37 results about "Alpha-terpinene" patented technology

The present invention relates to a method for treating a disorder chosen from ocular Demodex, Demodex-induced blepharitis, rosacea, acne, and meibomian gland dysfunction in a patient in need thereof, comprising administering to the patient a composition comprising a therapeutically effective amount of a substance chosen from at least one of an isoprenoidal essential oil such as Tea Tree Oil; Terpinen-4-ol; (+)-Carvone; alpha-Terpineol; Cardinene; d-Carvone; l-Carvone; gamma-Terpinene; alpha-Terpinene; 1,8-Cineole; alpha-Terpineol; para-Cimene; alpha-Pinene; Limonene; (R)-(+)-Limonene; alpha-Thugene; Eucalyptol; (+)-Ledene; Cuminic Aldehyde; and Myrcene; the administration comprising contacting or scrubbing an affected area of skin or hair, or eyelid margin and lashes of the patient with the composition; also disclosed are a method for treating mange and mite infestations on a mammalian animal; and kits for in-office and at home treatments of the disorders.

The invention discloses a method for synthesizing 4-terpineol by catalyzing 1,4-cineole through a supported acid catalyst. The method comprises the following steps: preparing a catalyst, preparing 4-terpineol and the like. According to the method for synthesizing 4-terpineol by catalyzing 1,4-cineole through the supported acid catalyst disclosed by the invention, the chromatogram content can be 5% or lower after the 1,4-cineole in the raw oil is completely reacted, while the selectivity of the 4-terpineol reaches 80% or higher. Meanwhile, in addition to the 4-terpineol produced in the reaction, alpha-terpinene, gamma-terpinene and the like with high additional value can be produced, and the used mordenite supported acid catalyst can be recycled. The method disclosed by the invention has the advantages of small catalyst dosage, high selectivity, short reaction time, simple and convenient process, simplicity in operation and the like.

The invention provides a making method for a Stethynium empoascae Subba Rao attractant. The attractant is formed by combination of tea shoot volatile nerol, n-pentanol, alpha-terpinene and careen six components in certain proportion, and is loaded on a wool felt to make a lure core. The dose of each component is 10<-2>g/mL-10<-6>g/mL, and each lure core contains the six information-substances with a total volume of 100-200 microliters. Usually, during September to November every year, the Empoasca vitis Gothe population in tea garden enter the autumn peak season, and have substantial damage to tea, the dominant natural enemy Stethynium empoascae Subba Rao increases significantly in number, in the full incidence beginning period, a large number of Stethynium empoascae Subba Rao are attracted by the attractant to parasitize Empoasca vitis Gothe eggs so as to greatly enhance the natural parasitic rate, lower the Empoasca vitis Gothe Empoasca vitis Gothe, and reduce chemical control. The attractant does not pollute the environment, has no residue, and is beneficial to protection and utilization of tea garden biodiversity.

The invention discloses an attractant of tomicus yunnanensis. The attractant comprises one or more of the following components: S-(-)-alpha-pinene, 1R-(+)-alpha-pinene, myrcene, (+)-camphene, (-)-camphene, alpha-terpinene, (+)-3-carene, (1s)-(-)-beta-pinene, (-)-limonene, (+)-limonene, (-)-Myrteneol, (s)-cis-verbenol, (-)-trans-verbenol and Cuparene. According to the attractant disclosed by the invention, the attractant containing a host and polypide volatile matter is utilized for attract tomicus yunnanensis massively, so that the tomicus yunnanensis is gathered in a certain device and then is killed; the attractant has the advantages of low cost, high efficiency, complete environmental friendliness, safety to people and livestock, incapability of generating drug resistance to insects and the like, so that the traditional passive chemical prevention and treatment can be replaced by active biological prevention and treatment; meanwhile, the aims of monitoring and forecasting the forestry insect pests can be achieved according to the amount of tomicus yunnanensis in the attractant.

The invention discloses application of monoterpene and monoterpene alcohol as attractants of tomicus minor hartig consi and an attractant of tomicus minor hartig. One or more of the following components act as the application of the attractant of tomicus minor hartig consi: S-(-)-alpha-pinene, IR-(+)-alpha-pinene, myrcene, (+)-camphenee, (-)-camphene, alpha-terpinene, (+)-3-carnene, (1s)-(-)-beta-pinene, (-)-limonene, (+)-limonene, (-)-Myrtenol, (s)-cis-verbenol, (-)-trans-verbenol and cuparene.

The invention discloses a preparation method for terpene maleimide, comprising the following steps: taking terpene mainly containing alpha-pinene, alpha-terpinene and bipentene or taking turpentine mainly containing alpha-pinene as raw materials, using modified hydrogen macroporous strong acidic styrene cation exchange resin as a catalyst, and performing an addition reaction with maleic anhydride via a static bed system with a rectification device and a phase splitter, wherein the intermediate product TM of the addition reaction is not separated but directly reacts with ammonia water in a kettle under the function of a copper-tungsten catalyst to obtain the target product terpene maleimide; the yield of the terpene maleimide is greater than 80% and the purity is greater than 90%; compared with the existing synthesis technology, the preparation method has the advantages of few side reactions, short technique process, capacity of continuous production, simple post treatment, less waste water emission, and the like.

