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    • 1. 发明专利
    • Production of polyalkylene ether polyol
    • 聚亚烷基醚多元醇的生产
    • JPS61123630A
    • 1986-06-11
    • JP24434684
    • 1984-11-21
    • Asahi Chem Ind Co Ltd
    • TONOMURA SHOICHIROAOSHIMA ATSUSHIFUKUI HIROYUKI
    • C08G65/34
    • PURPOSE: To obtain the titled polyol having terminal hydroxyl group and low corrosiveness, economically in one step, in a manner to enable the recycling of heteropolyacid, by the dehydrative polycondensation of a polyhydric alcohol in the presence of a heteropolyacid.
      CONSTITUTION: The objective polyol can be produced by the dehydrative polycondensation of an alcohol having ≥2 hydroxyl groups in one molecule, in the presence of a heteropolyacid and/or its salt coordinated with or containing ≤15mol of water per 1mol of the acid. The case that the alcohol is 1,4- butanediol and the catalyst is free heteropolyacid is excluded from the present process.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:通过多元醇在杂多酸的存在下的脱水缩聚,得到具有末端羟基和低腐蚀性的标题多羟基化合物,经济地一步法,使得能够回收杂多酸。 构成:目标多元醇可以通过在一分子中具有> = 2个羟基的醇在杂多酸和/或其盐与1mol酸配位或含有<= 15mol水的存在下进行脱水缩聚来制备 。 醇为1,4-丁二醇和催化剂为游离杂多酸的情况不包括在本方法之外。
    • 2. 发明专利
    • Improved method for preparation of methyl methacrylate or methyl acrylate
    • 改进的甲基丙烯酸甲酯或丙烯酸甲酯的制备方法
    • JPS58198442A
    • 1983-11-18
    • JP8008682
    • 1982-05-14
    • Asahi Chem Ind Co Ltd
    • YAMAMATSU SETSUOSUZUKI YOSHIOAOSHIMA ATSUSHI
    • C07C67/39B01J23/00B01J23/44B01J23/56C07B61/00C07C69/54
    • Y02P20/52
    • PURPOSE: To prepare the titled compound in high rate of reaction and high conversion even at a high charging concentration of the raw materials, by reacting (meth)acrolein with methanol and molecular oxygen in the presence of Pd catalyst while removing the water from the reaction system.
      CONSTITUTION: Methyl methacrylate or methyl acrylate is prepared by reacting methacrolein or acrolein with methanol and molecular oxygen in the presence of a Pd-containing catalyst at 30W90°C under pressure of 1W20kg/cm
      2 . In the above process, the reaction is carried out while removing the water produced by the reaction and the water supplied to the reaction system together with the raw materials, and keeping the water content in the reaction system to preferably ≤3.5wt% throughout the whole reaction period. The removal of water is performed, e.g. by containing the reaction materials with inorganic or organic dehydrant in or out of the reaction system, or by using a proper azeotropic agent for dehydration, etc.
      COPYRIGHT: (C)1983,JPO&Japio
    • 目的:即使在原料的高充电浓度下,通过使(甲基)丙烯醛与甲醇和分子氧在Pd催化剂的存在下反应,同时从反应中除去水,即可以高反应速率和高转化率制备标题化合物 系统。 构成:甲基丙烯酸甲酯或丙烯酸甲酯是通过使甲基丙烯醛或丙烯醛与甲醇和分子氧在含有Pd的催化剂存在下在30-90℃,1-20kg / cm 2的压力下进行反应来制备的。 在上述方法中,反应是在将反应产生的水与原料一起供给到反应体系中的水一边除去的同时,将反应体系中的水含量优选<3.5重量% 整个反应期。 进行水的除去。 通过将反应物质与无机或有机脱水剂混合在反应体系中或出来,或通过使用合适的脱水剂共沸剂等进行。
    • 3. 发明专利
    • Purification of polyether
    • 聚醚的纯化
    • JPS61115934A
    • 1986-06-03
    • JP23749184
    • 1984-11-13
    • Asahi Chem Ind Co Ltd
    • TONOMURA SHOICHIROAOSHIMA ATSUSHIYAMAMATSU SETSUO
    • C08G65/20C08G65/02C08G65/30
    • PURPOSE: To purify a crude polyether obtained by using a heteropolyacid as a polymerization catalyst in good efficiency, by adding a 15 C or lower hydrocarbon to the polyether to separate the heteropolyacid by precipitation and distilling the contained tetrahydrofuran.
      CONSTITUTION: An alkylene oxide, tetrahydrofuran (THF) or the like is polymerized by using a heteropolyacid (e.g., phosphomolybdic acid) as a polymerization catalyst to produce a mixture of THF with a polyether having polyoxytetramethylene groups. To this mixture a 15 C or lower (halo) hydrocarbon solvent of a b.p. higher than that of THF and does not form an azeotrope with THF (e.g., octane) is added to separate the heteropolyacid by precipitation. The THF is recovered by distillation and a liquid containing a polyether is separated from the major part of the solvent. The residual solvent is removed by distillation to obtain a purified polyether.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:为了纯化通过以高效率使用杂多酸作为聚合催化剂获得的粗聚醚,通过向聚醚中加入15℃或更低的烃以通过沉淀分离杂多酸并蒸馏所含的四氢呋喃。 构成:通过使用杂多酸(例如磷钼酸)作为聚合催化剂使烯化氧,四氢呋喃(THF)等聚合,以产生THF与具有聚氧四亚甲基的聚醚的混合物。 向该混合物中加入沸点为15℃或更低(卤代)的烃溶剂 高于THF并且不与THF形成共沸物(例如辛烷)以通过沉淀分离杂多酸。 通过蒸馏回收THF,并将含有聚醚的液体与溶剂的主要部分分离。 通过蒸馏除去残余溶剂,得到纯化的聚醚。
    • 4. 发明专利
    • Continuous pressure stretching device for high molecular material
    • 用于高分子材料的连续压力拉伸装置
    • JPS60193632A
    • 1985-10-02
    • JP4933884
    • 1984-03-16
    • Asahi Chem Ind Co Ltd
    • AOSHIMA ATSUSHIKOMATSU TAMIKUNIENOKI SACHIO
    • B29C55/00B29C55/06D02J1/22
    • B29C55/005B29C55/06B29K2059/00D02J1/22
    • PURPOSE:To stretch a high molecular material under pressure continuously while inhibiting the generation of voids by forming the titled device in size, in which a pressure fluid in a pressure-resisting vessel is not leaked out substantially from a clearance shaped between the titled device and a long-sized body, though the long-sized body smoothly passes through an extracting port and a feed opening. CONSTITUTION:With the device, a follow-up pressure member 4 with a feed opening 3 and a follow-up pressure member 6 with an extracting port 5 are mounted at both ends, it is formed by a cylindrical vessel 9, on the feed opening side thereof a fluid introducing port 7 is formed and on the extracting port side thereof a fluid discharge port 8 is shaped, and the inside of the cylindrical vessel 9 is filled with a pressure fluid C. A long-sized body A is passed smoothly through the feed opening 3 and the extracting port 5, but a fluid is flowed out from clearances among the openings and the passing body so as not to lower pressure in a stretching device B, and the openings are adjusted so as to be able to follow up pressure by pressure loss. The fluid flowing out of the extracting port 5 together with the treated long-sized body is collected by a collecting chamber 11, and circulated and reused through a duct 14 and a relief valve 16. Accordingly, the high-molecular material long-sized body is stretched under pressure continuously, and physical properties thereof can be improved.
