288 results about "Cinnamates" patented technology

The invention relates to new polymerisable mesogenic or liquid crystalline compounds comprising a laterally substituted cinnamate group, to polymerisable mesogenic or liquid crystalline mixtures and anisotropic polymers prepared thereof, and to the use of the new compounds and the mixtures and polymers prepared thereof in optical and electrooptical devices, adhesives, synthetic resins with anisotropic mechanical properties, cosmetics, diagnostics, liquid crystal pigments, decorative and security applications, nonlinear optics, optical information storage, electronic devices like organic field effect transistors (FET or OFET), electroluminescent devices, or as chiral dopants.

The present invention provides several methods for biological production of para-hydroxycinnamic acid (PHCA). The invention is also directed to the discovery of new fungi and bacteria that possess the ability to convert cinnamate to PHCA. The invention relates to developing of a new biocatalyst for conversion of glucose to PHCA by incorporation of the wild type PAL from the yeast Rhodotorula glutinis into E. coli underlining the ability of the wildtype PAL to convert tyrosine to PHCA. The invention is also directed to developing a new biocatalyst for conversion of glucose to PHCA by incorporation of the wildtype PAL from the yeast Rhodotorula glutinis plus the plant cytochrome P-450 and the cytochrome P-450 reductase into E. coli. In yet another embodiment, the present invention provides for the developing of a new biocatalyst through mutagenesis of the wild type yeast PAL which possesses enhanced tyrosine ammonia-lyase (TAL) activity.

The invention provides a method for extracting and separating rare earth elements in a hydrochloric acid system. The method includes the steps: taking mono (2-ethylhexyl) phosphonate 2-ethylhexyl methoxy cinnamate trialkyl methyl ammonium or phosphonate (2-ethylhexyl) diester trialkyl methyl ammonium as an extracting agent; taking normal heptane as diluent; and extracting the rare earth elements in rare earth chloride water solution into the normal heptane. The extracting agent used in the method does not need to be saponified, extraction and reverse extraction acidity is low, and separation coefficient for the rare earth elements is high.

Unique photoprotective compositions contain novel methyltrialkylsilanes bearing a cinnamate, cinnamamide, benzalmalonamide or benzalmalonate function, useful as sunscreens that are active in the field of UV radiation.

The present invention relates to organoslicon modified cinnamate as reactive ultraviolet ray absorbent and its preparation process and application in preparing organic siloxane polymer and composite ultraviolet ray resisting material.

The invention discloses a microcrystalline-cellulose-modified rubber material composed of the following raw materials, by weight: 3-4 parts of an anti-aging agent BPS, 0.2-0.6 parts of 8-10% sulfuric acid, 26-30 parts of melamine, 5-8 parts of a 37% formaldehyde solution, 7-10 parts of urea, 6-10 parts of microcrystalline cellulose, 1-1.2 parts of isopropanol, 2-3 parts of sulfur, 3-4 parts of maleic anhydride, 210-230 parts of neoprene S40V, 3-4 parts of sodium fluosilicate, 20-26 parts of montmorillonite powder, 5-7 parts of tetrabutyl titanate, 20-24 parts of carbon black, 0.4-1 parts of sodium cinnamate, 2-3 parts of abietinol, 2-4 parts of palm wax, and 1-2 parts of dimethylaminopropylamine. According to the invention, microcrystalline cellulose is processed with the crosslinking effect of maleic anhydride, and is blended with abietinol, such that surface viscosity is improved, material compatibility is promoted, and good antioxidant effect is provided. Microcrystalline cellulose forms a closer network structure in melamine resin formed by melamine, urea and formaldehyde, such that resin viscosity and tensile deformation resistance are well improved, and certain reinforcement and tackifying effects are provided in the rubber material. Therefore, flexural cracking resistance, hot-air aging resistance and stability of the rubber material are improved.

