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A kind of polysiloxane emulsifier modified by multifunctional group and preparation method thereof

A technology of polysiloxane and multifunctional groups, which is applied in the field of multifunctional modified polysiloxane emulsifiers and their preparation, can solve problems such as increased product viscosity, decreased product performance, and increased system viscosity. Sexual enhancement, less side effects, and stable product quality

Active Publication Date: 2016-09-07
ZHANGJIAGANG GREAT CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these products are mostly modified by a combination of long-chain α-olefin and polyether. During the synthesis process, due to the difference in reactivity between the two and the existence of hydroxyl groups in polyether, crosslinking or non-reaction is easy to occur. As a result, the viscosity of the system increases or the monomer remains, resulting in an increase in product viscosity or turbidity, which leads to problems such as product performance degradation, poor adaptability, and poor stability. It needs to be solved by adding other co-emulsifiers or emulsifier systems.

Method used

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  • A kind of polysiloxane emulsifier modified by multifunctional group and preparation method thereof
  • A kind of polysiloxane emulsifier modified by multifunctional group and preparation method thereof
  • A kind of polysiloxane emulsifier modified by multifunctional group and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In a 500ml four-necked flask equipped with a thermometer, a stirrer, a nitrogen tube, and a condenser, 80.64g of α-16 olefin, 100.08g of low-hydrogen silicone oil with a hydrogen content of 0.2, and 24.00g of allyl Polyoxyethylene ether (M=200), 20.47g isopropanol, stir and heat up to 60℃ under nitrogen atmosphere, add 0.023g catalyst (effective content 1000ppm), stir and react at 60℃ for 12h to complete the reaction, insert Vacuum, keep the vacuum degree -0.08~-0.1MPa, 1~2h, and cool down to obtain a colorless to slightly yellow translucent or slightly turbid flowable liquid, which is a multifunctional modified polysiloxane emulsifier.

Embodiment 2

[0028] In a 500ml four-necked flask with a thermometer, agitator, nitrogen tube, and condenser, add 80.64g of α-16 olefin, 106.335g of low-hydrogen silicone oil with a hydrogen content of 0.25, and 27.00g of methyl sealant. Allyl-terminated polyoxyethylene ether (M=600), 27.00g of methoxypolyethylene glycol acrylate (M=600), 48.195g of isopropanol, stirred and heated to 70°C under nitrogen atmosphere, Add 0.145g of catalyst (effective content 1000ppm), stir the reaction at 70℃ for 10h to complete the reaction, connect to vacuum, keep the vacuum degree -0.08~-0.1MPa, 1~2h, cool down, get colorless to slightly yellow translucent or slightly Turbid flowable liquid, that is, multifunctional modified polysiloxane emulsifier.

Embodiment 3

[0030] Into a 500ml four-necked flask equipped with a thermometer, agitator, nitrogen tube, and condenser, add 80.64g of α-12 olefin, 144.11g of low-hydrogen silicone oil with a hydrogen content of 0.36, and 19.2g of butyl sealant. Allyl-terminated polyoxyethylene ether (M=400), 19.2g of methoxypolyethylene glycol methacrylate (M=400), 78.95g of isopropanol, under nitrogen atmosphere, stirring and heating to 80 ℃, add 0.342g of catalyst (effective content 1000ppm), stir the reaction at 80℃ for 8h to complete the reaction, connect to vacuum, keep the vacuum degree -0.08~-0.1MPa, 1~2h, cool down, get colorless to slightly yellow translucent Or a slightly turbid flowable liquid, which is a multifunctional modified polysiloxane emulsifier.

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Abstract

The invention discloses a polysiloxane emulsifier modified by multifunctional groups, which is composed of low hydrogen-containing silicone oil, end-capped polyether or polyether, methoxy polyethylene glycol acrylate or methoxy polyethylene glycol methyl It is prepared from acrylate and long-chain α-olefins by hydrosilylation reaction. Its structure is as follows: R1 is a polyether segment, R2 is an alkane segment, and R3 is methoxypolyethylene glycol acrylate or methoxy Polyethylene glycol methacrylate chain segments; by selecting suitable reactive monomers, the reactivity of each monomer tends to be consistent, avoiding cross-linking reactions between monomers, and the reaction is more thorough, with less monomer residue and side effects. Fewer reactions, good reproducibility of production and preparation, and more stable product quality; through optimization and screening, suitable functional groups are selected to modify polysiloxane, which enhances the adaptability of the product, and can be used as a W / O emulsifier to obtain soft silk Smooth skin feel and high emulsion stability at the same time.

Description

Technical field [0001] The patent of the invention relates to an emulsifier, in particular to a polyfunctional polysiloxane emulsifier and a preparation method thereof. Background technique [0002] Silicone has a long history as a personal skin care product. At first, linear polydimethylsiloxane and cyclic polydimethylsiloxane were mainly used for hand feel, diffusion ability, hair combability, sweat resistance, and odor resistance. The effect is good, but the compatibility or water solubility with cosmetic base materials is poor, so many modified polysiloxanes came into being. There are three main types of modification to siloxane: ①modifying group R is bonded to the main chain of siloxane (Si-OC connection); ②modifying group R is bonded to the side chain of siloxane (Si -C connection); ③The two modified groups R1 and R2 are respectively attached to different silicon atoms of the siloxane side chain, wherein R1 is a hydrophilic group and R2 is a lipophilic group. For the same...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/46B01F17/54C09K23/54
Inventor 徐由江朱红军高亮孙元民车芳丽邵鹏
Owner ZHANGJIAGANG GREAT CHEM
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