JPS5863750A - Emulsified or solubilized silicone oil - Google Patents

Abstract

PURPOSE:The titled composition useful as a water repellent, etc., having improved stability, obtained by emulsifying or solubilizing a silicone oil in the presence of protein, protein decomposition product, surface active agent, etc. in a polyhydroxy compound or its aqueous solution. CONSTITUTION:<=90wt%, preferably 30-70wt% based on total emulsion or solution of silicone oil (e.g., straight-chain methylsilicone oil, etc.) is emulsified or solubilized with stirring in the presence of >=0.05, especially <=5wt% based on total amount with solution of protein (e.g., sodium caseinate, etc.), protein decomposition product (decomposition product by protease, etc.) and/or a surface active agent in >=30wt% based on total amount with protein, etc. of a polyhydroxy compound (e.g., propylene glycol, etc.) or its aqueous solution. The silicone oil is preferably blended with a solution of the polyhydroy compound kept at temperature to make it liquid. The composition is easily emulsified or dispersed into water only by adding it to water with stirring.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a silicone oil emulsion or solubilizer with good stability. More specifically, it relates to silicone oil emulsions and solubilizers with good stability that can be used as water repellent agents, mold release agents, polishing agents, antifoaming agents, lubricants, hydraulic oils, paint additives, heat transfer agents, etc. It is.

Conventionally, silicone oil emulsions in which silicone oil is emulsified and dispersed in water have been used as water repellent agents, mold release agents, antifoaming agents, etc., but these are not always fully satisfactory in terms of emulsion stability. Improvement is highly desired.

The present invention provides a silicone oil emulsion or solubilized product that can satisfy such demands. It is characterized by being emulsified or solubilized in the polyhydroxy compound or its aqueous solution in the presence of.

The silicone oil emulsion or solubilized product of the present invention will be explained in detail below.

Silicone oils that can be used in the silicone oil emulsion or solubilizer of the present invention include, for example, linear methyl silicone oil, branched methyl silicone oil, methylphenyl silicone oil, and their methyl groups are, for example, long-chain alkyl groups. , fatty acid residues, higher alcohol residues, and modified silicone oils substituted with organic groups such as amino groups, epoxy groups, and methacrylic groups.

Examples of proteins used in the present invention include water-soluble proteins such as sodium caseinate, soybean protein, skim milk powder, whey powder, raw egg white, dried egg white, blood meal, meat meal, microbial protein, peptone, yeast extract, albumin, lactalbumin, and globulin. , lactalbumin, glutelin, protamine, histamine, etc., and as protein decomposition products, those obtained by decomposing the above-mentioned proteins using protease, acid, etc. can be used.

Furthermore, various surfactants such as anionic, nonionic, cationic, and amphoteric surfactants can be used. Examples of anionic surfactants include soap N-acylamino acid salts, alkyl ether carboxylic acids, carboxylates such as acylated peptides, alkylsulfonic acids, alkylbenzenes, sulfonates, alkylnaphthalenesulfonates, and their lumin condensates. Hardware, dialkyl sulfocono・
Sulfonic acid salts such as phosphoric acid ester salts, α-olefin sulfonic acids, N-acylmethyl taurine, etc., such as sulfated oils,
Sulfuric ester salts such as alkyl sulfates, alkyl ether sulfates, alkylarine ether sulfates, and alkylamido sulfates; phosphate ester salts such as alkyl phosphates, alkyl ether phosphates, and alkylaryl ether phosphorus salts, etc. can be mentioned. Examples of nonionic surfactants include polyoxyethylene alkyl ether, holoxyethylene secondary alcohol ether, polyoxyethylene alkylphenyl ether, ethylene oxide derivatives of alkylphenol formalin condensates, and polyoxyethylene polyoxypropylene block polymers. Ether ester type activators such as polyoxyethylene glycerin fatty acid 2 ester, polyoxyethylene castor oil, hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, polyquine ethylene sorbitol fatty acid ester, etc. Ester type activators such as glycol fatty acid ester, fatty acid monoglyceride, sorbitan fatty acid ester, sucrose fatty acid ester, nitrogen-containing type activators such as fatty acid alkanolamide, polyoxyethylene fatty acid amide, polyoxyethylene alkyl amide, alkylamine oxide, etc. can be mentioned. Further, examples of cationic surfactants include alkylamine salts, quaternary ammonium salts, benzalkonium salts, pembytonium chloride, and pyridinium salts, and examples of amphoteric surfactants include carboxybenoin type, sulfobetaine type, Examples include aminocarboxylic acid salts, imidazolinium μ betaine, lecithin, etc. In addition, fluorine-based surfactants,
Silicone surfactants and the like can also be used. The composition of the present invention uses one or more selected from the group consisting of proteins, protein decomposition products, and surfactants as essential components. It is preferable to use

