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公开(公告)号：US4677231A
公开(公告)日：1987-06-30
申请号：US798249
申请日：1985-11-08
CPC分类号： C08G65/30 , Y02P20/582
摘要： A process for purifying a polyalkylene ether, which comprises mixing a polyalkylene ether or a mixture of a polyalkylene ether and an organic solvent containing a heteropoly acid and/or its salt with at least one solvent for purification selected from hydrocarbons having 3 to 15 carbon atoms or halogenated hydrocarbons having 1 to 15 carbon atoms and separating by precipitation the phase composed mainly of the heteropoly acid and/or its salt, and a process wherein the polyalkylene ether or a mixture of a polyalkylene ether and an organic solvent containing a heteropoly acid and/or its salt is brought into contact with a solid adsorbent capable of adsorbing the heteropoly acid and/or its salt in the presence of at least one solvent for purification as described above, either further after the separation according to the process described above, or in the state unseparated.According to the present invention, the heteropoly acid and/or its salt dissolved in the polyalkylene ether or the mixture of the polyalkylene ether with the organic solvent can be removed efficiently in the form which can be reused. Further after the treatment with an adsorbent, the concentration of heteropoly acids in the polyalkylene ether can be reduced to extremely lower.
摘要翻译： 一种纯化聚亚烷基醚的方法，其包括将聚亚烷基醚或含有杂多酸和/或其盐的有机溶剂的聚亚烷基醚或其混合物与选自具有3至15个碳原子的烃的至少一种纯化溶剂混合 或具有1至15个碳原子的卤代烃，并通过沉淀主要由杂多酸和/或其盐组成的相分离，以及其中聚亚烷基醚或聚亚烷基醚和含有杂多酸的有机溶剂的混合物和 /或其盐与固体吸附剂接触，所述固体吸附剂在至少一种如上所述的纯化溶剂存在下，可以在根据上述方法分离之后进一步吸附杂多酸和/或其盐，或 在状态未分离。 根据本发明，可以以可再利用的形式有效地除去溶解在聚亚烷基醚中的杂多酸和/或其盐或聚亚烷基醚与有机溶剂的混合物。 进一步用吸附剂处理后，聚亚烷基醚中杂多酸的浓度可以降低至极低。
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公开(公告)号：US4518796A
公开(公告)日：1985-05-21
申请号：US149387
申请日：1980-05-13
IPC分类号： B01J23/644 , B01J31/06 , C07C67/39 , C07C67/40
摘要： A method for preparing a carboxylic ester by reacting an aldehyde with an alcohol in the presence of oxygen with a catalyst, characterized in that the catalyst is a solid catalyst comprising palladium and bismuth, which may form an intermetallic compound, and which catalyst may comprise an alkali metal compound or an alkaline earth metal compound. The aforesaid catalyst avoids decomposition reactions simultaneously with the desired reaction, and therefore, the desired compound can be obtained in a high yield.
摘要翻译： 一种通过使醛与醇在催化剂存在下反应来制备羧酸酯的方法，其特征在于所述催化剂是包含钯和铋的固体催化剂，其可以形成金属间化合物，并且该催化剂可以包含 碱金属化合物或碱土金属化合物。 上述催化剂与所需反应同时避免分解反应，因此可以高产率获得所需化合物。
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公开(公告)号：US4568775A
公开(公告)日：1986-02-04
申请号：US610741
申请日：1984-05-16
摘要： A process for producing a polyoxytetramethylene glycol or a copolymerized polyetherglycol by polymerizing tetrahydrofuran or a mixture of tetrahydrofuran with other cyclic ethers copolymerizable therewith, which comprises using a heteropoly-acid as a catalyst and permitting 0.1 to 15 mol of water per mol of the heteropolyacid to be present in the catalyst phase.The above-described polymer and copolymer are industrially useful polymers which can be used as the primary starting materials for polyurethanes to be used for a spandex and a synthetic leather, solvents, pressured fluids, etc.
