Polyphenylene oligomers and polymers

US5965679A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• James P. Godschalx · Midland, US
• Duane R. Romer · Midland, US
• Ying H. So · Midland, US
• Zenon Lysenko · Midland, US
• Michael E. Mills · Midland, US
• Gary R. Buske · Midland, US
• Paul H. Townsend, III · Tucson, US
• Dennis W. Smith · Phoenix, US
• Steven J. Martin · Shoreview, US
• Robert A. DeVries · Midland, US

Key dates

• Filing date: Apr 1, 1997
• Grant date: Oct 12, 1999
• Expiry date: Apr 1, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2261/312
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An oligomer, uncured polymer or cured polymer comprising the reaction product of one or more polyfunctional compounds containing two or more cyclopentadienone groups and at least one polyfunctional compound containing two or more aromatic acetylene groups wherein at least some of the polyfunctional compounds contain three or more reactive groups. Such oligomers and uncured polymers may be cured to form cured polymers which are useful as dielectrics in the microelectronics industry, especially for dielectrics in integrated circuits.