    • 目的:通过形成标尺装置的尺寸,通过连续地在压力下拉伸高分子材料,同时抑制空隙的产生,其中耐压容器中的压力流体基本上不会从标记装置和标题装置之间的间隙泄漏出来 长的身体,虽然长的身体顺利地通过抽取口和进料口。 构成:在该装置的两端安装有具有进料口3的随动加压构件4和具有抽出口5的随动加压构件6,其在进料口上形成有圆筒形容器9 在其一侧形成有流体引入口7,并且在其提取口侧形成有流体排出口8,并且圆柱形容器9的内部填充有压力流体C.长尺寸的本体A顺利地通过 进料口3和萃取口5,但是流体从开口和通过体之间的间隙流出,以便在拉伸装置B中不降低压力,并且调节开口以便能够跟随 压力损失压力。 从处理过的长型体中流出抽出口5的流体由收集室11收集,通过管道14和安全阀16循环再利用。因此,高分子材料长型体 在压力下连续拉伸,可以提高其物理性能。
    • 5. 发明专利
    • Purification of methyl (meth)acrylate
    • 甲基丙烯酸甲酯的纯化
    • JPS58183641A
    • 1983-10-26
    • JP6507582
    • 1982-04-19
    • Asahi Chem Ind Co Ltd
    • AOSHIMA ATSUSHISUZUKI YOSHIONIYUUKAI MAKOTO
    • C07C67/60B01J31/02B01J31/10C07B61/00C07C69/54
    • Y02P20/584
    • PURPOSE: To obtain methyl (meth)acrylate in high purity and yield, by distilling crude methyl (meth)acrylate in contact with an acidic catalyst, thereby decomposing and regenerating the β-methoxy-propionaldehyde produced as a by-product during the esterification reaction.
      CONSTITUTION: The crude methyl (meth)acrylate obtained by the oxidative esterification of (meth)acrolein with an oxygen-containing gas in methanol in the presence of a catalyst, is distilled at 55W130°C, preferably 55W110°C in contact with an acidic catalyst (e.g. benzenesulfonic acid, toluenesulfonic acid, etc.). The β-methoxypropionaldehyde or β-methoxyisobutylaldehyde or dimethyl acetal of (meth)acrolein produced as a by-product during the reaction is decomposed and regenerated to (meth)acrolein and methanol by this process, and purified methyl (meth)acrylate can be obtained. The decomposed and regenerated product is separated as a low-boiling fraction, and recycled and reused.
      COPYRIGHT: (C)1983,JPO&Japio
    • 目的:通过蒸馏与酸性催化剂接触的粗制甲基丙烯酸甲酯,从而在酯化反应中分解和再生作为副产物产生的β-甲氧基丙醛,从而获得高纯度的甲基(甲基)丙烯酸酯, 。 构成:在催化剂存在下,通过(甲基)丙烯醛与含氧气体在甲醇中的氧化酯化获得的粗制甲基(甲基)丙烯酸酯在55-130℃,优选55-110℃蒸馏。 C与酸性催化剂(例如苯磺酸,甲苯磺酸等)接触。 在反应过程中作为副产物产生的(甲基)丙烯醛的β-甲氧基丙醛或β-甲氧基异丁基醛或二甲基缩醛通过该方法分解并再生成(甲基)丙烯醛和甲醇,并且可以获得纯化的(甲基)丙烯酸甲酯 。 分解和再生的产物作为低沸点馏分分离,再循环和再利用。
    • 6. 发明专利
    • Recovery of acrolein of methacrolein and purification of methyl acrylate or methacrylate
    • 甲基丙烯酸甲酯的恢复和丙烯酸甲酯或甲基丙烯酸甲酯的纯化
    • JPS58183633A
    • 1983-10-26
    • JP6507482
    • 1982-04-19
    • Asahi Chem Ind Co Ltd
    • AOSHIMA ATSUSHISUZUKI YOSHIONIYUUKAI MAKOTO
    • C07C67/54C07C27/00C07C27/28C07C45/00C07C45/82C07C47/22C07C67/00C07C69/54
    • PURPOSE: As hydrazine is fed to a position lower than the plate to which the crude product is fed, the distillation of crude methyl acrylate or methacrylate is carried out to recover acrolein or methacrolein from the top, then the bottom fraction is distilled to obtain purified methyl crylate or methacylate.
