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30 results about "Cymenes" patented technology

The cymenes (methylcumenes, isopropyltoluenes) constitute a group of substances of aromatic hydrocarbons, which structure consists of a benzene ring with an isopropyl group (−CH(CH₃)₂), and a methyl group (−CH₃) as a substituent. Through their different arrangement, they form three structural isomers with the molecular formula C₁₀H₁₄. They also belong to the group of C₄-benzenes. The best-known isomer is the p-cymene, it occurs in nature and is one of the terpenes.

Pest control composition comprising hydrotropic salt

PendingUS20260060243A1BiocideAnimal repellantsCinnamyl acetatePropanoic acid
A pest control composition includes from about 4 wt % to about 10 wt % of sodium lauryl sulfate; one or more C5 to C9 hydrotropic salt; from about 1 wt % to about 10 wt % of one or more active ingredients selected from the group consisting of corn mint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cedarwood oil, cinnamon oil, geranium oil, eugenol, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, geraniol, cinnamyl acetate, cinnamic alcohol, cinnamaldehyde, citronellol, eucalyptol / 1,8-cineole, alpha-pinene, bornyl acetate, gamma-terpinene, and combinations thereof; and from about 60 wt % to about 95 wt % of water. The pest control composition exhibits a water peak in a 2H spectrum having a width encompassing 90% of the area of the entire water signal of about 50 Hz or more, as determined by the 2H NMR Method.
Owner:PROCTER & GAMBLE CO

Herbal preparation for prevention and treatment of helicobacter pylori infection

PendingUS20260014223A1Antibacterial agentsHydrocarbon active ingredientsHerbal preparationsSatureja
The invention relates to the use of herbal preparation, characterized by presence of 4 dominant compounds (carvacrol a from about 35% to about 50%, γ-terpinene from about 10% to about 30%, thymol from about 10% to about 25%, p-cymene from about 8% to about 20%, as expressed in % of total peak area in GC / MS chromatogram), obtained by mixing at least two essential oils from species selected from the group of genera Satureja L., Origanum L. and Thymus L., to prepare food supplement or medicament for treatment and prevention of gastric Helicobacter pylori infection in humans. The mixture may be placed on liquid or solid carrier and capsulated in non gastro-resistant capsules. The invention also relates to dosage regiment of herbal preparation for treatment and prevention of patients with Helicobacter pylori infection which leads to successful eradication of bacteria without any side-effects.
Owner:HERBELIXA DOO SREMSKA KAMENICA

A natural plant essential oil insecticide composition, its preparation method and application

PendingCN122350113APhellandreneAllyl thiocyanate
This invention relates to the field of grain storage technology, and in particular to a natural plant essential oil insecticide composition, its preparation method, and its application. The natural plant essential oil insecticide composition comprises a main active ingredient and co-active ingredients. The main active ingredient includes cinnamaldehyde, allyl isothiocyanate, and cuminaldehyde. The co-active ingredients include 1,8-cineole, β-phellandrene, γ-terpinene, p-cymene, eugenol, α-pinene, linalool, and limonene. By volume percentage, the insecticide composition contains: cinnamaldehyde 15-40%, allyl isothiocyanate 20-40%, and cuminaldehyde 0.5-16.5%. The insecticide composition provided by this invention is made from natural plant essential oils, is stable, safe, environmentally friendly, does not pollute grains, and has an aromatic odor. It has a strong insecticidal effect on pests such as rice weevils in grains and has good application prospects in the field of grain storage.
Owner:GUANGDONG UNIV OF TECH

Pest control composition comprising a hydrotropic salt

PendingUS20260060238A1BiocideAnimal repellantsCinnamyl acetatePropanoic acid
A pest control composition having from about 4 wt % to about 10 wt % of sodium lauryl sulfate, one or more C5 to C9 hydrotropic salt, from about 1 wt % to about 10 wt % of an active ingredient selected from the group consisting of corn mint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cedarwood oil, cinnamon oil, geranium oil, eugenol, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, geraniol, cinnamyl acetate, cinnamic alcohol, cinnamaldehyde, citronellol, eucalyptol / 1,8-cineole, alpha-pinene, bornyl acetate, gamma-terpinene, and combinations thereof, and from about 60 wt % to about 95 wt % water. The pest control composition can exhibit a tan delta-1 value at a frequency of 1 Hz of from about 0.1 to about 2.
Owner:PROCTER & GAMBLE CO

