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101 results about "Pentylene Glycol" patented technology

Pentylene Glycol is synthetic humectant used in cosmetics and beauty products that is also secondarily used as a solvent and preservative. It is both water and oil-soluble and can have moisture-binding and antimicrobial properties (Source).

Hydrolysis-resistant liquid phosphite ester as well as preparation method and application thereof

The invention discloses hydrolysis-resistant liquid phosphite ester and a preparation method and application thereof.The hydrolysis-resistant liquid phosphite ester is prepared by the steps that 2, 2, 4-trimethyl-1, 3-pentanediol and phosphorus trichloride or phosphite triester serve as raw materials, a cyclization reaction is conducted firstly, and then the hydrolysis-resistant liquid phosphite ester is obtained; and then carrying out nucleophilic substitution on Cl or aryl and alkyl on the cyclized intermediate by using higher saturated monohydric alcohol with more than C8, wherein the molecular structure is as shown in formula I in the specification. The liquid phosphite ester is novel liquid phosphite ester, the main body of the liquid phosphite ester is of a six-membered ring structure, the basic structure of the phosphite ester is reserved to the maximum extent, and the anti-oxidation effect of the phosphite ester is guaranteed; hydrophobic aliphatic chain structures on phosphorus atoms and branched chains of the phosphorus atoms prevent water molecules from approaching P-O bonds, so that the phosphorus atoms and the branched chains are prevented from being attacked by the water molecules, and the hydrolysis resistance is improved under the conditions that any additional amine hydrolysis-resistant agent is not used and any steric hindrance group is not introduced; good practical value, economic value and market prospect are realized.
Owner:JIANGSU EVERGREEN NEW MATERIAL TECH

Repair composition based on mussel mucin and application of repair composition in skin barrier repair

The invention relates to the technical field of repair compositions, and discloses a repair composition based on mussel mucin and application of the repair composition in skin barrier repair. The invention discloses a mussel mucoprotein-zinc composite microcapsule repair agent, which is prepared from the following components in parts by weight: mussel mucoprotein-zinc composite microcapsules, modified carboxymethyl chitosan, isolactone palmitate, a pH response type ceramide slow release system, dimeticone, cetostearyl alcohol, a calcium ion activating agent, an auxiliary repair factor, beheneth-25, caprylic / capric triglyceride, glyceryl monostearate, glyceryl distearate, pentanediol and citric acid. The preparation method comprises the following steps: adding ethanol, phenoxyethanol / ethylhexylglycerin, trehalose, beta-glucan and purified water; according to the whole technical scheme, through functional complementation and process optimization of all the components, synergistic interaction is achieved, the transpedermis water loss amount can be rapidly reduced, the water content of the skin cuticle is increased, the damaged skin barrier structure can be repaired from the source, and the resistance and stability of the skin are remarkably improved.
Owner:HEFEI SHELL PARTY INNOVATIONS TECH CO LTD

Skin moistening oil containing water-soluble active matters and preparation method of skin moistening oil

PendingCN121971321AmildImprove the pleasure of useCosmetic preparationsToilet preparationsPolymer scienceActive agent
The invention relates to the field of cosmetics, in particular to skin moistening oil containing a water-soluble active matter and a preparation method of the skin moistening oil. The skin moistening oil of the water-soluble active matter is prepared from the following raw materials in parts by mass: 0.1-1 part of a phase A, 3-15 parts of a phase B and 80-100 parts of a phase C, wherein the phase A is a water-soluble component, and the water-soluble component comprises one or more of deionized water, VC ethyl ether and nicotinamide; the phase B is a solvent, and the solvent comprises one or more of ethyoxyl diethylene glycol, 1, 2-pentanediol, isopentanediol and isostearic acid; the phase C is skin moistening oil, and the skin moistening oil comprises caprylic / capric triglyceride. The skin moistening oil product provided by the invention has the advantages of clear and transparent appearance, good fluidity, excellent stability, no need of adding a surfactant or a solubilizer, mildness, no irritation, simple process, controllable cost, good practical value and good application prospect.
Owner:SHANGHAI ZHONGYI DAILY CHEM CO LTD +1

