Polyamide-poly(phenylene ether) fiber, article, composition, and method

A technology of polyamide and composition, applied in polyamide-polyphenylene ether fibers, products, compositions and fields, capable of solving problems such as poor particle dispersion of spinning fine fibers

Active Publication Date: 2015-04-29
SHPP GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, while the addition of flame retardant additives to nylon compositions is known, such additives may be poorly dispersed in nylon as particles large enough to interfere with spinning fine fibers

Method used

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  • Polyamide-poly(phenylene ether) fiber, article, composition, and method
  • Polyamide-poly(phenylene ether) fiber, article, composition, and method
  • Polyamide-poly(phenylene ether) fiber, article, composition, and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0120] Embodiment 1: A fiber comprising a composition comprising melt blending: 58 to 93.9 weight percent of a polyamide selected from the group consisting of polyamide-6, polyamide-6,6, and combinations thereof; 5 to 35 weight percent polyphenylene ether-polysiloxane block copolymer reaction product comprising polyphenylene ether and polyphenylene ether-polysiloxane block copolymer; 1 to 10 weight percent Flame retardant of phosphonate; and 0.1 to 2 weight percent of compatibilizer for polyamide and polyphenylene ether-polysiloxane block copolymer reaction product; wherein, all weight percentages are based on the total composition weight; and wherein the composition comprises a continuous phase comprising polyamide and a dispersed phase comprising a polyphenylene ether-polysiloxane block copolymer reaction product; wherein, based on the number of dispersed phase particles, the dispersed phase particles have Less than or equal to 0.9 μm measured by microscope 2 average cross-...

Embodiment approach 2

[0121] Embodiment 2: The fiber of Embodiment 1, wherein the melt blending comprises melt blending a polyphenylene ether-polysiloxane block copolymer reaction product, a flame retardant, and a compatibilizer with a polyamide-based 15 to 70 weight percent polyamide to form an intermediate composition, and melt blending the intermediate composition with the remaining polyamide to form a composition.

Embodiment approach 3

[0122] Embodiment 3: The fiber according to Embodiment 1 or 2, wherein the polyamide is polyamide-6,6.

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Abstract

A flame retardant polyamide fiber is prepared from a composition containing specific amounts of a polyamide, a poly(phenylene ether)-polysiloxane block copolymer reaction product, a flame retardant that includes a metal dialkylphosphinate, and a compatibilizing agent. The composition used to form the fiber can be prepared in a process that includes melt blending a portion of the polyamide with all the other ingredients to form an intermediate composition, and then melt blending the intermediate composition with the remainder of the polyamide. The composition has small disperse phase particles that facilitate its use to melt spin fibers.

Description

Background technique [0001] Nylon fibers, including those made from nylons known as polyamide-6 and polyamide-6,6, are used in a wide variety of applications such as carpet, rope, clothing, parachutes, and automobile tires. However, for some applications, especially industrial applications such as industrial carpets and heat resistant protective clothing, there is a need for nylon fibers that exhibit enhanced flame retardancy. Also, while it is known to add flame retardant additives to nylon compositions, such additives may be poorly dispersed in nylon as particles large enough to interfere with spinning fine fibers. There remains a need for flame retardant nylon compositions suitable for forming fibers of varying thicknesses, including fine fibers. Contents of the invention [0002] One embodiment is a fiber comprising a composition comprising melt blending: 58 to 93.9 weight percent of a polyamide selected from the group consisting of polyamide-6, polyamide-6,6, and combi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/07
CPCD01F1/07D01F6/90C08L77/06C08L77/02C08K5/092C08K5/5313C08L71/12C08L83/12Y10T428/249921Y10T428/23993
Inventor 李庭妸丁绥北郭华
Owner SHPP GLOBAL TECH BV
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