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Treatment for fibers, flame retardant, method of inparting flame retardancy, and treated synthetic polyester fibers

A technology of fiber treatment agent and flame retardant, which is applied in the field of processing polyester-based synthetic fibers

Inactive Publication Date: 2001-02-14
SANYO CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of such halogen-containing compounds is problematic from the standpoint of environmental protection, so a halogen-free treatment agent for imparting flame retardancy is required

Method used

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Examples

Experimental program
Comparison scheme
Effect test

manufacture Embodiment 1

[0056] Dimethyl terephthalate (131 parts), 314 parts of ethylene glycol, and 127 parts of the phosphinic acid derivative as the compound (C4) shown above, and manganese acetate, lithium acetate and antimony trioxide as a catalyst (which Relative to dimethyl terephthalate plus phosphinic acid derivatives, 0.1%, 0.5% and 0.03% respectively), these components are mixed together and heated at 160-220°C and normal pressure. 3 hours transesterification reaction. Then, after distilling off approximately the stoichiometric amount of methanol, the system temperature was raised to 240°C, and the pressure was gradually reduced to 1 Torr or less. The reaction was carried out for 3 hours, and the weight average molecular weight was 5,500 and the phosphorus content was 4.1%. The polyester compound.

[0057] The polyester compound (150 parts), 100 parts of dimethylformamide and 50 parts of nonylphenol-ethylene oxide (15 moles) adduct are heated to 80°C to obtain a uniform solution. 700 parts of ...

manufacture Embodiment 2

[0059] Dimethyl terephthalate (135 parts), 434 parts of ethylene glycol, and 125 parts of phosphinic acid derivatives as compound (C6) shown above, and manganese acetate, lithium acetate and antimony trioxide as catalysts (its Relative to dimethyl terephthalate plus phosphinic acid derivatives, 0.1%, 0.5% and 0.03% respectively), these components are mixed together and heated at 160-220°C and normal pressure. 3 hours transesterification reaction. Then, after distilling about the stoichiometric amount of methanol, the system temperature was raised to 250°C, and the pressure was gradually reduced to 1 Torr or lower. The reaction was carried out for 6 hours, and the weight average molecular weight was 14,500, and the phosphorus content was 4.2%. The polyester compound.

[0060] Heat the polyester compound (150 parts), 100 parts of dimethylformamide, 30 parts of nonylphenol-ethylene oxide (15 moles) adduct and 20 parts of lauryl alcohol-ethylene oxide (20 moles) The finished product w...

preparation Embodiment 3

[0062] Dimethyl terephthalate (65 parts), 290 parts of ethylene glycol, and 125 parts of phosphinic acid derivatives as compound (C7) shown above, and manganese acetate, lithium acetate and antimony trioxide as catalysts Relative to dimethyl terephthalate plus phosphinic acid derivatives, 0.1%, 0.5% and 0.03% respectively), these components are mixed together and heated at 160-220°C and normal pressure. 3 hours transesterification reaction. Then, methanol in an approximately stoichiometric amount was distilled off, and then proceeded according to the method of Manufacturing Example 2 to obtain a polyester compound with a weight average molecular weight of 9,000 and a phosphorus content of 5.5%.

[0063] Heat the polyester compound (150 parts), 100 parts of dimethylformamide, 30 parts of nonylphenol-ethylene oxide (15 moles) adduct and 20 parts of lauryl alcohol-ethylene oxide (18 moles) The finished product was brought to 80°C and a homogeneous solution was obtained. 700 parts of ...

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Abstract

A treatment for fibers which comprises a polyester compound obtained from an aromatic dicarboxylic acid or an anhydride or a lower alkyl ester thereof, a diol, and a phosphinic acid derivative and having a weight-average molecular weight of 500 to 20,000. The treatment comprises halogen-free compounds and can impart long-lasting flame retardancy to synthetic polyester fibers by a post-treatment.

Description

Technical field [0001] The present invention relates to a treatment agent for fibers, in particular, to a treatment agent for treating polyester-based synthetic fibers to make them flame-retardant. Background of the invention [0002] In the prior art, an aqueous dispersion of hexabromocyclododecane (Japanese Patent Sho-57-137377) is known as a treatment agent for treating polyester-based fibers to make them flame-retardant. However, from the perspective of environmental protection, the use of such halogen-containing compounds may cause problems, and therefore, a halogen-free treatment agent for providing flame retardancy is required. Summary of the invention [0003] The object of the present invention is to provide a fiber treatment agent, which can provide polyester-based synthetic fiber with long-lasting flame retardancy through post-treatment with a halogen-free compound. [0004] After intensive research, the inventors completed the above-mentioned object, and found an exc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/692C09K21/14D06M13/02D06M13/11D06M13/152D06M13/244D06M13/282D06M13/285D06M13/322D06M13/402D06M15/507D06M15/667
CPCC08G63/6926D06M13/285C09K21/14Y10T442/20Y10T428/2929D06M2200/30D06M15/667D06M2101/32Y10T428/2913D06M15/507
Inventor 堀江诚司
Owner SANYO CHEM IND LTD
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