CN108786650B - Emulsifier composition and production process thereof - Google Patents
Emulsifier composition and production process thereof Download PDFInfo
- Publication number
- CN108786650B CN108786650B CN201810445238.3A CN201810445238A CN108786650B CN 108786650 B CN108786650 B CN 108786650B CN 201810445238 A CN201810445238 A CN 201810445238A CN 108786650 B CN108786650 B CN 108786650B
- Authority
- CN
- China
- Prior art keywords
- parts
- emulsifier
- stirring
- emulsifier composition
- polyoxyethylene ether
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/017—Mixtures of compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/42—Ethers, e.g. polyglycol ethers of alcohols or phenols
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/42—Ethers, e.g. polyglycol ethers of alcohols or phenols
- C09K23/46—Ethers of aminoalcohols
Abstract
The invention relates to the field of chemical industry, in particular to an emulsifier composition and a production process thereof. The production process comprises the following steps: (1) respectively weighing the emulsifier and the fatty amine polyoxyethylene ether for later use; (2) adding the emulsifier and the fatty amine polyoxyethylene ether which are weighed in the step (1) into a container to prepare a mixture; (3) and stirring the mixture at a high speed, and uniformly stirring to obtain the finished emulsifier composition. The invention has the following beneficial effects: (1) the preparation process is simple; (2) the raw material cost is low; (3) the emulsifying rate and the electrical stability are ideal.
Description
Technical Field
The invention relates to the field of chemical industry, in particular to an emulsifier composition and a production process thereof.
Background
Emulsifiers are surfactants which stabilize emulsions. Thus, after the emulsifier is added to the oil-water system, the water and oil can be mixed with each other to form a fully dispersed emulsion. Emulsifiers not only improve the stability of the emulsion, but also determine the type of emulsion.
The hydrophilicity and lipophilicity of the emulsifier are generally unbalanced, and the application occasions of the emulsifier are different, if the hydrophilic group of the emulsifier molecule is larger and stronger than the lipophilic group, the emulsifier belongs to a hydrophilic emulsifier, and an oil-in-water (O/W) emulsion is easy to form; conversely, if the lipophilic group of the emulsifier molecule is larger and stronger than the hydrophilic group, it is a lipophilic emulsifier and tends to form a water-in-oil (W/O) emulsion. In general, emulsifiers with high hydrophilicity are suitable for O/W emulsions, and emulsifiers with high lipophilicity are suitable for W/O emulsions.
The difference in emulsifying capacity is generally expressed by the "hydrophilic lipophilic balance" (i.e., H L B). the greater the H L B, the greater the hydrophilic effect, the more stable the oil-in-water emulsion, whereas the lesser the H L B, the greater the lipophilic effect, the more stable the water-in-oil emulsion.
For example, a method for preparing a fluorine-containing emulsifier disclosed in the Chinese patent document with an authorization publication number of CN105924375B comprises the following reaction steps: (1) using pentafluoroiodosulfane as a telomerization agent, carrying out telomerization on tetrafluoroethylene under the catalytic action of a catalyst Hg, and obtaining pentafluorosulfanyl perfluoroalkyl iodide under the radiation condition. (2) Reacting pentafluorosulfanyl perfluoroalkyl iodide with sulfite in a solvent to generate corresponding sulfonate, and then recrystallizing and purifying to obtain the fluorine-containing emulsifier for the polymerization of fluorine-containing monomer emulsion. The prepared fluorine-containing emulsifier has the main chain carbon number of less than 8 and still has higher activity, the main chain number is 4 or 6, the biological accumulation of the fluorine-containing emulsifier is greatly reduced, and the fluorine-containing emulsifier is superior to the traditional hydrocarbon fluorine-containing emulsifier in the aspects of efficiency or effectiveness. However, it also has disadvantages such as relatively complicated preparation process, high raw material cost, low yield of final product, and inability to meet large-scale application, and it is an ionic emulsifier, and thus its emulsification rate and electric stability are not ideal.