摘要翻译： 通过聚合四氢呋喃或四氢呋喃与可与其共聚的其它环醚的混合物制备聚氧四亚甲基二醇或共聚的聚醚二醇的方法，其包括使用杂多酸作为催化剂，并允许每摩尔杂多酸0.1至15摩尔水 存在于催化剂阶段。 上述聚合物和共聚物是工业上有用的聚合物，其可以用作用于氨纶和合成革，溶剂，压力流体等的聚氨酯的主要起始材料。
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公开(公告)号：US4792627A
公开(公告)日：1988-12-20
申请号：US944354
申请日：1986-12-22
CPC分类号： C08G65/2666 , C08G18/4854 , C08G18/4858 , C08G65/20
摘要： A process for producing a polyether polyol with a content of 0.5 to 99.5% by weight of oxytetramethylene groups derived from tetrahydrofuran by copolymerizing tetrahydrofuran or a mixture of tetrahydrofuran and other cyclic ether copolymerizable therewith with a polyhydric alcohol having two or more hydroxyl groups per one molecule with the use of a heteropoly-acid and/or its salt as a catalyst, which comprises allowing 0.1 to 15 molecules of water per one heteropoly-anion to exist in the catalyst phase.The above-described polyether polyol is an industrially useful polymer which is a starting material for polyurethane to be used for spandex or a synthetic leather, etc.
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公开(公告)号：US4658065A
公开(公告)日：1987-04-14
申请号：US716656
申请日：1985-03-27
CPC分类号： C08G65/2666 , C08G18/4854 , C08G18/4858 , C08G65/20
摘要： A process for producing a polyether polyol with a content of 0.5 to 99.5% by weight of oxytetramethylene groups derived from tetrahydrofuran by copolymerizing tetrahydrofuran or a mixture of tetrahydrofuran and another cyclic ether copolymerizable therewith with a polyhydric alcohol having two or more hydroxyl groups per one molecule with the use of a heteropoly-acid and/or its salt as a catalyst, which comprises allowing 0.1 to 15 molecules of water per one heteropoly-anion to exist in the catalyst phase.The above-described polyether polyol is an industrially useful polymer which is a starting material for polyurethane to be used for spandex or a synthetic leather, etc.
摘要翻译： 通过将四氢呋喃或四氢呋喃和可与其共聚的其它环醚的混合物与每分子具有两个或更多个羟基的多元醇共聚合而制备含量为0.5至99.5重量％的由四氢呋喃衍生的氧四亚甲基基团的聚醚多元醇的方法 使用杂多酸和/或其盐作为催化剂，其包括在催化剂相中每1个杂多阴离子允许0.1至15分子的水。 上述聚醚多元醇是工业上有用的聚合物，其是用于氨纶或合成革等的聚氨酯的原料。
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公开(公告)号：US4446328A
公开(公告)日：1984-05-01
申请号：US263667
申请日：1981-05-14
申请人： Atsushi Aoshima , Ryoichi Mitsui
发明人： Atsushi Aoshima , Ryoichi Mitsui
CPC分类号： B01J23/8871 , B01J23/8874 , B01J23/8875 , C07C45/35 , C07C45/37 , C07C51/23 , B01J2523/00
摘要： A process for producing methacrolein by oxidizing isobutylene or tertiary butanol with molecular oxygen, characterized by contacting a gaseous mixture of isobutylene or tertiary butanol, air or oxygen and optionally steam and an inert gas with a catalyst having the general composition:Mo.sub.12 Fe.sub.a Ni.sub.b Te.sub.c X.sub.d Z.sub.f Y.sub.g O.sub.hwherein a, b, c, d, f and g represent the numbers of atoms of the respective elements per 12 molybdenum atoms; X is Tl, Rb or Cs; Z is In or Ti; Y represents at least one element selected from the group consisting of Cu, Nd, Sm and Pb; a is a value of 0.2-6; b is a value of 0.2-6; a+b is a value of 1-10; c is a value of 0.1-4; d is a value of 0.1-3; f is a value of 0.1-3; g is a value of 0-5; and h is the number of oxygen atoms for satisfying the valencies of the existing elements. The use of this catalyst enables the selectivity for methacrolein to be improved to 90 or more and the yield based on the starting material to be increased to 89-91%. In addition, the high activity of said catalyst and high selectivity are stably maintained for a long period of time.
