LIQUID-CRYSTAL POLYESTER AND MANUFACTURING PROCESS THEREFOR

WIPO Patent Application WO/2012/105469

A1

The present invention addresses the problem of providing a liquid-crystal polyester having high lightness. The present invention pertains to a liquid-crystal polyester which comprises repeating units (1) derived from an aromatic hydroxycarboxylic acid, repeating units (2) derived from an aromatic dicarboxylic acid, and repeating units (3) derived from an aromatic diol, an aromatic hydroxylamine or an aromatic diamine. In the liquid-crystal polyester, the contents of the repeating units (1), (2) and (3) are 50 to 80mol%, 10 to 25mol%, and 10 to 25mol%, respectively, relative to the sum total of all the repeating units, and the content of repeating units (A) that each have a 1,2- or 1,3-phenylene skeleton in the backbone chain is 5 to 30mol% relative to the sum total of all the repeating units. Further, the liquid-crystal polyester exhibits a flow initiation temperature of 270 to 320°C.

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SAITO SHINTARO (JP)
MATSUMI YASUO (JP)

PCT/JP2012/051921

August 09, 2012

January 30, 2012

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SUMITOMO CHEMICAL CO (JP)
SAITO SHINTARO (JP)
MATSUMI YASUO (JP)

C08G63/60; C08K3/22; C08L67/00; F21V7/22; G02F1/1335

JP2011157422A	2011-08-18
JP2011136266A	2011-07-14
JP2010168574A	2010-08-05
JP2009108180A	2009-05-21
JP2007002087A	2007-01-11

SAMEJIMA, Mutsumi et al. (JP)
Mutsumi Sameshima (JP)

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