Thermotropic liquid crystalline polyester compositions

Details Thermotropic liquid crystalline polyester compositions Thermotropic liquid crystalline polyester compositions

C - Chemistry, Metallurgy

08

G

C08G 63/199 (2006.01) C08G 63/60 (2006.01) C09K 19/38 (2006.01)

Patent

CA 2057234

This invention relates to thermotropic liquid crystalline polyester compositions containing recurring units derived from hydroquinone, 4-4'-dihydroxybiphenyl, terephthalic acid, 2,6-naphthalenedicarboxylic acid, and 4-hydroxybenzoic acid which are characterized as having melting points less than 365°C, breaking elongations greater than or equal to 1.5%, and heat distortion temperatures greater than 200°C. This invention further relates to the same compositions containing 20 to 40 weight percent of at least one glass reinforcing/filling agent and which are characterized as having melting points less than 365°C, breaking elongations greater than or equal to 2.0%, and heat distortion temperatures greater than 230°C. The compositions are useful as films, fibers, and shaped or molded articles.

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