Super-branched high-performance environmentally friendly phthalate plasticizer, PVC product and preparation method and application thereof

The application discloses a kind of super branched chain high-performance environmentally friendly phthalate plasticizers, PVC product and its preparation method and application, belong to material technical field.The super branched chain high-performance environmentally friendly phthalate plasticizers are esterified and polycondensed by polybasic acid and mixed dihydric alcohol in the presence of catalyst, and are obtained by monohydric alcohol end-capping;Polybasic acid includes trimellitic anhydride, mixed dihydric alcohol includes at least two of methyl propylene glycol, neopentyl glycol, ethylene glycol and propylene glycol.The super branched chain high-performance environmentally friendly phthalate plasticizers are well compatible with PVC, good color, with good viscosity, density, acid value and other performance indicators, which is used in PVC product, can make PVC product not only has superior aging resistance and electrical insulation performance, but also has outstanding oil extraction resistance, migration resistance, volatile resistance and thermal stability performance.
Owner:GUANGDONG KEYUNCHENG NEW MATERIAL CO LTD

A uv haptics ink and method of making the same

ActiveCN117402520BInksPolymer scienceDipropylene glycol diacrylate
The application belongs to the technical field of ink, and discloses a UV touch ink and a preparation method thereof.The UV touch ink comprises a UV modified acrylate, an acetylacetate ethyl ester-containing acrylic resin, an active monomer, an organic wax, a photoinitiator and a solvent; the active monomer is selected from at least one of dipropylene glycol diacrylate, diethylene glycol phthalate diacrylate, neopentyl glycol diacrylate and hexanediol diacrylate. The UV modified acrylate, the acetylacetate ethyl ester-containing acrylic resin, the active monomer and the organic wax are used as main components, and the selection of the active monomer enables the prepared UV touch ink to have excellent skin feeling and velvet feeling effects, and excellent adhesion, light resistance, weather resistance, alcohol resistance and solvent resistance. Meanwhile, the UV touch ink can simplify the curing process, and only needs to be dried by UV after printing, has high curing efficiency, and does not need to be dried by hot air and UV.
Owner:ZHUHAI S E Z CHENGCHENG PRINTING

One-component polyurethane primer and adhesive tape using the same

The application provides a single-component polyurethane primer, and raw materials for preparing the single-component polyurethane primer include: alcohol materials, the alcohol materials including polyester polyols, the polyester polyols including at least one of polyethylene glycol butanediol adipate polyol, polyethylene glycol diethylene glycol adipate polyol and poly-3-methyl-1,5-pentanediol adipate polyol; isocyanate materials, the isocyanate materials including diisocyanate and polyisocyanate, the diisocyanate and / or the polyisocyanate including an aromatic ring in a molecular structure, and the diisocyanate:polyisocyanate = 6-12:1-5 in terms of mass ratio; additives, the additives including a catalyst; a solvent; and the alcohol materials:isocyanate materials = 1-2:0.7-1.7 in terms of mass ratio. The single-component polyurethane primer can form a primer layer with large surface tension, solvent resistance and corrosion resistance to solvents in a glue layer, and can improve the surface tension of a substrate.
Owner:DONGGUAN AOZON ELECTRONICS MATERIAL +2

ink

PendingUS20260071085A1InksPolymer scienceEthyleneglycol monobutyl ether
An ink includes: a pigment, a pigment dispersion resin, 7 mass % or more and 20 mass % or less of polyethylene glycol having a molecular weight of 200 or more and 600 or less, 1 mass % or more and 15 mass % or less of 3-methyl-1,5-pentanediol, 1 mass % or more and 10 mass % or less of triethylene glycol monobutyl ether, and water.
Owner:KYOCERA DOCUMENT SOLUTIONS INC

Skin cosmetics

This skin cosmetic offers superior comfort upon application, effectively removes pore impurities when wiped off, and maintains a pore-minimizing effect even after wearing a mask. [Solution] A phenoxyethanol-free skin cosmetic is provided, characterized by containing (A) 1 to 20% by mass of 1,3-propanediol, (B) 0.5 to 4% by mass of 1,2-pentanediol, (C) 0.01 to 0.5% by mass of glycerin mono-2-ethylhexyl ether, and (D) 0.0001 to 0.1% by mass of citrus extract on a solid content basis.
Owner:NOF CORP