Belonging to the technical field of drilling aids, the invention discloses a ceramsite proppant and a preparation method thereof. According to the invention, bauxite and purple grit mud are adopted asthe raw materials to prepare ceramsite, at the same time wollastonite is added to lower the firing temperature of the product, manganese ore powder and alumina in bauxite can form a solid solution, thereby improving the mechanical strength of ceramsite. The wear-resistant surface filler prepared according to the invention adopts isoprene as the raw material, is introduced with rigid alpha-terpinene, and is compounded with 2-ethylhexyl acrylate, thus ensuring no damage to the internally wrapped ceramsite and reducing the breakage rate of ceramsite. The method provided by the invention utilizesa silane coupling agent to modify the ceramisite surface, also adds acrylamide and the like for grafting, utilizes the contained sulfonic group and other hydrophilic groups to absorb water, enables agood swelling process of the obtained proppant after encountering water, thus increasing the spacing of propped fractures and improving the propping efficiency. The method provided by the invention solves the problems of easy breaking under impact and low propping efficiency of existing proppants.

The invention provides a polymerization inhibitor preventing the self-polymerization of TFE and not modified to macromolecule body by oxygen in a distillation step, particularly in a rectification step, of TFE. The invention provides a method of distilling tetrafluoroethylene in the presence of the polymerization inhibitor comprising a cyclohexadiene compound of the formula: R<1>-A-R<2>, wherein R<1> is a hydrocarbon group having 1 to 5 carbon atoms, R<2> is a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms, and A is a cyclohexadiene ring. The cyclohexadiene compound is preferably alpha-terpinene or gamma-terpinene.

The invention relates to a preparation method of a catalyst, and concretely relates to a preparation method of an alpha-terpinene high yield catalyst. The method comprises the following steps: 1, preparing silicotungstic acid; 2, immersing carbon nano-tubes in nitric acid with the concentration of 10-18% at normal temperature for 12h, washing, filtering, drying, dissolving silicotungstic acid in deionized water, uniformly stirring, adding the carbon nano-tubes into the obtained silicotungstic acid solution according to a mass ratio of silicotungstic acid to the carbon nano-tubes of 20-40:100, stirring for 4h, carrying out sealed ageing for 24-48h, drying, and roasting at 190DEG C for 3h to prepare carbon nano-tube supported silicotungstic acid. The carbon nano-tubes with large apertures are especially selected in the invention, and the aperture of the catalyst obtained after supporting the silicotungstic acid by the carbon nano-tubes is similar to the molecular effective path of alpha-terpinene, and the aperture is used to improve the product selectivity.

The invention discloses a lepidoptera insect insecticide synergist. Active ingredients of the lepidoptera insect insecticide synergist include iso-ascaridole, alpha-terpinene and germacrene B, a mass concentration ratio of the iso-ascaridole to the alpha-terpinene to the germacrene B in a solvent is 1-20:1-10:1-15, and the active ingredients can be extracted from dysphania ambrosioides or chenopodium aristatum. When the insecticide synergist is used for killing lepidoptera insects, a volume percentage concentration of the iso-ascaridol, the alpha-terpinene and the germacrene B in an insecticide is 1-15%. According to pharmacodynamic tests, insecticide efficacies can be remarkably improved by consumption of a small quantity of the lepidoptera insect insecticide synergist, and insecticide consumption can be reduced by 20-45% under equal control effects, so that insecticide consumption is effectively reduced, drug resistance of harmful organisms is overcome and weakened, environment pollution is reduced, and remarkable economic benefit and environment protection significances are achieved.

The invention provides a bactrocera dorsalis attractant. The attractant comprises a component A and a component B, wherein the component A is alpha-terpinene and/or myrcene and the component B is an organic solvent; the volume ratio of the component A to the component B is (20 to 3) to (70 to 80); the attractant can be stored in a slow releasing bottle or a sexual information disorientation diffusion device; volatile gas molecules in the slow releasing bottle or the sexual information disorientation diffusion device can be dispersed to the outer part of a carrier and attract bactrocera dorsalis to a sticky trap, so that the bactrocera dorsalis is stuck on the sticky trap. The bactrocera dorsalis attractant provided by the invention has stable chemical properties under a normal temperature and a normal pressure and is green and environmentally-friendly; furthermore, the attractant has the advantages of easiness of obtaining raw materials, simplicity in preparation, convenience in utilization, good attracting effect on the bactrocera dorsalis and long durable effect.

The invention discloses a method of preparing a fluorine-containing demoulding additive with an industrial side product terpinene. The method includes the steps of: 1) performing isomerization to alpha-pinene, dipentene and isoterpinolene in the terpinene to obtain alpha-terpinene; 2) performing an addition reaction to the main component, alpha-terpinene, in the terpinene and the terpinene, which is generated through continuous isomerization, with (methyl) alkenyl acid to generate a (methyl) alkenyl acid terpinene addition compound; 3) performing an epoxidation reaction with H2O2 to generate an epoxidized (methyl) alkenyl acid terpinene addition compound; 4) performing hydrolysis to obtain a bis-hydroxyl product, which is then subjected to a nucleophilic substitution reaction with a hexafluoropropylene oligomer to prepare a hexafluoropropylene oligomer substituted product; 5) performing an amidation reaction to the hexafluoropropylene oligomer substituted product with diethanol amine to prepare an amidation product; and 6) finally performing esterification to the amidation product with phosphoric acid to prepare an esterified product, which is the fluorine-containing demoulding additive.