Suspension thickening composition and application thereof

Abstract

The invention discloses a suspension thickening composition and application, belongs to the field of cosmetic technology, the suspension thickening composition, including polyacrylic acid polymer and suspending agent; the mass ratio of the polyacrylic acid polymer and the suspending agent is (0.2-1): (1-6); the polyacrylic acid polymer is acrylic acid (ester) class / C10-30 alkyl acrylate cross-linked polymer; the suspending agent includes the following components in percentage by mass: 1-6% glycerol, 0.3-0.9% microcrystalline cellulose, 0.1-1.5% sodium carboxymethyl cellulose, 0.1-0.5% preservative, 91.1-98.5% water. The suspension thickening composition has excellent suspension thickening stabilizing effect, can better stabilize the frosted particles after suspension water absorption becomes heavy, and when applied to a surface active system, further improves stability and suspension effect.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, and in particular to a suspension thickening composition and application thereof. Background Art

[0002] Suspension thickeners have a wide range of applications in cosmetics. Their primary functions include suspension, stabilization, thickening, and improving product appearance. In particular, suspension thickeners can easily achieve stabilization even when processing difficult-to-dissolve and difficult-to-stabilize ingredients like emulsified silicones. The applications of suspension thickeners in cosmetics are primarily reflected in the following aspects: 1. Improving product stability and suspension: Suspension thickeners effectively enhance the suspension stability of solid particles in cosmetics, preventing particle sedimentation or separation during storage and use, thereby ensuring product stability and consistency. 2. Improving product rheological properties: Suspension thickeners increase the viscosity of cosmetics and impart ideal rheological properties. This makes the product easier to apply and spread, enhancing the user experience. 3. Improving product clarity and gloss: Suspension thickeners exhibit excellent transparency, enabling the creation of highly transparent cosmetics. They also enhance the product's smoothness and gloss, leaving the skin looking smoother and more refined. 4. Enhancing the sensory experience: Suspension thickeners can make cosmetics softer and more delicate, making them easier to spread and absorb. This not only improves the user experience of the product, but also enhances the moisturizing and nourishing effects of the product.

[0003] The stability of current suspension thickening stabilizers in high and low temperature environments is often seriously affected, resulting in freezing, stratification and other phenomena. Especially when suspending and stabilizing frosted particles, particles are prone to sinking, affecting the shelf life of the product.

[0004] In view of this, this application is filed. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a suspension thickening composition and application thereof, which has excellent suspension thickening and stabilizing effect.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A suspension thickening composition comprising a polyacrylic acid polymer and a suspending agent; the mass ratio of the polyacrylic acid polymer to the suspending agent is (0.2-1):(1-6);

[0008] The polyacrylic acid polymer is an acrylic acid (ester) / C10-30 alkanol acrylate cross-linked polymer;

[0009] The suspending agent comprises the following components in percentage by mass: 1-6% glycerol, 0.3-0.9% microcrystalline cellulose, 0.1-1.5% sodium carboxymethyl cellulose, 0.1-0.5% preservative, and 91.1-98.5% water.

[0010] As a preferred embodiment of the present invention, the mass ratio of the polyacrylic acid polymer to the suspending agent is (0.3-0.7): (2-5).

[0011] As a preferred embodiment of the present invention, the mass ratio of the polyacrylic acid polymer to the suspending agent is (0.4-0.6): (3-4).

[0012] As a preferred embodiment of the present invention, the suspending agent comprises the following components in percentage by mass: 2-5% glycerol, 0.4-0.8% microcrystalline cellulose, 0.5-1% sodium carboxymethyl cellulose, 0.3-0.5% preservative, and 93-96.5% water.

[0013] As a preferred embodiment of the present invention, the average particle size of the microcrystalline cellulose is 15 to 180 μm.

[0014] As a preferred embodiment of the present invention, the average particle size of the microcrystalline cellulose is 50 to 100 μm.

[0015] As a preferred embodiment of the present invention, the weight average molecular weight of the sodium carboxymethyl cellulose is 250,000 to 395,000, and the degree of substitution is 0.7 to 0.9.

[0016] As a preferred embodiment of the present invention, the preservative includes at least one of sodium benzoate, phenoxyethanol, p-hydroxyacetophenone, 1,2-hexanediol, ethylhexylglycerin, and 1,2-pentanediol.

[0017] As a preferred embodiment of the present invention, in the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose and sodium carboxymethyl cellulose to the mass of the polyacrylic acid polymer is (0.04-0.3):1.

[0018] The present invention also provides an application of the suspension thickening composition in the preparation of cosmetics.

[0019] The present invention also provides a surfactant system comprising the above-mentioned suspension thickening composition.

[0020] As a preferred embodiment of the present invention, the mass percentage of the suspension thickening composition in the surfactant system is 0.5-7%.