A beverage product contains a preservative system comprising 20-250 mg/L benzoic acid or salt thereof, 20-250 mg/L sorbic acid or salt thereof, and 10-100 mg/L cinnamic acid or salt thereof where the benzoic acid or salt thereof to sorbic acid or salt thereof mass ratio is greater than 1:1 while the mass ratio of benzoic acid or salt thereof to the total sorbic and cinnamic acids or salts thereof is approximately 1 or less. In particular the preservative blend comprises potassium benzoate, potassium sorbate, and potassium cinnamate.

A thermoplastic composition includes a polyolefin having a polymeric backbone and, associated therewith, one or more ionic compounds having a central metal element and one or more carboxylic acid functional moieties. The thermoplastic composition may be, for example, polyethylene or polypropylene. A method of improving the mechanical properties of thermoplastics includes adding, to a thermoplastic composition having a polymeric backbone, an additive including one or more ionic compounds having a central metal element and one or more carboxylic acid functional moieties, wherein the additive is added to the thermoplastic composition at conditions suitable to associate the one or more ionic compounds to the polymeric backbone. The ionic compounds may be, for example, zinc cinnamate, zinc hydrocinnamate, zinc naphthoate, zinc naphthalene acetate, isophthalic acid zinc salt, and phthalic acid zinc salt, and their equivalents substituting calcium or magnesium instead of zinc as the central metal element, and mixtures thereof.

The invention discloses a bionic marine antifouling paint which comprises the following raw materials in parts by weight: 30-45 parts of fluorinated acrylic ester, 20-35 parts of silicone rubber, 2-10 parts of biological antifouling agent, 15-25 parts of filler, 0.5-1 part of organic bentonite, 0.5-1 part of polyethylene wax and 2-7 parts of propylene glycol. According to the bionic marine antifouling paint disclosed by the invention, P-cinnamate sulfate in the biological antifouling agent has a remarkably strong attachment inhibiting effect on marine bacteria and barnacle; homarine can prevent attachment of marine benthic diatom and barnacle; diterpene formamide has a function of inhibiting barnacle and shellfish larvae; the rubber silicon material and fluorinated acrylic ester material have extremely low surface free energy, low friction coefficient, high hydrophobicity and high contamination release performance, so that attachments are not easily attached or are insecurely attached.

The invention provides a method for extracting and separating rare earth elements in a sulfuric acid system. The method includes the steps: taking mono (2-ethylhexyl) phosphonate 2-ethylhexyl methoxy cinnamate trialkyl methyl ammonium as an extracting agent; taking normal heptane as diluent; and extracting the rare earth elements in rare earth sulfate water solution into the normal heptane. The extracting agent used in the method does not need to be saponified, extraction and reverse extraction acidity is low, and separation coefficient for the rare earth elements is high.

The invention relates to a preparation method of cinnamate esters and derivatives thereof, which is shown as the following chart, wherein, R1 is hydrogen, 4-methoxyl or 3-nitryl; R is methyl, ethyl or isopropyl; the preparation takes substituted benzaldehyde and acetone as raw materials and then carries out condensation to obtain substituted benzalacetone under the condition of a NaOH solution. The obtained substituted benzaldehyde carries out 'one-pot' reaction with copper oxide, iodine, pyridine and alcohol, and potassium carbonate is added, and then the cinnamate esters and the derivatives thereof can be obtained. The preparation method of the invention has advantages of cheap raw materials, simple operation, moderate reaction condition and environmental friendliness, and provides a feasible preparation method of the cinnamate esters and the derivatives thereof for industry.

Provided is an oil-in-water emulsion sunscreen cosmetic composition that can provide high protection ability against UVA and excellent emulsion stability. The oil-in-water emulsion sunscreen cosmetic composition is characterized in that it contains (A) a hydrophobized zinc oxide having an absorbance of 0.3 or more at a wavelength of 370 nm, (B) a UVA absorber being solid at room temperature, (C) a UVB absorber, (D) a liquid-state higher fatty acid, (E) a nonionic surfactant, (F) a volatile oil, (G) a quaternary ammonium compound having a long-chain aliphatic group and (H) water. Particularly, it is preferable that the hydrophobized zinc oxide has an average particle size within a range of 35 to 100 nm; the hydrophobized zinc oxide is hydrophobidized by use of hydrogen dimethicone; the quaternary ammonium compound having a long-chain aliphatic group is distearyldimethylammonium chloride; and the UVB absorber is octylmethoxy cinnamate.

