Crosslinking of polymers with azo-esters

US4129531A · kind A · utility

Assignee

• Pennwalt Corporation · US

Inventors

• Kurt Rauer · Günzburg, DE
• Harald Hofmann · Bergneustadt, DE
• Heidelinde Schiller · Norderstedt, DE
• Chester Stephen Sheppard · Tonawanda, US

Key dates

• Filing date: Dec 14, 1977
• Grant date: Dec 12, 1978
• Expiry date: Dec 14, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/23
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A method is provided for crosslinking polymers at temperatures above 170.degree. C using azo-esters having the formula ##STR1## wherein R.sup.3 is --OOC--R, alkyl, cycloalkyl or aralkyl.