Laurel essential oil with anti-aging activity and application of laurel essential oil

The invention discloses laurel essential oil with anti-aging activity and application of the laurel essential oil. According to the method, laurel essential oil is used for acting on caenorhabditis elegans to verify the aging delaying effect of the caenorhabditis elegans, after the caenorhabditis elegans are counted and subjected to synchronization treatment, a life determination test of the caenorhabditis elegans is carried out, a blank control group, a DMSO solvent group, a positive drug group and a laurel essential oil experimental group are set respectively, a survival curve is drawn, and statistical analysis is carried out. Results show that the lifetime of nematodes in a laurel essential oil treatment group is remarkably prolonged, and the anti-aging effect of the laurel essential oil treatment group is superior to that of a Meanwhile, target function analysis on the laurel essential oil shows that the essential oil regulates and controls senescence-related pathways. The further determination of the effect of monomer components in the laurel essential oil on delaying caenorhabditis elegans aging shows that p-cymene, methyleugenol, ocimene, linalool, sabinene, 4-terpene alcohol, terpinene and linalyl acetate show significant anti-aging activity.
Owner:KUNMING UNIV OF SCI & TECH

A method for efficiently preparing a cymene ruthenium diiodide dimer

PendingCN122444787APhellandreneCombinatorial chemistry
This invention discloses an efficient method for preparing p-cymene ruthenium iodide dimer. The method uses ruthenium trichloride as the ruthenium source, propylterpinene as the ligand precursor, and an alcohol solvent as the reaction medium. The target product is synthesized efficiently through a two-step continuous reaction. First, ruthenium trichloride and propylterpinene are reacted at a specific temperature to generate a dichloro(p-cymene)ruthenium dimer intermediate. Then, an iodide aqueous solution is added for reflux reaction to complete the replacement of chloride ions with iodide ions. Finally, high-purity p-cymene ruthenium iodide dimer is obtained after simple post-processing. This invention innovatively uses propylterpinene instead of traditional phellandrene, significantly improving the stability and purity of the raw materials and reducing production costs. The one-step integrated process simplifies the operation process, avoids the risk of organic vapor exposure, and improves production safety. Optimized reaction parameters and material ratios achieve a product yield of up to 99.8%, and the process is adaptable to large-scale production requirements.
Owner:CHENZHOU GAOXIN MATERIAL

Method and system for producing p-cymene-rich pyrolysis oil and high-value products from waste tires by supercritical carbon dioxide pyrolysis

PendingCN122648110ADehydrogenationLimonene
A kind of waste tire supercritical carbon dioxide pyrolysis production rich in p-cymene pyrolysis oil and high-value method and system.The present application is with supercritical carbon dioxide as reaction medium and the whole closed loop,non-combustion pyrolysis process of heat transfer mass carrier.System mainly includes three or more than above series operation's high-pressure supercritical carbon dioxide reactor,interwall heat recovery heat exchanger and specific physical solvent absorption tower.In this process, waste tire is heated to 350 DEG C~400 DEG C, pressure is higher than 9MPa CO2 supercritical state.Waste tire macromolecular network occurs high selectivity cleavage and in situ dehydrogenation aromatization reaction, can target generation yield up to 20% of total mass of waste tire high-value p-cymene, while relying on the solvation effect of supercritical fluid completely inhibits or in situ conversion of limonene generation, fundamentally solves the chemical engineering problem that both boiling points are extremely close and difficult to separate.
Owner:DALIAN UNIV OF TECH

Acne-removing and repairing composition containing hydrolyzed sponge as well as preparation method and application of acne-removing and repairing composition