Furthermore, as polyhydroxy compounds, for example, dihydric alcohols such as propylene glycol, trihydric alcohols such as glycerin, etc.
Hydrolyzed alcohols such as sorbitol, mannitol, monosaccharides such as dulcose, fructose, disaccharides and hexasaccharides and higher oligosaccharides such as sucrose, maltose, caractose, and higher oligosaccharides, starch. Various types of conversion products, water + rice, dextrin, high fructose isomerized sugar, syrup, honey, jams, etc. that can be used can be used. The liquid polyhydroxy compound is one selected from the polyhydroxy compounds mentioned above that is liquid at room temperature, such as propylene glycol, glycerin, and the like.

Regarding the usage ratio of each component of the present invention, one or more components selected from the group consisting of proteins, protein decomposition products, and surfactants are used at a ratio of 0.0% to the total amount of the components and the polyhydroxy compound or its aqueous solution. 0.005% (the same below weight basis), preferably 0.05% or more, particularly preferably 5% or less, and the polyhydroxy compound accounts for 30% or more, preferably 40% or more of the above total number. , for example, when using a liquid polyhydroxy compound, 100%
It is possible to get close. Further, silicone oil may be used up to about 90% of the total emulsified or solubilized material, but preferably 50 to 70%.

The physical properties of the emulsified or solubilized product of the present invention can be changed from liquid to non-flowable paste or gel depending on the purpose by appropriately selecting the type of silicone oil or polyhydroxy compound and its usage ratio. It is also possible to further contain various additional components if necessary.

The silicone oil emulsion or solubilizer of the present invention is produced by keeping a polyhydroxy compound or an aqueous solution thereof at a temperature where they are in a liquid state and the silicone oil is in a liquid state, and then adding the polyhydroxy compound or an aqueous solution thereof while stirring. For example, by gradually adding silicone oil maintained at a temperature in a liquid state,
It can be obtained by emulsification or solubilization.

In producing this emulsified or solubilized composition, proteins, protein decomposition products, or interfacial methods may be added to the system, such as silicone oil maintained at a temperature in a liquid state.
It may also be added, for example, to a polyhydroxy compound maintained at a certain temperature in liquid form or to a water solution thereof, but the latter is preferred.

Further, for mixing and stirring of the emulsification or solubilization, a homomixer or the like may be used if necessary, and the emulsification or oiJ solubilization can be made more stable by passing it through a homogenizer.

The silicone oil emulsified or solubilized product of the present invention has silicone oil emulsified or solubilized as very fine particles, has excellent oral stability, and has excellent performance when used for various purposes. , more effectively.

In addition, the emulsified or solubilized silicone oil of the present invention is easily emulsified or dispersed in water simply by cooling it in water and stirring, and is stable in that a small amount of silicone oil is emulsified and dispersed in a large amount of water. It can also be used for the preparation of compositions.

The silicone oil emulsion or solubilized product of the present invention can be used for various purposes such as water repellent treatment agents, mold release agents, polishing agents, antifoaming agents, hydraulic fluids, metal working fluids, paint additives, and heat transfer agents. It is something that can be used.

Examples of the present invention will be shown below to specifically clarify the effects of the present invention.

Example 18 parts of deglucose, 20 parts of sodium caseinate, and 2 parts of sodium caseinate were dissolved in 60 parts of water, and the resulting aqueous solution was stirred with a homomixer.
When 30 parts of Toshiba Silicone TSA750) was gradually added, an emulsified or solubilized silicone oil was obtained.

This silicone oil emulsion or solubilizer had excellent stability over time, and when added to water and stirred, it was easily emulsified and dispersed in water.

When this silicone oil emulsion or solubilized product was used as an antifoaming agent during tofu production and an antifoaming agent during nori papermaking, it exhibited an extremely excellent antifoaming effect.Example 2 Polyoxyethylene was added to 70 parts of propylene glycol. When 1 part of sorbitan fatty acid ester and 10 parts of water were added and mixed, 19 parts of silicone oil was gradually added to the resulting solution while stirring with a homomixer. Obtained. This silicone oil emulsion or solubilization has excellent oral stability, and when it is added to 100 parts of water, mixed and stirred, a composition with stable emulsion is obtained, and the resulting composition is used for aqueous hydraulic fluids. It had sufficiently excellent performance as a base for.

