41results about How to "Industrial value" patented technology

Provided is a fiber-reinforced thermoplastic resin molded article, which contains reinforcing fibers having a given flattened cross-sectional profile, in which the fiber length distribution of the reinforcing fibers is shifted on the side of long fibers, and which is excellent in mechanical strength, heat resistance, dimensional accuracy such as warpage resistance, and surface appearance.

The invention provides a keyboard device comprising a plurality of key structures, an electronic paper display element and a light-emitting module. The electronic paper display element is arranged below a plurality of key structures and used for displaying a plurality of key symbols corresponding to the plurality of key structures. The light-emitting module is arranged on the electronic paper display element and provides light beams to the electronic paper display element to illuminate the plurality of key symbols.

The invention relates to a preparation method of 4-amino-benzoyl formic-N-(4-amino-benzoyl formic) amine, which belongs to the technical field of the compound preparation method. The invention particularly relates to a preparation method of an organic pigment intermediate, which is characterized by comprising the following steps that: Para Amino Benzamide and paranitrobenzoyl chloride have condensation reaction in solvent under the condition that alkali carbonate exists to obtain 4-nitrobenzoyl-N-(4-nitrobenzoyl)amine; the 4-nitrobenzoyl-N-(4-nitrobenzoyl)amine is catalyzed and reduced by hydrazine hydrate in the solvent to obtain 4-amino-benzoyl formic-N-(4-amino-benzoyl formic) amine. So far, the preparation method not only improves the purity of the product to more than 99.7 percent, but also improves the total yield to more than 93.2 percent, and improves the quality and the yield of the product. During the synthesis process, the productivity of three wastes is reduced to less than 2 tons of waste water every one ton of product, so the process has industrialized value.

The present invention provides a method for communicating with an object under test and a system for applying the method. The method of communicating with the object under test includes: providing a command signal to the object under test through the processing unit of the system, and waiting to receive a response signal output by the object under test after receiving the command signal, if the processing unit waits for a preset waiting time length When the response signal output by the object under test is not received, the command signal is provided to the object under test again, and the preset waiting time length is adjusted; wherein, the adjusted preset waiting time length is the same as that of providing the command signal to the object under test The number of times provided has an exponential relationship. The invention can reduce the probability of re-communication and communication failure rate, and shorten the communication time.

The invention discloses dioxime ionone as well as a preparation method and application thereof, and belongs to the technical field of preparation of pharmaceutical and chemical intermediate products. Dioxime ionone is characterized by being prepared by the steps of oxidizing beta-ionone through oxygen with presence of a catalyst, and implementing an oximation reaction with hydroxylamine hydrochloride to obtain dioxime ionone. The prepared dioxime ionone disclosed by the invention is shown in formula I in the specification, and contains oximido and multi-conjugated double bonds as well as an unique Zhi-ring structure; the dioxime ionone can be further hydrolyzed with presence of an acid to prepare 4-oxo-beta-ionone which is relatively high in purity; therefore, the dioxime ionone has a quite high industrial value.

The invention relates to a method for producing the rice distributing cylinder, wherein it comprises that: a, the upper end of cylinder has one connecting upper edge, with fixing cut; b, the lower end of cylinder has connecting low edge matched with the upper edge, with fixing button matched with fixing cut. The invention has simple structure while the elements can be sheathed to form different capacity.

The present invention belongs to the technical field of organic chemistry, and specifically relates to a method for preparing rosuvastatin sodium. The method of the invention comprises: reducing 4-p-fluorophenyl-6-isopropyl-2-(N-methyl-methylsulfonylamino)pyrimidine-5-carboxylic acid (VII) in the presence of a borohydride, an alkyl-substituted chlorosilane and an assistance in an organic solvent to prepare 4-p-fluorophenyl-5-hydroxymethyl-6-isopropyl-2-(N-methyl-methylsulfonylamino) pyrimidine (VIII); then performing a reaction of the compound VIII with a triphenyl phosphonium salt in an organic solvent to prepare a ((4-p-fluorophenyl-6-isopropyl-2-(N-methyl-methylsulfonylamino)-5-pyridyl)-methyl)triphenyl phosphonium salt (IX); performing a stereoselective Michael addition reaction of (S)-trans-4,5-dihydroxy-pent-2-olefine acid ester (II) with furfural (III) to prepare a 2-((4R,6S)-2-(furan-2-yl)-6-hydroxymethyl-1,3-dioxane-4-yl)acetate (IV); oxidizing the compound IV to prepare a 2-((4R,6S)-2-(furan-2-yl)-6-formacyl-1,3-dioxane-4-yl)acetate (V); performing an olefination reaction of the compound V with the (4-p-fluorophenyl-6-isopropyl-2-(N-methyl-methylsulfonylamino)pyrimid-5-yl)-methyl triphenyl substituted phosphonium salt (IX) or phosphate to prepare 2-((4R,6S)-6-(trans-2-(4-p-fluorophenyl-6-isopropyl-2-(N-methyl-methylsulfonylamino)pyrimid-5-yl)vinyl)-2-(furan-2-yl)-1,3-dioxane-4-yl)acetate (VI); and performing deprotection and sodium salt formation of compound VI to prepare rosuvastatin sodium (I). The method has easily obtainable raw materials, and is simple to operate and suitable for industrial productions.