[0021] As a preferred embodiment of the present invention, the present invention further includes the following components in percentage by weight: 1-5% moisturizing agent, 0.01-0.1% chelating agent, 20-30% anionic surfactant, 5-15% amphoteric surfactant, 1-20% alkyl glycoside surfactant, 0.1-1% pH regulator, 0.3-0.5% phenoxyethanol, 0.01-1% sodium chloride, 0.2-0.5% sodium benzoate, 0.1-2% friction agent, and 30-72% water.

[0022] As a preferred embodiment of the present invention, the abrasive is at least one of mannan scrub particles, sodium polyacrylate scrub particles, silica scrub particles, sea salt scrub particles, bamboo charcoal scrub particles, moringa seed scrub particles, and jojoba scrub particles.

[0023] As a preferred embodiment of the present invention, the moisturizing agent includes at least one of glycerin, butylene glycol, methylpropanediol, dipropylene glycol, glyceryl polyether-26, sorbitol, betaine, trehalose, xylitol, and polyethylene glycol.

[0024] As a preferred embodiment of the present invention, the chelating agent includes at least one of disodium EDTA and tetrasodium diethylamine glutamate.

[0025] As a preferred embodiment of the present invention, the pH regulator includes at least one of citric acid, sodium citrate, malic acid, lactic acid, arginine, sodium hydroxide, potassium hydroxide, tromethamine, aminomethyl propanol, tetrahydroxypropyl ethylenediamine, and triethanolamine.

[0026] As a preferred embodiment of the present invention, the anionic surfactant includes at least one of sodium C14-16 olefin sulfonate, sodium lauryl polyether sulfate, and sodium lauryl sulfate.

[0027] As a preferred embodiment of the present invention, the amphoteric surfactant includes at least one of cocamidopropyl betaine and lauryl hydroxysulfonyl betaine.

[0028] As a preferred embodiment of the present invention, the alkyl glycoside surfactant includes at least one of octyl / decyl glucoside, decyl glucoside, and coconut glucoside.

[0029] The present invention also provides an application of a surfactant system in the preparation of cosmetics.

[0030] The beneficial effects of the present invention are as follows: the present invention uses an acrylic acid (ester) / C10-30 alkyl acrylate cross-linked polymer and a suspending agent composed of glycerol, microcrystalline cellulose, sodium carboxymethyl cellulose, a preservative, and water as a suspension thickening composition; the cross-linked acrylic acid (ester) / C10-30 alkyl acrylate cross-linked polymer chain is opened to expose more hydrophobic groups; the main chain of sodium carboxymethyl cellulose carries a negative charge; the two act together to transform the micelle morphology into a worm-like micelle, generate a negative charge along the main chain of the polymer, and transform the curled polymer into an unfolded structure, thereby generating a yield value and stabilizing the system; sodium carboxymethyl cellulose and microcrystalline cellulose can form a large number of hydrogen bonds in water to form a 3D nano-network structure. The molecules can adsorb and cross-link with each other to produce a unique network structure to stabilize and suspend materials. Acrylates / C10-30 alkyl acrylate cross-linked polymer, sodium carboxymethyl cellulose and microcrystalline cellulose form hydrogen bonds to form a unique 3D nano-network structure associated with the polymer chain structure. The superposition of multiple interactions produces a synergistic effect. It has a stronger suspension ability than a suspension system constructed by a single component or any two components, can stably suspend frosted particles that have become heavier after absorbing water, and has broad application prospects. When the suspension thickening composition of the present invention is applied to a surfactant system, the mixed micelles of the surfactant can form a more complex spatial network structure, further improving the stability and suspension effect. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] In this application, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.

[0033] In this application, when referring to numerical ranges, unless otherwise specified, the numerical ranges are considered continuous and include the minimum and maximum values ​​of the range, as well as every value between such minimum and maximum values. Further, when a range refers to an integer, every integer between the minimum and maximum values ​​of the range is included. In addition, when multiple ranges are provided to describe a feature or characteristic, the ranges can be combined. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all subranges subsumed therein.

[0034] In the present application, there is no particular limitation on the specific dispersion and stirring treatment methods.

[0035] Unless otherwise specified, the components, raw materials or instruments used in the embodiments and comparative examples of the present invention are all commercially available raw materials or instruments, and the components and raw materials used in each parallel experiment are all of the same kind.

[0036] Among them, acrylic acid (esters) / C10-30 alkyl acrylate crosspolymer-1: Lubrizol, brand SC-800POLYMER.

[0037] Acrylates / C10-30 Alkyl Acrylate Crosspolymer-2: Lubrizol, brand SC-500POLYMER.

[0038] Acrylates / C10-30 Alkyl Acrylate Crosspolymer-3: Lubrizol, brand SC-200POLYMER.

[0039] Microcrystalline cellulose-1: average particle size is 100 μm, produced by Jiangsu Xidian Pharmaceutical Excipients Co., Ltd., brand PH-301.

[0040] Microcrystalline cellulose-2: average particle size is 50 μm, produced by Jiangsu Xidian Pharmaceutical Excipients Co., Ltd., brand PH-302.

