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214 results about "Isostearic acid" patented technology

Isostearic acid is a fatty acid molecule with an 18-carbon atom chain backbone. It is an isomer of stearic acid, meaning that they both have a chemical formula of C18H36O2, but differ in the arrangement of their atoms.

Skin care oil containing peony oil and preparation method thereof

The invention belongs to the technical field of skin care oil medicine, in particular to skin care oil medicine containing peony oil and a preparation method thereof. The skin care oil medicine provided by the invention comprises the following components in parts by weight: main ingredients: peony seed oil, caprylic / capric triglyceride, cyclopentasiloxane and 1, 2 - butyl glycol 1-12, wherein the peony oil is peony seed oil or peony essence oil or the mixture of peony seed oil and peony essence oil; auxiliary ingredients: isostearic acid, butylated hydroxytoluene, avocado oil, simmondsia chinensis seed oil, meadowfoam seed oil and macadamia ternifolia seed oil; the skin care oil medicine containing peony oil prepared by the method provided by the invention can remarkably improve of the skin epidermis cell cycle function, promote the microcirculation of the blood capillary of the dermal skin effect, inhibit lipid peroxidation, improve metabolism, delay skin aging process, is provided with anti-wrinkle, moisturizing and whiting effect, people feels smooth and comfortable after the skin care oil medicine is used on the skin, and the skin care oil medicine containing peony oil is provided with better effect to chloasma, aging skin wrinkles, skin cutin hardening peeling and skin chap.
Owner:HEZE YAO & SHUN PEONY BIOTECH

Preparation method of anti-cracking zinc acrylate antifouling paint

The invention discloses a preparation method of an anti-cracking zinc acrylate antifouling paint. The preparation method comprises synthesis of a zinc acrylate small-molecular monomer, synthesis of a zinc acrylate polymer and preparation of zinc acrylate antifouling paint, wherein the zinc acrylate small-molecular monomer contains a first solvent, zinc oxide, a methacrylic acid monomer and monocarboxylic acid; the zinc acrylate polymer contains a second solvent, a zinc acrylate small-molecular monomer, a methacrylate monomer and an initiator; the zinc acrylate antifouling paint contains a zinc acrylate polymer solution, pigment filler, a third solvent, an antifouling agent and an auxiliary; the structural formula of the synthesized zinc acrylate polymer is shown in the specification; the long branch of isostearic acid in monocarboxylic acid has relatively good internal plasticization function so that the synthesized zinc acrylate polymer has relatively good flexibility; and the methacrylate monomer is of a aliphatic six-membered ring structure with a cyclohexyl structure, the damage of the antifouling paint caused by excessive internal stress can be avoided, and the anti-cracking performance of the antifouling paint is enhanced.
Owner:XIAMEN SUNRUI SHIP COATING

Method for separating and extracting isostearic acid from monomer acid

The present invention discloses a method for separating and extracting isostearic acid from monomer acid. The present invention relates to a method for separating and extracting isostearic acid, in particular to a novel method for separating and extracting isostearic acid from monomer acid. The present invention provides a method for separating and extracting isostearic acid from monomer acid, which is suitable for use in commercial production. The method is characterized in: esterify the byproduct (monomer acid) obtain in production of dimer acid through bleaching earth catalytication process under medium pressure without catalyst to obtain monomer acid ester, treat by catalytic hydrogenation under medium pressure, and filter to obtain hydrogenised monomer acid ester; envelope with carbamide, filter, separate, and wash with water to obtain crude product of isostearic acid ester; perform molecular distillation to obtain refined isostearic acid ester, and then perform hydrolysis to obtain isostearic acid. Compared to the separation and extraction technique in the prior art, the present invention has the following advantages: the acidity and viscosity are low during hydrogenisation, and therefore the service life of catalyst is long, no nickel soap will be formed, and the corrosion to equipment is reduced; the product can be enveloped and separated by carbamide more easily; the distillation can be performed at a lower temperature; the iodine value of final product is low, the color is light, and the purity is high.
Owner:YIHAI TIANCHENG LIANYUNGANG CHEM INDSCO

Method for preparing isostearic acid

The invention relates to a method for preparing isostearic acid. The technical scheme is that the method comprises the following steps of: (1) producing dimer acid by using vegetable oil acid by a carclazyte catalysis method to obtain a byproduct, namely monomer acid; (2) controlling the temperature to be 90 to 98 DEG C and performing atmospheric esterification on the monomer acid and lower alcohol to obtain monomer acid ester by taking toluenesulfonic acid as a catalyst; (3) performing catalytic hydrogenation on the monomer acid ester to obtain aliphatic ester with a low iodine value; (4) sequentially saponifying and acidifying the aliphatic ester to obtain a mixture of stearic acid and isostearic acid; and (5) dissolving the mixture of the stearic acid and the isostearic acid by using No.6 solvent oil, reducing the temperature to -2 to 2 DEG C and performing cold separation, filtering, distilling filtrate under reduced pressure, and collecting fractions of the isostearic acid to obtain a finished product. Compared with the prior art, the method has the advantages that: the process is simple, equipment investment is low, and the safe operation is also ensured; an obtained product has high purity; and an acid value of the finished product is 180 to 188 mgKOH/g, and an iodine value is less than 8g/100g.
Owner:GUANGRAO HUAYU CHEM
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