      CONSTITUTION: The distillation of crude methyl acrylate or methacrylate containing acrolein or methacrolein and carbonyl contaiminants is effected as hydrazine is fed to a position lower than the plate to which the crude product is fed to recover acrolein or methacrolein from the top. Then, the bottom fraction is distilled to give high-purity methyl acrylate or methacrylate of less than 100ppm carbonyl contaminants. Hydrazine hydrate is preferred as a hydrazine and its amount is 2W30 times the molar amount of the contaminants to be treated. The temperature in the column is preferably 50W130°C at the position to which hydrazine is fed.
      USE: A material for plastics.
      COPYRIGHT: (C)1983,JPO&Japio
    • 目的:当将肼送入低于进料粗产物的板的位置时,进行粗制丙烯酸甲酯或甲基丙烯酸甲酯的蒸馏以从顶部回收丙烯醛或甲基丙烯醛,然后蒸馏塔底部分,得到纯化的 甲基丙烯酸甲酯或甲基丙烯酸甲酯。 构成:将丙烯醛或甲基丙烯醛和羰基污染物的粗制丙烯酸甲酯或甲基丙烯酸酯的蒸馏进行,因为肼被送入低于进料粗产物的板的位置,从顶部回收丙烯醛或甲基丙烯醛。 然后,将塔底馏分蒸馏得到小于100ppm羰基污染物的高纯度丙烯酸甲酯或甲基丙烯酸甲酯。 肼水合物优选为肼,其量为待处理污染物摩尔量的2-30倍。 在加入肼的位置,塔中的温度优选为50-130℃。 用途:塑料材料。
    • 7. 发明专利
    • Preparation of ether
    • 醚的制备
    • JPS57122034A
    • 1982-07-29
    • JP841481
    • 1981-01-22
    • Asahi Chem Ind Co Ltd
    • MUROFUSHI TOSHIAKIAOSHIMA ATSUSHI
    • B01J21/00B01J23/00B01J23/24B01J27/00C07B61/00C07C41/00C07C41/05C07C41/06C07C43/04C07C67/00
    • B01J23/24C07C41/06C07C43/046
    • PURPOSE: To obtain ether from a tertiary olefin in a mixed hydrocarbon and an alcohol, by the presence of an adduct of a heteropoly-acid with the raw material alcohol as a solid phase under such a pressure as to keep the mixed hydrocarbon containing the tertiary olefin in the liquid phase or above.
      CONSTITUTION: A tertiary olefin of the formula R
      1 HR=CR
      2 R
      3 (R
      1 is H or alkyl; R
      2 and R
      3 are alkyl) in a mixed hydrocarbon containing the tertiary olefin is reacted with a primary or secondary alcohol, preferably at a molar ratio ≤1.1 based on the olefin, to give an ether having a tertiary alkyl group. In the process, a heteropoly-acid adduct containing one or more of P, Si, B, Ge, As, Se, Ti, Zr, Mn, F, U, Ce and Th as a central element and Mo and/or W as a ligand element with the raw material alcohol is present as a solid phase to carry out the reaction at such a pressure as to keep the raw material hydrocarbon in the liquid phase or above.
      USE: Antiknock agents for gasoline.
