Polymerization catalyst for polyester production, polyester and process for producing polyester

A polymerization catalyst and catalyst technology are applied in the fields of polyester polymerization catalyst, polyester and polyester preparation, and can solve the problems of technical difficulties, increased cost and the like

Inactive Publication Date: 2002-01-09
TOYOBO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of using this supercritical fluid is not preferred because it involves technical difficulties and increased costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 Embodiment 1-1

[0254] The two (2-hydroxyethyl) terephthalates of 8900 parts by weight are mixed with the ethylene glycol solution of lithium acetate of 0.23 parts by volume, and then add 0.1% (molar ratio) based on the acid component in the polyester Quinilizarin (A) was stirred at 245°C for 10 minutes under normal pressure. The temperature was raised to 275° C. within 50 minutes, while the pressure of the reaction system was gradually reduced to 0.1 Torr. Polymerization was carried out under this pressure and at the same temperature for 180 minutes. The parameters (IV) of the final polymer are shown in Table 1-1. Examples 1-2 to 1-18

Embodiment 1-2 to 1-18

[0255] Polymerization was carried out using conditions similar to those of Example 1-1, except that other organic compound components were used instead of quinalizarin to obtain a polyester. The physical parameters of the obtained polymer are shown in Table 1-1. The organic compounds used are (A) quinalizarin, (B) alizarin, (C) emodine (Emodine), (D) 1,4-diaminoanthraquinone, (E) 1,8-diamino-4 , 5-dihydroxyanthraquinone, (F) 5,8-dihydroxy-1,4-naphthoquinone, (G) 2,5-dihydroxybenzoquinone, (H) deoxyalizarin, (I) 4,5 -Sodium dihydroxynaphthalene-2,7-disulfonate, (J) esculetin, (K) morin, (L) epicatechin gallate, (M) methylene-bridged novolac compound (monomer-100 polymer mixture), (N) methylene bridged linear p-butylphenol compound (monomer-100 polymer mixture), (O) Calix[8] arene, (P ) p-tert-butyl Calix[8]arene, (Q) 2,2'-bisphenol, (R) 2,2'-dihydroxydiphenylether, which are indicated by symbols in the table. Comparative Example 1-1

Embodiment 1-19

[0258]Two (2-hydroxyethyl) terephthalates of 8900 parts by weight are mixed with the ethylene glycol solution of 5g / L sodium acetate of 0.29 parts by volume, and then added based on 0.1% (molar ratio) of the acid component in the polyester Quinilizarin (A) was stirred at 245°C for 10 minutes under normal pressure. The temperature was raised to 275° C. within 50 minutes, while the pressure of the reaction system was gradually reduced to 0.1 Torr. Polymerization was carried out under this pressure and at the same temperature for 180 minutes. The parameters of the final polymer are shown in Table 1-2. Examples 1-20 to 1-36

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Abstract

A polymerization catalyst for polyester production which consists mainly of ingredients other than antimony compounds and germanium compounds, has excellent catalytic activity, and gives a polyester which, even without undergoing catalyst deactivation or removal, is effectively inhibited from thermally deteriorating during melt processing and has excellent thermal stability; a polyester obtained by using the catalyst; and a process for producing a polyester with the catalyst. The catalyst contains neither antimony nor germanium, has an activity parameter (AP) satisfying AP (min) < 2T (min), gives polyethylene terephthalate having an index of thermal stability (TD, %) satisfying TD<25, and comprises a metallic ingredient and an organic compound ingredient containing an Ar-O- and / or Ar-N< unit. The polyester is usable as, e.g., various molded articles such as a fiber, film, sheet, and hollow molding.

Description

field of invention [0001] The present invention relates to polyester polymerization catalysts, polyesters prepared using the same, processes for the preparation of polyesters, products using these polyesters such as fibers, moldings and films, and more particularly, the present invention relates to compounds that do not use germanium or antimony Novel polyester polymerization catalysts, polyesters prepared therefrom, processes for the preparation of polyesters, products such as fibers, molded articles and films using these polyesters. Background of the invention [0002] The present invention below describes polyesters with various compositions, which are widely used in various industrial fields. [0003] Polyethylene terephthalate (hereinafter abbreviated as PET) has good mechanical properties, chemical properties, transparency, heat resistance and gas barrier properties, and can be used in various products such as fibers for clothing and industrial materials, packaging Or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/82C08G63/83C08G63/84C08G63/85C08G63/87D01F6/62
CPCC08G63/826C08G63/87D01F6/62C08G63/85C08G63/84C08G63/83C08G63/82
Inventor 中嶋孝宏形舞祥一田口裕朗
Owner TOYOBO CO LTD
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