The invention relates to preparation of a poplar antimicrobial compound and application thereof as an antimicrobial. The antimicrobial compounds are traced and separated from 107 branches of poplar in Europe and America; and through structural analysis, the antimicrobial compounds are para-hydroxy fat alkanol ester cinnamate, 5-hydroxy-7-methoxyflavone, 5, 7-ferrichrysin and 5, 7-dihydroxyflavanol. The invention first defines that flavone compounds are major antimicrobial compositions in the poplar, and simultaneously defines that extracts of the 107 poplars in Europe and America and antimicrobial compositions thereof have obvious inhibition activity to various phytopathogens, and can be used for prevention and treatment of insect pests and plant disease.

The invention discloses a microcapsule type flame retardant and a preparation method thereof. The flame retardant comprises the following components in parts by weight: triaryl phosphate, a phenolic resin, aminomethyl phosphonic acid, a coupling agent, a flame-retardant synergist, cinnamate, coumarin ester, nano chitosan, gelatin, sodium alginate, a natural fiber, and the like. The preparation method of the microcapsule type flame retardant comprises the following steps: (1) mixing the triaryl phosphate and the phenolic resin according to a formula, stirring, further adding an anionic emulsifier, gulcomannan, the aminomethyl phosphonic acid, the coupling agent, the flame-retardant synergist and an antioxidant, continuously stirring, further adding a natural fiber, stirring, and performingextrusion; (2) mixing the nano chitosan, the gelatin and the sodium alginate, uniformly stirring, further adding baicalin, the cinnamate and the coumarin ester, and stirring; (3) mixing products of the step (1) and the step (2), thereby obtaining the microcapsule type flame retardant. The microcapsule type flame retardant disclosed by the invention is good in thermal stability, good in flame retardancy and small in environment damage.

The invention relates to a cinnamate type ultraviolet sun-screening agent molecular engram solid-phase extraction column as well as preparation and application thereof, and belongs to the technical field of solid-phase extraction of detection analysis. According to the invention, iso-octyl p-methoxycinnamate is adopted as a template molecule, methacrylic acid is adopted as a functional monomer, ethylene glycol dimethyl acrylic ester is adopted as a crosslinking agent, azodiisobutyronitrile is adopted as an initiating agent, cinnamate type ultraviolet sun-screening agent molecular engram polymer microspheres are obtained by virtue of a precipitation polymerization method, and the obtained polymer microspheres are filled into a solid-phase extraction column through a wet method. The molecular engram polymer solid-phase extraction column provided by the invention can selectively adsorb a cinnamate type ultraviolet sun-screening agent, and compared with a conventional solid-phase extraction column, the molecular engram polymer solid-phase extraction column overcomes the defect of poor selectivity of a conventional solid-phase extraction filler, is strong in adsorptivity, high in extraction recovery rate, and achieves efficient selective separation, enrichment and purification of a trace amount of the cinnamate type ultraviolet sun-screening agent in various environments and biological samples.

A method for extracting an alcohol soluble substance from bark of mongolian pine comprises the following steps: (1), smashing the bark of mongolian pine into particles of 20 to 80 meshes, feeding the particles into n-hexane/chloroform and carrying out ultrasonic treatment to obtain a mixture A; (2). filtering the mixture A to obtain filtrate a and residue, and distilling the filtrate a to distil off n-hexane/chloroform to obtain lipid; (3). feeding the residue into an ethanol solution and carrying out ultrasonic treatment; (4). filtering mixture B to obtain filtrate b, distilling the filtrate b to distil off the ethanol solution to obtain the concentrated solution of the alcohol soluble substance, and drying the concentrated solution to obtain the alcohol soluble substance. The alcohol soluble substance extracted by the method is high in content of flavone, contains sinapic acid, secoisolariciresinol, 7-hydroxy-secoisolariciresinol-9'-p-hydroxy(trans) cinnamate and other effective components, and has anti-oxidation and antimicrobial effects and the like.

