Phosphorus containing poly(arylene ether)s useful as oxygen plasma resistant films and in nonlinear optical applications

US5387629A · kind A · utility

Assignees

• Center for Innovative Technology · US
• Virginia Polytechnic Institute and State University · US
• VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. · US

Inventors

• James E. McGrath · Blacksburg, US
• Carrington Duane Smith · Slatington, US
• Duane B. Priddy, Jr. · Midland, US
• Timothy L. Pickering · Emmaus, US

Key dates

• Filing date: Jul 30, 1993
• Grant date: Feb 7, 1995
• Expiry date: Jul 30, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/23
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polymers containing the phosphine oxide moiety are identified as being particularly useful in applications where resistance to atomic oxygen etching is required and in applications where second order nonlinear optical effects will be utilized. Particularly preferred polymers for these two applications include poly(arylene ether phosphine oxide)s (PEPOS), and novel PEPOS which include phenolphthalein sub-units and derivatives thereof have been prepared.