Aqueous pigment dispersion

A pigment water dispersion, including pigment-containing polyester resin particles. The polyester resin contains a constitutional unit derived from an alcohol component and a constitutional unit derived from a carboxylic acid component, the alcohol component contains 3-methyl-1,5-pentanediol, and an average particle size of the pigment-containing resin particles is not less than 60 nm and not more than 350 nm.
Owner:KAO CORP

Preservative-free cosmetic composition for barrier repair as well as preparation method and application of preservative-free cosmetic composition

The invention relates to the technical field of cosmetics, in particular to a preservative-free cosmetic composition for barrier repair as well as a preparation method and application of the preservative-free cosmetic composition. The invention relates to a preservative-free cosmetic composition for barrier repair, which comprises the following components in percentage by weight: 4.0-6.0% of 1, 2-pentanediol; 0.5% to 1.0% of 1, 2-hexanediol; 0.1% to 0.5% of cerayl; 0.5%-1.0% of phytosterol; 4.0%-6.0% of stearic acid; 4.0%-7.0% of hydrogenated lecithin; 0 to 0.3 percent of caryophylline; 0-0.2% of a eucommia ulmoides bark extract; and the balance of water. The composition of 1, 2-pentanediol and 1, 2-hexanediol is adopted to replace a traditional chemical preservative, and on the premise that the preservative effect is achieved, the possibility of causing skin irritation and allergy risks is reduced; ceramide and phytosterol can participate in construction of a skin barrier and supplement and repair a lipid structure of the skin barrier; stearic acid and hydrogenated lecithin form a stable emulsification basis, so that the two long-term contradictory requirements of no chemical preservative stimulation and effective barrier repair are met, and the unification of product safety and efficacy is realized.
Owner:上海岱莱美化妆品有限公司

Skin cosmetics

This skin cosmetic offers superior comfort upon application, effectively removes pore impurities when wiped off, and keeps pores less noticeable even after wearing a mask. [Solution] A phenoxyethanol-free skin cosmetic is provided, characterized by containing (A) 1 to 20% by mass of 1,3-propanediol, (B) 0.5 to 4% by mass of 1,2-pentanediol, (C) 0.01 to 0.5% by mass of glycerin mono-2-ethylhexyl ether, and (D) 0.0001 to 0.1% by mass of citrus extract on a solid content basis.
Owner:NOF CORP

Method for reducing content of 1, 2-pentanediol in ethylene glycol

A process for removing 1, 2-pentanediol from a mixture rich in ethylene glycol, said process comprising an extractive distillation in which an entrainer having a Hansen solubility parameter [delta] H of between 5 and 15 is used, and said entrainer has a boiling point at atmospheric pressure of at least 200 DEG C.
Owner:AVANTIUM KNOWLEDGE CENT BV

Extract of Halopteris scoparia, and its use

Extract of Halopteris scoparia comprising, for 100% of its mass, 80% by mass to 95% by mass of water, 4.5% by mass to 15% by mass of an organic solvent selected from the elements of the group consisting of 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,3-butanediol, 1,2-butanediol, 1,2-pentanediol, 2-methyl-2,4-pentanediol, 1,6-hexanediol, 1,8-octanediol and a mixture of these compounds, and 0.5% by mass to 5% by mass of dry matter, and its use as cosmetic and pharmaceutical active ingredients.
Owner:SOC DEXPLOITATION DE PROD POUR LES IND CHEM SEPPIC

Glucosylrutin-vitriol composition containing supramolecular solvent and preparation and application of glucosylrutin-vitriol composition

