Metal coating coupling composition

US6887308B2 · kind B2 · utility

Assignee

• JohnsonDiversey, Inc. · US

Inventor

• Jun Zhang · Peachtree City, US

Key dates

• Filing date: Jan 21, 2003
• Grant date: May 3, 2005
• Expiry date: Jan 21, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D5/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A metal-coupling composition composed of silane cross-linking and coupling agents wherein the coupling agent includes a vinyl moiety. The coupling composition is a replacement for iron-phosphatizing/chromate primering and chromate primering in zinc phosphatizing processes. In a preferred embodiment, the silane cross-linking agent has the following formula: and X is a trivalent group, each Y is independently a divalent group or series of divalent groups, each Q is independently —R or —OR and each R is independently a C1-10 alkyl group or aryl group, and —OR group(s) are hydrolysable;and the silane coupling agent has the following formula: each Q is independently —R or —OR and each R is independently a C1-10 alkyl group or aryl group, and —OR group(s) are hydrolysable;