Disclosure of Invention
The invention aims to overcome the problems of relatively complex preparation process, high raw material cost, low final product yield, and unsatisfactory emulsification rate and electric stability in the prior art, and provides an emulsifier composition with simple preparation process, low raw material cost and ideal emulsification rate and electric stability and a production process thereof
In order to achieve the purpose, the invention adopts the following technical scheme:
a process for producing an emulsifier composition, said process comprising the steps of:
(1) respectively weighing the emulsifier and the fatty amine polyoxyethylene ether for later use;
(2) adding the emulsifier and the fatty amine polyoxyethylene ether which are weighed in the step (1) into a container to prepare a mixture;
(3) and stirring the mixture at a high speed, and uniformly stirring to obtain the finished emulsifier composition.
The emulsifier and the fatty amine polyoxyethylene ether are compounded to form the emulsifier composition through a compounding process, and the emulsifier composition has the advantages of simple process and low raw material cost. Meanwhile, the emulsifier composition is a nonionic emulsifier, has good electrical stability, and can not deteriorate in the long-term transportation and storage processes. Effectively enlarging the application range.
Preferably, the following steps are further provided between the step (2) and the step (3):
and (2.1) adding the amino organic silicon hyperbranched resin and the viscosity regulator into the mixture obtained in the step (2) to form the mixture by matching.
The amino-terminated organic silicon hyperbranched resin is mainly a branched part in a molecular main chain, and has more branch points. The molecules have a compact structure similar to a sphere, the hydrodynamic radius of gyration is small, molecular chain entanglement is less, so the influence of the increase of relative molecular mass on viscosity is less, and the molecules have a plurality of functional end groups, the solubility and the viscosity of the molecules in various solvents can be improved by modifying the molecules, and meanwhile, amino contained in the end groups can react with other functional groups after being cured, so that polymerization can be effectively carried out, and the mechanical property of the film after emulsion curing can be enhanced.
Preferably, the preparation method of the amino-terminated silicone hyperbranched resin is as follows:
(1) taking a three-neck flask, adding 100 parts of vinyltrimethoxysilane, 190 parts of dimethylchlorosilane, 100 parts of tetrahydrofuran and 2 parts of ferric trichloride under the protection of nitrogen, stirring at 45 ℃ for reaction for 3 hours, then reducing the temperature to room temperature, adding 5 parts of activated carbon, stirring for 30 minutes, filtering, evaporating to remove tetrahydrofuran, and then distilling to obtain tri (dimethylsiloxy) vinylsilane;
(2) taking a three-neck flask, adding 100 parts of the tri (dimethylsiloxy) vinylsilane obtained in the step (1) and 50 parts of toluene under the protection of nitrogen, then adding 0.2 part of a Kanst catalyst, heating to 100 ℃, and stirring for reacting for 5 hours to obtain hydrogen-terminated hyperbranched resin;
(3) and (3) adding 75 parts of allylamine into the hydrogen-terminated hyperbranched resin obtained in the step (2), continuously reacting for 2 hours, finishing the reaction, reducing the temperature to room temperature, adding 3 parts of activated carbon, stirring for 30 minutes, filtering, evaporating to remove toluene, and removing low-boiling-point substances by decompression to obtain the amino-terminated organosilicon hyperbranched resin.
The synthesis of the epoxy-terminated organosilicon hyperbranched resin comprises the steps of firstly removing chloromethane through the reaction of vinyl trimethoxy silane and dimethylchlorosilane under the catalysis of ferric trichloride to obtain tri (dimethylsiloxy) vinyl silane, then reacting vinyl in a monomer with silicon hydrogen through the silicon hydrogen addition reaction of the tri (dimethylsiloxy) vinyl silane to polymerize the hyperbranched resin with hydrogen as an end group, and then further performing the silicon hydrogen addition reaction on the hydrogen as the end group through allyl amine to obtain the epoxy-terminated organosilicon hyperbranched resin.
Preferably, the viscosity regulator is one or more of isopropanol, ethylene glycol monobutyl ether, n-butanol or ethylene glycol.
Preferably, the emulsifier is fatty alcohol-polyoxyethylene ether.
