190 results about "Beta-Pinene" patented technology

An attractant for the stem-eating pests is prepared from alpha-pinene (30-70 wt.%), beta-pinene (2-25), acetaldehyde (18-78) and solvent (2-20). Its advantages are low cost, broad spectrum and high effect.

The invention relates to a monochamus alternatus imago attractant which belongs to the technical field of pest control. The monochamus alternatus imago attractant contains the following components according to volume percent: 60-80 percent of turpentine oil, 16-24 percent of ethanol, 2-10 percent of phenethyl alcohol and 2-6 percent of terpilenol. The monochamus alternatus imago attractant contains the following ingredients according to volume percent: 24.64-32.86 percent of Alpha-pinene, 22.91-30.55 percent of Beta-pinene, 6.51-8.68 percent of 3-carene, 2.97-3.96 percent of Beta-phellandrene, 0.74-0.99 percent of terpinolene, 0.62-0.83 percent of laurene, 1.60-2.13 percent of others, 16-24 percent of ethanol, 2-10 percent of phenethyl alcohol and 2-6 percent of terpilenol. The monochamus alternatus imago attractant has remarkable attracting effect to both monochamus alternatus female worms and male worms, and stronger attracting effect to the male worms; and also has certain attracting effect to other coleopteran forestry pests. The invention has the advantages of high efficiency, environmental protection, simple and convenient preparation, low cost and good durability, can be used for prediction and control in monochamus alternatus forest with the control effect up to 53.59-67.30 percent and can effectively control the population density in the monochamus alternatus forest and restrains the spread and the extension of pine wood nematode disease.

This invention relates to the method of preparing shallow color terpene resin through positive ion polymerization, then preparing colorless terpene resin through catalytic hydrogenation. The preparation process is: makes the ª‡-pinene, beta-pinene or dipentene obtained from fat turpentine or rectified fat turpentine as raw material, and obtain shallow color terpene resin through positive ion polymerization with proper catalyst and temperature, then catalyzation hydrogenate the obtained terpene resin to get colorless terpene resin. The purpose of the invention is to control the polyreaction speed through controlling the activeness of the catalyst in tepene resin preparation by positive polymerization, finally obtain terpene resin of shallow color, high softening point and obtaining rate; use carbon as catalyst, hydrogenate terpene resin under mild condition to get colorless terpene resin.

The invention relates to a monochamus alternatus imago attractant and a trap thereof, which belong to the technical field of pest control. The volume percents of the components of the attractant are 60 to 80 percent of oil of turpentine, 16 to 24 percent of alcohol, 2 to 10 percent of phenethyl alcohol and 2 to 6 percent of terpineol. The volume percents of each component of the attractant are 24.64 to 32.86 percent of alpha-pinene, 22.91 to 30.55 percent of beta-pinene, 6.51 to 8.68 percent of 3-carene, 2.97 to 3.96 percent of beta-phellandrene, 0.74 to 0.99 percent of terpinolene, 0.62 to 0.83 percent of laurene, others for 1.60 to 2.13 percent, 16 to 24 percent of alcohol, 2 to 10 percent of phenethyl alcohol and 2 to 6 percent of terpineol. The trap consists of a cylindrical body (3), a funnel-shaped imago picking device (6) arranged at the lower part of the body (3), and an imago collecting bottle (7) connected with the lower end of the funnel-shaped imago picking device (6). The attractant has the advantages of convenient preparation, simple usage and long lasting period, and is a nuisanceless plant protection product; and the trap has the advantages of simple structure, low cost, long service life and good attracting effect, and can be wildly applied to the monochamus alternatus imago control in the field.

The invention relates to a method for preparing ambrotone. The method includes steps of 1, synthesizing 3-methyl-3-pentene-2-ketone; 2, carrying out diene addition for preparing ambrotone intermediates; 3, carrying out cyclization reaction to prepare the ambrotone. Diene addition for preparing the ambrotone intermediates is carried out without catalysts by the aid of high-temperature gas-phase reaction. The method has the advantages that the ambrotone is prepared from raw materials beta-pinene, butanone and acetaldehyde, other organic solvents are omitted, high-pollution and high-carcinogenesis substances such as benzene and toluene are omitted, accordingly, the cost can be lowered, the quality of products can be effectively improved, the application range of the products can be effectively expanded, and Diels-Alder condensation reaction is carried out by the aid of the high-temperature gas-phase reaction; the Diels-Alder condensation reaction is carried out by the aid of the high-temperature gas-phase reaction or atomized small-molecule water drop and gas phases, catalysts such as Lewis acid or proton acid are omitted at reaction steps, accordingly, the production cost can be lowered, technological equipment can be simplified, post-reaction treatment working procedures can be shortened, and the purpose of zero sewage discharge can be truly achieved.

