Invention Grant
- Patent Title: Passivation composition comprising a silane-modified silicate compound
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Application No.: US15539879Application Date: 2015-12-22
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Publication No.: US10792702B2Publication Date: 2020-10-06
- Inventor: Melanie Müller , Marcel Roth , Ingo Klüppel
- Applicant: Ewald Dörken AG
- Applicant Address: DE Herdecke
- Assignee: EWALD DÖRKEN AG
- Current Assignee: EWALD DÖRKEN AG
- Current Assignee Address: DE Herdecke
- Agency: Brannon Sowers & Cracraft PC
- Agent Edward E. Sowers
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@8cac32a
- International Application: PCT/EP2015/080979 WO 20151222
- International Announcement: WO2016/107791 WO 20160707
- Main IPC: C23C22/06
- IPC: C23C22/06 ; C23C22/48 ; B05D7/16 ; C01B33/32 ; C23C22/42 ; C23C22/83 ; C23C22/53 ; C23C22/40 ; C23C22/46 ; C23C22/00
Abstract:
The invention relates to a method for producing a silane-modified silicate. In order to obtain optimal corrosion protection properties, a silane compound according to the invention is at least partially hydrolyzed and/or condensed in the presence of a silicate compound at a pH value greater than or equal to 8 and then a pH value less than or equal to 7 is set by adding acid. The invention further relates to an aqueous acidic passivation composition for metal substrate coated with the passivation composition.
Public/Granted literature
- US20170348730A1 PASSIVATION COMPOSITION COMPRISING A SILANE-MODIFIED SILICATE COMPOUND Public/Granted day:2017-12-07
Information query
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