摘要翻译： 通过用分子氧氧化异丁烯或叔丁醇来生产异丁烯醛的方法，其特征在于使异丁烯或叔丁醇，空气或氧气的气体混合物和任选的蒸汽和惰性气体与具有一般组成的催化剂接触：其中a，b ，c，d，f和g表示每12个钼原子的各元素的原子数; X是Tl，Rb或Cs; Z是In或Ti; Y表示选自Cu，Nd，Sm和Pb中的至少一种元素; a是0.2-6的值; b为0.2-6的值; a + b为1-10; c为0.1-4的值; d为0.1-3的值; f为0.1-3的值; g是0-5的值; 并且h是满足现有元素的价态的氧原子数。 使用该催化剂使甲基丙烯醛的选择性提高到90以上，原料的收率提高到89〜91％。 此外，所述催化剂的高活性和高选择性长时间稳定地保持。
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公开(公告)号：US4356316A
公开(公告)日：1982-10-26
申请号：US236956
申请日：1981-02-23
摘要： A process for producing an ester of acrylic or methacrylic acid by oxidizing propylene or isobutylene in the liquid phase in the presence of a straight chain lower alcohol and molecular oxygen, characterized by carrying out the reaction in the presence of:(1) a catalyst consisting of palladium and at least one metal selected from the group consisting of lead, bismuth, thallium, tellurium and mercury, preferably an intermetallic compound of palladium and said metal;(2) at least one compound selected from the group consisting of mineral acids, heteropoly-acids, heteropoly-acid salts, molybdic acid and organic sulfonic acids, preferably heteropoly-acids or their salts; and(3) optionally, at least one compound selected from the group consisting of alkali metal compounds and alkaline earth metal compounds.According to this process, the activity of catalyst is high even in a reaction at low temperatures, the amount of by-product is small and the objective ester can be produced with a high selectivity.
摘要翻译： 一种通过在直链低级醇和分子氧的存在下，在液相中氧化丙烯或异丁烯来生产丙烯酸或甲基丙烯酸酯的方法，其特征在于在下列存在下进行反应：（1） 的钯和选自铅，铋，铊，碲和汞的至少一种金属，优选钯和所述金属的金属间化合物; （2）至少一种选自无机酸，杂多酸，杂多酸盐，钼酸和有机磺酸的化合物，优选杂多酸或其盐; 和（3）任选的至少一种选自碱金属化合物和碱土金属化合物的化合物。 根据该方法，即使在低温下的反应中，催化剂的活性也高，副产物的量少，能以高选择性生产目的酯。
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8.发明授权
公开(公告)号：US5693748A
公开(公告)日：1997-12-02
申请号：US334314
申请日：1994-11-02
申请人： Masanori Ikeda , Atsushi Aoshima , Hiroyuki Fukui
发明人： Masanori Ikeda , Atsushi Aoshima , Hiroyuki Fukui
CPC分类号： C10M149/14 , C08G65/226 , C08G73/00 , C08G73/065 , C10M2217/041 , C10N2230/08 , C10N2240/04 , C10N2240/08 , C10N2240/204
摘要： A high molecular weight polyimidoylamidine having an intrinsic viscosity of from 0.25 dl/g to 0.60 dl/g and a high molecular weight polytriazine derived therefrom having an intrinsic viscosity of from 0.25 dl/g to 0.65 dl/g are disclosed. A polyimidoylamidine having a molecular weight in a wide range, including high molecular weight, can advantageously be obtained by reacting a perfluoropolyether dinitrile with ammonia and reacting the resultant reaction product with a specific amount of a perfluoropolyether dinitrile. A terminal-stabilized polytriazine and its preparation methods are also disclosed. A polytrizine, which contains a nitrile group at side chains thereof and has an intrinsic viscosity within a specific range, is particularly suitable as a precursor of a perfluoroelastomer having excellent mechanical and chemical properties.