The invention discloses an attractant of Semanotus bifasciatus, which comprises the components in weight ratio as follows: 1 Alpha-pinene, 2 to 5 Beta-pinene, 2 to 20 3-carene, 2 to 200 thujopsene and 2 to 5 limonene. The attractant of Semanotus bifasciatus has the advantages of simple preparation, high efficiency, environmental protection and low cost, and is mainly used for trapping of Semanotus bifasciatus as well as used for monitoring and control of Semanotus bifasciatus.

The invention provides a biological method for synthesizing alpha-pinene or beta-pinene from acetyl coenzyme A and a reconstitution cell capable of synthesizing the alpha-pinene or beta-pinene, wherein the acetyl coenzyme A is obtained from a simple starting material like glucose. The method for synthesizing the alpha-pinene or beta-pinene by adopting a biological process comprises the following steps: transferring acetyl coenzyme A acyltransferase, 3-hydroxy-3-methyl glutaryl coenzyme A synthase, hydroxymethyl glutaryl coenzyme A reductase, mevalonic acid kinase, mevalonic acid-5-phosphokinase, mevalonic acid-5-diphosphonic acid decarboxylase, isopentenylpyrophosphate isomerase, geranyldiphosphate synthetase and pinene synthase into an appropriate host cell by adopting metabolic engineering technology, and culturing the obtained reconstitution cell, so that the target product, namely alpha-pinene or beta-pinene can be obtained.

The invention provides electronic cigarette tar which comprises the following components by mass percentage: 90-99% of atomized liquid and 1-10% of coca cola essence, wherein the coca cola essence comprises the following components in parts by weight: 0.1-2 parts of alpha pinene, 0.1-2 parts of beta pinene, 1-30 parts of limonene, 1-10 parts of sweet orange oil, 1-20 parts of lemon oil, 0.1-0.5 parts of myrcene, 0.1-2 parts of cinnamic aldehyde, 0.1-5 parts of cinnamon oil, 0.1-10 parts of citral, 0.1-5 parts of geranial, 1-10 parts of geranyl acetate, 0.1-5 parts of sinensal, 1-10 parts of citronellol, 1-10 parts of geranyl propionate, 0.1-5 parts of eugenol allylguajacol, 0.1-2 parts of ethyl maltol, 0.1-3 parts of furanone, 0.1-5 parts of raspberry ketone, 1-25 parts of cinnamyl alcohol, 1-10 parts of cinnamyl acetate, 1-15 parts of vanillin, 1-15 parts of ethyl vanillin and 0.1-2 parts of coffee extract. The electronic cigarette tar with a coca cola taste is rich and plump in fragrance, and can achieve an effect similar to a pleasant feeling brought by drinking coca cola. The invention further provides a preparation method of the electronic cigarette tar. The method is simple and easy to operate, and is suitable for industrial production.

The invention relates to the field of chemical processing, particularly a method for producing alpha-pinene from turpentine. The method comprises the following steps: (1) feeding; (2) vacuumizing; (3) predistilling; (4) refluxing; (5) distilling off alpha-pinene; (6) carrying out repeated distillation; (7) distilling off beta-pinene; (8) distilling off bipentene; and (9) collecting heavy oil. The preparation method has the advantages of higher production stability and higher reaction safety, and can effectively separate the alpha-pinene, beta-pinene, bipentene and heavy oil from turpentine.

The present invention relates to an attractant for attracting dendroctonus valens leconte. Said attractant includes component A, component B, component C and component D, in which the component A is alpha-pinene, component B is beta-pinene, component C is 3-carene and component D is verbenone. Their weight mixing ratio is 1:2:10:0.0011.

To provide a β-pinene polymer excellent in heat resistance while having thermoplasticity, and further also having excellent strength, without impairing the inherent characteristics of small specific gravity and excellent transparency. A desired β-pinene polymer having a weight average molecular weight of 90,000 to 1,000,000 and a glass transition temperature of 80° C. or more was obtained by polymerizing β-pinene in the presence of a bifunctional vinyl compound.

