Curing agents for fluoroelastomers

US9908992B2 · kind B2 · utility

Assignee

• E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

• Peter Anthony Fox · Wilmington, US
• Stephen E. Burkhardt · Wilmington, US
• Christopher P. Junk · Wilmington, US
• Shuhong Wang · Hockessin, US

Key dates

• Filing date: Sep 26, 2015
• Grant date: Mar 6, 2018
• Expiry date: Sep 8, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/3415
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Curing fluoroelastomers with curing agents of formulas (I), (II), (III), and (IV):wherein each of R1, R2, R3, R4, R6, R7, R8, and R9, is selected from the group consisting of H; halogen atom; C1 to C4 alkyl groups in which the alkyl group is linear, branched, or cyclic; OR′; and aromatic groups;