Invention Grant
- Patent Title: Non-chrome passivation of steel
- Patent Title (中): 非镀铬钝化钢
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Application No.: US12154502Application Date: 2008-05-23
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Publication No.: US08980015B2Publication Date: 2015-03-17
- Inventor: Andrea Keys , Jeffrey I. Melzer , Michael T. Raab
- Applicant: Andrea Keys , Jeffrey I. Melzer , Michael T. Raab
- Applicant Address: US NJ New Providence
- Assignee: Chemtall Corporation
- Current Assignee: Chemtall Corporation
- Current Assignee Address: US NJ New Providence
- Agency: McAndrews Held & Malloy
- Main IPC: C23C22/07
- IPC: C23C22/07
Abstract:
Chromate free treatments and compositions for applying a conversion or passivation coating to metal surfaces. Preferred compositions comprise a film forming latex polymer, fluoacid, phosphoric acid, and a polyoxyethylene/oxypropylene block copolymer. The requisite metal surfaces are contacted by the compositions and dried. Rinsing is optional.
Public/Granted literature
- US20080223490A1 Non-chrome passivation of steel Public/Granted day:2008-09-18
Information query
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