The invention relates to a method for preparing terpene resin, which obtains the terpene resin by cation homo-polymerization or co-polymerization and taking Alpha-pinene, Beta-pinene, dipentene or pinene and the mixture of dipentene and styrene as raw materials and heteropoly acids or salts thereof as a catalyst. The Alpha-terpene resin and Beta-terpene resin prepared by the method both have the yield higher than 60 percent and the relative average molecular weight is around 800. Compared with the existing industrial production method, in which the catalyst is a metal halide, the method has the greatest advantages that: the product has light color; the traces of the residual catalyst in the terpene resin prepared do not cause catalyst poisoning in subsequent hydrogenation reaction, therebyhaving no or low erosion to equipment and low hydrogenation cost; the catalyst is easily to be separated and can be recycled for reusing, which lowers polymerization cost; the treatment after product ion is simple and does not generate a large amount of environment-polluting wastewater; the catalyst is easily to be prepared and is a fine-performance polymerization catalyst producing colorless terpene resin with low cost; and the prospect of industrial application is broad.

The invention relates to a preparation and application method for an environmentally friendly high-efficiency insect sticker. The insect sticker is mainly characterized in that: the insect sticker is prepared from a polybutene with a high molecular weight, a polybutene with a low molecular weight, additives and thickeners which are mixed. The additives comprise vegetable oil, starch, cellulose, bergmeal, etc. The thickeners comprise a petroleum resin, a beta-pinene resin, a cumar resin, etc. The adhesive has a capacity of adhering insects without environmental pollution. The insect sticker is suitable for preventing and controlling all forest and fruit tree insets migrating up and down along a trunk. The insect sticker can also be applied to prevent and control pests in plastic tents.

The invention discloses a novel botanical pesticide. In the invention, pure natural terpene compounds are taken effective pesticide ingredients. The novel botanical pesticide is prepared from the following raw materials by mass percent: 10-20% of alpha-pinene, 15-30% of beta-pinene, 20-30% of alpha-terpinene, 10-25% of iso-terpinene, 18-25% of limonene, and 4-8% of emulsifier. The invention further discloses a preparation method of the pesticide. The preparation method comprises the following steps: successively adding alpha-pinene, beta-pinene, alpha-terpinene, iso-terpinene and limonene in a reactor, and stirring to obtain a mixture A; then adding the emulsifier in the mixture A, and stirring to obtain the novel botanical pesticide which is the clear and transparent liquid. The novel botanical pesticide disclosed by the invention can rapidly and effectively kill various pests, has the advantages of no toxicity, no harm, no pollution and the like, and is an ideal pesticide.

The invention relates to terpene resin, which in detail relates to a method for preparing high molecular weight beta- firpene polymer. The invention employs catalyst comprising alpha- biimines nickel compounds (main catalyst) and methyl aluminoxanes (adjuvant catalyst) to catalyze beta- firpene monomer for polymerization. The method can prepare beta- firpene polymer with higher molecular weight at temperature 40 Deg. C and lower catalyst concentration (6.92 * 10-4 -3.47 *10-5 mol/l), and number average molecular weight is larger than 4000, with maximum being 7450.

The invention discloses a 6,8-methano tetrahydroquinazoline-2-amine schiff base iron ion fluorescence probe, and a preparation method and application thereof. A beta-pinene derivative 7,7-dimethyl-4-phenyl-5,6,7,8-tetrahydro-6,8-methano quinazoline-2-amine raw material is utilized to make condensation reaction with pyridine-2-formaldehyde and pyridine-4-formaldehyde, so that two novel 6,8-methanotetrahydroquinazoline-2-amine schiff base derivatives: 7,7-dimethyl-4-phenyl-N- (pyridine-2-methylene)-5,6,7,8-tetrahydro-6,8-methano quinazoline-2-amine (1) and 7,7-dimethyl-4-phenyl-N-(pyridine-4-methylene)-5,6,7,8-tetrahydro-6,8-methano quinazoline-2-amine (2) are obtained. The compounds (1) and (2) can be exclusively complexed with an iron ion so as to produce quenching of blue fluorescence, and thus can be used as fluorescence probes for detecting the iron ion, so as to have favorable practicability.

The invention relates to a method for continuously separating alpha-pinene and beta-pinene from turpentine. The method comprises the following steps: raw materials are subjected to a preheating treatment; a packed tower vacuum rectification process is carried out; alpha-pinene is collected with a reflux ratio of 8:1-10:1; a middle fraction is slowly collected with a reflux ratio of 20:1-30:1; beta-pinene is collected with a reflux ratio of 8:1-15:1; and when distillation is finished, while the rectification tower is not cooled and the vacuum state is not relieved, discharge is realized through the pressure difference between a tower kettle and a residual liquid tank. Therefore, intermittent distillation continuous operation is realized. With the method provided by the invention, the content of obtained alpha-pinene can be 98%, and the content of obtained beta-pinene can be 95%.

