Thermotropic liquid crystalline poly(ester-amides)

US5319064A · kind A · utility

Assignees

• Univ. of Mass. at Amherst · US
• Akzo N.V. · NL

Inventors

• Thomas F. McCarthy · Manchester Center, US
• Robert W. Lenz · Hochdorf-Assenheim, DE
• Simon W. Kantor · Agawam, US
• Ki-Soo Kim · Seoul, KR
• Sophia Dashevsky · Fair Lawn, US

Key dates

• Filing date: Oct 6, 1992
• Grant date: Jun 7, 1994
• Expiry date: Oct 6, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G69/44
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Thermotropic liquid crystalline poly(ester-amide) compositions are disclosed which comprise a bis(4-carbonyl phenylene) terephthalate unit and a unit derived from an N-substituted hydrocarbylenediamine (e.g., one derived from an N,N-dialkylalkylene).