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Method for producing polyarylate

A manufacturing method and technology of polyarylate, which is applied in the field of polyarylate manufacturing, can solve the problems such as unrecorded mixer, unrecorded polyarylate manufacturing method, etc., and achieve the effects of increased strength and high utilization value

Active Publication Date: 2016-12-14
MITSUBISHI GAS CHEM CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Patent Document 3 does not relate to a method for producing resins, let alone a method for producing polyarylates.
[0008] In Patent Document 4, as the stirring device used, various stirrers including a reciprocating rotary stirrer are listed, but a preferred stirrer is not described.
In addition, Patent Document 4 does not relate to a method for producing aliphatic polyester, and does not describe a method for producing polyarylate at all.

Method used

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  • Method for producing polyarylate
  • Method for producing polyarylate
  • Method for producing polyarylate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] In the tank-type reaction vessel, as a stirrer, a reciprocating rotary stirrer AJITER (registered trademark of Shimazaki Seisakusho Co., Ltd.) was equipped with triangular blades. Among them, 49 g (0.21 moles) of 2,2-bis(4-hydroxyphenyl) propane (hereinafter, abbreviated as BPA) as a dihydric phenol, and 49 g (0.21 mol) of p-tert-butylphenol (hereinafter, abbreviated as BPA) as a terminal terminator Denoted as PTBP.) 0.63 g (0.0042 mol), 1 mol % (0.67 g) of tri-n-butylbenzyl ammonium chloride (hereinafter, abbreviated as TBBAC) as a polymerization catalyst relative to all dihydric phenols was dissolved In 730ml of 3w / w% sodium hydroxide aqueous solution (water phase). Separately, 44 g (0.22 mol) of a mixture of terephthaloyl dichloride / isophthaloyl dichloride = 1 / 1 (hereinafter, abbreviated as MPC) was dissolved in 530 ml of dichloromethane (organic phase).

[0058] Adjust the stirring power of the mixer to 7kW / m 3 The organic phase was added to the aqueous phase unde...

Embodiment 2

[0060] In Example 1, instead of BPA as the dihydric phenol, 55 g (0.21 moles) of 2,2-bis(4-hydroxy-3-methylphenyl)propane (hereinafter abbreviated as BPC) was used. The same operation as in Example 1 was carried out to obtain a polyarylate resin.

Embodiment 3

[0062] In Example 1, 57.5 g (0.21 moles) of 1,1-bis(4-hydroxyphenyl)cyclohexane (hereinafter abbreviated as BPZ) was used instead of BPA as a dihydric phenol, and PTBP as a terminal terminator was used. Except having changed it into 0.51 g (0.0034 mol), it carried out similarly to Example 1, and obtained the polyarylate resin.

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Abstract

According to a preferred embodiment of the present invention there can be provided a method of manufacturing a polyacrylate comprising a bivalent phenyl component and an aromatic dicarboxylic acid component, wherein in an interfacial polymerization reaction step, interface polymerization is performed using a reciprocating rotating mixer in the presence of a polymerization catalyst expressed by formula (1) (in the formula, n represents either 2, 3, or 4; Y represents an ethyl, propyl, butyl, or benzyl; and X represents Cl, Br, OH, or HSO4).

Description

technical field [0001] The present invention relates to a method for producing polyarylate, and particularly to a method for producing polyarylate having a polystyrene-equivalent weight average molecular weight of not less than 20,000 and less than 150,000. Background technique [0002] Polyarylate has excellent mechanical properties, electrical properties, etc., and is widely used as an engineering plastic in various fields such as the field of electrical and electronic equipment, the field of automobiles, and the field of OA equipment. In particular, polyarylate with a polystyrene-equivalent weight average molecular weight of more than 20,000 and less than 150,000 has high strength when used as a coating material, and has extremely high industrial utilization value. [0003] Polyarylate is produced using a known polyester polymerization method using dihydric phenol, aromatic dicarboxylic acid or their derivatives as raw materials. Examples of the polymerization method inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/79
CPCC08G63/785C08G63/79
Inventor 杉山源希小川典庆
Owner MITSUBISHI GAS CHEM CO INC
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