A UV-lithographic micro-patterned organic thin film transistor semiconductor material is a blend film prepared by the process steps of: blending a semiconductor polymer and a UV-crosslinking polymer in an organic solvent, reducing the solubility of an organic semiconductor to precipitate continuous nano fibers, dispersing the nano fibers in a UV-crosslinking polymer matrix, and finally spin-coating, wherein the mass of the organic semiconductor component accounts for 1% to 50% the total mass of the blend film. Photosensitive groups contain cinnamate group, p-methyl cinnamate group, acrylate group, methyl acrylate group, epoxy group or oxetanyl group. The semiconductor material can be used as the semiconductor layer in the fabrication of organic thin film transistors.

Provided herein are debondable adhesive compositions comprising (A) one or more bis-maleimide (BMI), nadimide or itaconimide oligomer(s), (B) at least one ethylenically unsaturated co-monomer (e.g. co-monomers selected from the group consisting of acrylates, methacrylates, vinyl ethers, vinyl esters, styrenic compounds, allyl compounds, polybutadienes, cinnamates, crotonates, and mixtures of any two or more thereof), and (C) a photoinitiator. In another embodiment, the present invention is directed to an assembly of a substrate and a carrier for the substrate in which the debondable adhesive composition temporarily bonds the substrates, and a method for fabricating the assembly. The debondable adhesive compositions maintain their adhesion at temperatures of 300° C. or greater, are easily and cleanly debondable at ambient conditions, permit temporary bonding at high processing conditions, and do not compromise handling or performance of the substrates.

The invention discloses an attapulgite soldier sunscreen cream which is characterized by comprising pasty attapulgite clay, pasty mixing liquid of sophora japonica, water extraction liquid of radix scutellariae, raw juice of aloe gel, alcohol extraction liquid of sophora japonica, pasty alcohol mixing liquid of radix scutellariae, pasty alcohol mixing liquid of aloe, olive oil, honey, isooctyl p-methoxy cinnamate, rutile type titanium pigment, isobutyl palmitate, methyl glucoside sesqui-stearate (TC-SS), methyl glucoside sesqui-stearate polyethenoxy ether (TC-SS-E 20) and deionized water. Theattapulgite soldier sunscreen cream forms a protection film on the skin surface and can reflect and absorb ultraviolet rays for a long time to prevent the skin from being harmed by ultraviolet rays, and the protection film which is similar to a bullet-proof vest can protect skin and can easily keep skin away from all-pervasive sunlight. The attapulgite soldier sunscreen cream is suitable for beingsmeared on the skin surfaces of officers and soldiers who participate in military training in the field.

The invention discloses a preparation method of Ozagrel sodium. The method comprises the following steps: performing a bromination reaction on ethyl 4-methylcinnamate and N-bromo-succinimide by takingacetonitrile as a solvent under the triggering of azodiisobutyronitrile, so as to obtain ethyl 4-bromomethylcinnamate; performing a condensation cyclization reaction on the ethyl 4-bromomethylcinnamate and imidazole by taking sodium hydroxide as an acid-binding agent and taking tetrahydrofuran as a solvent, so as to obtain imidazole ethyl 4-methylcinnamate; performing alkali hydrolysis on the imidazole ethyl 4-methylcinnamate, so as to obtain the Ozagrel sodium. According to the preparation method, the condensation cyclization reaction is performed by taking the sodium hydroxide as the acid-binding agent and taking the tetrahydrofuran as the solvent, so that the finally obtained product does not contain toxic components, the yield and the purity of the product can be effectively improved,and the content of genotoxic impurities (the ethyl 4-bromomethylcinnamate and ethyl 4-dibromomethylcinnamate) in the product is zero.