[0041] Microcrystalline cellulose-3: average particle size is 15 μm, Jiangsu Xidian Pharmaceutical Excipients Co., Ltd., brand PH-105.

[0042] Microcrystalline cellulose-4: average particle size is 180 μm, produced by Jiangsu Xidian Pharmaceutical Excipients Co., Ltd., brand PH-200.

[0043] Sodium carboxymethyl cellulose-1: weight average molecular weight is 250,000, degree of substitution is 0.7, Ashland, brand: 7MFPH.

[0044] Sodium carboxymethyl cellulose-2: weight average molecular weight is 395,000, degree of substitution is 0.9, Ashland, brand: 9M31FPH.

[0045] Sodium carboxymethyl cellulose-3: weight average molecular weight is 395,000, degree of substitution is 1.2, Ashland, brand: 12M31P.

[0046] Sodium carboxymethyl cellulose-4: weight average molecular weight is 90500, degree of substitution is 0.7, Ashland, brand: 7L2P.

[0047] The remaining raw materials are of conventional commercial cosmetic grade.

[0048] The embodiment of the present application provides a suspension thickening composition, comprising a polyacrylic acid polymer and a suspending agent; the mass ratio of the polyacrylic acid polymer to the suspending agent is (0.2-1): (1-6);

[0049] The polyacrylic acid polymer is an acrylic acid (ester) / C10-30 alkanol acrylate cross-linked polymer;

[0050] The suspending agent comprises the following components in percentage by mass: 1-6% glycerol, 0.3-0.9% microcrystalline cellulose, 0.1-1.5% sodium carboxymethyl cellulose, 0.1-0.5% preservative, and 91.1-98.5% water.

[0051] Among them, the acrylic acid (ester) / C10-30 alkyl acrylate crosslinked polymer has a thickening effect through the space-filling effect generated by the swelling of the polymer. It has excellent thickening efficiency, transparency and suspension properties, and can effectively suspend natural beads and scrubs. At the same time, the acrylic acid (ester) / C10-30 alkyl acrylate crosslinked polymer is used in the surfactant system without negatively affecting the volume and morphological quality of the foam.

[0052] Among them, microcrystalline cellulose has a thickening effect through hydrogen bonding. Microcrystalline cellulose can form a relatively stable colloidal microcrystalline cellulose, which can form a highly thixotropic gel structure carrier when evenly dispersed in a liquid. Its unique network structure can stably suspend solid matter. It can effectively suspend abrasive particles without changing the foam structure or inhibiting foam.

[0053] Among them, sodium carboxymethyl cellulose can form a large number of hydrogen bonds in water, increase the intermolecular force, promote the formation of network structure, and hinder the free flow of water molecules. The main chain of sodium carboxymethyl cellulose carries a negative charge and can form hydrogen bonds with water. The molecules can adsorb and cross-link with each other to form a spring-like structure, effectively increasing the viscosity and improving the stability of the system.

[0054] The present invention creatively uses acrylic acid (ester) / C10-30 alkyl acrylate cross-linked polymer and a suspending agent composed of glycerol, microcrystalline cellulose, sodium carboxymethyl cellulose, a preservative, and water as a suspension thickening composition. The cross-linked acrylic acid (ester) / C10-30 alkyl acrylate cross-linked polymer chain is opened to expose more hydrophobic groups. The main chain of sodium carboxymethyl cellulose has a negative charge. The two act together to transform the micelle morphology into a worm-like micelle, generate negative charges along the main chain of the polymer, and transform the curled polymer into an unfolded structure, generating a yield value and stabilizing the system. Sodium carboxymethyl cellulose and microcrystalline cellulose can form a large number of hydrogen bonds in water to form a 3D nano-network structure. The molecules They can adsorb and cross-link with each other to produce a unique network structure to stabilize and suspend materials. Acrylic acid (ester) / C10-30 alkyl acrylate cross-linked polymer, sodium carboxymethyl cellulose and microcrystalline cellulose form hydrogen bonds to form a unique 3D nano-network structure associated with the polymer chain structure. The superposition of multiple interactions produces a synergistic effect. Compared with the suspension system constructed by a single component or any two components, it has a stronger suspension ability and can stably suspend frosted particles that have become heavier after absorbing water. It has broad application prospects. When the suspension thickening composition of the present invention is applied to a surfactant system, the mixed micelles of the surfactant can form a more complex spatial network structure, further improving the stability and suspension effect.

[0055] In one embodiment, the mass ratio of the polyacrylic acid polymer to the suspending agent is (0.3-0.7): (2-5). In particular, when the mass ratio of the polyacrylic acid polymer to the suspending agent is within this range, it has a better suspension thickening and stabilizing effect, and can better stably suspend the frosted particles that have absorbed water and become heavier. When used in a surfactant system, the stability and suspension effect are further improved.

[0056] In one embodiment, the mass ratio of the polyacrylic acid polymer to the suspending agent is (0.4-0.6): (3-4). Especially when it is within this range, the suspension thickening and stabilizing effect can be further improved.