Preferably, the mass ratio of the emulsifier, the fatty amine polyoxyethylene ether, the amino-terminated silicone hyperbranched resin and the viscosity regulator in terms of mass fraction is (55-65): (55-65): (15-25): (10-20).
Preferably, the high-speed stirring speed is 1000-1200r/min, the stirring time is 0.5-1h, and the stirring temperature is room temperature.
Preferably, the emulsifier composition prepared by the process comprises the following raw materials in parts by mass: 55-65 parts of fatty alcohol-polyoxyethylene ether and 55-65 parts of fatty amine-polyoxyethylene ether.
Preferably, the emulsifier composition raw materials further comprise 15-25 parts of amino-terminated silicone hyperbranched resin and 10-20 parts of viscosity regulator according to mass fraction.
Preferably, the viscosity regulator is one or more of isopropanol, ethylene glycol monobutyl ether, n-butanol or ethylene glycol.
Therefore, the invention has the following beneficial effects: (1) the preparation process is simple; (2) the raw material cost is low; (3) the emulsifying rate and the electrical stability are ideal.
Detailed Description
The technical solution of the present invention is further described below by means of specific examples.
In the examples of the present invention, the raw materials used are those commonly used in the art, and the methods used in the examples are those conventional in the art, unless otherwise specified.
Example 1
A process for producing an emulsifier composition, said process comprising the steps of:
(1) respectively weighing 55 parts of fatty alcohol-polyoxyethylene ether and 55 parts of fatty amine-polyoxyethylene ether for later use;
(2) adding the polyoxyethylene ether and the fatty amine polyoxyethylene ether which are weighed in the step (1) into a container to prepare a mixture;
(3) and stirring the mixture at the room temperature for 1h at a high speed of 1000r/min, and uniformly stirring to obtain the finished emulsifier composition.
Example 2
A process for producing an emulsifier composition, said process comprising the steps of:
(1) respectively weighing 65 parts of fatty alcohol-polyoxyethylene ether and 65 parts of fatty amine-polyoxyethylene ether for later use;
(2) adding the polyoxyethylene ether and the fatty amine polyoxyethylene ether which are weighed in the step (1) into a container to prepare a mixture;
(3) stirring the mixture at high speed of 1200r/min for 0.5h at room temperature, and uniformly stirring to obtain the finished emulsifier composition.
Example 3
A process for producing an emulsifier composition, said process comprising the steps of:
(1) respectively weighing 60 parts of fatty alcohol-polyoxyethylene ether and 60 parts of fatty amine-polyoxyethylene ether for later use;
(2) adding the polyoxyethylene ether and the fatty amine polyoxyethylene ether which are weighed in the step (1) into a container to prepare a mixture;
(2.1) adding 15 parts of amino organic silicon hyperbranched resin, 5 parts of isopropanol as a viscosity regulator and 10 parts of ethylene glycol monobutyl ether into the mixture obtained in the step (2) to form the mixture;
(3) and stirring the mixture at the room temperature for 1h at a high speed of 1000r/min, and uniformly stirring to obtain the finished emulsifier composition.
The preparation method of the amino-terminated organic silicon hyperbranched resin comprises the following steps:
(1) taking a three-neck flask, adding 100 parts of vinyltrimethoxysilane, 190 parts of dimethylchlorosilane, 100 parts of tetrahydrofuran and 2 parts of ferric trichloride under the protection of nitrogen, stirring at 45 ℃ for reaction for 3 hours, then reducing the temperature to room temperature, adding 5 parts of activated carbon, stirring for 30 minutes, filtering, evaporating to remove tetrahydrofuran, and then distilling to obtain tri (dimethylsiloxy) vinylsilane;
(2) taking a three-neck flask, adding 100 parts of the tri (dimethylsiloxy) vinylsilane obtained in the step (1) and 50 parts of toluene under the protection of nitrogen, then adding 0.2 part of a Kanst catalyst, heating to 100 ℃, and stirring for reacting for 5 hours to obtain hydrogen-terminated hyperbranched resin;
(3) and (3) adding 75 parts of allylamine into the hydrogen-terminated hyperbranched resin obtained in the step (2), continuously reacting for 2 hours, finishing the reaction, reducing the temperature to room temperature, adding 3 parts of activated carbon, stirring for 30 minutes, filtering, evaporating to remove toluene, and removing low-boiling-point substances by decompression to obtain the amino-terminated organosilicon hyperbranched resin.
