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Non-ionic N-vinyl butyrate lactam iodine, high-stability non-ionic N-vinyl butyrate lactam iodine and relevant overspeed preparation method

A vinyl butyrolactam, high stability technology, applied in the compound, non-ionic N-vinyl butyrolactam iodine field, can solve the problems of cumbersome addition process, many impurities, toxic iodine vapor, etc., and achieve rapid and uniform complexation , easy and fast preparation, high iodine content

Active Publication Date: 2010-09-22
宇昂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is: iodine vapor is poisonous, and its complexing and penetrating power are extremely strong. A small amount of iodine vapor will cause harm to the operator's body
However, the addition process is very cumbersome, and it is extremely inconvenient to use. It needs to be prepared immediately after use, and the use and addition of various additives often restrain and interfere with each other during preparation.
This has resulted in the enhanced stability of PVPI, but the production reproducibility is not good, excessive impurities, excessive heavy metal content, reduced nitrogen content, increased ash content and other additional disadvantages, thus greatly increasing the corresponding labor, use and storage costs, not suitable mass production, sale and use
[0012] With the progress of society and the development of economy, the above-mentioned weaknesses of PVPI are becoming more and more obvious, and the above-mentioned stability maintenance methods are becoming less and less suitable for current application requirements.

Method used

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  • Non-ionic N-vinyl butyrate lactam iodine, high-stability non-ionic N-vinyl butyrate lactam iodine and relevant overspeed preparation method
  • Non-ionic N-vinyl butyrate lactam iodine, high-stability non-ionic N-vinyl butyrate lactam iodine and relevant overspeed preparation method
  • Non-ionic N-vinyl butyrate lactam iodine, high-stability non-ionic N-vinyl butyrate lactam iodine and relevant overspeed preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. Effect of reaction time on available iodine content

[0040] Accurately weigh 7g of iodine tablets, 46.84g of YK001 powder and 0.27g of sodium chloride, add them to a 250ml three-necked flask at one time, heat in a water bath at 60°C, stir mechanically at 200r / min, take samples at regular intervals, test the content of available iodine, and obtain effective The change of iodine content with the reaction time is shown in Table 1.

[0041] The impact of table 1 reaction time on available iodine content

[0042] sampling time

[0043] It can be seen from Table 1 that the reaction between iodine and YK001 is very rapid at the initial stage, and the effective iodine content can reach 10.26% in 7 minutes after the reaction. The extension of the time, the available iodine content is getting higher and higher, and the available iodine content reaches 10.57% when the reaction time is 20 minutes, and the effective iodine content decreases on the contrary after exten...

Embodiment 2

[0066] The preparation of embodiment 2 highly stable nonionic N-vinylbutyrolactam iodine

[0067] 1. The effect of the dosage of potassium iodate on the stability of PVPI

[0068] Accurately weigh 5g of laboratory-made PVPI, 0.48g of sodium citrate, weigh 0.15g, 0.20g, 0.25g, 0.30g, 0.35g of potassium iodate, 0.45g of potassium iodide, and 0.0040g of sodium hydroxide in a high-speed pulverizer Crushed in medium for 60 seconds to obtain compound PVPI. Take an appropriate amount to make a 1% aqueous solution, put it in a blast drying oven at 54°C, and test the available iodine content after 14 days. The data is as follows: image 3 shown.

[0069] Depend on image 3It can be seen that the stable increase of PVPI with the increase of potassium iodate consumption is because the PVPI solution decomposes iodide ions during storage, and when potassium iodate is added, iodine is generated under acidic conditions, so that the effective iodine content remains relatively stable. Howe...

Embodiment 3

[0079] The preparation of embodiment 3 nonionic N-vinylbutyrolactam iodine

[0080] Accurately weigh 7g of iodine tablets, 46.15g of YK001 powder (required to have a viscosity-average molecular weight of 40,000, a PD value of less than 5.5, and a water content of 2.5%) and 0.21g of sodium chloride, and add them to a 250ml three-necked flask at one time, heat in a water bath at 60°C, and / min mechanical stirring, the reaction time is 20 minutes and then terminated, and non-ionic N-vinylbutyrolactam iodine A is obtained, and the available iodine content is higher than 10.5%. The available iodine content can be sampled every five minutes to test the available iodine content, and the reaction can be stopped when the available iodine content is higher than 10.5%.

[0081] Accurately weigh 7.005g of iodine tablets, 46.15g of YK001 powder (required to have a viscosity average molecular weight of 45,000, a PD value of less than 5.5, and a water content of 3.0%) and 0.19g of sodium chl...

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PUM

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Abstract

The invention provides a preparation method of non-ionic N-vinyl butyrate lactam iodine. The non-ionic N-vinyl butyrate lactam iodine is prepared by stirring homopolymerized N-vinyl butyrate lactam and iodine for 20 to 25 minutes at the temperature of 60 to 70 DEG C and the speed of 200 to 250r / min, wherein the viscosity-average molecular weight of the homopolymerized N-vinyl butyrate lactam is 40000 to 45000, and the PD value is smaller than 5.5; and the water content is 2.0 to 3.0 percent. The invention also provides non-ionic N-vinyl butyrate lactam iodine prepared in such a way, a method for preparing high-stability non-ionic N-vinyl butyrate lactam iodine in such a way and the relevant high-stability non-ionic N-vinyl butyrate lactam iodine. The non-ionic N-vinyl butyrate lactam iodine has high iodine content, simple, convenient and quick preparation and low cost, and the high-stability non-ionic N-vinyl butyrate lactam iodine has high stability and convenient use, meets the highest requirements of the relevant dispensatories of USP, ISP, BP, EP, CP and the like completely and is suitable for large-scale popularization and application.

Description

technical field [0001] The present invention relates to the technical field of compounds, more specifically, to the technical field of nonionic N-vinylbutyrolactam iodine, in particular to a nonionic N-vinylbutyrolactam iodine, a highly stable nonionic N-vinyl Butyrolactam iodine and related ultrafast preparation methods. Background technique [0002] Non-ionic N-vinyl butyrolactam iodine, referred to as PVPI, iodolone, is a complex of non-ionic homopolymeric N-vinyl butyrolactam and iodine, and its solid is yellow-brown to red-brown amorphous powder , dissolved in water or ethanol, the solution is reddish brown, acidic, insoluble in ether or chloroform, and the available iodine is usually 9.0% to 12.0%. [0003] PVPI solution has a broad-spectrum anti-bacteria, fungus and virus effect, and the sterilization is fast, stable, durable and reliable. It is non-toxic, harmless and non-irritating to the human body. It is an efficient, safe and fast disinfectant. The world's firs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F126/10C08F8/22C08L39/06C08K13/02C08K5/098C08K3/24C08K3/16C08K3/22
Inventor 王宇李学超陈占
Owner 宇昂科技有限公司
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