The invention discloses a method for discriminating the truth of fermented beef ham through detecting the compositions of a flavor substance by a gas chromatography-smelling method/a gas chromatography-mass spectrometry method. The method comprises the following steps: when a sample of a flavor substance of fermented beef ham to be detected is prepared through dynamic headspace purging and trapping, the suitable purging time of nitrogen gas is 30 minutes; when the flavor substance is detected by utilizing the gas chromatography-mass spectrometry method, the fermented beef ham contains fifteen flavor substance compositions: namely, 2-propylene-1-mercaptan, dimethyl benzene methanol, 3-methyl butyraldehyde, benzaldehyde, methyl-5-heptene-2-ketones, acetophenone, alpha-pinene, beta-pinene, styrene, dipentene, biphenyl, naphthalene, 2-methyl naphthalene, phenol, eucalyptus essential oil and anethole; and when the compositions of the smelling flavor substance are detected by the chromatography-smelling method, the fermented beef ham contains trimethyl butyraldehyde, benzaldehyde, dimethyl disulfide, naphthalene, alpha-pinene and benzothiazole. The method can be widely applied to quality detection and discrimination; and the process design, improvement and management of the fermented beef ham.

An attractant for the big or small red bookworm contains 3-carene, alcohol/atoleine, and alpha-pinene/beta-pinene. Its advantages are high attracting effect, low cost and no environmental pollution.

The invention provides application of terpene as an acantholyda posticalis attractant and the acantholyda posticalis attractant. One or more of R-(+)-alpha-pinene, S-(-)-alpha-pinene, S-(-)-beta-pinene, S-(+)-3-carene, S-(+)-limonene, S-(-)-limonene and myrcene is used as the acantholyda posticalis attractant. The mixed terpene attractant consists of the R-(+)-alpha-pinene, the S-(-)-alpha-pinene, the S-(-)-beta-pinene, the S-(+)-3-carene, the S-(+)-limonene, the S-(-)-limonene and the myrcene in a volume ratio of 10-60:5-45:3-30:10-60:2-15:0.3-3:2-15, and more preferably 30:15:10:30:5:1:5. The plant source attractant of a host volatile matter is used for attracting a large amount of acantholyda posticalis, so that the acantholyda posticalis are gathered and fixed by an adhesive paper board and then cleared and pests are controlled and killed; and the acantholyda posticalis attractant has the advantages of low cost, high efficiency, safety to people and livestock, capable of preventing medicament resistance of the pests and the like, and is an effective novel means of preventing and controlling the acantholyda posticalis and very suitable for the population monitoring and entrapment prevention and control of the acantholyda posticalis.

A process for preparing high-purity laurene from beta-pinene by thermal cracking includes such steps as mixing beta-pinene at a temp lower than 600 deg.C with non-reactive gas medium at 500-700 deg.C to obtain a gas mixture at 520-580 deg.C, cracking reaction at 500-600 deg.C under 100-5000 Pa for 0.01-1 S in a tubular cracking reactor, and condensing to obtain laurene.

To provide a rubber-reinforcing cord having good adhesion to rubber and exhibiting excellent fatigue resistance to stress deformation such as bending deformation, and a method for producing the same.

Disclosed a rubber-reinforcing carbon fiber cord in which a resin composition containing a styrenic thermoplastic elastomer resin modified with maleic acid or the like adheres to a carbon fiber bundle that the number of filaments is from 500 to 50,000. The styrenic thermoplastic elastomer resin is preferably a styrene-terminated ethylene-butylene copolymer resin, and the resin composition preferably contains at least one sticky resin of a hydrogenated terpene resin, a β-pinene resin and a terpene resin.

The invention relates to a production method of a terpene resin, belonging to the technical field of chemical material production. The invention is an improvement on the basis of the traditional synthesis method of a terpene resin. The production method comprises steps as follows: alpha-pinene or beta-pinene is used as the main raw material, a non-benzene solvent is used as a production solvent instead of methylbenzene or dimethylbenzene, and aluminum trichloride or an aluminum trichloride/antimony trichloride compound system is used as a catalyst; and polymerization is carried out at low temperature or normal temperature, and the product is washed with water to obtain the terpene resin. The solvent is cyclohexane and homologs thereof, and the like, which are saturated alkanes with bioinertness, and the mass ratio of the solvent to the raw material is (0.2-2.0):1; the reaction time is 1-15 hours; the catalyst accounts for 3-10% of the raw material; the reaction temperature range is -10-130 DEG C; and the reaction pressure is 0-0.3MPa (gage pressure). The production technique is simple, safe and sanitary; and the terpene resin synthesized by the method can be used in the field of gum confection bodying agents, hot-melt adhesives for food packaging, sanitary products and the like more safely.