Functionalized tris(hydroxyphenyl) compounds

US5438142A · kind A · utility

Assignee

• Hoechst Celanese Corporation · US

Inventors

• John R. Fritsch · Port Aransas, US
• Olan S. Fruchey · Port Aransas, US
• Debasish Kuila · Port Aransas, US
• George Kvakovszky · Port Aransas, US
• Mark Murphy · Allschwil, CH
• Michael T. Sheehan · Port Aransas, US
• James R. Sounik · Port Aransas, US
• Richard Vicari · Pearland, US

Key dates

• Filing date: Aug 10, 1993
• Grant date: Aug 1, 1995
• Expiry date: Aug 10, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/0008
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds useful as polymer stabilizers which are polymerizable into condensation polymer systems are disclosed and claimed. A particularly preferred embodiment is 1-(3'-(benzotriazol-2"-yl)-4'-hydroxyphenyl)-1,1-bis(4-hydroxyphenyl)ethan e.