Polyamide elastomer composition, and fiber and molded article comprising same

A polyamide elastomer, lactam compound technology, applied in the direction of one-component polyamide rayon, textiles and papermaking, fasteners, etc., can solve the problems of easy dye shedding, poor dye reactivity, low weather resistance, etc. The effect of excellent dyeing fastness and excellent dyeability

Active Publication Date: 2018-10-23
UBE IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since polyurethane has low weather resistance, the decrease in physical properties due to long-term use is large.
In addition, dyeability is also lacking, and on the basis of requiring a special dyeing method, the reactivity of the dye is also poor, so the dye is easy to fall off, and the dyeing fastness is insufficient
Therefore, it is difficult to apply in applications requiring colorful color development

Method used

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  • Polyamide elastomer composition, and fiber and molded article comprising same
  • Polyamide elastomer composition, and fiber and molded article comprising same
  • Polyamide elastomer composition, and fiber and molded article comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0162] Polyamide Elastomer Manufacturing Process

[0163] Put 12-aminododecanoic acid (manufactured by Ube Industries, Ltd.) 17.54 into a pressure vessel with a capacity of 70 liters equipped with a stirrer, a thermometer, a torque gauge, a pressure gauge, a nitrogen inlet, a pressure regulator, and a polymer outlet. kg, adipic acid (manufactured by Asahi Kasei Co., Ltd.) 0.30 kg, XYX type triblock polyether diamine (manufactured by HUNTSMAN: ELASTAMINE RT-1000) 2.09 kg, Irganox 245 (manufactured by BASF JAPAN) 0.06 kg, and phosphorous acid (manufactured by Taihei Chemical Industry Co., Ltd.) 0.004 kg. After the inside of the container was fully replaced with nitrogen, the pressure in the container was adjusted to 0.05 MPa while supplying nitrogen gas at 200 liters / hour, and the temperature in the container was raised from room temperature to 230° C. over 1 hour, and the pressure in the container was maintained at 0.05 while performing polymerization at 230°C.

[0164] The a...

Embodiment 2～4、 comparative example 2、3

[0172] In the polyamide elastomer manufacturing process of Example 1, the amount of phosphorous acid charged was changed as shown in the table below, and 250 minutes after the temperature in the tank reached 230°C was regarded as the polymerization end point. Polymerized to obtain pellets.

[0173] At this time, the stirring current value at the polymerization start point was subtracted from the stirring current value at the polymerization end point to check the degree of increase in the stirring current value. In general, as the degree of polymerization increases, the stirring current value also tends to increase, so it is used as an index for controlling the degree of polymerization. The results are shown in Table 1.

[0174] Next, spinning was performed by the same method as in the "spinning step" described in Example 1 using the obtained pellets.

[0175] [Table 1]

[0176]

[0177] In Comparative Example 1, although the degree of polymerization also increased and pe...

Embodiment 5～6、 comparative example 4

[0180] Dyeability was confirmed using the difference in the amount of amino terminal groups. Comparative Example 4 A polyamide elastomer was obtained in the same manner as in Example 1, except that the amount of adipic acid added in the polyamide elastomer manufacturing process was 0.39 kg. In Example 5, a polyamide elastomer was obtained by the same method as in Example 1. In Example 6, a polyamide elastomer was obtained as in Example 1 except that the amount of ELASTAMINE RT-1000 added was 3.00 kg. Furthermore, according to the spinning step of Example 1, the polyamide elastomer obtained above was melt spun to obtain polyamide elastomer fibers. The obtained fiber was used to produce a tube knitted fabric, and the dyeability and color fastness were evaluated according to the above-mentioned evaluation method. The evaluation results are shown in Table 2.

[0181] [Table 2]

[0182]

[0183] When the color fastness was evaluated according to "5. Color fastness", the colo...

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Abstract

Provided is a polyamide elastomer composition capable of imparting excellent stability, dyeability, and color fastness to various molded articles. The polyamide elastomer composition contains a polyamide elastomer and a phosphorus acid compound, wherein the polyamide elastomer contains constituent unit 1 derived from a diamine compound represented by formula (1), constituent unit 2 derived from anaminocarboxylic acid compound represented by formula (2) or a lactam compound represented by formula (3), and constituent unit 3 derived from a dicarboxylic acid compound represented by formula (4),and the content rate of the phosphorus acid compound is 0.02-0.15 mass% with respect to the polyamide elastomer, and the terminal amino group concentration of the polyamide elastomer is 2.0*10-5 eq / gor more (x represents an integer of 1-20, y represents an integer of 4-50, z represents an integer of 1-20, R1 represents a linking group containing a hydrocarbon chain, R2 represents a linking groupcontaining a hydrocarbon chain, R3 represents a linking group containing a hydrocarbon chain, and m represents 0 or 1.).

Description

technical field [0001] The present invention relates to polyamide elastomer compositions. Furthermore, it relates to fibers and shaped bodies formed therefrom. Background technique [0002] Thermoplastic elastomers are marketed in the form of various resin compositions such as urethane-based, styrene-based, ester-based, and amide-based resins. Due to their excellent properties such as high flexibility, high stretchability, and low specific gravity, they are not only used in functional It is widely used in permanent fibers, and also in buttons, linear zippers, collars, etc. for clothing. [0003] Especially in recent years, the requirements for fashion and functionality of clothing products have gradually increased. In particular, the use of thermoplastic polyurethane is expanding, and polyurethane elastic fibers with high elasticity and elastic recovery properties are widely used in stockings, tights, and other applications. In addition, it is also used in buttons for clo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00A44B1/02A44B19/16C08G69/40C08K3/32D01F6/60
CPCA44B19/16C08K3/32C08G69/40D01F6/60A44B1/02C08G69/36C08L77/06C08K2003/329D10B2331/02
Inventor 原義智藤村英树森山利雄
Owner UBE IND LTD
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