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Carpets prepared from yarns comprising fluorinated polyester blend

A technology for carpets and yarns, applied in the direction of carpets, carpets, single-component polyester artificial filaments, etc., which can solve the problems of uneven processing quality and appearance decline

Inactive Publication Date: 2013-09-18
EI DU PONT DE NEMOURS & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such topical treatments have been found to be transient, wear off after a short period of time compared to the life of the textile or carpet, and require reapplication, typically by the consumer or individual contractor, and can result in uneven treatment quality, as well as appearance overall decline

Method used

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  • Carpets prepared from yarns comprising fluorinated polyester blend
  • Carpets prepared from yarns comprising fluorinated polyester blend
  • Carpets prepared from yarns comprising fluorinated polyester blend

Examples

Experimental program
Comparison scheme
Effect test

example 1、2 and comparative example A

[0345] A. Dimethyl 5-(1,1,2-trifluoro-2-(perfluoropropoxy)ethoxy)isophthalate (F 10 -iso) synthesis :

[0346]

[0347] In a nitrogen purged dry box glovebox, THF (500 mL) and dimethyl 5-hydroxyisophthalate (42 g, 0.20 mol) were added to an oven dried round bottom reaction flask equipped with a stirrer and addition funnel middle. Potassium carbonate catalyst (6.955 g, 0.0504 mol) was added via addition funnel to form a reaction mixture. PPVE (79.8 g, 0.30 mol) was then added via addition funnel, and the resulting reaction mixture was heated to reflux at 66°C for 16 hours. The catalyst was then removed from the resulting mixture by filtration through a bed of silica gel. The resulting filtrate was concentrated in vacuo using a rotary evaporator followed by vacuum distillation to obtain 81.04 g (85.12% yield) of the desired 5-(1,1,2-trifluoro-2-( Perfluoropropoxy)ethoxy)dimethylisophthalate (F 10 -iso).

[0348] B.F. 10 -iso with 50 mol% concentration of ...

example 3、4 and comparative example B

[0365] A. (5-(1,1,2-trifluoro-2-(1,1,2,3,3,3-hexafluoro-2-(perfluoropropoxy)propoxy)ethoxy) Dimethyl isophthalate (F 16 -iso) synthesis:

[0366]

[0367] The procedure of Example 1 Part A was repeated except that 129.6 g of PPPVE was used instead of PPVE in Example 1 Part A. 123.39 g (96.10% yield) of the desired product (5-(1,1,2-trifluoro-2-(1,1,2,3,3,3-hexafluoro-2-( Perfluoropropoxy) propoxy) ethoxy) dimethyl isophthalate (F 16 -iso).

[0368] B.F. 16 The copolymer (F 10 -iso-50-co-tere) preparation

[0369]

[0370] Dimethyl terephthalate (36.24g, 0.187mmol), F 16 -iso (120 g, 0.187 mol) and 1,3-propanediol (51.2 g, 0.672 mol) were charged to a pre-dried 500 mL three-neck round bottom flask equipped with an overhead stirrer and distillation condenser. A nitrogen purge was applied to the flask at 23°C and stirring was started at 50 rpm to form a slurry. While stirring, the flask was evacuated to 100 Torr, then filled with nitrogen N 2 Repressurize for a tota...

example 5 and 6 and comparative example C

[0384] Steps A-D of Example 3 were repeated to produce F prepared as described in Example 3 16 -A two-batch blend of iso with Sorona Bright, one batch having 1% by weight of F 16 -iso-50-co-tere (example 5), while a batch has 2% by weight of F 16 -iso-50-co-tere (Example 6).

[0385] Each blend was melt spun into yarn following the procedure of Example 3, Part E, except that the spinneret had 34 holes per circular cross-section, 0.010 inch diameter by 0.040 inch length. Use unblended Sample served as control (CE-C). The spinning conditions are shown in Table 6. The mechanical properties of the yarns are shown in Table 7.

[0386] The yarns so produced are especially suitable for the preparation of knitted, woven and nonwoven textile goods.

[0387]

[0388]

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Abstract

Carpets are prepared from yarns comprising fibers comprising a fluorinated polyester blend that is prepared by melt blending a fluorovinyl ether functionalized polyester with a non-fluorinated polyester. The fluoroether functionalized polyester can be a homopolymer or a copolymer. The carpets exhibit durable soil, oil, and water repellency.

Description

[0001] Related Patent Applications [0002] This invention is related to US patent applications 12 / 873428 and 12 / 873402, and corresponding patent applications docket numbers CL5045, CL5226 and CL5009. technical field [0003] The present invention relates to blends that are a combination of an aromatic polyester with another aromatic polyester having one or more fluoroether functionalized repeat units. The blends are suitable for the preparation of polyester shaped articles, especially fibers and yarns, which exhibit improved soil, oil and water repellency. In particular, the blends are useful in the preparation of films, fibers, fabrics, carpets and rugs with enhanced soil resistance. Background technique [0004] Scale, stain and water repellency in carpets and textiles are long-standing issues. It has long been known to apply fluorinated substances to carpet and textile fiber surfaces in order to reduce the wettability of the surface to oils, waterborne soils, and the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/62A47G27/02D02G3/02D01D5/253
CPCD10B2503/04Y10T428/23993D01F6/92D03D15/283D02G3/02A47G27/02D01D5/253
Inventor N.E.德赖斯达勒F.内德伯格
Owner EI DU PONT DE NEMOURS & CO
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