHANDLUNG
Title (fr)
SYSTÈME DE PRÉTRAITEMENT DE PHOSPHATE DE ZINC SANS NICKEL
Publication
Application
Priority
- US 201615137014 A 20160425
- EP 17722292 A 20170425
- US 2017029487 W 20170425
Abstract (en)
Disclosed is a substrate pretreatment system, comprising (a) an activating rinse for treating at least a portion of a substrate comprising a dispersion of metal phosphate particles having a D<sub>90</sub> particle size of no greater than 10 µm, wherein the metal phosphate comprises divalent or trivalent metals or combinations thereof; and (b) a pretreatment composition for treating at least a portion of the substrate treated with the activating rinse, comprising zinc ions and phosphate ions, wherein the pretreatment composition is substantially free of nickel. Methods of treating a substrate with the substrate pretreatment system also are disclosed. Substrates treated with the substrate pretreatment system also are disclosed.
IPC 8 full level
C23C 22/78 (2006.01)
CPC (source: EP KR RU US)
C23C 22/12 (2013.01 - EP KR RU US); C23C 22/60 (2013.01 - KR US); C23C 22/62 (2013.01 - KR US); C23C 22/68 (2013.01 - KR US); C23C 22/73 (2013.01 - KR US); C23C 22/78 (2013.01 - EP KR RU US); C25D 5/36 (2013.01 - KR US)
Citation (applicant)
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Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2017306497 A1 20171026; AU 2017257846 A1 20181122; BR 112018071921 A2 20190205; CA 3021999 A1 20171102; CN 109072443 A 20181221; CN 109072443 B 20201106; EP 3449035 A1 20190306; EP 3449035 B1 20240228; EP 4353867 A2 20240417; ES 2972322 T3 20240612; KR 20190002546 A 20190108; KR 20210114550 A 20210923; MX 2018012976 A 20190117; RU 2018141232 A 20200526; RU 2018141232 A3 20200526; RU 2728341 C2 20200729; SG 11201808794Q A 20181129; WO 2017189627 A1 20171102
DOCDB simple family (application)
US 201615137014 A 20160425; AU 2017257846 A 20170425; BR 112018071921 A 20170425; CA 3021999 A 20170425; CN 201780025671 A 20170425; EP 17722292 A 20170425; EP 24153582 A 20170425; ES 17722292 T 20170425; KR 20187033806 A 20170425; KR 20217028599 A 20170425; MX 2018012976 A 20170425; RU 2018141232 A 20170425; SG 11201808794Q A 20170425; US 2017029487 W 20170425