Poly(aryl ether ketones) bearing alkylated side chains

US6372877B1 · kind B1 · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• Patrick E. Cassidy · Austin, US
• John W. Fitch, III · San Marcos, US
• Scott D. Gronewald · Burnet, US
• Anne K. St. Clair · Poquoson, US
• Diane M. Stoakley · Yorktown, US

Key dates

• Filing date: Jun 1, 2000
• Grant date: Apr 16, 2002
• Expiry date: Jun 1, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G61/121
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates generally to poly(aryl ether ketones) bearing alkylated side chains. It relates particularly to soluble, thermally stable, low dielectric poly(aryl ether ketones) with alkylated side chains and especially to films and coatings thereof. These poly(aryl ether ketones) have the following structural formula: wherein Y is selected from the group consisting of CF3 and CH3; and wherein R is CnH(2n+1) and n=11-18.