Compositions for application to a metal substrate
US10876211B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Sep 16, 2011 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Nov 30, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A corrosion resistant pretreatment composition for coating a metal substrate is provided. The composition comprises an aqueous carrier, one or more Group IA metal ions, wherein at least one of the Group 1A metal ions comprises a lithium compound, a hydroxide; and a phosphate or a halide. A process for treating a metal substrate with a lithium based coating is also provided, as well as a process for treating a metal substrate with a non-chrome conversion coating process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.