Example 3 30 parts of glycerin, 5 parts of sodium caseinate and 7 parts of water
While stirring the resulting solution with a homomixer, 30 parts of silicone oil was gradually added thereto, and an emulsified or solubilized silicone oil was obtained. When this silicone oil emulsion or solubilized product was stable over time and was used for the polishing of automobiles, very excellent effects were exhibited.

Actually, flowing side 4 30 parts of propylene glycol and higher alcohol.

40 parts of silicone oil was gradually added to the aqueous solution obtained by dissolving 2 parts of ethoxylate in 70 parts of water with a homomixer, and an emulsified or solubilized product of silicone oil was obtained. It was done. This emulsified or solubilized product was easily emulsified and dispersed when added to water. Emulsified in this water,
When textile products were treated with the dispersed emulsion and dried, the textile products had excellent water repellency.

Example 5 Two Woolly Tetron yarns (No. 75) were pulled together, subjected to a strong twist of 600 times/m, heat set, and softened using a conventional method.

Next, the yarn was drawn at a rate of 91 to 2 cm per meter, and was further run on solid paraffin to adhere paraffin to the yarn surface. The average coverage was 31/1002 yarns.

45 parts and 50 parts of water were uniformly mixed, and 20 parts of licon oil and 10 parts of mineral oil were gradually added thereto to obtain a uniform solubilized product. When this silicon oil and mineral oil-containing solubilized material was poured into water and mixed, a composition emulsified and dispersed in water was obtained.

Using the silicone oil-containing composition thus obtained, the woolly Tetoron yarn that had been subjected to the paraffin treatment was treated. The average amount of adhesion during this treatment was 41 per 100 f of yarn. The obtained yarn had an extremely good elongation rate of 55% or more, and could be sufficiently used as a needle thread for a high-speed sewing machine running at 4500 rpm.

Example 6 When 5 parts of sodium caseinate and 95 parts of glycerin were mixed and 50 parts of silicone oil was gradually added thereto, a uniform solubilized product was obtained.

Cosmetics were manufactured using this silicone oil-containing solubilized product as follows.

■Shampoo lauryl sulfate triethanolamine salt 16% coconut oil fatty acid jetanolamide 15 tyranolin oil
3 chinonionic activator
9% silicone oil-containing solubilizer
10% water
47% fragrance
A small amount of this shampoo improved the shine and set properties of the hair, and also accelerated the drying time after washing.

■Protective cream liquid A! :' Solution B was heated to 75°C, and Solution A was gradually added to Solution B, and cooled to 40°C while stirring to produce a protective cream. Note that the fragrance was added at 40°C.

This cream forms a protective film on the skin that does not easily come off even when washed with soap, and is water repellent, so it can be used against lubricants, fuels, and chemicals. It was effective in preventing rough hands caused by detergents, vegetable matter, etc.

Example 7 When 5 parts of sodium caseinate and 95 parts of propylene glycol were mixed and 30 parts of silicone oil was gradually added thereto, a uniform solubilized product was obtained.

This solubilized material was diluted with water, emulsified and dispersed, and a soft cloth was dipped into the solution and dried.

Fabrics treated in this way can be used for glass, lenses, ceramics@
It was very suitable for polishing dishes, lacquerware, leather goods, etc., and could give these items a shine.

Example 8 A uniform solubilized product was obtained by mixing 5 parts of kayain sodium and 95 parts of ethylene glycol and gradually adding 30 parts of silicone oil into the mixture.

This silicone oil-containing solubilized product was applied to the paint at 0.0%.
When 0.05% was added, the coating film spread better and the brushing became lighter. Furthermore, the resulting coating film had increased water and weather resistance and improved gloss.

Example 9 When 0.01% of the silicone oil-containing solubilized product obtained in Example 8 was added to the mimeograph ink, printing became clearer and roller slippage was improved.

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Claims (1)

[Claims] 7. A silicone oil emulsion or solubilizer, characterized in that silicone oil is emulsified or solubilized in a polyhydroxy compound or an aqueous solution thereof in the presence of a protein, a protein decomposition product, or/and a surfactant.