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Flame-retardant processing of polyester-based synthetic fiber structure

A technology of synthetic fibers and structures, applied in the direction of fiber type, fiber treatment, flame retardant fibers, etc., can solve the problems of color flower, poor dispersion, chalky spots, etc., and achieve the effect of reducing load

Inactive Publication Date: 2020-01-31
DAIKYO CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, as mentioned above, the cyclic phosphazene compounds proposed as flame retardants have poor dispersibility in water, poor affinity with polyester-based synthetic fiber structures, or poor heat and humidity conditions due to differences in their structures and types of substituents. Due to the ease of hydrolysis, etc., chalky spots may occur in polyester-based synthetic fiber structures subjected to flame-retardant processing using such a cyclic phosphazene compound as a flame retardant, or when water adheres to the surface of the fiber structure. Various problems such as discoloration, or precipitation of crystals on the surface of the fiber structure over time

Method used

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  • Flame-retardant processing of polyester-based synthetic fiber structure
  • Flame-retardant processing of polyester-based synthetic fiber structure
  • Flame-retardant processing of polyester-based synthetic fiber structure

Examples

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Embodiment

[0084] Hereinafter, reference examples showing the synthesis method of the flame retardant of the present invention, production of the flame retardant processing agent of the present invention, and examples of flame retardant processing of the present invention are listed together with comparative examples to describe the present invention in detail. However, the present invention is not limited by these Examples.

[0085] It should be noted that the following non-volatile components in the flame retardant processing agent refer to the ratio of the flame retardant in the flame retardant processing agent, and the surfactant and defoamer are included together with the flame retardant in the flame retardant processing agent , refers to the ratio of the total amount of flame retardant, surfactant and defoamer.

[0086] The average particle size of the flame retardant is the volume-based median particle size obtained by measuring the particle size distribution of the flame retardan...

reference example 1

[0091] (Synthesis of Aminopentaphenoxycyclotriphosphazene)

[0092] 521 g (1.50 moles) of hexachlorocyclotriphosphazene was added to a 10 L flask equipped with a stirrer, a thermometer and a reflux condenser, and 2000 mL of toluene was added for dissolution to obtain a toluene solution of hexachlorocyclotriphosphazene.

[0093] A solution obtained by adding 3000 mL of THF (tetrahydrofuran) to 784 g (6.75 moles) of sodium phenate was added dropwise to the toluene solution of the above-mentioned hexachlorocyclotriphosphazene at an internal temperature of 20° C. to 35° C., then heated and refluxed for 1 hour. Next, THF was distilled off from the obtained reaction mixture, followed by stirring at 110° C. for 8 hours.

[0094] The reaction mixture thus obtained was washed with 2000 mL of a 2% aqueous sodium hydroxide solution, and then washed twice with 1000 mL of desalted water. Toluene and a small amount of water were distilled off from the obtained toluene layer to obtain 892 g...

reference example 2

[0105] (Synthesis of 2,2-diamino-4,4,6,6-tetraphenoxycyclotriphosphazene)

[0106] Add 521 g (1.50 moles) of hexachlorocyclotriphosphazene into a 5 L flask with a stirrer, a thermometer and a reflux condenser, add 2150 mL of ether, stir while cooling in a water bath, and dissolve to obtain the ether of hexachlorocyclotriphosphazene solution.

[0107] While stirring the above solution, 766 g of 25% ammonia water (11.3 moles as ammonia) was added dropwise thereto at an internal temperature of 25° C. or lower, and reacted at an internal temperature of 30° C. for 2 hours. The resulting reaction mixture was transferred to a separatory funnel, the aqueous layer was separated, and the ether layer was washed with desalted water until neutral.

[0108] After the obtained ether layer was dehydrated, ether was distilled off to obtain 276 g of 2,2-diamino-4,4,6,6-tetrachlorocyclotriphosphazene as a pale yellow solid. Yield 59.6%.

[0109] The analysis results of the above pale yellow s...

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Abstract

The present invention provides: a flame retardant for polyester-based synthetic fiber structures which includes aminopentaphenoxycyclotriphosphazene; and a flame-retardant processing agent for polyester-based synthetic fiber structures, obtained by dispersing the flame retardant in a solvent in the presence of a surfactant.

Description

technical field [0001] The present invention relates to flame retardant processing for polyester-based synthetic fiber structures. Flame retardants for ester synthetic fiber structures, polyester synthetic fiber structures subjected to flame retardant processing with such flame retardants, flame retardant processing agents containing such flame retardants, flame retardant processing agents using such A flame-retardant processing method of a polyester-based synthetic fiber structure, and a flame-retardant processed polyester-based synthetic fiber structure obtained by such a flame-resistant processing method. Background technique [0002] Conventionally, various methods of imparting flame retardancy to polyester-based synthetic fiber structures by post-processing are known. Typical post-processing methods include, for example, a bath treatment method and a padding method. [0003] As a method of imparting flame retardancy to polyester-based synthetic fiber structures throug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/44C09K21/12D06M101/32
CPCC09K21/12D06M13/44D06M13/313D06M2101/32D06M2200/30D06P3/54C09K21/10C08K5/5399
Inventor 岩城辉文小山重人多田祐二
Owner DAIKYO CHEM
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