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    • 11. 发明专利
    • Preparation of beta-mercaptopropionic acid
    • β-MERCAPTOPROPIONIC酸的制备
    • JPS5929656A
    • 1984-02-16
    • JP13855682
    • 1982-08-11
    • Nitto Chem Ind Co Ltd
    • NAKAHAMA TETSUROUTAKAYANAGI YASUYUKI
    • C07C323/52C07C67/00C07C313/00C07C319/14C07C323/60
    • PURPOSE: To prepare the titled compound useful as a synthetic raw material of organic chemicals such as pharmaceuticals, agricultural chemicals, polymer additives, etc., from inexpensive low-toxic raw materials, by reacting neutralized β- chloropropionic acid with a thiosuluric acid salt, and hydrolyzing the product in the presence of an acid.
      CONSTITUTION: β-Chloropropionic acid neutralized with sodium hydroxide, potassium carbonate, ammonia water, etc., is made to react with a thiosulfuric acid salt in an aqueous medium such as water, alcohol, tetrahydrofuran, etc. at a temperature between 60°C and the boiling point of the solvent for 30minW 5hr to obtain Bunte salt. The salt is hydrolyzed in the presence of an acid such as sulfuric acid, hydrochloric acid, etc. at a temperature between 60°C and the boiling point of the solvent for 15minW5hr to obtain the objective compound. Dithiodipropionic acid obtained as a by-product in the hydrolysis is reduced at need to obtain β-mercaptopropionic acid by using a metal such as zinc, tin, etc. in combination with an acid, etc.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:通过使中和的β-氯丙酸与硫代尿酸盐反应,制备用作廉价低毒原料的有机化学物质如药物,农药,聚合物添加剂等有机化合物原料的标题化合物, 并在酸存在下水解产物。 构成:使用氢氧化钠,碳酸钾,氨水等中和的β-氯丙酸与含水介质如水,醇,四氢呋喃等中的硫代硫酸盐在60℃的温度下反应。 C和溶剂的沸点30分钟-5小时,得到Bunte盐。 在酸,如硫酸,盐酸等存在下,在60℃和溶剂沸点15分钟-5小时之间,将盐水解,得到目标化合物。 在水解中作为副产物获得的二硫代二丙酸在需要时通过使用诸如锌,锡等金属与酸等组合而获得β-巯基丙酸而降低。
    • 12. 发明专利
    • Grouting method
    • 组合方法
    • JPS5925876A
    • 1984-02-09
    • JP13523382
    • 1982-08-04
    • Nitto Chem Ind Co Ltd
    • TAZAWA SHIYUNSUKETAKEUCHI KENJI
    • C09K17/00C09K17/02C09K17/06C09K17/08C09K17/12C09K17/42C09K17/46C09K17/48C09K17/50C09K103/00E02D3/12
    • PURPOSE: To prevent the deterioration of working environment due to the occurrence of much dust, by adding water, etc. to a mixture of lime with gypsum dihydrate, etc. in a specific proportion, mixing water with the resultant granulated hardening agent at a site of an execution work, mixing the resultant mixture with an aqueous solution of sodium silicate, and injecting the resultant grout into the ground.
      CONSTITUTION: (A) 100pts.wt. mixture of (i) lime with (ii) a gypsum selected from gypsum dihydrate, α-hemihydrate gypsum, β-hemihydrate gypsum and IItype anhydrous gypsum at (1:3)W(3:1) weight ratio between the components (i) and (ii) is mixed with preferably 5W30pts.wt. water and if necessary 0.05W 5pts.wt. setting retarder, e.g. sodium citrate, and 0.25W5.0pts.wt. dispersing agent, e.g. sodium lignin sulfonate, and 20W200pts.wt. aggregate, e.g. colloidal cement, and then granulated to give a hardening agent mixture having preferably ≤1mm particle diameter. Water is then added to the mixture to give (A) a solution, which is then mixed with (B) an aqueous solution of sodium citrate, preferably sodium citrate No.3. The resultant grout is then injected into the ground.
