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Oil soluble thickening agent, production method and application in producing pesticide missible oil thereof

A thickener and oil-soluble technology, which is applied in the field of preparation of pesticide emulsifiable concentrates, can solve problems such as impossibility

Active Publication Date: 2009-04-08
JIANGSU ZHONGSHAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is a huge problem in the production process of EC pesticides, that is, how to protect the environment. Although there are microemulsions, water emulsions and other formulations to replace part of the EC, but it is necessary to use new formulations to completely replace Emulsifiable cream, also impossible to achieve in the short term

Method used

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  • Oil soluble thickening agent, production method and application in producing pesticide missible oil thereof
  • Oil soluble thickening agent, production method and application in producing pesticide missible oil thereof
  • Oil soluble thickening agent, production method and application in producing pesticide missible oil thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 400 g of rosin, 480 g of maleic anhydride, and 100 g of xylene were put into a 1L reactor, and after replacing the reactor with nitrogen, the temperature was controlled at 190-200° C., and the reaction was carried out for 1.5 hours to obtain the rosin derivative used in the present invention.

[0029] Put 100g of pentaerythritol and 1.2g of catalyst KOH into a 1L reaction kettle, replace the reaction kettle with nitrogen, vacuumize and dehydrate, raise the temperature to 110°C, and then vacuum strip the gas for 2 hours, then introduce 100g of PO (propylene oxide) to control the reaction The temperature is 100-150°C, the pressure is 0.1-0.6MPa, after the PO is fed, the reaction is aged for 1.5hr, and then 120g of EO (ethylene oxide) is introduced at 120-170°C and the pressure is 0.1-0.6MPa. After finishing EO, react and age for 1.5hr, neutralize, absorb, dehydrate, degas, and filter with a leaf filter to obtain the pentaerythritol polyoxypropylene polyoxyethylene ether us...

Embodiment 2

[0033] 400 g of rosin, 480 g of maleic anhydride, and 100 g of toluene were put into a 1 L reactor. After the reactor was replaced with nitrogen, the temperature was controlled at 190-200° C. and the reaction was carried out for 1.5 hours to obtain the rosin derivative used in the present invention.

[0034] Put 100g of glycerol and 1.5g of catalyst KOH into a 1L reaction kettle, replace the reaction kettle with nitrogen, vacuumize and dehydrate, raise the temperature to 110°C, and vacuum strip the gas for 2 hours, and then introduce 100g of EO (ethylene oxide) , control the reaction temperature at 120-170°C, and the pressure at 0.1-0.6MPa. After PO is fed, the reaction is aged for 1.5hr, and then 120 grams of PO (propylene oxide) is introduced at 100-150°C and 0.1-0.6MPa pressure. , After entering EO, react and age for 1.5hr, through neutralization, adsorption, dehydration, degassing, and filter with a blade filter to obtain glycerol polyoxyethylene polyoxypropylene ether used...

Embodiment 3

[0037] Put 400g of rosin, 480g of maleic anhydride, and 100g of dimethylformamide in a 1L reactor. After replacing the reactor with nitrogen, control the temperature at 190-200°C and react for 1.5 hours to obtain the rosin derivative used in the present invention. .

[0038] Put 100g of dimethylformamide, 60g of pentaerythritol, 40g of castor oil, and 660g of rosin derivatives into a 1L reactor, heat to dissolve the materials completely, then add 10g of catalyst p-toluenesulfonic acid, heat up from 140 to 160°C, and fully react for 5 After the reaction, carry out neutralization and dehydration, add catalyst KOH 2.4g, replace the reactor with nitrogen, vacuumize and dehydrate, raise the temperature to 110°C, and vacuum strip gas for 2 hours, then feed PO (propylene oxide) 168g, control The reaction temperature is 120-170°C, the pressure is 0.1-0.6MPa, after the PO is fed, the reaction is aged for 1.5hr, and then 176g of EO (ethylene oxide) is fed under the conditions of 120-170...

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Abstract

The invention relates to an oil soluble thickening agent, which is a transparent viscous liquid of which number average molecular weight is between 4, 000 and 6, 000, the viscosity is between 10, 000 and 30, 000, and the color varies form yellow to brown. The oil soluble thickening agent is prepared by the following steps: rosin and maleic anhydride have Diels-Alder reaction; the product after the reaction and polyol or polyol polyoxyethylene and polyethenoxy ether have esterification reaction; and epoxy ethane or / and propylene oxide is added into the mixture to obtain the transparent viscous liquid. A pesticide emulsifiable agent preparation prepared from the oil soluble thickening agent has the advantages of excellent emulsifiable and dispersible performance, viscous appearance, uneasy layering, and better attachment and tractility on the liquid surface during use. The invention discloses a preparation method for the oil soluble thickening agent.

Description

technical field [0001] The invention relates to an oil-soluble thickener, its preparation method and its application in the preparation of pesticide emulsifiable concentrate. Background technique [0002] Liquid or pasty products in which the organic solvent is the dispersed phase, such as pesticides, adhesives, paints, printing inks, sealants, etc., often need to adjust the rheological properties of the fluid in the product formulation design, one of the important steps is the fluid thicken. In adhesive products, the apparent viscosity of the adhesive is changed by adding a thickener to reduce the excessive penetration of the solvent into the material, which is very beneficial to the bonding of porous materials; thickening can also control the amount of glue on the surface (reduce brushing times) to reduce dripping loss during construction. In paint products, thickeners are used to adjust the thixotropy of paint and reduce sagging in three-dimensional painting. Utilizing...

Claims

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Application Information

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IPC IPC(8): A01N25/24C09F1/04
Inventor 孙红霞王永生马一鸣戚莉
Owner JIANGSU ZHONGSHAN CHEM
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