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

Microcapsule suspensions including high levels of agriculturally active ingredients

An agricultural active ingredient and agricultural active technology, applied in the field of microcapsule suspension, can solve problems such as increasing costs

Inactive Publication Date: 2013-04-10
DOW AGROSCIENCES LLC
View PDF6 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The desire for microcapsules with high AI content and the relative insolubility of many AIs requires the use of large volumes of non-aqueous solvents, which in turn raises the cost of forming these types of microcapsules

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
  • Microcapsule suspensions including high levels of agriculturally active ingredients

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0049] Referring now to Table 1. The following examples are provided to further illustrate the invention and should not be construed as limiting. The components listed in Table 1 were used to form a microcapsule suspension. After formation, the particle size was measured using a Malvern Mastersizer.

[0050] The amount of AI (trifluralin) in conventional microcapsule suspension formulations is limited to a maximum of about 300 gai / l, whereas the maximum concentration of trifluralin in the formulations of the present invention is approximately 30% higher. This may be due to the fact that conventional formulations are formed with an AI to solvent ratio of about 1:1, whereas the formulations of the present invention are formed with a much larger AI to solvent ratio. Thus, the formulations according to the invention have more AI / microcapsules and can therefore be administered in smaller quantities and more cost-effectively than conventionally formed substances. Next, the stabil...

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

Materials and methods for the formation of microcapsules that include a high concentration of agriculturally active ingredients (AIs) and a lipophilic polymer encapsulated within a polymeric shell formed via an interfacial polycondensation reaction. Under some conditions, these microcapsules may be formed using less lipophilic solvent than is required using convention microencapsulation techniques. These inventive methods include forming an oil-in-water emulsion in some cases using a first polymer as a lipophilic solvent for the AI and forming a microcapsule that includes the AI and polymer. Other methods include forming a microcapsule that includes a lipophilic monomer, agriculturally active ingredient and initiator having a polymeric shell then elevating the temperature to initiate polymerization of the monomer with the microcapsule.

Description

[0001] Cross-references to related applications [0002] This application claims the benefit of U.S. Provisional Application 61 / 352,084, filed June 7, 2010, which is expressly incorporated into this application. Technical field [0003] The present invention relates to stable microcapsule suspensions containing high levels of agriculturally active ingredients. Background technique [0004] Oil-in-water microcapsule suspensions can be used to effectively deliver various agricultural active ingredients (AI) such as herbicides, insecticides or fungicides to the surface of plants or areas adjacent to plants that carry or may Carry some plant pathogens. Generally, high levels of AI in microcapsules make the formulation easy to store, transport, and apply. Also, many AIs are solid at room temperature and highly insoluble in water. Therefore, water-insoluble AI must be dissolved in a non-aqueous solvent and dissolution usually takes a long time in a large volume of said solvent....

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
Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/28
CPCA01N25/28B01J13/16A01N31/14A01N33/18A01N33/22A01N37/22A01N37/24A01N37/26A01N37/38A01N37/40A01N37/46A01N37/48A01N37/50A01N37/52A01N39/02A01N39/04A01N43/18A01N43/28A01N43/36A01N43/40A01N43/50A01N43/56A01N43/60A01N43/653A01N43/70A01N43/76A01N43/78A01N43/80A01N43/82A01N43/84A01N47/12A01N47/22A01N47/24A01N47/38A01N53/00A01N55/00A01N57/12A01N57/14A01N57/16A01N57/28A01M1/20
Inventor 许文H.坦克
Owner DOW AGROSCIENCES LLC
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