Polyfunctional-group-modified polysiloxane emulsifier and preparation method thereof

A polysiloxane and multifunctional technology, which is applied in the field of polyfunctional modified polysiloxane emulsifier and its preparation, can solve problems such as product performance decline, system viscosity increase, product viscosity increase, etc. The effect of enhanced sexuality, less side reactions and stable product quality

Active Publication Date: 2014-12-03
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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  • Polyfunctional-group-modified polysiloxane emulsifier and preparation method thereof
  • Polyfunctional-group-modified polysiloxane emulsifier and preparation method thereof
  • Polyfunctional-group-modified polysiloxane emulsifier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In a 500ml four-necked flask equipped with a thermometer, stirrer, nitrogen tube, and condenser, add 80.64g of α-16 olefins, 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 of isopropanol, under a nitrogen atmosphere, stirred and heated to 60°C, added 0.023g of catalyst (effective content 1000ppm), stirred at 60°C for 12h to complete the reaction, inserted Vacuum, keep the vacuum degree -0.08~-0.1MPa, 1~2h, cool down, get a colorless to light yellow translucent or slightly turbid flowable liquid, which is the polyfunctional modified polysiloxane emulsifier.

Embodiment 2

[0028] In a 500ml four-neck flask equipped with a thermometer, stirrer, nitrogen tube, and condenser tube, add 80.64g of α-16 olefins, 106.335g of low hydrogen-containing silicone oil with a hydrogen content of 0.25, and 27.00g of methyl-capped 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 a nitrogen atmosphere, Add 0.145g of catalyst (effective content 1000ppm), stir the reaction at 70°C for 10h to end the reaction, connect to vacuum, keep the vacuum degree -0.08~-0.1MPa, 1~2h, cool down, and get a colorless to light yellow translucent or light yellow The turbid flowable liquid is the polyfunctional modified polysiloxane emulsifier.

Embodiment 3

[0030] In a 500ml four-neck flask equipped with a thermometer, a stirrer, a nitrogen tube, and a condenser tube, add 80.64g of α-12 olefins, 144.11g of low-hydrogen silicone oil with a hydrogen content of 0.36, and 19.2g of butyl-capped Allyl-terminated polyoxyethylene ether (M=400), methoxy polyethylene glycol methacrylate (M=400) of 19.2g, isopropanol of 78.95g, under nitrogen atmosphere, stirring is heated up to 80 ℃, add 0.342g of catalyst (effective content 1000ppm), stir the reaction at 80℃ for 8h to end the reaction, connect to vacuum, keep vacuum degree -0.08~-0.1MPa, 1~2h, cool down, and get colorless to light yellow translucent Or slightly turbid and flowable liquid, that is, polyfunctional modified polysiloxane emulsifier.

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Abstract

The invention discloses a polyfunctional-group-modified polysiloxane emulsifier which is prepared by carrying out silicon hydrogenation reaction on low-hydrogen-content silicon oil, terminated polyether or polyether, methoxypolyethylene glycol acrylate or methoxypolyethylene glycol methacrylate, and long-chain alpha-olefin used as raw materials. The structure of the polyfunctional-group-modified polysiloxane emulsifier is disclosed in the specification, wherein R1 is a polyether chain segment, R2 is an alkane chain segment, and R3 is a methoxypolyethylene glycol acrylate or methoxypolyethylene glycol methacrylate chain segment. By adopting proper reaction monomers, the reaction activities of the monomers are approximate to the same to avoid the crosslinking reaction among the monomers, and thus, the method has the advantages of more thorough reaction, fewer monomer residues, fewer side reactions, favorable production reproducibility and more stable product quality. By optimizing the screening, proper functional groups are adopted to modify the polysiloxane, so that the adaptability of the product is enhanced. When being used as a W / O emulsifier, the polyfunctional-group-modified polysiloxane emulsifier can obtain soft and smooth skin sensation and have high emulsifying stability.

Description

technical field [0001] The patent of the invention relates to an emulsifier, in particular to a multifunctional modified polysiloxane emulsifier and a preparation method thereof. Background technique [0002] Silicone has a long history as a personal skin care product. Initially, linear polydimethylsiloxane and cyclopolydimethylsiloxane were mainly used. The effect is good, but the compatibility or water solubility with the cosmetic base material is poor, so many modified polysiloxanes have emerged as the times require. There are three main types of modification of siloxane: ① modifying group R is combined on the main chain of siloxane (Si-O-C connection); ② modifying group R is combined on the side chain of siloxane (Si-O-C connection); -C connection); ③ two modified groups R1 and R2 are respectively combined on different silicon atoms of the siloxane side chain, wherein R1 is a hydrophilic group and R2 is a lipophilic group. For the same molecule R can represent both R1 ...

Claims

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Application Information

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Patent Type & Authority Applications(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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