54 results about "Fatty acid formation" patented technology

There is provided a grease composition, including: a base oil; a metal soap thickener formed of at least one metal selected from the group consisting of lithium, calcium, magnesium and aluminum and a fatty acid containing at least one selected from the group consisting of a hydroxyl group, a carboxyl group and a carboxylic acid metal salt group in each molecular structure; and nanoparticles formed of at least one selected from the group consisting of oxides, carbides and diamond materials.

The present invention relates to a method for manufacturing metal nanoparticles, more particularly, to a method for manufacturing metal nanoparticles, the method comprising: forming a mixture by dissociating a metal precursor in fatty acid; and adding a metallic salt of a metal selected from the group consisting of Sn, Mg and Fe as a metallic catalyst into the mixture and mixing the mixture and the metallic salt. According to the present invention, metal nanoparticles have a uniform particle size distribution and a high yield by performing in a non-aqueous environment without using any organic solvent, and may be environment-friendlily due to no use of a reducing agent.

A polyglycerol fatty acid ester formed by esterifying a polyglycerol and a fatty acid, wherein the polyglycerol has a hydroxyl value of 1200 or less and primary hydroxyl groups in an amount of 50% or more of the total hydroxyl groups, and an emulsified or solubilized composition, foodstuff, and cosmetics, each containing the polyglycerol fatty acid ester.

A method of preparing an aqueous dispersion of a fabric conditioning composition comprises mixing 7.5 to 60% by weight of a cationic fabric softening compound, the compound having one or more hydrocarbyl chains formed from parent fatty acyl compounds or fatty acids having an iodine value of from 0 to 20 with 0.01%-1.5% by weight of a nonionic surfactant viscosity modifier and up to 1.4% by weight of a fatty alcohol, the combination of (b) and (c) being no more than 1.5% by weight, based on the total weight of the composition, the aqueous dispersion being subjected to high-shear below the phase transition temperature of compound (a) for a time sufficient to provide a composition having a viscosity of from 10 to 250 mPa.s measured at 20s-1 using a Haake NV1 Rotoviscometer at 20° C.

The invention provides polybutylene terephthalate resin composition with excellent mechanical property for keeping toughness and improving liquidity (melt fluidity) simultaneously and a thin-wall molding. In detail, relative to 100 weight parts (A) of the polybutylene terephthalate resin, 0.05-5 weight parts of the glycerin fatty acid ester with an coordination of (B) 0.01-5 weight parts of talcum is formed by (C) glycerin and/or dehydrate condensation compound and fatty acid with over 12 carbon atoms, wherein, the glycerin fatty acid ester has a hydroxyl group value of over 200 measured by the method recorded in the paper.

The invention provides a modified aluminum pigment comprising, based on the total weight of the modified aluminum pigment, 60-70 wt% of flake aluminum powder, 3-5 wt% of a compound formed by nano-titanium dioxide and fatty acid, and 25-35 wt% of an organic solvent, wherein the weight ratio of nano-titanium dioxide to fatty acid is (0.5-5):100. The invention also provides a corresponding preparation method of the modified aluminum pigment and a coating containing the modified aluminum pigment. Compared with traditional aluminum pigments, the modified aluminum pigment has better metal sensationand better angle-dependent optical effect.

The invention provides a modified aluminum pigment. The modified aluminum pigment comprises the following components: 60wt%-70wt% of sheet aluminum powder, 25wt%-35wt% of an organic solvent and 3wt%-5wt% of a composition formed by graphene oxide and fatty acid. The invention correspondingly provides a preparation method of the modified aluminum pigment. Compared with traditional aluminum pigments, the modified aluminum pigment has excellent storage stability, sliver-dropping resistance and corrosion resistance.

The invention provides a preparation process of fat emulsion injection products and the fat emulsion injection products, which are characterized in that the preparation process comprises the following steps of: oil phase preparation; aqueous phase preparation; neogala preparation; high-pressure homogenization; oxygen-free filling; and sterilization to prepare the fat emulsion injection products, wherein in the aqueous phase preparation, an appropriate amount of water for injection, glycerol and sodium hydroxide are added into a preparation tank B, and the mixture is stirred and heated to the temperature of between 50 and 90 DEG C; the sodium hydroxide is used for regulating pH values and forming sodium aliphatate with fatty acid; and before the sterilization, the pH values of the products are regulated to between 7.0 and 12.0, and the products are subjected to vacuumization and nitrogenization to prepare an aqueous phase. The preparation process of the fat emulsion injection products can improve the stability of fat emulsion, and have the advantages of simple process and convenient operation; and the phenomena of hyperoxide generated due to oil oxidation or harmful substances such as aldehyde, ketone and the like which are generated due to the continuous decomposition of the hyperoxide occurs rarely under the condition that auxiliary materials such as antioxidant and the like are not added.

The invention relates to a grease fractionating method. The method comprises the following steps: adding a crystallization promoter to grease for fractionation, wherein the crystallization promoter is erythritol fatty acid ester; heating to make the grease fused; cooling for crystallizing to make the fused grease form a solid part and a liquid part; and separating the solid part and the liquid part, wherein the erythritol fatty acid ester is a monoester, a diester, a triester and a tetraester formed through using erythritol and C2-28 fatty acid or a mixture thereof. The invention also relates to an application of the erythritol fatty acid ester in the grease crystallizing fractionation.

