Silicone emulsion and method for producing same

A technology of silicone emulsion and silicone resin, which is applied in the field of high-concentration transparent silicone emulsion and its preparation, and can solve problems such as the stability of difficult-to-emulsify emulsions

Pending Publication Date: 2021-09-14
KCC SILICONE CORP
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Patent Document 1 uses the above inversion method, making it difficult to emulsify the emulsion and having poor stability

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
  • Silicone emulsion and method for producing same
  • Silicone emulsion and method for producing same
  • Silicone emulsion and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0066] The preparation method of silicone emulsion

[0067] The preparation method of the silicone emulsion according to the present invention comprises subjecting a nonionic surfactant to aqueous dispersion, and dividing the silicone resin mixture into components and introducing it into the aqueous dispersed nonionic surfactant eight or more times to prepare mixture.

[0068] At this time, the silicone resin mixture includes a silicone resin and a diluent, and the prepared silicone emulsion includes the silicone resin mixture and the nonionic surfactant in a weight ratio of 1:0.1 to 1:0.4. Specific examples of the silicone resin, diluent, and nonionic surfactant are the same as described above for the silicone emulsion.

[0069] Subjecting Nonionic Surfactants to Aqueous Dispersion

[0070] In this step, the nonionic surfactant is subjected to aqueous dispersion.

[0071] Specifically, in this step, a nonionic surfactant and a solvent may be mixed and subjected to aqueou...

Embodiment 1

[0085] Embodiment 1: Preparation of silicone emulsion

[0086] The components were used in the compositions described in Table 1, and the silicone resin mixture was divided and introduced under the process conditions described in Table 3.

[0087] Specifically, deionized water-1 and a nonionic surfactant were introduced into the reactor, and stirred for 30 minutes while raising the temperature to 55°C. Thereafter, while maintaining the reactor at 55° C., the silicone resin mixture was divided and introduced 15 times at intervals of 5 minutes, and then stirred at 1,000 rpm for 60 minutes. Then, deionized water-2 was added to the reactor, stirred at 1,000 rpm for 30 minutes, a preservative was added, and then stirred at 1,000 rpm for 30 minutes. After that, deionized water-3 was added to the reactor, and stirred at 1,000 rpm for 30 minutes to prepare a silicone emulsion.

Embodiment 2 to Embodiment 8 and comparative example 1 to comparative example 8

[0088] Example 2 to Example 8 and Comparative Example 1 to Comparative Example 8: Preparation of Silicone Emulsion

[0089] Silicone emulsions were prepared in the same manner as in Example 1, but the components were used with the compositions described in Table 1 and Table 2, and the silicone resin mixture was divided into components under the process conditions described in Table 3 and introduce.

[0090] [Table 1]

[0091]

[0092]

[0093] [Table 2]

[0094]

[0095] [table 3]

[0096]

[0097] The manufacturers and product names of the components used in Comparative Examples and Examples are shown in Table 4.

[0098] [Table 4]

[0099]

[0100]

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The present invention relates to: a silicone emulsion comprising a silicone resin mixture and a nonionic surfactant, wherein the silicone resin mixture and the nonionic surfactant are included in a weight ratio of 1:0.1 to 1:0.4; and a method for producing same.

Description

technical field [0001] The invention relates to a high-concentration transparent silicone emulsion and a preparation method thereof. Background technique [0002] Silicone emulsions are prepared by dispersing silicone in organic solvents or water, and usually by diluting high-viscosity silicone gums with silicone oil or siloxane having a lower viscosity than silicone gums, and then adding surfactants, Emulsifiers, solvents, etc. are prepared in the form of oil / water (O / W) emulsions. [0003] In particular, high-viscosity and high-solid-content silicone emulsions are generally prepared by an inversion method in which a silicone gum is mixed with a surfactant, and then water or an organic solvent is introduced thereinto. The inversion method is an oil-based reaction, and generally uses a phase change process with high-speed stirring in a scraper mixer, and a cooling process for controlling the temperature rise in the reaction tank due to high-speed stirring. [0004] In this...

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): C08J3/03C08L83/04
CPCC08L83/04C08J3/03C08J2383/04C08J2483/06C08G77/04C08L83/00C08L71/02C08L2201/54C08L2205/02
Inventor 刘贤珠李智惠朴祉玧
Owner KCC SILICONE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap