Aspartic ester functional compounds

US7759452B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Karsten Danielmeier · Solingen, DE
• Douglas A. Wicks · Mount Lebanon, US
• Karen Henderson · Dorpsstraat, US
• Evan Randall Minnich · Pittsburgh, US
• John J. McLafferty · Hicksville, US
• Stephanie Strazisar · Venetia, US
• Kurt C. Frisch · Midland, US

Key dates

• Filing date: Jan 15, 2009
• Grant date: Jul 20, 2010
• Expiry date: Jan 15, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31547
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A functional aspartate prepared by A) reacting an aziridine with a Michael-acceptor molecule to form an aziridinyl aspartate, and B) reacting the aziridinyl aspartate with an active hydrogen containing compound to form the functional aspartate. The functional aspartate can be used in adhesive, sealant or coating compositions that also include an isocyanate functional material. The composition can be used in a method of bonding a first substrate to a second substrate that includes applying a coating of the above-identified adhesive composition to at least one surface of the first substrate or the second substrate, and contacting a surface of the first substrate with a surface of the second substrate, where at least on of the contacting surfaces has the coating applied thereto. The composition can also be used to coat substrates.