      USE: Suitable for strengthening poor subsoil in closed places, e.g. tunnels, shields, etc.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:为了防止由于灰尘的发生而导致的工作环境恶化,以特定比例向石灰与石膏二水合物等的混合物中加入水等,将水与得到的造粒硬化剂混合在一处 执行工作,将所得混合物与硅酸钠水溶液混合,并将所得的浆料注入地面。 规定:(A)100pts.wt。 (i)石灰与(ii)选自石膏二水合物,α-半水石膏,β-半水石膏和II型无水石膏的石膏与组分(i)之间的(1:3) - (3:1)重量比的混合物 和(ii)优选混合5-30pts.wt。 水,如果需要0.05-5pts.wt。 设定缓凝剂,例如 柠檬酸钠和0.25-5.0pts.wt。 分散剂,例如 木质素磺酸钠和20-200pts.wt。 聚集,例如。 胶体水泥,然后造粒,得到优选<= 1mm的硬化剂混合物。 粒径。 然后向混合物中加入水,得到(A)溶液,然后与(B)柠檬酸钠水溶液,优选柠檬酸钠3混合。 然后将所得的浆料注入地面。 用途:适用于在封闭的地方加强不良底土,例如 隧道,盾牌等
    • 13. 发明专利
    • Injection of silicate-based grout for stabilization of ground into ground
    • 注射用于将地面稳定化的基于硅酸盐的地层
    • JPS58204213A
    • 1983-11-28
    • JP8734082
    • 1982-05-25
    • Nitto Chem Ind Co Ltd
    • TAZAWA SHIYUNSUKETAKEUCHI KENJI
    • E02D3/12
    • E02D3/12
    • PURPOSE:To vary the gelling time of a grout to a quick or slow-setting type according to the conditions of the ground in an instantaneous manner by a method in which water is supplied to the second mixer while the grout is injected into the ground in such a way as to vary the concentration of carbonic acid water in the mixer. CONSTITUTION:A high pressure of carbon dioside gas and water are supplied to the first mixer a carbon dioxide gas tank 1 (liquefied carbon dioxide gas bomb usually) and a water storage tank 8 to produce a carbonic acid water. The carbonic acid water produced in the first mixer 6 and a sodium silicate aqueous solution from a sodium silicate aqueous solution storage tank 13 are supplied to the second mixer 19, where the carbonic acid water and the sodium silicate aqueous solution are mixed together to become a grout. The grout is injected into the ground 21. While the grout is injected, water is supplied from the water storage tank 16 to the second mixer 19 to vary the concentration of carbonic acid water in the mixer 19, whereby permitting the gelling time of the grout to be adjusted.
    • 目的:通过在水泥浆注入地面时向第二混合器供水的方法,通过瞬时方式根据地面条件,将灌浆胶凝时间改变为快速或慢速定型, 这样可以改变混合器中碳酸水的浓度。 构成:将二氧化碳气体和水的高压向第一混合器供给二氧化碳气体罐1(液化二氧化碳气体燃料通常)和储水箱8以产生碳酸水。 在第一混合器6中产生的碳酸水和来自硅酸钠水溶液储罐13的硅酸钠水溶液被供给到第二混合器19中,其中碳酸水和硅酸钠水溶液混合在一起成为 灌浆 将浆料注入地面21.注入水泥浆时,将水从储水箱16供给到第二混合器19,以改变混合器19中碳酸水的浓度,从而允许水泥浆的胶凝时间 要调整
    • 14. 发明专利
    • Preparation of bacterial cell having high nitrilase activity
    • 具有高硝酸盐活性的细菌细胞的制备
    • JPS5763080A
    • 1982-04-16
    • JP13512080
    • 1980-09-30
    • Mitsubishi Rayon Co LtdNitto Chem Ind Co Ltd
    • WATANABE ICHIROUENOMOTO KANEHIKOOGAWA YASUO
    • C12N1/38C12N9/78C12N9/88C12P13/02
    • C12P13/02C12N9/78Y10S435/843Y10S435/872
    • PURPOSE: To obtain a bacterium having an ability to produce nitrilase in high activity and yield, by cultivating a bacterium having the ability to produce the nitrilase in a culture medium containing a water-soluble iron compound.
      CONSTITUTION: A bacterium, e.g. a strain N-771 (FERM-P No.4445) of the genus Corynebacterium or a strain N-775 (FERM-P No.4447) of the genus Nocardia, having the ability to produce nitrilase is cultivated in a culture medium containing a water-soluble iron compound selected from an inorganic or organic iron salt or an organic iron complex, preferably an organic iron complex of citric acid or ethylenediaminetetraacetic acid, in a concentration of usually 0.2W500mg/l, preferably 1W 100mg/l, expressed in terms of iron ions.