The invention relates to the technical field of cosmetics or skin external preparations, in particular to a glucosylrutin-vitriol composition containing a supramolecular solvent and preparation and application thereof.The composition is prepared from, by mass, 25%-40% of the supramolecular solvent, 8%-10% of vitriol, 0.01%-0.5% of glucosylrutin, 0.1%-5% of an auxiliary additive, 0.01%-0.05% of an antioxidant, 0.4%-2% of 1, 2-pentanediol, 0.1%-0.5% of 1, 2-pentanediol, 0.1%-0.5% of a stabilizer and the balance water. 0.4-2% of 1, 2-hexanediol and the balance of deionized water; the supramolecular solvent comprises a hydrogen bond donor, a hydrogen bond acceptor and a functional cosolvent, the functional cosolvent comprises a deep eutectic solvent and a bio-based solvent, and the total addition amount of the functional cosolvent is 10-15% of the total mass of the hydrogen bond donor and the hydrogen bond acceptor. By optimizing component selection and matching process design, the composition has the advantages that the skin permeability is obviously improved, and the anti-wrinkle, firming and skin repairing effects are realized.
Owner:GUANGZHOU PINHE COSMETICS CO LTD +1

Silicone oil-free bidirectional target shampoo and formula design method

PendingCN121943700AAchieve supplenessAchieve nourishmentCosmetic preparationsHair cosmeticsGlycerolSilicone oil
The invention relates to the technical field of daily chemicals, in particular to silicone-oil-free bidirectional target shampoo and a formula design method, and the silicone-oil-free bidirectional target shampoo comprises a component A, a component B, a component C and a component D. In the formula design method of the patent, the silicone oil-free bidirectional target softener (component C) contains panthenol, glycerol, guar hydroxypropyltrimethylammonium chloride, olive oil PEG-7 esters, 1, 2-pentanediol, polyquaternium-67 and other components, so that the effects of softening and nourishing hair are achieved, and the problems of heavy feeling and difficulty in cleaning caused by a traditional silicone oil-containing product are avoided; according to the formula, the silicone oil component is removed, and the multi-effect synergistic effect of moisturizing, repairing and mild cleaning is combined, so that the problems that hair is heavy, sticky and greasy and the cleaning difficulty is increased due to silicone oil residues in existing shampoo are effectively solved, the use comfort is improved, and the fluffy feeling and softness of the washed hair are improved.
Owner:GUOKE (GUANGZHOU) COSMETICS RESEARCH CO LTD

Sandal insole, preparation method thereof and sandal

The invention discloses a sandal insole, a preparation method thereof and a sandal, and relates to the field of shoe materials. The sandal insole comprises a PU insole base material, and the PU insole base material is formed by reacting a material A and a material B; the material A comprises bifunctional polytetrahydrofuran ether, micromolecular straight-chain diol, branched-chain diol, a chemical foaming agent, a catalyst and polyether silicone oil; the branched chain diol is selected from at least one of 2-butyl-2-ethyl-1, 3-propylene glycol and 2, 2, 4-trimethyl-1, 3-pentanediol, and the branched chain diol is selected from at least one of 2-butyl-2-ethyl-1, 3-propylene glycol and 2, 2, 4-trimethyl-1, 3-pentanediol; the material B comprises an isocyanate component A and an isocyanate component B, the isocyanate component A is obtained by reaction of diphenylmethane diisocyanate, polypropylene oxide glycol, polypropylene oxide triol and carbodiimide modified diphenylmethane diisocyanate according to a specific ratio, and the isocyanate component B is isophorone diisocyanate. The sandal insole has the advantages of excellent seawater resistance, low compression set rate, good mechanical properties and long service life.
Owner:FOSHAN BAOMIN SHOES CO LTD

Bio-based efficient film-forming carrier for dissolving and stripping open and closed acnes and preparation method of bio-based efficient film-forming carrier