The invention discloses function candidate gene for affecting the meat quality trait of a pig and a screening method of t function candidate gene. The function candidate geneisRXRG, GPI, CPT2 and/or GABARAPL1. The screening method comprises the following steps: (1), selecting longissimus muscles of two extreme pig breeds with large meat quality trait difference, extracting DNA, and independently creating databases; (2), performing whole genome DNA methylation sequencing on sample DNA databases by adoptingan MeDIP-Seq technology; (3), obtaining maps of whole genome DNA methylation levels of the two extreme pig breeds, and screeningdifferentialmethylationexpressed genes; (4), performing GO functional annotation and KEGG Pathway analysis on the differentialmethylationgenes, and screening out functional genes and regulatory pathways related to meat quality traits, such as fatty acid formation and decomposition; (5), performing DNA methylation and expression profileconjoint analysis through MeDIP-seq and RNA-seqtest results, and obtaining the function candidate gene of the meat quality trait of the pig. According to the method, the function candidate geneparticipatinginregulationof the meat quality trait of the pig is screened out, and a foundation is laid for the future deep research.

The invention relates to the field of animal feeds for livestock and poultry, and especially relates to a feed added with a protein-mulberry leaf additive for reducing cholesterol contents of livestock meat, poultry meat and eggs as well as a preparation method thereof. The feed added with the protein-mulberry leaf additive for reducing the cholesterol contents of the livestock meat, the poultry meat and the eggs comprises the following raw-material ingredients in parts by weight: 35-60 parts of protein-mulberry leaves, 15-20 parts of pine needle powder, 1.2-2.0 parts of dendranthema indicum, 2.0-2.7 parts of wormwood, 1.0-1.5 parts of eucommia ulmoides leaves, 1.0-1.5 parts of lotus leaves, 10-20 parts of rice bran, 10-20 parts of corn powder and 10-30 parts of fermentation broth of live bacteria. The protein-mulberry leaves, the dendranthema indicum, the wormwood, the pine needle powder, the eucommia ulmoides leaves, the lotus leaves and so on are mixed according to a certain ratio in the preparation method, and the mixture is then fermented; thus, the fermented materials are enabled to exert synergistic effects, and the feed is capable of improving qualities of the livestock meat, the poultry meat and the eggs. Moreover, the feed is capable of enhancing antioxidant capabilities of living bodies and slaughtered muscle tissues of the livestock and the poultry, so as to reduce oxidation products and prevent fatty acid formation in the meat; thus, the feed greatly reduces the low-density cholesterol contents in the livestock bodies and the poultry bodies.

The present invention relates to methods for coating at least one surface of a medical device for improving the hemocompatibility of said surface. Further, the invention relates to medical devices comprising surfaces, coated with a coating composition containing a nonionic ester formed from an acyclic C₃-C₆(OH)_3-6 polyol and from at least three C₁₂-C₂₆ fatty acids, and further includes at least one hydrophilic group.

A hydrodynamic bearing device being low in torque, low in power consumption, high in reliability and best suited for miniaturization and a spindle motor using the same. The hydrodynamic bearing device in accordance with the present invention, dynamic pressure generation grooves being provided on at least one of a shaft or a sleeve, and a lubricant being present in a clearance where the above-mentioned shaft and the above-mentioned sleeve are opposed to each other, is characterized in that the above-mentioned lubricant contains diesters obtained from a divalent alcohol having 4 to 8 carbon atoms and having no alkyl side chain at the beta position and one or more kinds of saturated monovalent fatty acids having 9 to 13 carbon atoms.

The present invention discloses a preparation method of an ester type anti-wear agent, relates to the preparation field of fatty acid esterification catalysts, and aims to solve the problems of incomplete reaction, low product purity, many byproducts and deep product color in the process of formation of monoesters from fatty acids. A solid superacid SO4<2-> / TiO2-Al2O3 / La<3 +> prepared by the ways of low temperature aging, rare-earth modification, active carrier loading and the like is used as a catalyst, and when the solid superacid SO4<2-> / TiO2-Al2O3 / La<3 +> is used for esterification of the fatty acids, high purity and high yield fatty acid esters can be obtained. The solid superacid SO4<2-> / TiO2-Al2O3 / La<3 +> has the advantages of being easy in separation after the reaction, reusable, non-pollution to equipment and environmental, and the like. The solid superacid as the catalyst is suitable for mass production of the fatty acid monoesters of different components and contents.

The invention discloses a method for separating and purifying linoleic acid from a grease raw material. The method comprises the following steps: performing saponification and acidification on greaseso as to obtain fatty acid, pretreating the obtained fatty acid by using a freeze crystallization method so as to effectively separate saturated fatty acid from unsaturated fatty acid, forming fatty acid precipitate from the *fatty acid, and finally separating oleic acid from linoleic acid, thereby obtaining the high-content linoleic acid. The method disclosed by the invention is simple in step and convenient to operate, and the prepared linoleic acid is high in purity and good in quality.

The invention relates to a fuel oil additive. The fuel oil additive includes C12-C18 isomeric saturated fatty acid as an emulsifier, a neutralizer used for forming salt together with the fatty acid, and an optionally selected diluent. The fuel oil additive can effectively dissolve a tiny amount of water in gasoline or a fuel tank, and has a better effect than routine fatty acids.

The purpose of the present invention is to provide a treatment agent for synthetic fibers, which is used during the production of synthetic fibers and has excellent handling properties and excellent traveling stability. A treatment agent for synthetic fibers according to the present invention contains (A) a glycerol ester compound which has a structure wherein glycerol and a straight chain fatty acid having 8-22 carbon atoms are ester-bonded and the ratio of straight chain fatty acids having 16-18 carbon atoms is 90% by weight or more in all straight chain fatty acids, and (B) a branched ester compound which has a structure wherein an alcohol and a fatty acid having 8-20 carbon atoms are ester-bonded and the alcohol and/or the fatty acid has a branched structure in the carbon skeleton. The weight ratio of the glycerol ester compound (A) to the branched ester compound (B), namely (A)/(B) is from 75/25 to 15/85.