      COPYRIGHT: (C)1982,JPO&Japio
    • 目的:通过在含有水溶性铁化合物的培养基中培养能够产生腈水解酶的细菌,获得具有高活性和产率的腈水解酶的能力的细菌。 构成:细菌,例如 具有产生腈水解酶能力的棒状杆菌属菌株N-771(FERM-P No.4445)或具有产生腈水解酶能力的诺卡氏菌属菌株N-775(FERM-P No.4447)培养在含有 选自无机或有机铁盐或有机铁配合物的水溶性铁化合物,优选柠檬酸或乙二胺四乙酸的有机铁络合物,其浓度通常为0.2-500mg / l,优选为1〜100mg / l,表达 以铁离子计。
    • 16. 发明专利
    • Optical resolution of n-carbamoyl-phenylalanine
    • N-羧基苯胺的光学解析
    • JPS61122261A
    • 1986-06-10
    • JP24317884
    • 1984-11-20
    • Nitto Chem Ind Co Ltd
    • NOHIRA HIROYUKISAWADA KENJI
    • C07B57/00C07B31/00C07C67/00C07C275/24
    • PURPOSE: To produce the titled compound useful as an amino acid transfusion, etc., easily on an industrial scale, by reacting (±)-N-carbamoyl-phenylalanine with an optically active compound, and separating the objective compound taking advantage of the solubility difference of the optical isomers to a solvent.
      CONSTITUTION: (±)-N-carbamoyl-phenylalanine (e.g. the compound of formula) is made to react with an optically active N-hydroxyethyl-1-methylbenzylamine (abbreviated as HPA), and is optically resolved taking advantage of the solubility difference to a solvent. For example, an optically active HPA and a solvent are added to the compound of formula, dissolved by heating to obtain a supersaturated solution, and cooled to room temperature. If necessary, a small amount of the seed of a hardly soluble complex of the optically active compound of formula and HPA is inoculated to the super-saturated solution. A hardly soluble salt can be separated easily by this process.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:通过使(+或 - ) - N-氨基甲酰基 - 苯丙氨酸与光学活性化合物反应,以工业规模容易地制备用作氨基酸输入等的标题化合物,并利用 光学异构体与溶剂的溶解度差异。 构成:使(+或 - ) - N-氨基甲酰基 - 苯丙氨酸(如式的化合物)与光学活性N-羟乙基-1-甲基苄胺(简写为HPA)反应,并利用溶解度进行光学拆分 与溶剂的差异。 例如,通过加热将光学活性的HPA和溶剂加入到式的化合物中,得到过饱和溶液,并冷却至室温。 如果需要,将少量式和光学活性化合物和HPA的难溶性复合物的种子接种到超饱和溶液中。 通过该方法可以容易地分离难溶的盐。
    • 17. 发明专利
    • Production of acrylamide polymer
    • 丙烯酰胺聚合物的生产
    • JPS61115495A
    • 1986-06-03
    • JP23510684
    • 1984-11-09
    • Nitto Chem Ind Co Ltd
    • OGAWA YASUO
    • C12P13/02C08F20/58
    • PURPOSE: To obtain the titled polymer useful as a flocculating agent, thickening agent, etc., having improved flocculating performances, solubility, etc., by hydrating acrylonitrile by the action of a bacterium capable of hydrating nitrile to give acrylamide, treating it with active carbon, and polymerizing it.
      CONSTITUTION: (A) A bacterium such as strain N-771(FERM P-4445), etc. belonging to the genus Corynebacterium is cultivated, and incorporated with sodium chloride injection to give suspension having 0.5W10wt% mold concentration. (B) 0.5W10wt% acrylonitrile is reacted with the suspension at 7W9pH at ice point W15°C for 0.5W10hrs, then, the active carbon is suspended in the aqueous reaction solution and stirred, or the aqueous reaction solution is fed to the active carbon layer, made to flow out, so that it is treated with the active carbon. It is directly used or after it is adjusted to preferably 5W40wt% acrylamide concentration, and it is polymerized at 0W100°C by the use of a radical initiator (e.g., hydrogen peroxide, etc.), to give the aimed polymer.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:通过使丙烯腈水合腈的作用使丙烯腈水合,得到丙烯酰胺,得到具有改善的絮凝性能,溶解性等的可用作絮凝剂,增稠剂等的标题聚合物,用活性物质 碳,并使其聚合。 构成:(A)培养属于棒杆菌属的菌株N-771(FERM P-4445)等细菌,并加入氯化钠注射液,得到浓度为0.5〜10重量%的悬浮液。 (B)将0.5-10重量%的丙烯腈在7-9pH的冰点-15℃下与悬浮液反应0.5-10小时,然后将活性炭悬浮在反应水溶液中并搅拌,或将反应溶液 进料到活性炭层,使其流出,使其用活性炭处理。 直接使用或调整为优选5-40重量%的丙烯酰胺浓度后,通过使用自由基引发剂(例如过氧化氢等)在0-100℃下聚合,得到目的物 聚合物。
    • 19. 发明专利
    • Soil conditioning
    • 土壤调节
    • JPS6142588A
    • 1986-03-01
    • JP16388484
    • 1984-08-06
    • Nitto Chem Ind Co Ltd
    • HONGO AKIRAKON KAZUHIKO
    • A01G1/00C09K17/00C09K17/28C09K101/00
    • PURPOSE: To increase the nitrogen-supplying potentiality of soil and to condition the soil for the growth of plants, by treating it with a water-containing urea- formaldehyde condensate obtained by reacting urea with formalin in a specified molar ratio.