PendingCN121243032ACosmetic preparationsAntipyreticCAPRYLOYL GLYCINEPharmacology
The invention relates to an acne-removing and repairing composition containing hydrolyzed sponge as well as a preparation method and application of the acne-removing and repairing composition, and belongs to the technical field of cosmetics. According to the present invention, the capryloyl glycine, the hydrolyzed sponge, the o-cymene-5-ol or the quaternary ammonium salt-73 and the schizophyllan are combined, such that the prepared composition has the excellent acne removing effect; meanwhile, the schizophyllan, the ebony seed oil and the sh-pentapeptide-1 are combined for use, so that the prepared composition has the effects of preserving moisture and locking water. The composition finished product prepared by the invention also has a moisturizing effect on the basis of an acne removing effect, so that the phenomenon that the skin barrier is weakened more or less when the components with the acne removing effect take effect is avoided, and further the skin becomes fragile, dry and sensitive; the stable internal environment of the skin is effectively maintained by maintaining the normal moisture content of the skin, the vicious circle of repeated'damage-oil production-acne growth-re-damage 'of the skin is fundamentally avoided, and efficient and deep repair of the skin is effectively realized.
Owner:GUANGZHOU NOYASSURE BIOCHEM AND TECH CO LTD

Oil-control antibacterial composition containing ortho-cymene-5-alcohol as well as preparation method and application of oil-control antibacterial composition

The invention belongs to the technical field of cosmetics, and particularly relates to an o-cymene-5-alcohol-containing oil-control antibacterial composition as well as a preparation method and application of the o-cymene-5-alcohol-containing oil-control antibacterial composition. The oil-control antibacterial composition containing the ortho-cymene-5-ol is prepared from the following components in parts by mass: 5 to 15 parts of the ortho-cymene-5-ol, 1 to 10 parts of a black willow bark extract, 5 to 15 parts of a sake yeast extract, 1 to 10 parts of a camellia flower extract and 1 to 10 parts of an abelmoschus esculentus extract. According to the invention, a composite process of enzymolysis pretreatment and carbon dioxide supercritical extraction is adopted, so that active ingredients can be fully extracted on the premise of protecting the structures of the active ingredients from being damaged, and the antibacterial effect is remarkably enhanced; all the components are scientifically compounded, synergistic interaction of the oil control effect is achieved, through the synergistic effect of the components, the oil control rate is increased, the oil control effect is more durable, and the problems of greasy skin, floodlight and the like can be effectively solved.
Owner:GUANGZHOU KELIDE DAILY CHEM TECH CO LTD

Citrus-flavored beverage and method for suppressing photodegradation odor

This invention provides a citrus-flavored beverage that can reduce off-odors while improving flavor, and a technology that can suppress the odor caused by photodegradation of beverages. [Solution] The citrus-flavored beverage of the present invention contains 0.001 ppm to 1 ppm of o-cymene, and 0.001 ppm to 0.6 ppm of octanal, and / or 0.001 ppm to 0.2 ppm of decanal.
Owner:ASAHI SOFT DRINKS CO LTD

Pest control composition comprising hydrotropic salt

PCT designated stageWO2026050438A1BiocideAnimal repellantsCinnamyl acetatePropanoic acid
A pest control composition includes (i) from about 4 wt% to about 10 wt% of sodium lauryl sulfate; (ii) one or more C5 to C9 hydrotropic salt; (iii) from about 1 wt% to about 10 wt% of one or more active ingredients selected from the group consisting of corn mint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cedarwood oil, cinnamon oil, geranium oil, eugenol, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, geraniol, cinnamyl acetate, cinnamic alcohol, cinnamaldehyde, citronellol, eucalyptol / 1,8- cineole, alpha-pinene, bornyl acetate, gamma-terpinene, and combinations thereof; (iv) from 1% to 5% by weight of a solvent, wherein the solvent is a C1-C4 alcohol, and (v) 60 wt% to about 95 wt % of water. The pest control composition exhibits a water peak in a H spectrum having a width encompassing 90% of the area of the entire water signal of about 50 Hz or more, as determined by the H NMR Method. A method of controlling one or more weeds by contacting the said weeds with the pest control composition.
Owner:PROCTER & GAMBLE CO

