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Flame retardance poly- p-benzene dicarboxylic acid trimethylene glycol ester and method for producing the same

A technology of trimethylene phthalate and a production method, which are applied in the field of flame retardant polytrimethylene terephthalate and its production, can solve the problems of unsustainable flame retardant performance, poor appearance of textiles, low flame retardant performance, and the like, To achieve the effect of simple process, excellent performance and stable flame retardancy

Inactive Publication Date: 2008-02-27
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are two ways to obtain the flame retardant of textiles. One is post-treatment of textile flame retardant. Fiber-forming polymers and their fibers are flame-retardant and obtained by copolymerization. The flame-retardant textiles obtained by this method can completely overcome the defects of flame-retardant post-treatment methods. However, the flame-retardant properties of copolymerized flame-retardant products are generally low at present.

Method used

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  • Flame retardance poly- p-benzene dicarboxylic acid trimethylene glycol ester and method for producing the same
  • Flame retardance poly- p-benzene dicarboxylic acid trimethylene glycol ester and method for producing the same

Examples

Experimental program
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Effect test

Embodiment 1

[0022] 1. Prepare propylene glycol solution of phosphoric acid ester: take 4.97 parts by weight of flame retardant shown in chemical formula (1), 8.49 parts of 1,3-propanediol, add them to the esterification kettle, and gradually heat up to 165°C under stirring , carry out the esterification reaction under normal pressure conditions, and when the water no longer distills off, the reaction ends, and a propylene glycol propionate-based phenylphosphate propylene glycol ester solution is obtained.

[0023] 2. Esterification and polycondensation: Take 166 parts of purified terephthalic acid and 89 parts of 1,3-propylene glycol to make a slurry, then transfer it to an esterification kettle, and carry out esterification reaction at a temperature of 225°C and normal pressure. End the esterification when no longer distilling off, move the esterification product into the polymerization device, add the propylene glycol propionate-based propylene glycol phenylphosphate solution prepared ab...

Embodiment 2

[0025] 1. Prepare propylene glycol solution of phosphoric acid ester Take 5.0 parts by weight of phosphorus-containing flame retardant shown in chemical formula (2), 10.66 parts of 1,3-propanediol, join in the esterification kettle, under stirring, gradually heat up to 165 ℃, carry out the esterification reaction under the condition of normal pressure, when the water no longer distills off, the reaction ends, and the propylene glycol solution of the phosphoric acid ester is obtained.

[0026] 2. Esterification and polycondensation Take 166 parts of purified terephthalic acid and 89 parts of 1,3-propanediol to make a slurry, then transfer it to an esterification kettle, and carry out esterification reaction at a temperature of 225°C and normal pressure. End esterification when distilling off again, move the esterification product into the polymerization device, add the propylene glycol solution of the phosphoric acid ester prepared above, then add the catalyst, stabilizer and an...

Embodiment 3

[0028] 1. Preparation of propylene glycol solution of phosphoric acid ester Take 22.77 parts by weight of phosphorus-containing flame retardant shown in chemical formula (3) and 29.83 parts of 1,3-propanediol, add them to the esterification kettle, and gradually heat up to 165 ° C under stirring , carry out the esterification reaction under normal pressure conditions, when the water no longer distills out, the reaction ends, and the propylene glycol solution of the phosphate ester is obtained.

[0029] 2. Esterification and polycondensation Take 166 parts of purified terephthalic acid and 89 parts of 1,3-propanediol to make a slurry, then transfer it to an esterification kettle, and carry out esterification reaction at a temperature of 225°C and normal pressure. End esterification when distilling off again, move the esterification product into the polymerization device, add the propylene glycol solution of the phosphoric acid ester prepared above, then add the catalyst, stabili...

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Abstract

The invention discloses a flame-proof polyytrimethylene terephthalate alcohol and preparing method, which is characterized by the following: incorporating phosphoric system combustion inhibitor element; counting with phosphorus content; making up 0. 3%-1% polyytrimethylene terephthalate alcohol; preparing methyl glycol solution of phosphate ester; adding into terephthalic acid; proceeding esterification and polycondensation reaction with 1, 3 methyl glycol; getting the product. This product possesses simple course and good property, which fibre intensity is high.

Description

Technical field: [0001] The invention relates to a polytrimethylene terephthalate and a production method. Background technique: [0002] It is known that especially polyethylene terephthalate, polytrimethylene terephthalate and polybutylene terephthalate, due to their excellent mechanical, physical and chemical properties, are widely used in fibers, films and other Widely used in molded products. Polyester fiber is a flammable and flammable fiber. With the expansion of its application field, it is required to reach Certain flame retardant requirements, otherwise it will greatly increase the unsafety of fire. [0003] There are two ways to obtain the flame retardant of textiles. One is post-treatment of textile flame retardant. Fiber-forming polymers and their fibers have flame retardancy and are obtained by copolymerization. The flame-retardant textiles obtained by this method can completely overcome the defects of flame-retardant post-treatment methods. However, the fla...

Claims

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Application Information

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IPC IPC(8): C08G63/183C08G63/692C08G63/78
Inventor 成娟李旭本田圭介
Owner TORAY FIBER RES INST(CHINA) CO LTD
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