      CONSTITUTION: Urea is reacted with formalin in a molar ratio of 1:2W2.5 to produce an aqueous solution of a urea-formaldehyde precondensate having a degree of condensation which allows dissolution in water. Then urea is added to this solution in an amount to satisfy the condition, μ:F=1:0.9W1.2 (where μ is the total mol of urea used; F is the mol of formaldehyde used), and is allowed to react until causing opacification. A curing agent (e.g. phosphoric acid) is added to this reaction liquid and is reacted while dehydrating, thus giving a water-containing urea-formaldehyde condensate having a total methylol content of 0.1W 10wt% and leaching with hot water of 10wt% or less. This condensate is used for conditioning soil.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:为了提高土壤的供氮能力,并对土壤进行植物生长调节,通过用特定摩尔比的脲与福尔马林反应获得的含水脲脲缩合物进行处理。 构成:尿素与福尔马林反应,摩尔比为1:2-2.5,以产生具有允许溶解在水中的缩合度的脲 - 甲醛预缩合物的水溶液。 然后以满足条件的量将该尿素加入到该溶液中,μ= F = 1:0.9-1.2(其中μ为所用尿素的总摩尔数,F为所用甲醛的摩尔数),并允许反应直到 造成不透明。 将该固化剂(例如磷酸)加入到该反应液中,并进行脱水反应,得到总羟甲基含量为0.1-10重量%的含水尿素 - 甲醛缩合物,并用10重量%以下的热水浸出 。 这种冷凝水用于调理土壤。
    • 20. 发明专利
    • Production of dimethylamine
    • 二甲胺的生产
    • JPS59210050A
    • 1984-11-28
    • JP8276883
    • 1983-05-13
    • Nitto Chem Ind Co Ltd
    • ASHINA YOSHIROUFUJITA TAKESHIFUKATSU MICHIOYAGI JIYUNSUKE
    • C07B61/00B01J21/00B01J29/18C07C67/00C07C209/00C07C209/16C07C211/04
    • B01J29/18
    • PURPOSE: To obtain the titled compound useful as a synthetic intermediate of pharmaceuticals, etc., in high selectivity, by the catalytic vapor-phase reaction of methanol and ammonia using a mordenite catalyst containing Na, K and Li at a specific low level.
      CONSTITUTION: Dimethylamine is produced in high selectivity, by the vapor- phase reaction of methanol with ammonia, mixture of methanol and methylamine with ammonia, or a methylamine mixture with ammonia, using a mordenite catalyst containing 0.2W3.9g of Na and ≤0.20mol of Ka+K+Li per 100g of the catalyst. The catalytic activity and the amine-selectivity can be improved by carrying out the reaction at 270W360°C, N/C ratio of 1.0W5.0, an SV value of 800W4,000, and a methanol conversion of 80W96%.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:通过使用含有Na,K和Li的丝光沸石催化剂在特定的低水平下,通过甲醇和氨的催化气相反应,以高选择性获得用作药物等的合成中间体的标题化合物。 构成:使用含有0.2-3.9g Na和<= 0.20的丝光沸石催化剂,通过甲醇与氨,甲醇和甲胺的混合物与氨或甲胺混合物与氨的气相反应以高选择性生产二甲胺。 摩尔Ka + K + Li每100g催化剂。 通过在270-360℃,N / C比为1.0-5.0,SV值为800-4,000,甲醇转化率为80-96%的条件下进行反应可以提高催化活性和胺选择性, 。