PendingCN121868149Acausing secondary damageCosmetic preparationsToilet preparationsMaterials scienceTromethamine
The invention provides a bio-based efficient film-forming carrier for dissolving and stripping open and closed acnes, which is prepared from the following raw materials in percentage by weight: at least a phase A, a phase B and a phase C. The phase A at least comprises 0.1-1% of microcrystalline cellulose, 0.15-1% of cellulose gum, 3-8% of aureobasidium pullulans polysaccharide, 10-20% of alkaline blackhead exporting liquid, 2-5% of tromethamine and 30-80.25% of water; the phase B at least comprises 1-10% of caprylic / capric triglyceride and 0.5-5% of lauryl glucoside, and the phase C at least comprises 1-15% of cassava starch and 2-5% of 1, 2-pentanediol; the preparation method has the advantages that the reproducible bacterial nano cellulose is used as microcrystalline cellulose, so that a film forming system for dissolving and stripping open and closed acnes is milder and more effective, secondary injury to skin is avoided, and the film forming system is biodegradable, green and sustainable; the invention also provides a preparation method of the bio-based efficient film-forming carrier.
Owner:ZHEJIANG MEICUISHI BIOTECHNOLOGY CO LTD

Inkjet ink

An inkjet ink includes: a pigment, 3-methyl-1,5-pentanediol, triethylene glycol monobutyl ether, trimethylolpropane; a pigment dispersion resin, and water.
Owner:KYOCERA DOCUMENT SOLUTIONS INC

Ethanol-free emulsion comprising two alkanediols, a surfactant, a fragrance, and a large quantity of water; process for perfuming this emulsion

Title: ETHANOL-FREE EMULSION COMPRISING TWO ALKANEDIOLS, A SURFACTANT, A PERFUME, AND A LARGE QUANTITY OF WATER; METHOD FOR PERFUMERIZING THIS EMULSION The present invention relates to a composition with little or no C1-C5 alkanool, particularly ethanol, in the form of a (micro)emulsion, perfuming and comprising at least two different C3-C5 alkaniols: i) pentylene glycol and ii) propylene glycol, iii) at least one surfactant, iv) at least one oil, v) at least one perfumer, and vi) at least 30% by weight of water relative to the total weight of said composition, it being understood that the mass ratio i) / ii) is less than 1. The present invention also relates to a method for perfuming human keratinous materials or clothing, which consists of applying to said keratinous materials or said clothing a perfumer composition as defined above. Figure for the abstract: None
Owner:LOREAL SA

Skin cosmetics

This skin cosmetic provides a pleasant feel upon application, leaves the skin feeling plump after application, and maintains a smooth and plump skin condition even after wearing a mask. [Solution] A skin cosmetic is provided that is free of dihydric alcohols having 6 or more carbon atoms and phenoxyethanol, characterized by containing (A) 1 to 20% by mass of 1,3-propanediol, (B) 0.5 to 4% by mass of 1,2-pentanediol, (C) 0.01 to 0.5% by mass of glycerin mono-2-ethylhexyl ether, and (D) 0.00001 to 0.001% by mass of ceramide.
Owner:NOF CORP

Silicone-oil-free bidirectional target softening agent based on shampoo and preparation method

The invention relates to the technical field of cosmetic chemistry, in particular to a silicone-oil-free bidirectional target softening agent based on shampoo and a preparation method of the silicone-oil-free bidirectional target softening agent. 1-6% of panthenol; 1 to 5% of olive oil PEG-7 esters; 2-6% of glycerin; 1 to 3% of guar gum hydroxypropyl trimethyl ammonium chloride; 1.4 to 1.6 percent of 1, 2-pentanediol; 0.8% to 2% of polyquaternium-67; 0.6 to 1.3 percent of citric acid; 0.4 to 0.6 percent of ethylhexylglycerin; 0.3 to 1% of PPG-10 methyl glucose ether; 0.065% to 0.08% of hydrolyzed keratin; 0.008% to 0.012% of butanediol; and 0.0028 to 0.0036 percent of phenoxyethanol. According to the silicone-oil-free bidirectional target softening agent based on the shampoo and the preparation method, the proportion of the cationic polymer to the natural grease is dynamically adjusted according to parameters such as the hair quality damage degree, the scalp pH value and the charge density, personalized repair is achieved, excessive adsorption or insufficient cleaning power is avoided, and the silicone-oil-free bidirectional target softening agent based on the shampoo is obtained by adopting a microcapsule wrapping technology and combining environment humidity and temperature changes. The release rate of moisturizing factors (such as glycerol and panthenol) is controlled, and the lasting moisturizing capacity of hair in a dry environment is improved.
Owner:GUOKE (GUANGZHOU) COSMETICS RESEARCH CO LTD

Water-based ink for inkjet recording.

