Cheil Industries Inc.

Jin A Je

Jin Kyu Kim

Sang Kyun Im

So Young Kwon

Ki Yon Lee

Suk Min Jun

Sung Chul Choi

Seung Youb Bang

A crystalline polyamide ester resin is prepared by copolymerizing (A) a dicarboxylic acid component, (B) a diamine component, and (C) a cyclic aliphatic diol component, and has a structure in which a dicarboxylic acid moiety derived from the dicarboxylic acid component (A), a diamine moiety derived from the diamine component (B) and a cyclic aliphatic diol moiety derived from the cyclic aliphatic diol component (C) are repeated. A molar ratio ((B):(C)) of the diamine component (B) to the cyclic aliphatic diol component (C) is about 80 to about 99:about 1 to about 20. The crystalline polyamide ester resin has a melting point (Tm) ranging from about 280&#xb0; C. to about 320&#xb0; C. and a crystallization temperature (Tc) ranging from about 260&#xb0; C. to about 290&#xb0; C. The crystalline polyamide ester resin can have excellent heat resistance, discoloration resistance and moldability.

Crystalline polyamide ester resin, method for preparing the same, and article including the same

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Uiwang-si, South Korea

Jin A Je