Pest control composition comprising a hydrotropic salt

PendingUS20260060241A1BiocideAnimal repellantsCinnamyl acetatePropanoic acid
A pest control composition includes from about 4 wt % to about 10 wt % of sodium lauryl sulfate; a C5 to C9 hydrotropic salt; from about 1 wt % to about 12 wt % of one or more active ingredients chosen from corn mint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cedarwood oil, cinnamon oil, geranium oil, eugenol, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, geraniol, cinnamyl acetate, cinnamic alcohol, cinnamaldehyde, citronellol, eucalyptol / 1,8-cineole, alpha-pinene, bornyl acetate, gamma-terpinene, or combinations thereof; and from about 60 wt % to about 95 wt % of water. The ratio of hydrotropic salt to sodium lauryl sulfate of from about 0.15 to about 0.9. The pest control composition exhibits a receding contact angle of less than 21 degrees.
Owner:PROCTER & GAMBLE CO

A rapid method for identifying tamarind ripeness based on aroma markers

PendingCN122306996ABiotechnologyMicrobiology
This invention discloses a method for identifying tamarind maturity based on aroma markers. Through systematic research, this invention, for the first time, discovers the correlation between eight characteristic aroma markers and tamarind maturity: for unripe tamarind, phenylacetaldehyde, sec-butylamine, 5-acetoxymethyl-2-furfural, and tea spiroane; for ripe tamarind, 5-hydroxymethylfurfural, octanal, p-cymene, and styrene. This method is simple to operate, has an accuracy rate of ≥98%, and is suitable for tamarind harvesting and grading, quality evaluation, and processing quality control.
Owner:DALIAN POLYTECHNIC UNIVERSITY

Citrus flavored beverage and method for producing citrus flavored beverage

The present invention provides a beverage having a new value in terms of flavor, that is, a beverage in which the intensity of an ink-like aroma is reduced and the complexity of the flavor is enhanced, by utilizing p-cymene that increases in the beverage over time, and a method for producing the same.SOLUTION: The citrus-flavored beverage packed in a container has a p-cymene concentration of ≥ 125 μ g / L and an α - terpineol concentration of ≥ 12 times the p-cymene concentration.SELECTED DRAWING: None
Owner:ASAHI BREWERIES LTD

Plant vitality enhancer

The present invention aims to provide a plant vitality agent and a plant cultivation method that can promote plant growth and also impart to plants resistance to environmental stresses such as drought, extreme heat, and high sodium chloride concentrations. [Solution] A plant vitality agent comprising a plant extract, wherein the plant extract comprises a volatile terpene, and the volatile terpene is one or more selected from the group consisting of terpinen-4-ol, p-cymene, 1,8-cineole, linalool, and α-terpineol, and the weight percentage of the volatile terpene in the plant vitality agent is 0.003 to 90% by weight based on the weight of the plant vitality agent.
Owner:SANYO CHEM IND LTD

Composition with effects of removing acnes and tightening pores and application thereof

The invention belongs to the technical field of cosmetics, and relates to a composition with the effects of removing acnes and tightening pores and application of the composition, and the composition is prepared from Philionin, o-cymene-5-ol, bailionin, surfactin, madecassoside, jasmineshu and colloidal sulfur. According to the acne-removing composition, the paigonin, the surfactin, the madecassoside, the Jhenyeshu and the colloidal sulfur can relieve redness and swelling and stimulation caused by acne, the five components have a synergistic effect, and the paigonin, the o-cymene-5-ol and the colloidal sulfur have an antibacterial effect and can improve acne symptoms. The composition disclosed by the invention has an excellent acne removing effect and is mild and non-irritant in effect.
Owner:GUANGDONG BASONA BIOTECHNOLOGY CO LTD

Colloidal sulfur-based acne-removing composition as well as preparation method and application thereof

The invention relates to the technical field of skin external preparations, in particular to a colloidal sulfur-based acne-removing composition and a preparation method and application thereof.The colloidal sulfur-based acne-removing composition is at least prepared from, by weight, 10-50 parts of colloidal sulfur, 3-12 parts of ethyl lauroyl arginate hydrochloride, 3-12 parts of palmitoyl proline, 10-50 parts of glycolipid, 3-20 parts of kaolin, 3-12 parts of panthenol and 3-12 parts of o-cymene-5-ol. Colloidal sulfur is introduced to be compounded with specific bioactive components to prepare the composition capable of efficiently resisting acnes, removing blackheads, resisting inflammation and repairing barriers, and the composition can be subsequently added into face cleansing products for synergism.
Owner:GUANGZHOU JIMEN COSMETICS CO LTD

