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Polyamide ester resin, method for preparing the same and article comprising the same

A technology of polyamide ester and resin, applied in the field of polyamide ester resin, which can solve the problems of poor moisture absorption resistance, moldability, low heat resistance, etc.

Active Publication Date: 2016-12-07
LOTTE ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such copolymerization does not prevent discoloration of nylon when exposed to air at elevated temperatures
[0005] Although high heat resistant polyester products are also used instead of high heat resistant nylon for products requiring discoloration resistance, high heat resistant polyester products generally exhibit lower heat resistance than high heat resistant nylon and has disadvantages such as poor resistance to moisture absorption under humid conditions, moldability, etc., although its resistance to discoloration is excellent

Method used

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  • Polyamide ester resin, method for preparing the same and article comprising the same
  • Polyamide ester resin, method for preparing the same and article comprising the same
  • Polyamide ester resin, method for preparing the same and article comprising the same

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Embodiment 1 to Embodiment 4 and comparative example 1 to comparative example 4

[0110] According to the composition listed in Table 1, the monomer mixture, 1.49 mole parts of benzoic acid as an end-capping agent based on 100 mole parts of dicarboxylic acid and diamine, and 0.1 mole parts based on 100 parts by weight of the monomer mixture Sodium hypophosphite and 74 parts by weight of water as a catalyst are put into a 1-liter autoclave in parts by weight, and then filled with nitrogen, and the monomer mixture includes terephthalic acid (terephthalic acid) as dicarboxylic acid (diacid). TPA) and adipic acid (AA), hexamethylenediamine (HMDA) as a diamine, and ε-caprolactone as a cyclic ester compound. The components were stirred at 100°C for 60 minutes, heated to 250°C, kept for 2 hours, and heated at 25kgf / cm 2 Reaction under load for 3 hours. Then, reduce the pressure in the autoclave to 15kgf / cm 2 case, react for 1 hour. Subsequently, the resulting material is flashed to separate the water and the polyamide pre-copolymer from each other. The isolate...

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Abstract

The present invention relates to a polyamideester resin, a producing method thereof, and a molded product comprising the same. The polyamideester resin of the present invention comprises: a repetitive unit derived from dicarboxylic acid; a repetitive unit derived from diamine; and a repetitive unit represented by chemical formula 1, and has the melting temperature (Tm) of greater than or equal to 280 DEG C. The polyamideester resin has excellent moisture resistance, heat resistance, discoloration resistance, and fluidity by applying cyclic ester. In the chemical formula 1, R_1 is a linear, a branched or a cyclic alkylene group of 3 to 12 carbon atoms.

Description

technical field [0001] The present invention relates to a polyamide ester resin, a method for preparing the same, and a molded article comprising the polyamide ester resin. More specifically, the present invention relates to a highly heat-resistant crystalline polyamide ester resin exhibiting excellent properties such as moisture absorption resistance, heat resistance, and discoloration resistance due to the application of a cyclic ester, its preparation method, and A molded article comprising the polyesteramide resin. Background technique [0002] High heat-resistant nylon (nylon) can be obtained by polycondensation reaction of aromatic dicarboxylic acid or aromatic diamine. High heat-resistant nylon can have a semi-aromatic structure and a semi-crystalline structure, and can be used in various fields requiring high heat resistance because the heat resistance is significantly higher than ordinary nylon products. [0003] Specifically, since high heat-resistant nylon must ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/44C08L77/12
CPCC08G63/44C08G69/44C08J5/00C08L67/00C08L77/12
Inventor 任相均裵信孝孙受暎李基渊权素煐金俊成金秦圭朴泰俊陈永燮
Owner LOTTE ADVANCED MATERIALS CO LTD
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