[0057] In one embodiment, the suspending agent includes the following components in percentage by mass: 2-5% glycerin, 0.4-0.8% microcrystalline cellulose, 0.5-1% sodium carboxymethyl cellulose, 0.3-0.5% preservative, and 93-96.5% water. When the composition of the suspending agent is within this range, the compatibility of the formulation system is better, and the compatibility of acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer, microcrystalline cellulose, and sodium carboxymethyl cellulose can be more effectively improved. It can more effectively promote the curled polymer to become an unfolded structure, forming a microgel for space filling, promoting a rapid increase in viscosity, better suspending and stabilizing the abrasive particles, and more effectively promoting the stability of the surfactant system.

[0058] In one embodiment, the average particle size of the microcrystalline cellulose is 15 to 180 μm.

[0059] In one embodiment, the average particle size of the microcrystalline cellulose is 50 to 100 μm. The inventors of the present invention have found that, especially when the average particle size of the microcrystalline cellulose is 50 to 100 μm, the particle size of the microcrystalline cellulose is appropriate and aggregation does not occur, while maintaining a larger specific surface area, better stability, and the ability to better lock water in the 3D three-dimensional network.

[0060] In one embodiment, the weight average molecular weight of the sodium carboxymethyl cellulose is 250,000 to 395,000, and the degree of substitution is 0.7 to 0.9. When the weight average molecular weight and degree of substitution of the sodium carboxymethyl cellulose are within this range, the micelle morphology can be more effectively promoted to transform into a worm-like micelle, and negative charges can be better generated along the main chain of the polymer, so that the curled polymer is transformed into an unfolded structure, and the suspension thickening and stabilization are more effective.

[0061] In one embodiment, the preservative includes at least one of sodium benzoate, phenoxyethanol, p-hydroxyacetophenone, 1,2-hexanediol, ethylhexylglycerin, and 1,2-pentanediol.

[0062] The addition of the preservative can effectively prevent the growth of mold or bacteria, especially when sodium benzoate is used as the preservative. The pH of sodium benzoate in water is 8, which can promote the generation of negative charges in the polymer main chain, increase the repulsive force between charges, and further promote the curled polymer to become an unfolded structure.

[0063] In one embodiment, in the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose and sodium carboxymethyl cellulose to the mass of the polyacrylic acid polymer is (0.04-0.3):1. The inventors of the present invention have found that, especially when the microcrystalline cellulose, sodium carboxymethyl cellulose, and polyacrylic acid polymer satisfy this relationship, the compatibility is better, more hydrophobic groups can be exposed, and the microcrystalline cellulose, sodium carboxymethyl cellulose, and polyacrylic acid polymer combine and adsorb with each other, more effectively locking water molecules, and further improving the stability and suspension effect.

[0064] The present invention also provides an application of the suspension thickening composition in the preparation of cosmetics.

[0065] The present invention also provides a surfactant system comprising the above-mentioned suspension thickening composition.

[0066] In one embodiment, the mass percentage of the suspension thickening composition in the surfactant system is 0.5-7%.

[0067] In one embodiment, the present invention further comprises the following components in percentage by weight: 1-5% moisturizing agent, 0.01-0.1% chelating agent, 20-30% anionic surfactant, 5-15% amphoteric surfactant, 1-20% alkyl glycoside surfactant, 0.1-1% pH regulator, 0.3-0.5% phenoxyethanol, 0.01-1% sodium chloride, 0.2-0.5% sodium benzoate, 0.1-2% friction agent, and 30-72% water.

[0068] The suspension thickening composition of the present invention can form a more complex spatial network structure with mixed micelles of surfactants, effectively reducing the interfacial action of surfactants without affecting the foam quantity and morphology of the surfactant system.

[0069] In one embodiment, the abrasive is at least one of mannan scrub particles, sodium polyacrylate scrub particles, silicon dioxide scrub particles, sea salt scrub particles, bamboo charcoal scrub particles, moringa seed scrub particles, and jojoba scrub particles.

[0070] In one embodiment, the moisturizing agent includes at least one of glycerin, butylene glycol, methylpropanediol, dipropylene glycol, glycereth-26, sorbitol, betaine, trehalose, xylitol, and polyethylene glycol.

[0071] In one embodiment, the chelating agent includes at least one of disodium EDTA and tetrasodium diethylamine glutamate.

[0072] In one embodiment, the pH adjuster includes at least one of citric acid, sodium citrate, malic acid, lactic acid, arginine, sodium hydroxide, potassium hydroxide, tromethamine, aminomethyl propanol, tetrahydroxypropyl ethylenediamine, and triethanolamine.

[0073] In one embodiment, the anionic surfactant includes at least one of sodium C14-16 olefin sulfonate, sodium lauryl polyether sulfate, and sodium lauryl sulfate.

[0074] In one embodiment, the amphoteric surfactant includes at least one of cocamidopropyl betaine and lauryl hydroxysulfonyl betaine.