Reactor for treating polystyrene material

A system for continuously treating recycled polystyrene material includes a hopper / densifier configured to feed recycled polystyrene material into the system. An extruder can turn the recycled polystyrene material into a molten material. In some embodiments the extruder uses thermal fluids, electric heaters, and / or a separate heater. Solvents, such as toluene, xylenes, cymenes, and / or terpinenes can aid in generating the molten material. The molten material can be depolymerized in a reactor and a catalyst can be used to aid the depolymerizing. In certain embodiments, the catalyst is contained in a permeable container. In some embodiments, copolymers / monomers are grafted onto the depolymerized material. The depolymerized molten material can be cooled via a heat exchanger. The product can be isolated by extraction, distillation, and / or separation. In some embodiments, the product is treated through filtration and absorption media. In some embodiments, multiple reactors are used.
Owner:GREENMANTRA RECYCLING TECH

Compositions comprising delta-9-tetrahydrocannabinol and terpenes for treatment and / or prevention of chronic musculoskeletal pain, including chronic lumbago, chronic non-specific lumbago, osteoarthritis or other chronic musculoskeletal pain conditions

PendingCN121620367ADispersion deliveryHydrocarbon active ingredientsNerolidolHumulene
The present invention relates to compositions for use in the treatment and / or prevention of chronic musculoskeletal pain, including chronic lumbodorsal pain (CLBP), chronic non-specific lumbodorsal pain (CNSLBP), osteoarthritis and / or other chronic musculoskeletal pain affecting body parts or systems, such as joints, tendons, ligaments, bones and / or muscles, the composition comprises delta-9-tetrahydrocannabinol (THC), alpha-bisabolol, guaiacol, and beta-caryophyllene and at least one selected from the group consisting of linalool, alpha-humulene, nerolidol, caryophyllene oxide, alpha-pinene, camphene, beta-pinene, beta-myrcene, limonene, eucalyptol, ocimene, gamma-terpinene, isoterpinene, alpha-terpinene, p-cymene, and at least one selected from the group consisting of linalool, alpha-humulene, nerolidol, caryophyllene oxide, alpha-pinene, camphene, beta-pinene, beta-myrcene, limonene, eucalyptol, ocimene, gamma-terpinene and additional terpenes of isopulegol and geraniol. The invention also relates to pharmaceutical formulations comprising such compositions for use in the treatment and / or prevention of chronic musculoskeletal pain, including chronic lumbodorsal pain (CLBP), chronic non-specific lumbodorsal pain (CNSLBP), osteoarthritis and / or other chronic musculoskeletal pain affecting body parts or systems, such as joints, tendons, ligaments, bones and / or muscles. The present invention also relates to methods of treating and / or preventing chronic musculoskeletal pain, including chronic lumbodorsal pain (CLBP), chronic non-specific lumbodorsal pain (CNSLBP), osteoarthritis and / or other chronic musculoskeletal pain affecting body parts or systems, such as joints, tendons, ligaments, bones and / or muscles. The invention also relates to kits comprising such compositions.
Owner:VIRTANICO GMBH

Preparation method and application of polyethylene nanofiber aerogel and flame-retardant composite aerogel felt

A preparation method of nanofiber polyethylene aerogel comprises the following steps: 1) mixing polyethylene powder with p-cymene, heating and stirring to obtain a polyethylene solution; 2) pouring the solution into a mold, and cooling to room temperature to obtain polyethylene gel; and (3) carrying out gradient solvent exchange on the polyethylene gel by adopting an organic solvent to obtain organic gel under corresponding solvent exchange, and carrying out supercritical drying to obtain the nanofiber polyethylene aerogel. The preparation method is simple, efficient and reliable, the used raw material is ultra-high molecular weight polyethylene, and a thought is provided for treatment of daily high-frequency used high polymer materials; the nanofiber polyethylene aerogel prepared by the method can be compounded with other interlayer materials, and can be applied to the application fields of heat preservation, heat insulation, fire prevention and the like.
Owner:XIANGTAN UNIV

A method for preparing a palladium-supported triazine-based molecular heterojunction and its use in the catalytic dehydrogenation of dipentene

