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Method for preparing light stabilizer 2020 by skeleton method

A technology of light stabilizer and skeleton method, applied in the field of skeleton method to prepare light stabilizer 2020, can solve problems such as product performance decline, large proportion of macromolecular and small molecule products, and complex product composition.

Active Publication Date: 2022-08-05
宿迁联盛科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The product obtained by the conventional method has a complex composition, and the molecular weight distribution of the components is between 2000 and 4000
Among them, the proportion of macromolecule and small molecule products is large, resulting in a decline in product performance

Method used

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  • Method for preparing light stabilizer 2020 by skeleton method
  • Method for preparing light stabilizer 2020 by skeleton method
  • Method for preparing light stabilizer 2020 by skeleton method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Invest in 265g of dysmane, 92g triacyeocyanine in the reactor, stir well, cool to 0 ° C, and start adding 98.75g hepimramine; After the addition, stop stirring, static water separation, get the solution of the intermediate 1, and the income is burned in the bottle;

[0046] Invest in the reactor 159g dyshayne, 197.5g hebramine, keep stirring, heat up to 40 ° C, and then add an intermediate 1 solution; after the drip is added to 80 ° C Add 75g liquid. After the liquid and alkali droplets are added, the water divide is split to get the solution of the intermediate 2;

[0047] Invest in the intermediate 2 solution of 106g orthopramine and 75g liquid alkali, increase the temperature to 180 ° C for 3h, and then static water separation to obtain the solution of the intermediate 3;

[0048] Reduce the solution of the intermediate 3 to 0 ° C, and then slowly and evenly add 75g tritetchocyanine; after the addition, the heat preservation is stirred for 1h to get the solution of the i...

Embodiment 2

[0053] Invest in 265g of dysmane, 92g triacyeocyanine in the reactor, stir well, cool to 0 ° C, and start adding 98.75g hepimramine; After the addition, stop stirring, static water separation, get the solution of the intermediate 1, and the income is burned in the bottle;

[0054] Invest in the reactor 159g of dyshayne, 158g hebramine, keep stirring, heat up to 40 ° C, and then add an intermediate 1 solution; after the drip is added to 80 ° C 75g liquid alkali. After the liquid and alkali droplets are added, the water divide is split to get the solution of the intermediate 2;

[0055] Invest in the intermediate 2 solution of 106g orthopramine and 75g liquid alkali, increase the temperature to 180 ° C for 3h, and then static water separation to obtain the solution of the intermediate 3;

[0056] Reduce the solution of the intermediate 3 to 0 ° C, and then slowly and evenly add 64.4g tritetchocyl chloricocyan; after the addition, the heat preservation is stirred for 1h to get the so...

Embodiment 3

[0061] Invest in 265g of dysmane, 92g triacyeocyanine in the reactor, stir well, cool to 0 ° C, and start adding 98.75g hepimramine; After the addition, stop stirring, static water separation, get the solution of the intermediate 1, and the income is burned in the bottle;

[0062] Invest in the reactor 159g dyshayne, 197.5g hebramine, keep stirring, heat up to 40 ° C, and then add an intermediate 1 solution; after the drip is added to 80 ° C Add 75g liquid. After the liquid and alkali droplets are added, the water divide is split to get the solution of the intermediate 2;

[0063] Invest in the intermediate 2 solution of 106g orthopramine and 75g liquid alkali, increase the temperature to 180 ° C for 3h, and then static water separation to obtain the solution of the intermediate 3;

[0064] Reduce the solution of the intermediate 3 to 0 ° C, and then slowly and evenly add 82.8g tritetchocyl chlorylocyl; after the addition, the heat preservation is stirred for 1h to get the solutio...

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Abstract

The invention discloses a preparation process for preparing a light stabilizer 2020 by a skeleton method. The structure of the light stabilizer 2020 is shown in a figure (1). The substance is synthesized by taking cyanuric chloride, n-butyl piperidylamine, hexamethylenediamine piperidine, di-n-butylamine and 32% caustic soda liquid as raw materials, selecting petroleum ether, methylbenzene and xylene as reaction solvents and taking tetrabutylammonium bromide as a catalyst. The light stabilizer 2020 is suitable for PP fibers, PP narrow bands, PE films, PP and PE thick products and the like, and can provide excellent light stability; the polypropylene material also shows unique long-acting thermal stability on a filled PP product and a carbon black filling system; the excellent performance of the light stabilizer is mainly derived from alkalinity reduction and molecular weight increase after two ends are exposed and capped by amino groups, and the performance of the light stabilizer is improved.

Description

Technical field [0001] The present invention is the field of high molecular material modification auxiliary, which involves the method of preparing light stabilizers 2020 in the skeleton method. Background technique [0002] Hollyamine light stabilizer (HALS) is one of the auxiliary agents commonly used in polymer products, with excellent light stability and application performance. The obstructive amine light stabilizer can have a good synergistic effect with ultraviolet absorbers and antioxidants, so that polymer products have the characteristics of anti -aging and antioxidant, greatly extending their service life. [0003] At present, the most commonly hindered amine light stabilizers include light stabilizer 770, light stabilizer 114, light stabilizer 944 and light stabilizer 2020. Among them, the light stabilizer 770, the light stabilizer 114, and the light stabilizer 944 have achieved stable production in China, while the light stabilizer 2020 has less research in China. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D401/14
CPCC07D401/14Y02P20/52
Inventor 胡新利项瞻波苏波郑哲江赛
Owner 宿迁联盛科技股份有限公司
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