11 results about "Piperonyl butoxide" patented technology

The invention discloses piperonyl butoxide and a preparation method thereof. The preparation method comprises the following steps: carrying out mixing reaction on dihydrosassafras oil, acetyl chloride and trioxymethylene in the presence of concentrated hydrochloric acid; after the reaction is finished, chloromethyl material reaction liquid is obtained; mixing and reacting the chloromethyl material reaction liquid with sodium hydroxide and diethylene glycol monobutyl ether to obtain a product containing piperonyl butoxide. According to the preparation method of piperonyl butoxide, the dihydrosassafras oil, acetyl chloride and trioxymethylene are subjected to chloromethylation reaction in the presence of a small amount of concentrated hydrochloric acid, so that the use of a large amount of concentrated hydrochloric acid in the traditional process is avoided, and the problem of waste acid generated in the chloromethylation reaction process is solved; and meanwhile, the content of piperonyl butoxide in the product can be increased, and the content of piperonyl butoxide is ensured to be greater than 98%.

The present application relates to the technical field of nematicides for pine wood nematode disease, and specifically discloses a highly efficient compound nematicide for pine wood nematode disease and a preparation method thereof. The components of the compound nematicide include nematicides and adjuvants, the adjuvants include synergists, surfactants, solvents and rejuvenation agents, the nematicide is a mixture of emamectin benzoate and rudol, the synergist is piperonyl butoxide, the solvent includes DMF and chloride solution, and the rejuvenation agent includes amino oligosaccharide aqueous solution; in the compound nematicide, the mass fraction of rudol is 10-20%, the mass fraction of emamectin benzoate is 0.5-3.5%, and the mass fraction of the rejuvenation agent is 2-8%. The compound nematicide of the present application can also have a significant killing effect on nematodes that have developed emamectin benzoate resistance, and the selection of rejuvenation agents reduces the nematode's gnawing on pine trees, promotes the repair of internal damage to pine trees, and fully realizes the treatment of pine trees infected with pine wood nematode disease.

The present invention relates to a composition comprising piperonyl butoxide (PBO) in a concentration of 94 to 99.9% by weight, dipiperidinyl methane (DPM) in a concentration of 0.01 to 1% by weight and dipiperidinyl ether (DPE) in a concentration of 0 to 0.1% by weight, relative to the total weight of the composition, and a distillation process for obtaining the composition, the composition comprising piperonyl butoxide (PBO) in a concentration of from 94 to 99.9% by weight, dipiperidinyl methane (DPM) in a concentration of from 0.01 to 1% by weight, and dipiperidinyl ether (DPE) in a concentration of from 0 to 0.1% by weight.

The invention relates to a sanitary insecticide composition containing pyriproxyfen and application of the sanitary insecticide composition, and belongs to the technical field of insecticides. The invention discloses a sanitary insecticide composition containing pyriproxyfen. The sanitary insecticide composition is prepared from the following raw materials: anise oil, piperonyl butoxide, methyleugenol, matrine derivatives, cyfluthrin and pyriproxyfen. The anise oil can prevent evaporation of components of the insecticide and is matched with piperonyl butoxide, so that the pesticide effect duration of the insecticide is prolonged; methyeugenol destroys information transmission and mating of pests and has the effects of repelling, food refusal and growth inhibition at the same time, the matrine derivative enables the pests to die through food refusal activity, in addition, cyfluthrin and pyriproxyfen are matched to influence metamorphism and reproduction of the pests, and the killing power of the insecticide is further enhanced. According to the invention, the purpose of killing pests is achieved by prolonging the drug property of the insecticide and preventing and killing the pests from multiple aspects of information transmission, mating, feeding and stage growth of the pests.

The invention discloses a flavonoid fluorescent dye, a supramolecular fluorescent probe, a preparation method of the supramolecular fluorescent probe and a pyriproxyfen detection method. The probe is constructed by spontaneously assembling the albumin derivative and the flavonoid fluorescent dye in a buffer solution. The detection mechanism is shown as follows: the flavonoid dye presents characteristic red fluorescence in a free state, and obvious fluorescence blue shift is triggered after the flavonoid dye is combined with albumin. When pyriproxyfen is introduced into the system, hydrophobic molecules enter an albumin hydrophobic cavity in a competitive binding manner, so that dye molecules have a replacement effect. In the process, along with the bidirectional response of a fluorescence signal, namely, the yellow fluorescence intensity and the pyriproxyfen concentration are in negative correlation, and the reconstructed dye aggregation state triggers the enhancement of a green fluorescence channel signal, so that the quantitative conversion of the fluorescence chroma of the solution from yellow to green is finally realized. Based on the ratio-type fluorescence signal, the probe system has an obvious colorimetric effect when being used for detecting pyriproxyfen in environment, food and the like, and the color change can be directly observed by naked eyes.