This invention discloses a method for preparing palladium-supported triazine-based molecular heterojunction materials, comprising: mixing at least two aromatic nitrile compounds, then grinding and mixing them uniformly with a metal halide salt, calcining them in a tube furnace, washing, purifying, and drying to obtain the triazine-based molecular heterojunction material; wherein the aromatic nitrile compounds are at least two of terephthalonitrile, terephthalic acid acetonitrile, or 4,4'-dicyanobiphenyl; mixing the triazine-based molecular heterojunction material and palladium chloride-hydrochloric acid solution uniformly, heating under reflux, cooling to room temperature, adjusting the pH to alkaline with sodium hydroxide solution, adding sodium borohydride solution for reduction reaction, and after the reaction is completed, washing and drying to obtain the palladium-supported triazine-based molecular heterojunction material. Applying this catalyst to the catalytic dehydrogenation of dipentene to p-cymene can yield high-yield and high-purity p-cymene products, which is of great significance for catalyst development and the high-value utilization of biomass.
Owner:HUAQIAO UNIVERSITY +2

Citrus-flavored beverage and method for producing citrus-flavored beverage

PCT designated stageWO2026023128A1Alcoholic beverage preparationFood scienceBiotechnologyCitrus Flavor
[Problem] To provide: a beverage that, as a result of using p-cymene, which increases in a beverage over time, a new value in flavor is imparted, that is, the intensity of an ink-like aroma is reduced and the complexity of the flavor is enhanced; and a method for producing the beverage. [Solution] A packaged citrus-flavored beverage has a p-cymene concentration of 125 μg / L or more and an α-terpineol concentration of at least 12 times that of the p-cymene concentration.
Owner:ASAHI GRP HLDG LTD +1

Pest control composition comprising a hydrotropic salt

PCT designated stageWO2026050442A1BiocideAnimal repellantsCinnamyl acetatePropanoic acid
A pest control composition having from about 4 wt% to about 10 wt% of sodium lauryl sulfate, one or more C5 to C9 hydrotropic salt, from about 1 wt% to about 10 wt% of an active ingredient selected from the group consisting of corn mint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cedarwood oil, cinnamon oil, geranium oil, eugenol, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, geraniol, cinnamyl acetate, cinnamic alcohol, cinnamaldehyde, citronellol, eucalyptol / l,8-cineole, alpha-pinene, bomyl acetate, gamma-terpinene, and combinations thereof, and from about 60 wt% to about 95 wt% water. The pest control composition can exhibit a tan delta - 1 value at a frequency of 1Hz of from about 0.1 to about 2.
Owner:PROCTER & GAMBLE CO

Hydrogenated terminal amine group liquid nitrile rubber, its preparation method and application

PendingCN122356374APolymer scienceAcyl group
This invention discloses a hydrogenated amine-terminated liquid nitrile butadiene rubber, its preparation method, and its applications. The preparation method of the hydrogenated carboxyl-terminated liquid nitrile butadiene rubber includes: dissolving a p-cymene-[N-(phenyl)-P,P-diphenylphosphineimino][(benzenesulfonyl)methyl]ruthenium catalyst in a first organic solvent, adding carboxyl-terminated liquid nitrile butadiene rubber, and mixing to obtain a rubber mixture; adding carboxyl-terminated liquid nitrile butadiene rubber and the first organic solvent to the rubber mixture to prepare a rubber solution with a certain solid content, and carrying out a hydrogenation reaction in the presence of hydrogen to obtain the hydrogenated carboxyl-terminated liquid nitrile butadiene rubber; mixing the hydrogenated carboxyl-terminated liquid nitrile butadiene rubber with a second organic solvent, adding an amine organic compound, and reacting to obtain the hydrogenated amine-terminated liquid nitrile butadiene rubber. The hydrogenated amine-terminated liquid nitrile butadiene rubber prepared by this invention has an amine value of 30-170 KOH mg / g, a gel content of <3%, and a viscosity of 5000 mPa·s-200000 mPa·s.
Owner:QINGDAO UNIV OF SCI & TECH

Component analysis and quality evaluation method and application of katsumadai seed and katsumadai seed processed product based on HS-GC-MS and machine learning

