Patent · US Active

No-rinse pretreatment methods and compositions

US10041176B2 · kind B2 · utility

0Cited by

113References

17Claims

0Family size

Assignee

Momentive Performance Materials GmbH · US

Inventors

Lingyun He · Nanhu, CN
Donald Wayne Whisenhunt, Jr. · Schenectady, US
Jeffrey I. Melzer · Lansdale, US
Andrea Eodice · Fryeburg, US
Bret Ja Chisholm · Clifton Park, US
Christopher M. Carter · Chardon, US
Shiu-Chin H. Su · Croton-on-Hudson, US
Kendall L. Guyer · Carmel, US
Matthew M. Hunter · Langhorne, US

Key dates

Filing date	Nov 30, 2005
Grant date	Aug 7, 2018
Priority date	—
Expiry date	Nov 3, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C2222/20
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Conversion and passivation coatings and methods for metal surfaces such as steel and aluminum are disclosed. The coating compositions comprise an aqueous sol of cerium oxide and/or silica particles and a ureido silane compound. The methods of the invention comprise contacting the requisite metal surface with the coating composition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.