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Solid methyltin mercaptide complex heat stabilizer and preparation method and application thereof

A composite heat stabilizer and heat stabilizer technology, applied in the direction of tin organic compounds, etc., can solve the problems of low tin content and insufficient self-lubricating property of methyl tin compounds, achieve the best stability and lubrication effect, and improve the stability efficiency. , the effect of reducing costs

Inactive Publication Date: 2014-04-09
ZHEJIANG HIMPTON NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by its own structure, this kind of methyl tin compound has defects such as low tin content and insufficient self-lubricating property.
At present, there is very little research on methyl tin compounds with high tin content in foreign countries, and there is no such product in the domestic stabilizer market.

Method used

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  • Solid methyltin mercaptide complex heat stabilizer and preparation method and application thereof
  • Solid methyltin mercaptide complex heat stabilizer and preparation method and application thereof
  • Solid methyltin mercaptide complex heat stabilizer and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] According to the distribution ratio of raw materials, put 60kg of solid methyl tin and 3kg of zinc stearate into the reaction kettle first, stir and mix, control the stirring speed at 80r / min, and control the temperature at 65°C for 1h, then add 12kg of modified hydrotalcite, 2, 2kg of 6-di-tert-butyl-p-cresol, 2kg of dibenzoylmethane, 2kg of pentaerythritol, 12kg of polyethylene wax, and 32kg of pentaerythritol stearate are added in proportion, kept at 65°C and mixed for 20 minutes, cooled to room temperature, and sliced. Described solid methyl tin composite thermal stabilizer 125kg.

[0044] Tin content (mass percentage): 12.51%.

Embodiment 2

[0046] According to the ratio of raw material components, put 66kg of solid methyl tin and 7kg of calcium stearate into the reaction kettle first, stir and mix, control the stirring speed at 95r / min, control the temperature at 70°C and mix for 1.5h, then add 13kg of modified zeolite, four [ β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester 2kg, stearyl benzoylmethane 2kg, sorbitol 3kg, oxidized polyethylene wax 14kg, hard stearate 32 kg of fatty alcohol esters were added in proportion, kept at 70° C. and mixed for 30 minutes, cooled, and sliced ​​into 139 kg of the solid methyl tin composite thermal stabilizer.

[0047] Tin content (%) 12.25%.

Embodiment 3

[0049]According to the distribution ratio of raw materials, 69kg of solid methyl tin and 9kg of magnesium stearate were first put into the reaction kettle, stirred and mixed, the stirring speed was controlled at 115r / min, and the temperature was controlled at 75°C for 2h, and then 14kg of modified hydrotalcite, three [ 2. 3kg of 4-di-tert-butylphenyl] phosphite, 4kg of dibenzoylmethane, 4kg of maltitol, 16kg of polyethylene wax, and 35kg of stearyl adipate were added in proportion, kept at 75°C for 35 minutes, cooled, After slicing, it is 154kg of the solid methyl tin composite thermal stabilizer.

[0050] Tin content (%): 12.15%.

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Abstract

The invention discloses a solid methyltin mercaptide complex heat stabilizer which consists of 60-80 parts of solid methyltin mercaptide, 3-20 parts of a metallic soap type stabilizer, 10-20 parts of an inorganic auxiliary, 1-5 parts of an antioxidant, 1-5 parts of beta-diketone, 1-10 parts of polyhydric alcohols, 30-50 parts of an inner lubricating agent and 10-30 parts of an outer lubricating agent, wherein the tin content of the solid methyltin mercaptide is 25-30 percent. The tin content of the solid methyltin mercaptide adopted by the solid methyltin mercaptide complex heat stabilizer is high, so that an enough space is retained to compounding of the inner and outer lubricating agents and the auxiliary, and the optical stabilization performance and the best lubricating effect are achieved.

Description

(1) Technical field [0001] The invention relates to a solid methyl tin composite heat stabilizer and its preparation method and application. (2) Background technology [0002] Organotin heat stabilizers have excellent properties such as good thermal stability, weather resistance, initial colorability, non-toxicity, and transparency, so they have become a type of environmentally friendly heat stabilizer with the widest application, the best effect and the most promising development prospects. stabilizer. In foreign countries, organotin heat stabilizers have developed rapidly, especially in the United States, where their consumption accounts for 28% of the total heat stabilizer consumption, Japan and Western Europe also reach about 25% and 18% respectively, and China only accounts for about 5%. Among them, methyltin mercaptide is superior to other organotin heat stabilizers due to its stability, transparency, compatibility, and weather resistance, thus becoming the leader amo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/06C08K9/04C08K3/26C08K3/34C08K5/58C08K5/098C08K5/07C08K5/053C08L27/06C07F7/22
Inventor 高尔金唐伟瞿英俊周天红陈建军
Owner ZHEJIANG HIMPTON NEW MATERIAL
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