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Noncrystalline, wholly aromatic polyesteramide

A wholly aromatic, polyester amide technology, applied in the field of amorphous wholly aromatic polyester amide, can solve the problems of insufficient stretchability, unusability, poor adhesion of dissimilar polymers, etc.

Inactive Publication Date: 2005-12-07
POLYPLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the experiments conducted by the present inventors, these liquid crystalline polyester amides proposed in the past show excellent physical properties to some extent and can be used for fibers, blow molded products, etc., but sometimes the stretchability is not sufficient. The adhesion of the object is poor, so it is basically not suitable for multi-layer films or multi-layer sheets, multi-layer blown products, etc., which has this disadvantage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] In the polymerization vessel that possesses stirrer, reflux column, monomer input port, nitrogen import port, decompression / outflow pipeline, pack following raw material monomer, metal catalyst (relative to the resin that produces in K + Nitrogen substitution was started with an acylating agent (1.02 times the total equivalent of the amino group and hydroxyl group) based on 30 ppm).

[0058] (A) 4-hydroxybenzoic acid 59.22g (20mol%)

[0059] (B) 161.38 g (40 mol %) of 2-hydroxyl-6-naphthoic acid

[0060] (C) Acetoxy-4-aminophenol 71.23g (20mol%)

[0061] (D) 64.81g (20 mol%) of isophthalic acid

[0062] Potassium acetate catalyst 22.5mg

[0063] Acetic anhydride 178.6g.

[0064] After charging the raw materials, the temperature of the reaction system was raised to 140°C and allowed to react at 140°C for 1 hour. Thereafter, the temperature was raised to 330° C. over 3.3 hours, and then the pressure was reduced to 10 Torr (that is, 1330 Pa) over 20 minutes. Melt poly...

Embodiment 2-10、 comparative example 2-6

[0076] The types and charging amounts of the raw material monomers are shown in Table 1-2, and polymerization was carried out in the same manner as in Example 1 except that. Tables 1-2 show these results. Regarding Comparative Examples 3 and 4, the melting point was high, and the melt viscosity and the like could not be measured under the above-mentioned implementation conditions. Regarding Comparative Example 5, the resin could not be polymerized.

[0077] Example

1

2

3

4

5

6

7

8

9

10

HBA (mol%)

20

40

40

30

26

34

20

40

40

40

HNA (mol%)

40

20

40

30

34

26

20

30

30

30

TA (mol%)

7.5

5

IA (mol%)

20

20

10

20

20

20

30

15

7.5

10

BP (mol%)

APAP(mo...

Embodiment 11

[0087] The manufacture of embodiment 11 inflation film

[0088] The polymer of Example 8 was melt-kneaded and pelletized using a twin-screw extruder (PCM30 manufactured by Ikegai Steel Co., Ltd.) at a cylinder temperature of 230° C., an extrusion rate of 8 kg / h, and a rotation speed of 150 rpm.

[0089] Next, a die with a die-core gap of 0.7 mm and a Φ25 mm was installed on Toyo Seiki's LABOPLASTMILL, and an inflatable film was produced at a resin temperature of 230°C and a die temperature of 230°C. At this time, while adjusting the amount of resin extruded, the pulling speed, and the air volume of the blower, the thickness of the wall can be reduced to the maximum within the range where the film can be stably formed, and the ratio of the film thickness to the die-core gap is obtained as a drawing. sexual indicators.

[0090] Winding speed(m / min)

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PUM

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Abstract

The invention provides an amorphous wholly aromatic polyester amide which has excellent stretching property and good adhesion to a heterogeneous polymer and thereby can be suitably used for a multilayer film, a multilayer blow molded article and the like. That is, the amorphous wholly aromatic polyester amide which is a wholly aromatic polyester amide obtained by copolymerizing (A) 4-hydroxybenzoic acid, (B) 2-hydroxy-6-naphthoic acid, (C) aromatic aminophenol and (D) aromatic dicarboxylic acid, wherein (1) the ratio of (C) the aromatic aminophenol is from 7 to 35% by mol, (2) the ratio of a bending monomer among starting material monomers is from 7 to 35 % by mol, (3) the ratio ((A) / (B)) between (A) the 4-hydroxybenzoic acid and (B) the 2-hydroxy-6-naphthoic acid is from 0.15 to 4.0, (4) the ratio of isophthalic acid is at least 35% by mol or more in (D) the aromatic dicarboxylic acid, (5) a melting point is not observed by DSC measurement at a temperature rising rate of 20 DEG C / min and (6) the glass transition temperature is from 100 to 180 DEG C.

Description

technical field [0001] This invention relates to amorphous wholly aromatic polyester amides. Moreover, it is used for multi-layer films or multi-layer sheets, multi-layer blow molded products, etc. Background technique [0002] Liquid crystal polymers are widely used as high-performance engineering plastics because they have excellent fluidity, mechanical strength, heat resistance, chemical resistance, and electrical properties in a good balance, but most of them are used exclusively through obtained by injection molding. [0003] On the other hand, with the remarkable industrial development in recent years, the applications of such liquid crystalline polymers have also expanded in various fields, and there is a tendency to be more advanced and specialized. Hollow molded products, films or sheets, fibers, etc. that can be processed efficiently and economically by blow molding, melt drawing, etc., and maintain their excellent physical properties. For example, in automobile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/44
CPCC08G69/44C08J5/18B32B27/08B32B27/32B32B27/36
Inventor 中根敏雄横田俊明坂本胜利盐饱敏雄
Owner POLYPLASTICS CO LTD
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