METHOD AND COMPOSITION FOR FORMING A NON-CHROME CONVERSION COATING ON STEEL SURFACE

Title:

METHOD AND COMPOSITION FOR FORMING A NON-CHROME CONVERSION COATING ON STEEL SURFACE

Document Type and Number:

WIPO Patent Application WO2006028894

Kind Code:

A3

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.

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Inventors:

KEYS ANDREA (US)
MELZER JEFF I (US)
RAAB MICHAEL T (US)

Application Number:

PCT/US2005/031091

Publication Date:

June 01, 2006

Filing Date:

August 30, 2005

Export Citation:

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Assignee:

GEN ELECTRIC (US)
KEYS ANDREA (US)
MELZER JEFF I (US)
RAAB MICHAEL T (US)

International Classes:

C23C22/36; C09D5/08; C11D1/722; C11D3/02; C11D11/00; C23C22/83

Domestic Patent References:

WO1999019083A1	1999-04-22
WO1995002660A1	1995-01-26
WO2001004224A1	2001-01-18
WO2000058228A1	2000-10-05

Foreign References:

US20040020565A1	2004-02-05
EP1130131A2	2001-09-05
US20030185990A1	2003-10-02
EP1426466A1	2004-06-09
US5458698A	1995-10-17
US5868872A	1999-02-09
US5298289A	1994-03-29
EP1136591A1	2001-09-26

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