摘要翻译： 公开了特性粘度为0.25dl / g至0.60dl / g的高分子量聚亚氨基脒和由其衍生的高分子量聚三嗪，其特性粘度为0.25dl / g至0.65dl / g。 通过使全氟聚醚二腈与氨反应并使所得反应产物与特定量的全氟聚醚二腈反应，可以有利地获得分子量范围广，包括高分子量的聚亚氨基脒。 还公开了末端稳定化的三叉三嗪及其制备方法。 在其侧链含有腈基并且特定粘度在特定范围内的聚三嗪特别适合作为具有优异的机械和化学性质的全氟弹性体的前体。
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9.发明授权Transparent polyamide elastomer from carboxy polycaprolactam and poly(tetramethylene oxy)glycol 失效来自羧基聚己内酰胺和聚（四氢呋喃）二醇的透明聚酰胺弹性体
公开(公告)号：US4820796A
公开(公告)日：1989-04-11
申请号：US1657
申请日：1986-12-15
IPC分类号： C08G69/44
CPC分类号： C08G69/44
摘要： A polyamide elastomer having a structure of dehydration condensate between(A) a polycapramide having a number average molecular weight of 500-5,000 and having carboxyl end groups, which is derived from caprolactam and a dicarboxylic acid having 4-20 carbon atoms selected from aliphatic dicarboxylic acids, alicyclic dicarboxylic acids and aromatic dicarboxylic acids and (B) a polyoxytetramethylene glycol having a number average molecular weight of 800-5,000 or a modified polyoxytetramethylene glycol having a number average molecular weight of 800-5,000 and having, in the molecular chain, the units represented by the general formula--O--R--wherein R is a branched chain alkylene group having 4-20 carbon atoms or a straight chain alkylene group having 5-20 carbon atoms, the units content being 50% by weight or a less; the weight ratio of the component (A) to the component (B) being from 10:90 to 60:40. The said elastomer has a relative viscosity of 1.5 or above in m-cresol (0.5 weight/volume %) at 30.degree. C., a polyamide partition ratio of 0.7-1.3, a Shore hardness of 60 A-50 D, a tensile strength of 150 kg/cm.sup.2 or above, and a cloudiness (haze value) of 75% or below. The elastomer is advantageously usable in hose, tube and the like. The disclosure also includes process for producing such an elastomer.
摘要翻译： PCT No.PCT / JP86 / 00209 Sec。 一九八六年十二月十五日 102（e）日期1986年12月15日PCT提交1986年4月25日PCT公布。 公开号WO86 / 06390 日本1986年11月6日。一种聚酰胺弹性体，其具有在（A）数均分子量为500〜5000的具有羧基端基的聚己内酰胺之间的脱水缩合物，其由己内酰胺衍生而得的二羧酸， 20个选自脂族二羧酸，脂环族二羧酸和芳族二羧酸的碳原子和（B）数均分子量为800-5,000的聚氧四亚甲基二醇或数均分子量为800-5,000的改性聚氧四亚甲基二醇，并且具有 在分子链中，由通式-OR-表示的单元，其中R是具有4-20个碳原子的支链亚烷基或具有5-20个碳原子的直链亚烷基，单元含量为50％ 重量或更少; 组分（A）与组分（B）的重量比为10:90至60:40。 所述弹性体在30℃下的间甲酚（0.5重量/体积％）中的相对粘度为1.5以上，聚酰胺分配比为0.7〜1.3，肖氏硬度为60A〜50D，拉伸强度 为150kg / cm 2以上，浊度（雾度值）为75％以下。 弹性体有利地用于软管，管等。 本公开还包括生产这种弹性体的方法。
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公开(公告)号：US4518462A
公开(公告)日：1985-05-21
申请号：US497783
申请日：1983-05-25
CPC分类号： C07C67/54 , Y10S203/20 , Y10S203/22
摘要： In purifying methyl methacrylate by feeding a feed mixture containing methanol, methyl methacrylate and 0.05 to 2% by weight, based on the weight of the methyl Methacrylate, of methyl isobutyrate to a first distillation column, subjecting the same to distillation therein in the presence of a saturated hydrocarbon having 6 or 7 carbon atoms while distilling out said saturated hydrocarbon, the methanol, a small amount of the methyl methacrylate and the methyl isobutyrate through the top of the first distillation column and simultaneously recovering methyl methacrylate freed from methanol and methyl isobutyrate from the bottom of the distillation column, wherein the top distillate is cooled in the decanter to be separated into two layers, the resulting upper layer composed mainly of the saturated hydrocarbon is returned to the first distillation column and the resulting lower layer composed mainly of methanol is fed to a second distillation column in which distillation is conducted while recovering the saturated hydrocarbon dissolved in the lower layer together with a part of the methanol from the top of the second distillation column and sending the same to the decanter, and withdrawing methanol, methyl isobutyrate and a small amount of methyl methacrylate from the bottom of the second distillation column, the methyl methacrylate can be effectively purified in high yield by allowing the saturated hydrocarbon to be present only above the feed stage of the first distillation column to which the feed mixture is fed, cooling the top distillate of the first distillation column to 0.degree.-13.degree. C. in the decanter, providing distillation stages above the feed stage of the second distillation column and conducting distillation while returning a part of the top distillate of the second distillation column to the top of the second distillation column, thereby separating methanol and methyl isobutyrate from methyl methacrylate.
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