Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Viscoelastic auxiliary agent, and composition, preparation method and application thereof

A technology of bomb adjuvant and composition, applied in the field of pesticide adjuvant, can solve the problems of pollution of the environment, waste of NH3, complicated preparation process of polyetheramine, etc., and achieve the effects of good compatibility, reduction of by-products, and improvement of physical stability

Active Publication Date: 2020-02-28
YANGZHOU SPED CHEM
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Multifunctional monomers can be polybasic acids, difunctional acid halides, acid anhydrides, poly(acid anhydrides) and mixtures thereof, and can be used in agricultural chemical compositions, but the preparation process of the raw material polyetheramine is complicated, and a special high-efficiency catalyst is especially required to Improve NH 3 The conversion rate, otherwise it is easy to cause NH 3 waste, leading to environmental pollution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Viscoelastic auxiliary agent, and composition, preparation method and application thereof
  • Viscoelastic auxiliary agent, and composition, preparation method and application thereof
  • Viscoelastic auxiliary agent, and composition, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The embodiment of the present invention discloses a droplet viscoelastic water-based polymer additive and its composition. The preparation method specifically includes the following steps:

[0058] (1) Add 2.75g of methanesulfonic acid and 561g of dimer acid (HONGTAI) into the reaction kettle, and replace it with nitrogen for 3 times, raise the temperature to 140-160°C, add 156g of diethylenetriamine dropwise, and pass through Inject nitrogen for dehydration, while controlling the dropping temperature at 140-160°C, and the dropping time is 2.5-3h. After the dropping is completed, control the temperature at 160-165°C to carry out the aging reaction, and the aging time is 4-6h. When about 36g of water is collected, detect When the acid value is less than 2.5mgKOH / g, add 280g of oleic acid, control the temperature at 180-185°C, and dehydrate with nitrogen gas. The aging time is 5-7h. When about 18g of water is collected, the acid value is less than 1.8mgKOH / g , and finally...

Embodiment 2

[0065] The embodiment of the present invention discloses a droplet viscoelastic water-based polymer additive and its composition. The preparation method specifically includes the following steps:

[0066] (1) Add 3.1g p-toluenesulfonic acid, 561g dimer acid (UNIDYME TM14), and replace it with nitrogen for 3 times, increase the temperature to 140-160°C, add 347g of pentaethylenehexamine dropwise, and dehydrate with nitrogen, while controlling the dropping temperature to 180-190°C, and the dropping time is 2.5- 3h, the dropwise addition is completed, and the temperature is controlled at 180-190°C for aging reaction. The aging time is 4-6h. When about 36g of water is collected, the acid value is less than 1.8mgKOH / g, and 216g of oleic acid is added, and the temperature is controlled at 180-195°C. It is dehydrated with nitrogen gas, and the aging time is 5-7 hours. When about 18g of water is collected and the acid value is less than 1.2mgKOH / g, it is finally vacuumed at 80-85°C to...

Embodiment 3

[0073] The embodiment of the present invention discloses a droplet viscoelastic water-based polymer additive and its composition. The preparation method specifically includes the following steps:

[0074] (1) Add 7.5g p-toluenesulfonic acid, 561g dimer acid (UNIDYME TM 18), and replaced with nitrogen for 3 times, raised the temperature to 140-160°C, added 138g of diethylenetriamine dropwise, and dehydrated with nitrogen, while controlling the dropping temperature to 180-190°C, and the dropping time was 2.5- After 3 hours, the dropwise addition is completed, and the temperature is controlled at 180-190°C to carry out the aging reaction. The aging time is 4-6h. When about 35g of water is collected and the acid value is less than 4mgKOH / g, add 228g of coconut oleic acid and control the temperature at 180-195°C. It is dehydrated with nitrogen gas, and the aging time is 5-7h. When about 11g of water is collected and the acid value is less than 0.8mgKOH / g, it is finally vacuumed at ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a viscoelastic auxiliary agent and a composition, a preparation method and an application thereof, the method comprises the following steps: (1) dripping polyethylene polyamineinto dimer acid under the action of an acidic catalyst, and blocking the dimer acid with fatty acid or fatty acid ester after aging reaction to obtain A; (2) adding an alkaline catalyst to the A, thenadding an epoxy compound for aging reaction, adding a neutralizing agent to adjust pH, adding an acidic catalyst, fatty acid or fatty acid ester, and carrying out esterification modification to obtain a modified polyethylene polyamine alkoxy ester compound B; (3) carrying out a cationization reaction on the B under the action of a cationization reagent aqueous solution to obtain the viscoelasticauxiliary agent. The viscoelastic auxiliary agent composition provided by the invention can obviously reduce rebound and tumble of pesticide droplets on a target, and improves retention, spreading andutilization rate of pesticides.

Description

technical field [0001] The invention relates to the technical field of pesticide adjuvants, and more specifically relates to a viscoelastic adjuvant and its composition, preparation method and application. Background technique [0002] As an important means of agricultural production in my country, pesticides are widely used in the prevention and control of diseases, insects, weeds, and pests that seriously endanger production activities such as agriculture, forestry, animal husbandry, and fishery, and have made indelible contributions to national strategic issues such as increasing food production. contribute. However, the amount of pesticide liquid usage has also hit new highs. Studies have shown that the utilization rate of pesticides after spraying in my country is only 30%, and about 70% of the liquid medicine bounces, rolls, aggregates and loses into the ecological environment due to the ineffective dripping and adhesion of the droplets on the target surface, resulting...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08G65/26C08G65/337C08G65/324A01N25/24A01N47/40A01N43/90A01N43/76A01N51/00A01P7/04A01P7/02
CPCC08G65/2633C08G65/337C08G65/324A01N25/24A01N47/40A01N43/90A01N43/76A01N51/00
Inventor 王磊曹雄飞宋文勇沈姣姣秦敦忠
Owner YANGZHOU SPED CHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com