Thermally stable polymers, method of preparation, and articles made therefrom

USRE40508E1 · kind E1 · reissue

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Daniel J. Brunelle · Scotia, US
• Joseph Anthony Suriano · Clifton Park, US
• Taeseok Jang · Troy, US
• Tiberiu Mircea Sielovan · Schenectady, US
• Edward Pickett · Schenectady, US
• Gregory Allen O'Neil · Clifton Park, US

Key dates

• Filing date: Aug 15, 2003
• Grant date: Sep 16, 2008
• Expiry date: Aug 15, 2023

Classification

• Technology area (CPC —): General

Abstract

Thermally stable polymers comprising resorcinol arylate chain members are prepared using an interfacial method comprising the steps of: (a) combining at least one resorcinol moiety and at least one catalyst in a mixture of water and at least one organic solvent substantially immiscible with water; and (b) adding to the mixture from (a) at least one dicarboxylic acid dichloride while maintaining the pH between 3 and 8.5 through the presence of an acid acceptor, wherein the total molar amount of acid chloride groups is stoichiometrically deficient relative to the total molar amount of phenolic groups.