Example 4
A process for producing an emulsifier composition, said process comprising the steps of:
(1) respectively weighing 58 parts of fatty alcohol-polyoxyethylene ether and 62 parts of fatty amine-polyoxyethylene ether for later use;
(2) adding the polyoxyethylene ether and the fatty amine polyoxyethylene ether which are weighed in the step (1) into a container to prepare a mixture;
(2.1) adding 25 parts of terminal amino organic silicon hyperbranched resin and 20 parts of viscosity modifier n-butyl alcohol into the mixture obtained in the step (2) to form the mixture;
(3) stirring the mixture at room temperature at a high speed of 1200r/min for 1h, and uniformly stirring to obtain the finished emulsifier composition.
The preparation method of the amino-terminated organic silicon hyperbranched resin comprises the following steps:
(1) taking a three-neck flask, adding 100 parts of vinyltrimethoxysilane, 190 parts of dimethylchlorosilane, 100 parts of tetrahydrofuran and 2 parts of ferric trichloride under the protection of nitrogen, stirring at 45 ℃ for reaction for 3 hours, then reducing the temperature to room temperature, adding 5 parts of activated carbon, stirring for 30 minutes, filtering, evaporating to remove tetrahydrofuran, and then distilling to obtain tri (dimethylsiloxy) vinylsilane;
(2) taking a three-neck flask, adding 100 parts of the tri (dimethylsiloxy) vinylsilane obtained in the step (1) and 50 parts of toluene under the protection of nitrogen, then adding 0.2 part of a Kanst catalyst, heating to 100 ℃, and stirring for reacting for 5 hours to obtain hydrogen-terminated hyperbranched resin;
(3) and (3) adding 75 parts of allylamine into the hydrogen-terminated hyperbranched resin obtained in the step (2), continuously reacting for 2 hours, finishing the reaction, reducing the temperature to room temperature, adding 3 parts of activated carbon, stirring for 30 minutes, filtering, evaporating to remove toluene, and removing low-boiling-point substances by decompression to obtain the amino-terminated organosilicon hyperbranched resin.
Example 5
A process for producing an emulsifier composition, said process comprising the steps of:
(1) respectively weighing 60 parts of fatty alcohol-polyoxyethylene ether and 55 parts of fatty amine-polyoxyethylene ether for later use;
(2) adding the polyoxyethylene ether and the fatty amine polyoxyethylene ether which are weighed in the step (1) into a container to prepare a mixture;
(2.1) adding 25 parts of amino organic silicon hyperbranched resin and 10 parts of viscosity regulator ethylene glycol into the mixture obtained in the step (2) to form the mixture;
(3) and stirring the mixture at the room temperature for 1h at a high speed of 1100 r/min, and uniformly stirring to obtain the finished emulsifier composition.
The preparation method of the amino-terminated organic silicon hyperbranched resin comprises the following steps:
(1) taking a three-neck flask, adding 100 parts of vinyltrimethoxysilane, 190 parts of dimethylchlorosilane, 100 parts of tetrahydrofuran and 2 parts of ferric trichloride under the protection of nitrogen, stirring at 45 ℃ for reaction for 3 hours, then reducing the temperature to room temperature, adding 5 parts of activated carbon, stirring for 30 minutes, filtering, evaporating to remove tetrahydrofuran, and then distilling to obtain tri (dimethylsiloxy) vinylsilane;
(2) taking a three-neck flask, adding 100 parts of the tri (dimethylsiloxy) vinylsilane obtained in the step (1) and 50 parts of toluene under the protection of nitrogen, then adding 0.2 part of a Kanst catalyst, heating to 100 ℃, and stirring for reacting for 5 hours to obtain hydrogen-terminated hyperbranched resin;
(3) and (3) adding 75 parts of allylamine into the hydrogen-terminated hyperbranched resin obtained in the step (2), continuously reacting for 2 hours, finishing the reaction, reducing the temperature to room temperature, adding 3 parts of activated carbon, stirring for 30 minutes, filtering, evaporating to remove toluene, and removing low-boiling-point substances by decompression to obtain the amino-terminated organosilicon hyperbranched resin.