PendingCN121275949AComponent separationPhellandreneMultivariate statistical
The invention provides an HS-GC-MS and machine learning-based component analysis and quality evaluation method and application of katsumadai seeds and processed products thereof, and belongs to the technical field of quality evaluation. According to the method, HS-GC-MS and electronic nose technologies are adopted, multivariate statistical methods such as principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) are combined, the accuracy and efficiency of processed product classification and sensory evaluation are improved, and odor characteristics and volatile component compositions of alpinia katsumadai from different producing areas and processed products of the alpinia katsumadai are deeply analyzed. The result shows that main volatile components in the katsumadai seed and the processed product thereof are similar in composition and mainly comprise 19 olefins, 8 alcohols, 3 aldehydes, 2 ketones, 2 esters, 1 ether and 1 nitrogen-containing compound, the olefins and the ethers account for 95% or above of the total amount of a sample, and the total amount of the nitrogen-containing compound accounts for 20% or above of the total amount of the sample. Alpha-caryophyllene, p-cymene, phellandrene and other olefin components and ether component eucalyptol are taken as main components.
Owner:SHANDONG ACAD OF CHINESE MEDICINE +1

Ruthenium ammonia complex, preparation method and application of ruthenium ammonia complex in photocatalytic ammoxidation

The invention discloses a ruthenium ammonia complex, a preparation method and application of the ruthenium ammonia complex in photocatalytic ammoxidation, and belongs to the technical field of organic synthesis. According to the invention, p-cymene ruthenium dichloride dimer is taken as a precursor and is subjected to mixed reaction with a bipyridine ligand, and the obtained ruthenium ammonia complex or ruthenium diamine complex can be applied to ammoxidation as a photocatalyst. Compared with hydrazine prepared by electrocatalytic ammoxidation of a ruthenium complex, the complex prepared by the invention can be used for photocatalytic ammoxidation to obtain hydrazine, so that the blank that hydrazine is obtained by photocatalytic ammoxidation of the ruthenium complex is filled up, and a cleaner and more efficient method is provided for preparation and purification of hydrazine.
Owner:SOUTHWEST UNIV

Pest control composition comprising a hydrotropic salt

PCT designated stageWO2026050070A1BiocideAnimal repellantsBenzoic acidCinnamyl acetate
A pest control composition includes from about 4 wt% to about 10 wt % of sodium lauryl sulfate; a C5 to C9 hydrotropic salt, especially salts of benzoic acid or of sorbic acid; from about 1 wt% to about 12 wt% of one or more active ingredients chosen from corn mint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cedarwood oil, cinnamon oil, geranium oil, eugenol, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, geraniol, cinnamyl acetate, cinnamic alcohol, cinnamaldehyde, citronellol, eucalyptol / l,8-cineole, alpha¬ pinene, bornyl acetate, gamma-terpinene, or combinations thereof; and from about 60 wt% to about 95 wt% of water. The ratio of hydrotropic salt to sodium lauryl sulfate of from about 0.15 to about 0.9. The pest control composition exhibits a receding contact angle of less than 20 degrees. A method of controlling weeds using the pest control composition..
Owner:PROCTER & GAMBLE CO

A liquid fermentation tea preparation method for improving the floral and fruity flavor of tea leaves

PendingCN122271403Aefficient synthesisRich flavor compositionBiotechnologyPichia pastoris
This invention discloses a method for preparing liquid fermented tea that enhances the floral and fruity aroma of tea leaves, belonging to the field of fermented tea technology. This invention uses Pichia pastoris (a type of yeast). Pichia cactophila FL2 fermented tea liquor, after fermentation, shows an increase of more than 11.59 times in the content of floral and fruity aroma compounds such as terpinene, an increase of 86.58 times in the content of phenylethanol, an increase of 82.83 times in the content of phenethyl acetate, and an increase of 369.26 μg / mL in the content of 1-butanol and o-cymene from 0. In addition, the increases in cymene, α-terpineol, and nerolidol reached 5.41, 13.54, and 3.34 times, respectively. The interaction of various aroma components gives the tea liquor a unique "lemon and citrus fruity aroma" flavor, while also containing sweet and sour aroma compounds. It has a good flavor and is of industrial promotion value.
Owner:KUNMING UNIV OF SCI & TECH +1