      COPYRIGHT: (C)1982,JPO&Japio
    • 目的:为了从混合烃和醇中的叔烯烃得到乙醚,通过杂多酸与原料醇的加合物作为固相的存在,使其保持含有叔烃的混合烃 在液相或以上的烯烃。 组成:式(1)中的叔烯烃:HR = CR 2 R 3(R 1是H或烷基; R 2和R 3是烷基) 叔烯烃与伯醇或仲醇反应,优选以基于烯烃的摩尔比<= 1.1,得到具有叔烷基的醚。 在该方法中,含有P,Si,B,Ge,As,Se,Ti,Zr,Mn,F,U,Ce和Th中的一种或多种作为中心元素的杂多酸加合物,Mo和/或W 存在具有原料醇的配体元素作为固相,以使原料烃保持在液相或以上的压力下进行反应。 用途:汽油抗爆剂。
    • 8. 发明专利
    • Preparation of beta-hydroxyalkyl meth acrylate
    • 丙烯酸羟丙酯甲酯的制备
    • JPS5738747A
    • 1982-03-03
    • JP11335280
    • 1980-08-20
    • Asahi Chem Ind Co Ltd
    • NEZU SATORUMIYAMOTO AKIICHIAOSHIMA ATSUSHI
    • C07C69/54B01J23/26B01J27/08B01J31/04C07B61/00C07C67/26
    • Y02P20/52
    • PURPOSE: To prepare the titled compound in high selectivity, purity and yield, by reacting acrylic acid or methacrylic acid with an alkylene oxide using a catalyst comprising at least one chromium compound in combination with metaboric acid.
      CONSTITUTION: β-Hydroxyalkyl (meth)acrylate is prepared by reacting acrylic acid or methacrylic acid with an alkylene oxide in the presence of a catalyst consisting of 0.3W0.6wt%, based on the (meth)acrylic acid, of at least one chormium compound selected from chromium halides, saturated or unsaturated fatty acid chromium salts, and chromium oxides, and 0.3W0.6wt% of metaboric acid.
      EFFECT: The produced objective compound can be purified easily by simple distillation.
      COPYRIGHT: (C)1982,JPO&Japio
    • 目的:通过使用包含至少一种铬化合物与代谢酸的催化剂将丙烯酸或甲基丙烯酸与烯化氧反应,以高选择性,纯度和产率制备标题化合物。 构成:(甲基)丙烯酸β-羟烷基酯是通过使丙烯酸或甲基丙烯酸与烯化氧在催化剂存在下制备的,所述催化剂由基于(甲基)丙烯酸的至少一种氧化铈为0.3-0.6wt% 选自卤化铬,饱和或不饱和脂肪酸铬盐和铬氧化物的化合物,以及0.3-0.6重量%的偏硼酸。 效果:通过简单蒸馏可以容易地纯化生成的目标化合物。
    • 9. 发明专利
    • Production of polyalkylene ether polyol
    • 聚亚烷基醚多元醇的生产
    • JPS61126134A
    • 1986-06-13
    • JP24618684
    • 1984-11-22
    • Asahi Chem Ind Co Ltd
    • AOSHIMA ATSUSHITONOMURA SHOICHIRO
    • C08G65/16C08G65/02C08G65/10C08G65/20C08G65/34
    • PURPOSE: To obtain the titled high-quality polyol low in coloration, by polymerizing a five-membered or larger cyclic ether along or copolymerizing this ether with other cyclic ethers and polyalcohols.
      CONSTITUTION: A five-membered or larger cyclic ether (A) (e.g., tetrahydrofuran) is polymerized or copolymerized with other cyclic ethers (e.g., ethylene oxide) or a polyhydric alcohol (e.g., ethylene glycol) at -10W150°C for 0.5W20hr by recirculating the reaction mixture between a polymerization tank 1 and a phase separation tank 2. The upper layer formed by phase separation is fed to a distillation tower 3 where it is separated from unreacted monomer, etc., to obtain a polyalkylene ether glycol.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:为了获得低着色度的标准高品质多元醇,通过使5元或更多的环醚与其它环醚和多元醇共聚或共聚而成。 构成:在-10-150℃下,五元或更多的环醚(A)(例如四氢呋喃)与其它环醚(例如环氧乙烷)或多元醇(例如乙二醇)聚合或共聚 通过将反应混合物循环在聚合槽1和相分离罐2之间0.5-20小时。通过相分离形成的上层被供给到蒸馏塔3,在那里与未反应的单体等分离,得到聚亚烷基 醚乙二醇。