This invention provides an aqueous inkjet recording ink that offers high image density on plain paper, excellent curl resistance, good redispersibility, and scratch resistance. [Solution] The water-based inkjet recording ink according to this embodiment contains a pigment, a pigment-coated resin, a water-soluble organic solvent, polyethylene glycol with a molecular weight of 400 in an amount of 10% to 20% by mass, 3% to 7% by mass of 3-methyl-1,5-pentanediol, 0.5% to 5% by mass of 2-ethyl-1,3-hexanediol, and water.
Owner:KYOCERA DOCUMENT SOLUTIONS INC

An environmentally friendly oil layer cleaning agent, its synthesis method and application

PendingCN122326193AMeth-Biochemical engineering
This invention belongs to the field of cleaning agent technology, specifically relating to an environmentally friendly oil layer cleaning agent, its synthesis method, and its application. The environmentally friendly oil layer cleaning agent, by weight percentage, is composed of the following raw materials: sodium amphiphilic sulfonate 0.2-0.3%; calcium lignin sulfonate 0.1-0.2%; dodecylamine polyoxyethylene ether (AC-1210) 0.1-0.2%; 2-methyl-2,4-pentanediol 3-5%; the balance being water; wherein the structural formula of the sodium amphiphilic sulfonate is as follows: The cleaning agent of this invention has the advantages of high oil washing efficiency, low preparation cost, and easy industrialization.
Owner:VICTORY OIL TIAN HUA BIN CHEM CO LTD

Composition for Anti-graying hair and method to prepare thereof

The present disclosure discloses a composition for anti-graying hair comprising Aloe barbadensis Leaf Extract, Camellia sinensis leaf extract, Rosmarinus officinalis Leaf Oil, Hamamelis virginiana (Witch Hazel), Neopicrorhiza scrophulariiflora root extract, Tetrasodium ethylenediaminetetraacetic acid (EDTA), Acrylates / C 10-30 Alkyl Acrylate Crosspolymer, Panthenol, Polyalkylene Glycol Mono Butyl Ether, Ethylhexylglycerin, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate, Propylene Glycol, Biotin, Hyaluronic Acid, Saccharide Isomerate, Alpha Glucosyl Hesperidin, Dimethyl Isosorbide, Mandarin peel paste, N-Acetyl L-Tyrosine, Pentylene Glycol, Gluconolactone, Propanediol, and water is added to the composition until a desired volume is achieved. The method for preparing the composition for anti-gray hair is also provided.
Owner:ANVEYA LIVING PTE LTD

Composition containing 4-butylresorcinol and preparation method thereof

The invention discloses a composition containing 4-butylresorcinol as well as a preparation method and application of the composition, and belongs to the technical field of biological fermentation and cosmetic raw materials. The composition is prepared from sodium surfactin, sodium stearoyl glutamate, 4-butylresorcinol, polyglycerol-4 oleate, butanediol, isoprene glycol and water, wherein the composition is prepared from sodium surfactin, sodium stearoyl glutamate, 4-butylresorcinol, polyglycerol-4 oleate; wherein the bacillus subtilis lipopeptide sodium is prepared by fermenting bacillus subtilis H01 and has excellent surface activity, emulsifying property and antibacterial activity. The composition realizes efficient whitening by synergistically inhibiting skin tyrosinase activity and reducing melanin content, is good in component compatibility and high in stability, and can be widely applied to preparation of whitening and skin care products.
Owner:有生之颜(深圳)生物科技有限公司

A method for preparing monohydric alcohol by catalytic hydrogenation of a bio-based small molecule dihydric alcohol