The present application relates to the technical field of pesticides, and aims to solve the problem of how to improve the insecticidal effect of high-efficiency cypermethrin on aphids resistant to the pesticide, and discloses an active oxygen responsive nano-piperonyl butoxide synergist compound and application thereof in synergizing the control effect of high-efficiency cypermethrin on aphids. The active oxygen responsive nano-piperonyl butoxide synergist compound is composed of PLGA-TK-PEG and piperonyl butoxide loaded therein. Compared with free piperonyl butoxide, the active oxygen responsive nano-piperonyl butoxide synergist has the following advantages: rapid-acting property is enhanced, stability is greatly improved, can be released in response to ROS, has super-high resistance reversal capability, and the synergistic effect with high-efficiency cypermethrin is up to 54.22, and the 7-day control effect on resistant aphids is increased from 61.38% of free PBO treatment to 84.06%. Moreover, the active oxygen responsive nano-piperonyl butoxide synergist can be targetedly delivered, the carrier is biodegradable, PBO is released on demand, and the use amount and environmental residue can be reduced.

The present invention relates to a composition comprising piperonyl butoxide (PBO) in a weight concentration ranging from 94 to 99.9% by weight, dipiperonyl methane (DPM) in a weight concentration ranging from 0.01 to 1% by weight, and dipiperonyl ether (DPE) in a weight concentration ranging from 0 to 0.1% by weight, based on the total weight of the composition, and a distillation method for obtaining the same.

The invention discloses an anti-aging long-acting insect-resistant polyethylene composite material and a preparation method thereof, and belongs to the field of plastic processing. The anti-aging long-acting insect-resistant polyethylene composite material is prepared by the following steps: preparing modified nano titanium dioxide from a KH550 silane coupling agent and rutile type nano titanium dioxide; high-density polyethylene and maleic anhydride are used as raw materials to prepare polyethylene grafted maleic anhydride, the polyethylene grafted maleic anhydride is compounded with a compound antioxidant, an anti-ultraviolet agent, cis-cypermethrin, piperonyl butoxide, linear low-density polyethylene and high-density polyethylene, and the anti-aging long-acting insect-resistant polyethylene composite material is prepared by adopting a melt blending and extrusion molding method. The obtained anti-aging long-acting insect-resistant polyethylene composite material has excellent mechanical properties, aging resistance and insect resistance, the mechanical properties are kept good after aging, and certain insect resistance is still kept.

The present invention relates to the field of adjuvant compositions. More specifically, the invention focuses on enhancing the performance of adjuvants by improving their formulation and interaction with active substances to increase the efficacy of the plant protection products. An adjuvant composition, characterized in that it comprises from 10% to 50% w / v of piperonyl butoxide, from 0% to 10% w / v of tristyrylphenol ethoxylated, from 0% to 10% w / v of ethoxylated castor oil, from 0% to 75% w / v of methylated soybean oil, and from 0% to 20% w / v of polyalkylene modified heptamethyltrisiloxane. The present invention relates also to an adjuvant and use of such an adjuvant composition or adjuvant.

The application discloses an anti-aging long-acting insect-resistant polyethylene composite material and a preparation method thereof, and belongs to the field of plastic processing. The anti-aging long-acting insect-resistant polyethylene composite material is prepared from modified nano titanium dioxide which is prepared from KH550 silane coupling agent and rutile type nano titanium dioxide; polyethylene grafted maleic anhydride is prepared from high-density polyethylene and maleic anhydride as raw materials, and is compounded with compounded antioxidants, anti-ultraviolet agents, cis-cypermethrin, piperonyl butoxide, linear low-density polyethylene and high-density polyethylene, and the anti-aging long-acting insect-resistant polyethylene composite material is prepared by adopting a melt blending and extrusion molding method. The obtained anti-aging long-acting insect-resistant polyethylene composite material has excellent mechanical properties, anti-aging properties and insect-resistant properties, the mechanical properties are well maintained after aging, and the anti-aging long-acting insect-resistant polyethylene composite material still has certain insect-resistant properties.

The present invention relates to a method of combating and / or controlling a pest selected from the Noctuidae family and the Pieridae family, which comprises applying to said pest, to a locus of said pest, to a plant susceptible to attack by said pest, or to a plant propagation material susceptible to attack by said pest, a pesticidal composition comprising isocycloseram as active ingredient A, and piperonyl butoxide as active ingredient B.