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Phosphite antioxidant and preparation method thereof

A phosphite and antioxidant technology, applied in the field of antioxidants and their preparation, can solve problems such as environmental pollution and human injury, and achieve the effects of reducing production costs and simplifying technological processes

Inactive Publication Date: 2016-02-03
ZIBO YIFENG IRON POLYMER MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patented method lies with an improved way for making certain chemical compounds that are resisting oxidation without generating unwanted side products or reducing their overall quality level during manufacturing processes. This results in more efficient use of raw materials while maintaining high levels of purity and reduced cost associated therewith.

Problems solved by technology

Technological Problem: Antioxic agents like TINP, PLPB, hexaurylaminetrol, etc., developed from different sources such as natural products, synthetic ones made through chemical reactions, and combinations thereof for better overall properties. However, these methods involve multiple steps involving reacting specific parts separately, leading to increased costs associated therewith. Therefore, this problem needs to overcome before developing novel ways to combine them into more effective compositions without compromising their quality.

Method used

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  • Phosphite antioxidant and preparation method thereof
  • Phosphite antioxidant and preparation method thereof
  • Phosphite antioxidant and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0055] Pump 1mol triphenyl phosphite and 1mol tetramethylpiperidinol into the esterification kettle, add 3g K 2 CO 3 , stirring, under the protection of nitrogen, vacuumize to -0.1MPa, heat up to 95°C, and keep warm for 2 hours; when the effluent condensed by the condenser on the top of the kettle is less, add 2mol of dodecylphenol, and continue to heat up to 220°C , heat preservation reaction until there is no effluent, cool to 60°C, release the vacuum with nitrogen, collect 700g of dodecylphenol disubstituted product at the bottom of the kettle, calculated as triphenyl phosphite, the yield is 98.6%, and the product purity is 99.0% .

Embodiment 2

[0057] Pump 10mol triphenyl phosphite and 15mol pentamethylpiperidinol into the esterification kettle, add 62gK 2 CO 3 Stir, under the protection of nitrogen, evacuate to -0.1MPa, heat up to 95°C, and keep warm for 5 hours; when the effluent condensed by the condenser on the top of the kettle is less, add 11mol of dodecylphenol, and continue to heat up to 125-225°C ℃, heat preservation reaction until there is no effluent, lower the temperature to 60 ℃, release the vacuum with nitrogen, collect the bottom product, and obtain dodecylphenol monosubstituted product B5498g, based on triphenyl phosphite, the yield is 98.9%, the product 99.2% purity. B product in solvent CDCl 3 middle 1 HNMR such as figure 2 shown.

Embodiment 3

[0059] Pump 5mol triphenyl phosphite and 6mol pentamethylpiperidinol into the esterification kettle, add 8gK 2 CO 3 Stir, under the protection of nitrogen, evacuate to -0.1MPa, heat up to 95°C, and keep warm for 5 hours; when the effluent condensed by the condenser on the top of the kettle is less, add 12mol dodecylphenol, and continue to heat up to 125-225°C ℃, heat preservation reaction until there is no effluent, lower the temperature to 60 ℃, release the vacuum with nitrogen, collect the product at the bottom of the kettle, and obtain the disubstituted product of dodecylphenol A3580g, based on triphenyl phosphite, the yield is 98.9%, the product 99.4% purity. A product in solvent CDCl 3 middle 1 HNMR such as figure 1 shown.

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Abstract

The invention relates to an antioxidant and a preparation method thereof, and particularly relates to a phosphite antioxidant and a preparation method thereof. The phosphite antioxidant has the following chemical formula described in the description, wherein R1 is methyl piperidyl, R2 is phenyl, or a structure described in the description or R3, and R3 is C10-C22 hydrocarbyl. The invention provides the novel phosphite antioxidant; the product has dual efficacies of oxidation resistance and light stability. The antioxidant is suitable for SBS, TPR, IPS, PS, SBR, BR, PVC, PE, PP, ABS and other rubber and plastic elastomers, has high thermal-oxidative stability efficiency, is non-discoloring in a processing use process, is especially suitably used as a light stabilizer, and has wider market prospects. The invention also provides the preparation method of the phosphite antioxidant; the preparation method has the advantages of high product yield, less 'three wastes' emissions, environmental protection, and energy saving.

Description

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Claims

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Application Information

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Owner ZIBO YIFENG IRON POLYMER MATERIAL CO LTD
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