The emulsifier compositions obtained in the above examples were tested and the results are shown in the following table:
| item | Appearance of the product | Emulsification Rate (%) | Electric stability | Average particle diameter (μm) | Absorbance ratio |
| Comparative example | Uniform and non-layering | ＞65 | ＞250 | 4.32 | 1.65 |
| Example 1 | Uniform and non-layering | ＞75 | ＞300 | 2.86 | 1.42 |
| Example 2 | Uniform and non-layering | ＞75 | ＞300 | 3.12 | 1.35 |
| Example 3 | Uniform and non-layering | ＞85 | ＞350 | 2.25 | 1.24 |
| Example 4 | Uniform and non-layering | ＞85 | ＞400 | 2.18 | 1.18 |
| Example 5 | Uniform and non-layering | ＞85 | ＞350 | 2.06 | 1.11 |
Claims (8)
1. The production process of the emulsifier composition is characterized by comprising the following steps:
(1) respectively weighing the emulsifier and the fatty amine polyoxyethylene ether for later use;
(2) adding the emulsifier and the fatty amine polyoxyethylene ether which are weighed in the step (1) into a container to prepare a mixture, and then adding the amino silicone hyperbranched resin and the viscosity regulator into the mixture to prepare the mixture;
the preparation method of the amino-terminated organic silicon hyperbranched resin comprises the following steps:
(2-1) taking a three-neck flask, adding 100 parts of vinyltrimethoxysilane, 190 parts of dimethylchlorosilane, 100 parts of tetrahydrofuran and 2 parts of ferric trichloride under the protection of nitrogen, stirring at 45 ℃ for reacting for 3 hours, then reducing the temperature to room temperature, adding 5 parts of activated carbon, stirring for 30 minutes, filtering, evaporating to remove tetrahydrofuran, and then distilling to obtain tri (dimethylsiloxy) vinylsilane;
(2-2) adding 100 parts of the tris (dimethylsiloxy) vinylsilane obtained in the step (1) and 50 parts of toluene into a three-neck flask under the protection of nitrogen, then adding 0.2 part of a Kanst catalyst, heating to 100 ℃, and stirring for reacting for 5 hours to obtain hydrogen-terminated hyperbranched resin;
(2-3) adding 75 parts of allylamine into the hydrogen-terminated hyperbranched resin obtained in the step (2), continuously reacting for 2 hours, reducing the temperature to room temperature after the reaction is finished, adding 3 parts of activated carbon, stirring for 30 minutes, filtering, evaporating to remove toluene, and removing low-boiling-point substances by decompression to obtain amino-terminated organosilicon hyperbranched resin;
(3) and stirring the mixture at a high speed, and uniformly stirring to obtain the finished emulsifier composition.
2. The process for producing an emulsifier composition according to claim 1, wherein the viscosity modifier is one or more selected from the group consisting of isopropyl alcohol, ethylene glycol monobutyl ether, n-butanol, and ethylene glycol.
3. The process for producing an emulsifier composition according to claim 1, wherein the emulsifier is fatty alcohol-polyoxyethylene ether.
4. The production process of the emulsifier composition according to claim 3, wherein the mass ratio of the emulsifier, the fatty amine polyoxyethylene ether, the amino-terminated silicone hyperbranched resin and the viscosity modifier in parts by mass is (55-65): (55-65): (15-25): (10-20).
5. The process for preparing an emulsifier composition as claimed in claim 1, wherein the high-speed stirring rate is 1000-1200r/min, the stirring time is 0.5-1h, and the stirring temperature is room temperature.
6. An emulsifier composition prepared by the process of claim 1 or 2, wherein the emulsifier composition comprises the following raw materials in parts by mass: 55-65 parts of fatty alcohol-polyoxyethylene ether and 55-65 parts of fatty amine-polyoxyethylene ether.
