Age protection agents, the production thereof and the polymers which contain them

US4754066A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Josef Buysch · Krefeld, DE
• Zsolt Szentivanyi · Leverkusen, DE
• Josef Witte · Cologne, DE

Key dates

• Filing date: Mar 26, 1986
• Grant date: Jun 28, 1988
• Expiry date: Mar 26, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/37
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Compounds corresponding to the formula ##STR1## wherein R.sup.1 and R.sup.2 represent H or C.sub.1 -C.sub.4 -alkyl, PA1 R.sup.3 represents H or CH.sub.3, PA1 R.sup.4 represents C.sub.7 -C.sub.20 -aralkyl, PA1 n represents 1 or 2, and PA1 m represents an integer of from 1 to 12, are suitable as ageing protecting agents for polymers and in particular for rubbers which are non-extractable in this form and may be added to polymers.