Process for making phenol-aldehyde resins

US4244906A · kind A · utility

Assignee

• Deutsche Texaco Aktiengesellschaft · DE

Inventors

• Karl-Heinz Heinemann
• Georg Michalczyk
• Gerd Ripkens · Kamp-Lintfort, DE

Key dates

• Filing date: May 14, 1979
• Grant date: Jan 13, 1981
• Expiry date: May 14, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L97/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Phenol-aldehyde resins are prepared by condensing phenol with formaldehyde and isobutyraldehyde in the presence of an alkali. The resulting resins are particularly suited for manufacturing products such as fiberboard and chipboard.