ActiveCN119874484BPtru catalystSolid acid
This invention discloses a method for the catalytic hydrogenation of bio-based small molecule diols to prepare monohydric alcohols. The method includes the following steps: placing an aqueous solution of a bio-based small molecule diol in a high-pressure reactor, adding an activated carbon-supported metal catalyst and a solid or liquid acid, then introducing hydrogen gas at a certain pressure, and stirring the reaction at a certain temperature for a period of time to obtain the monohydric alcohol; the small molecule diol is one of ethylene glycol, 1,2-propanediol, 1,4-butanediol, 1,2-pentanediol, 1,5-pentanediol, and 1,2-hexanediol; the activated carbon raw material is widely available, easy to prepare, and recyclable. The catalyst preparation process is simple, reusable, inexpensive, has high catalytic activity, and the reaction conditions are relatively mild, making it easy to promote.
Owner:GUANGZHOU INST OF ENERGY CONVERSION CHINESE ACAD OF SCI

Preparation method of anti-wrinkle essence

The invention provides a preparation method of an anti-wrinkle essence, which is used for preparing the anti-wrinkle essence comprising polydeoxyribonucleotide and human collagen which are used as anti-wrinkle agents, ribonucleic acid which is used as a neurotransmitter inhibitor, and an antioxidant, a humectant, a thickening agent, a diluent, a pH regulator and a preservative which are added in cosmetics in an acceptable manner. Comprising the following steps: putting a diluent into a preparation pot, and scattering a thickening agent carbomer; the preparation method comprises the following steps: pre-dispersing a humectant sodium hyaluronate, glycerol, butanediol and sclerotium gum serving as a thickener, adding the pre-dispersed humectant sodium hyaluronate, glycerol and butanediol into a preparation pot, stirring and heating, adding pentanediol serving as the humectant and an antioxidant, continuously stirring until the materials are uniform, and cooling for the first time; adding a pH regulator into the preparation pot subjected to primary cooling to regulate the pH value, carrying out secondary cooling, adding a preservative, a neurotransmitter inhibitor, an anti-wrinkle agent and other materials serving as a thickening agent and a humectant, continuously stirring until the materials are uniform, standing, and filtering by using a screen, so as to obtain the product.
Owner:上海乐宝日化股份有限公司

A process for the preparation of 1,2-pentanediol

PendingCN122502246Aeasy transferAdjustable electron cloud densityPtru catalystFuraldehyde
The application provides a preparation method of 1,2-pentanediol and belongs to the technical field of fine chemical synthesis. The 1,2-pentanediol is prepared by the following steps: furaldehyde, a solvent and a catalyst are loaded into a reaction kettle, nitrogen in the kettle is replaced by nitrogen gas, hydrogen in the kettle is replaced by hydrogen gas after the nitrogen replacement, and then the reaction is carried out by heating and hydrogen charging to obtain the 1,2-pentanediol; the catalyst uses hydrotalcite as a carrier, active components Ni and Cu are dispersed in the carrier, the loading amount of the active components is 5wt%-20wt%, the mass ratio of the Ni and the Cu is 1:2-3:1, and the specific surface area of the hydrotalcite carrier is 10-20m 2 / g. The method provided by the application is simple in process, high in yield, small in smell of prepared 1,2-pentanediol and suitable for daily chemical products.
Owner:HAIKE GRP RES INST OF INNOVATION & TECH

A polyurethane resin, its preparation and use

PendingCN122444965APolymer sciencePolyol
The application relates to a polyurethane resin and a preparation method and application thereof, and belongs to the technical field of polyurethane resins. The preparation raw materials of the polyurethane resin include the following components in parts by weight: polyester polyol 3-21 parts, carbon dioxide-based polyol 2-20 parts, antioxidant A 0.001-0.01 part, phosphoric acid 0.001-0.02 part, chain extender 0.5-4 parts, isocyanate 2-8 parts, solvent 68-72 parts and terminating agent 0.01-0.05 part; and the preparation raw materials of the polyester polyol include isosorbide, 3-methyl-1,5-pentanediol, terephthalic acid and adipic acid. The polyurethane resin is prepared through a specific composition of polyester polyol and a suitable prepolymerization process, and synthetic leather is prepared through a large immersion process, so that the final product, polyurethane handle leather, has excellent dry and crisp hand feeling and high scratch resistance.
Owner:XUCHUAN CHEM SUZHOU