[0075] In one embodiment, the alkyl glycoside surfactant includes at least one of octyl / decyl glucoside, decyl glucoside, and coconut glucoside.

[0076] In one embodiment, the surfactant composition further comprises an excipient acceptable in the cosmetic field.

[0077] In one embodiment, the cosmetically acceptable excipients include but are not limited to at least one of a moisturizer, an emulsifier, an antioxidant, a penetration enhancer, a flavor, and a pigment.

[0078] In one embodiment, suitable emollients include, but are not limited to, at least one of isododecane, isohexadecane, caprylic / capric triglyceride, pentaerythrityl tetraisostearate, dimethicone, isononyl isononanoate, diisostearyl malate, phytosteryl macadamia oleate, squalane, hexyl laurate, castor oil, hydrogenated polyisobutene, octyldodecanol, shea butter, dicaprylyl carbonate, jojoba oil, lanolin, sweet almond oil, dicaprylyl adipate, and coconut oil-caprylate / caprate.

[0079] In one embodiment, suitable antioxidants include, but are not limited to, carotenoids, ascorbic acid and its derivatives, resveratrol, pentaerythritol tetrakis-di-tert-butylhydroxyhydrocinnamate, arbutin, tocopherol (vitamin E), sodium metabisulfite, and combinations thereof.

[0080] In one embodiment, suitable colorants include, but are not limited to, white, black, yellow, blue, green, pink, red, orange, purple, indigo, brown, and combinations thereof.

[0081] The present invention also provides an application of a surfactant system in the preparation of cosmetics.

[0082] In one embodiment, the cosmetic is in the form of shower gel, shampoo, or scrub.

[0083] The following examples are provided to facilitate understanding of the present invention. These examples are not provided to limit the scope of the claims.

[0084] Example 1

[0085] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0086] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0087] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.112:1.

[0088] Example 2

[0089] The difference between Example 2 and Example 1 is that the mass ratios of acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer and suspending agent are different.

[0090] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.6:3.

[0091] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0092] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.07:1.

[0093] Example 3

[0094] The difference between Example 3 and Example 1 is that the mass ratios of acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer and suspending agent are different.

[0095] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.4:3.6.

[0096] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0097] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.126:1.

[0098] Example 4

[0099] The difference between Example 4 and Example 1 is that the mass ratios of acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer and suspending agent are different.

[0100] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.7:2.1.

[0101] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0102] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.042:1.

[0103] Example 5

[0104] The difference between Example 5 and Example 1 is that the mass ratios of acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer and suspending agent are different.

[0105] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.3:4.8.

[0106] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0107] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.224:1.

[0108] Example 6

[0109] The difference between Example 6 and Example 1 is that the mass ratios of acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer and suspending agent are different.

[0110] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.4:4.

[0111] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0112] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.14:1.

[0113] Example 7

[0114] The difference between Example 7 and Example 1 is that the mass ratios of acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer and suspending agent are different.

[0115] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.7:2.

[0116] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0117] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.04:1.

[0118] Example 8

[0119] The difference between Example 8 and Example 1 is that the mass ratios of acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer and suspending agent are different.

[0120] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.224:4.8.

[0121] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0122] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.3:1.

[0123] Example 9

[0124] The difference between Example 9 and Example 1 is that the mass ratios of acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer and suspending agent are different.

[0125] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.2:6.

[0126] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0127] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.42:1.

[0128] Example 10

[0129] The difference between Example 10 and Example 1 is that the mass ratios of acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer and suspending agent are different.

[0130] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 1:1.

[0131] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0132] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.014:1.

[0133] Example 11

[0134] The difference between Example 11 and Example 1 is that the amounts of the raw materials in the suspending agent are different.

[0135] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0136] The suspending agent comprises the following components in percentage by mass: 2% glycerol, 0.8% microcrystalline cellulose-1, 0.5% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 96.2% water.

[0137] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.104:1.

[0138] Example 12

[0139] The difference between Example 12 and Example 1 is that the amounts of the raw materials in the suspending agent are different.

[0140] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0141] The suspending agent comprises the following components in percentage by mass: 5% glycerol, 0.4% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.3% sodium benzoate, and 93.5% water.

[0142] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.096:1.

[0143] Example 13

[0144] The difference between Example 13 and Example 1 is that the amounts of the raw materials in the suspending agent are different.

[0145] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0146] The suspending agent comprises the following components in percentage by mass: 1% glycerol, 0.9% microcrystalline cellulose-1, 0.1% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 98.5% water.

[0147] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.08:1.

[0148] Example 14

[0149] The difference between Example 14 and Example 1 is that the amounts of the raw materials in the suspending agent are different.

[0150] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0151] The suspending agent comprises the following components in percentage by mass: 6% glycerol, 0.3% microcrystalline cellulose-1, 1.5% sodium carboxymethyl cellulose-1, 0.1% sodium benzoate, and 92.1% water.

[0152] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.144:1.

[0153] Example 15

[0154] The difference between Example 15 and Example 1 is that Example 15 uses microcrystalline cellulose-2 instead of microcrystalline cellulose-1.

[0155] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0156] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-2, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0157] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-2 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.112:1.

[0158] Example 16

[0159] The difference between Example 16 and Example 1 is that Example 16 uses microcrystalline cellulose-3 instead of microcrystalline cellulose-1.

[0160] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0161] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-3, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0162] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-3 and sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.112:1.

[0163] Example 17

[0164] The difference between Example 17 and Example 1 is that Example 17 uses microcrystalline cellulose-4 instead of microcrystalline cellulose-1.

[0165] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0166] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-4, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0167] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-4 and sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate crosspolymer-1 is 0.112:1.

[0168] Example 18

[0169] The difference between Example 18 and Example 1 is that Example 18 uses sodium carboxymethyl cellulose-2 instead of sodium carboxymethyl cellulose-1.

[0170] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0171] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-2, 0.5% sodium benzoate, and 95.1% water.

[0172] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-2 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.112:1.

[0173] Example 19

[0174] The difference between Example 19 and Example 1 is that Example 19 uses sodium carboxymethyl cellulose-3 instead of sodium carboxymethyl cellulose-1.

[0175] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0176] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-3, 0.5% sodium benzoate, and 95.1% water.

[0177] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-3 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.112:1.

[0178] Example 20

[0179] The difference between Example 20 and Example 1 is that Example 20 uses sodium carboxymethyl cellulose-4 instead of sodium carboxymethyl cellulose-1.

[0180] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0181] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-4, 0.5% sodium benzoate, and 95.1% water.

[0182] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-4 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.112:1.

[0183] Example 21

[0184] The difference between Example 21 and Example 1 is that Example 21 uses acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-2 to replace acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1.

[0185] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-2 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-2 to the suspending agent is 0.5:4.

[0186] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0187] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-2 is 0.112:1.

[0188] Example 22

[0189] The difference between Example 22 and Example 1 is that Example 22 uses acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-3 to replace acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1.

[0190] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-3 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-3 to the suspending agent is 0.5:4.

[0191] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0192] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-3 is 0.112:1.

[0193] Example 23

[0194] The difference between Example 23 and Example 1 is that Example 23 uses phenoxyethanol to replace sodium benzoate.

[0195] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-3 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-3 to the suspending agent is 0.5:4.

[0196] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% phenoxyethanol, and 95.1% water.

[0197] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-3 is 0.112:1.

[0198] Example 24

[0199] A surfactant system comprises the following components in percentage by mass: 2% of a suspension thickening composition, 3% of butylene glycol, 1% of betaine, 0.05% of disodium EDTA, 25% of sodium C14-16 olefin sulfonate, 8% of cocamidopropyl betaine, 4% of decyl glucoside, 0.2% of citric acid, 0.4% of phenoxyethanol, 0.1% of sodium chloride, 0.3% of sodium benzoate, 1% of mannan scrub particles, and the balance of water.

[0200] The preparation method of the surfactant system comprises the following steps: uniformly stirring water and a suspension thickening composition, adding a humectant, a chelating agent, an anionic surfactant, an amphoteric surfactant, and an alkyl glycoside surfactant, heating the mixture to 80° C., uniformly stirring the mixture, cooling the mixture to 60° C., adding a pH regulator, uniformly stirring the mixture, cooling the mixture to 45° C., adding the remaining materials, and uniformly stirring the mixture to obtain the surfactant system.

[0201] Comparative Example 1

[0202] The difference between Comparative Example 1 and Example 1 is that Comparative Example 1 is a single acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1.

[0203] Comparative Example 2

[0204] The difference between Comparative Example 2 and Example 1 is that Comparative Example 2 is a single suspending agent, which includes the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0205] Comparative Example 3

[0206] Comparative Example 3 is different from Example 1 in that Comparative Example 3 does not contain microcrystalline cellulose.

[0207] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0208] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 1.4% sodium carboxymethylcellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0209] Comparative Example 4

[0210] The difference between Comparative Example 4 and Example 1 is that Comparative Example 3 does not contain sodium carboxymethyl cellulose.

[0211] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0212] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 1.4% microcrystalline cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0213] Comparative Example 5

[0214] The difference between Comparative Example 5 and Example 1 lies in the different mass ratios of acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer and suspending agent.

[0215] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 2:1.

[0216] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0217] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.007:1.

[0218] Comparative Example 6

[0219] The difference between Comparative Example 6 and Example 1 lies in the different mass ratios of acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer and suspending agent.

[0220] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.1:6.

[0221] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0222] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the acrylic acid (ester) / C10-30 alkyl acrylate cross-polymer-1 is 0.84:1.

[0223] Comparative Example 7

[0224] The difference between Comparative Example 7 and Example 1 is that the amounts of the raw materials in the suspending agent are different.

[0225] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0226] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.1% microcrystalline cellulose-1, 1.3% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0227] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the polyacrylic acid polymer is 0.112:1.

[0228] Comparative Example 8

[0229] The difference between Comparative Example 8 and Example 1 is that the amounts of the raw materials in the suspending agent are different.

[0230] A suspension thickening composition comprises acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 and a suspending agent; the mass ratio of the acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer-1 to the suspending agent is 0.5:4.

[0231] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 1.35% microcrystalline cellulose-1, 0.05% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0232] In the suspension thickening composition, the ratio of the total mass of the microcrystalline cellulose-1 and the sodium carboxymethyl cellulose-1 to the mass of the polyacrylic acid polymer is 0.112:1.

[0233] Comparative Example 9

[0234] The difference between Comparative Example 9 and Example 1 is that Comparative Example 9 uses xanthan gum to replace acrylic acid (esters) / C10-30 alkyl acrylate cross-polymer-1.

[0235] A suspension thickening composition comprises xanthan gum and a suspending agent; the mass ratio of the xanthan gum to the suspending agent is 0.5:4.

[0236] The suspending agent comprises the following components in percentage by mass: 3% glycerol, 0.6% microcrystalline cellulose-1, 0.8% sodium carboxymethyl cellulose-1, 0.5% sodium benzoate, and 95.1% water.

[0237] Test Case

[0238] The compositions of Examples 1 to 23 and Comparative Examples 1 to 9 were respectively prepared into corresponding surfactant systems according to the method of Example 24 for testing.

[0239] 1. The surfactant systems prepared in Examples 1 to 23 and Comparative Examples 1 to 9 were weighed into 8 25 g samples each using transparent PET bottles. The samples were placed under constant temperature conditions of -18°C, -8°C, 5°C, 25°C (room temperature), 40°C, 45°C, 50°C, and cycled (-8°C to 40°C, 2 days per cycle) for 90 days. After returning to room temperature, their stability was observed. The scoring test results are shown in the table below. The stability judgment criteria are as follows: after the test samples are returned to room temperature, if there is any particle sinking, precipitation and agglomeration (aggregation into jelly), and if the transparency does not change, the samples are considered normal; otherwise, they are considered abnormal.

[0240] Test the viscosity change rate: Test the viscosity before and after 90 days at 45°C (the viscosity before placement is η0, and the viscosity after placement is η1) and the viscosity change rate, viscosity change rate = (η1-η0) / η0 (test results are shown in Table 2).

[0241] 2. Foam volume and foam stability

[0242] Experimental instrument: The test was commissioned to the Application Technology Department of Nanjing Sinolion New Materials Co., Ltd. (SINOLION), using a simple rotary foam analyzer (non-standard).

[0243] Experimental basis: refer to the "Simple Rotational Foam Test Operating Procedure for Surfactants and Detergents" document number: HS-YY-AW-20231101, test five groups for each embodiment and comparative example, and take the average value.

[0244] Experimental steps:

[0245] 1: Accurately weigh 5g of the object to be tested;

[0246] 2: Dilute the sample with deionized water in a 500ml volumetric flask and make up to 500ml;

[0247] 3. Place the dilution to be tested in the volumetric flask in a 40°C water bath and keep warm for 20 minutes;

[0248] 4: Rinse the measuring cylinder of the simple rotating foam instrument twice with 50 ml of the diluent to be tested:

[0249] 5: Use a 500ml graduated cylinder to accurately measure 200ml of the dilution to be tested and put it into the graduated cylinder of the simple rotary foam instrument, and lock the graduated cylinder fastener;

[0250] 6: Set the rotating foam instrument to rotate forward at a speed of 20 r / min, and time it for 1 minute. Press the stop button to stop the simple rotating foam instrument and start timing.

[0251] 7: Read the total volume of foam and liquid on the upper layer and the volume of liquid on the lower layer of the simple rotating foam meter for 30 seconds and 5 minutes.

[0252] 8: Subtract the liquid volume value from the total volume value to get the rotational foam volume of the sample to be tested under 30s and 5min.

[0253] The foam volume in 30 seconds before storage was taken as the initial foam volume, and the foam volume in 30 seconds after storage at 45°C for 60 days was taken as the final foam volume. Foam change rate (foam stability) = [(final foam volume - initial foam volume) / initial foam volume] × 100%.

[0254] Table 1

[0255]

[0256]

[0257]

[0258] Table 2

[0259]

[0260]

[0261] As can be seen from Table 2, the suspension thickening composition of the present invention can effectively improve the suspension thickening effect and effectively improve stability. Comparison of Example 1 with Comparative Examples 1 to 4 shows that acrylic acid (ester) / C10-30 alkyl acrylate crosslinked polymer and sodium carboxymethyl cellulose have a significant synergistic effect in terms of suspension thickening stability. The lack of any one of them (when testing, the addition amount of Example and Comparative Example 1 is the same, i.e., the total amount is the same) will lead to a significant decrease in the effect.

[0262] By comparing Example 1 with Comparative Examples 5 to 6, it can be seen that by controlling the mass ratio of acrylic acid (esters) / C10-30 alkyl acrylate crosslinked polymer and suspending agent within the range of the present invention, the compatibility is better, the synergistic effect is more obvious, and the suspension thickening and stabilizing effect can be more significantly improved.

[0263] Comparing Example 1 with Comparative Examples 7 to 8, it can be seen that the present invention significantly improves the suspension thickening and stabilizing effect by controlling the mass percentages of the raw materials of the suspending agent to: 1 to 6% glycerol, 0.3 to 0.9% microcrystalline cellulose, 0.1 to 1.5% sodium carboxymethyl cellulose, 0.1 to 0.5% preservative, and 91.1 to 98.5% water.

[0264] By comparing Example 1 with Comparative Examples 9 to 10, it can be seen that the specific acrylic acid (ester) / C10-30 alkyl acrylate crosslinked polymer used in the present invention has a better effect than other thickening stabilizers in the present invention and can more significantly improve the suspension thickening stabilization effect.

[0265] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A suspension thickening composition, characterized in that It is composed of a polyacrylic acid polymer and a suspending agent; the mass ratio of the polyacrylic acid polymer to the suspending agent is (0.2-1): (1-6); The polyacrylic acid polymer is an acrylic acid (ester) / C10-30 alkanol acrylate cross-linked polymer; The suspending agent is composed of the following components in percentage by mass: 1-6% glycerol, 0.3-0.9% microcrystalline cellulose, 0.1-1.5% sodium carboxymethyl cellulose, 0.1-0.5% preservative and 91.1-98.5% water; The ratio of the total mass of the microcrystalline cellulose and sodium carboxymethyl cellulose to the mass of the polyacrylic acid polymer is (0.04-0.3):1; The acrylic acid (ester) / C10-30 alkyl acrylate cross-linked polymer is SC-800POLYMER; The average particle size of the microcrystalline cellulose is 50 to 100 μm; The weight average molecular weight of the sodium carboxymethyl cellulose is 250,000 to 395,000, and the degree of substitution is 0.7 to 0.9; The preservative is sodium benzoate.

2. The suspension thickening composition according to claim 1, wherein The mass ratio of the polyacrylic acid polymer to the suspending agent is (0.3-0.7): (2-5).

3. The suspension thickening composition according to claim 1, wherein The mass ratio of the polyacrylic acid polymer to the suspending agent is (0.4-0.6): (3-4).

4. The suspension thickening composition according to claim 1, wherein The suspending agent is composed of the following components in percentage by mass: 2-5% glycerol, 0.4-0.8% microcrystalline cellulose, 0.5-1% sodium carboxymethyl cellulose, 0.3-0.5% preservative and 93-96.5% water.

5. Use of the suspension thickening composition according to any one of claims 1 to 4 in the preparation of cosmetics.

6. A surfactant system, characterized in that The invention comprises the suspension thickening composition according to any one of claims 1 to 4.

7. The surfactant system according to claim 6, characterized in that The mass percentage of the suspension thickening composition in the surfactant system is 0.5-7%.

8. The surfactant system according to claim 6, characterized in that The invention also includes the following components in percentage by weight: 1-5% moisturizing agent, 0.01-0.1% chelating agent, 20-30% anionic surfactant, 5-15% amphoteric surfactant, 1-20% alkyl glycoside surfactant, 0.1-1% pH regulator, 0.3-0.5% phenoxyethanol, 0.01-1% sodium chloride, 0.2-0.5% sodium benzoate, 0.1-2% friction agent and 30-72% water.

9. The surfactant system according to claim 8, characterized in that The abrasive comprises at least one of mannan scrub particles, sodium polyacrylate scrub particles, silicon dioxide scrub particles, sea salt scrub particles, bamboo charcoal scrub particles, moringa seed scrub particles, and jojoba scrub particles.

10. The surfactant system according to claim 8, characterized in that The moisturizing agent includes at least one of glycerin, butylene glycol, methylpropanediol, dipropylene glycol, glyceryl polyether-26, sorbitol, betaine, trehalose, xylitol, and polyethylene glycol; and / or The chelating agent includes at least one of disodium EDTA and tetrasodium diethylamine glutamate; and / or The pH regulator includes at least one of citric acid, sodium citrate, malic acid, lactic acid, arginine, sodium hydroxide, potassium hydroxide, tromethamine, aminomethyl propanol, tetrahydroxypropyl ethylenediamine, and triethanolamine.

11. The surfactant system according to claim 8, characterized in that The anionic surfactant includes at least one of sodium C14-16 olefin sulfonate, sodium lauryl polyether sulfate, and sodium lauryl sulfate; and / or The amphoteric surfactant is cocamidopropyl betaine; and / or The alkyl glycoside surfactant includes at least one of octyl / decyl glucoside, decyl glucoside, and coconut glucoside.

12. Use of the surfactant system according to any one of claims 6 to 11 in the preparation of cosmetics.

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