7. The emulsifier composition according to claim 6, wherein the emulsifier composition raw materials further comprise 15-25 parts by mass of amino-terminated silicone hyperbranched resin and 10-20 parts by mass of viscosity modifier.
8. An emulsifier composition according to claim 7, wherein the viscosity modifier is a combination of one or more of isopropyl alcohol, ethylene glycol monobutyl ether, n-butanol, or ethylene glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810445238.3A CN108786650B (en) | 2018-05-10 | 2018-05-10 | Emulsifier composition and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810445238.3A CN108786650B (en) | 2018-05-10 | 2018-05-10 | Emulsifier composition and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108786650A CN108786650A (en) | 2018-11-13 |
| CN108786650B true CN108786650B (en) | 2020-07-17 |
Family
ID=64092142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810445238.3A Active CN108786650B (en) | 2018-05-10 | 2018-05-10 | Emulsifier composition and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108786650B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114456714B (en) * | 2021-12-15 | 2023-03-10 | 浙江亚厦装饰股份有限公司 | Low-viscosity and easy-leveling UV primer and preparation method and application thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0510093B8 (en) * | 2004-04-20 | 2022-12-27 | Dendritic Nanotechnologies Inc | dendritic polymers |
| CN106277911A (en) * | 2016-07-19 | 2017-01-04 | 无锡鸿孚硅业科技有限公司 | A kind of preparation method of silane emulsion waterproof agent for building |
-
2018
- 2018-05-10 CN CN201810445238.3A patent/CN108786650B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108786650A (en) | 2018-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108484933B (en) | Organic silicon emulsion and production process thereof | |
| EP3321304B1 (en) | Mixtures of cyclic branched d/t-type siloxanes and their ensuing products | |
| CN111072974B (en) | Method for preparing polyether modified polysiloxane | |
| EP2628771B1 (en) | Compositions containing polymers and metal atoms or ions and use thereof | |
| EP3467006A1 (en) | Mixtures of cyclic branched d/t-type siloxanes and their ensuing products | |
| CN107162154B (en) | Ternary combination flooding produced water load type reverse demulsifier and preparation method thereof | |
| DE102012210553A1 (en) | Silicone polyethers and process for their preparation from methylidene-bearing polyethers | |
| DE102010029723A1 (en) | Process for the preparation of organic silicon compounds | |
| CN1883740A (en) | Non-polyether type demulsifying agent and preparation method thereof | |
| CN108786650B (en) | Emulsifier composition and production process thereof | |
| CN106543734A (en) | A kind of high-performance anti creepage trace add-on type liquid silicon rubber and preparation method thereof | |
| CN101974162A (en) | Low-VOC (Volatile Organic Compound) self-emulsifying solid epoxy resin water-based emulsion and preparation method thereof | |
| EP2563846A2 (en) | Hydrophilic polyorganosiloxanes | |
| EP0797612B1 (en) | Method for preparing essentially cyclene-free polyorganosiloxanes and organofunctional siloxanes | |
| CN107081068B (en) | Infiltrating and vaporizing membrane and preparation method thereof | |
| CN101468301A (en) | Non-ionic anion polysiloxane surfactant and preparation method thereof | |
| CN112430333B (en) | Demulsifier, carbon nano tube/hyperbranched polymer and preparation method and application thereof | |
| Muzafarov et al. | New approaches in silicon production and recycling for sustainable future | |
| WO2021126516A1 (en) | Low isomer hydrosilylation | |
| CN114213666B (en) | Hydrophobic oleophobic fluorine-containing polyether modified cellulose and preparation method thereof | |
| CN108816055B (en) | Preparation method of biodegradable oil-water separation porous membrane | |
| JP2017538016A (en) | Method for preparing condensed crosslinked particles | |
| US6787601B2 (en) | Polymer synthesis | |
| CN112076502B (en) | Application of defoaming agent in polyether trisiloxane low surface tension system | |
| CN114213660A (en) | Preparation method and catalyst of organic silicon oil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |