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    • 1. 发明授权
    • Ultrathin solid membrane, process for production thereof, and use
thereof for concentrating a specified gas in a gaseous mixture
    • 超薄固体膜,其生产方法及其用于将特定气体浓缩在气体混合物中的用途
    • US4406673A
    • 1983-09-27
    • US217582
    • 1980-12-18
    • Takeyoshi YamadaShizuka KurisuShizuo AzumaKiyoshi SugieTeizo Yamaji
    • Takeyoshi YamadaShizuka KurisuShizuo AzumaKiyoshi SugieTeizo Yamaji
    • B01D53/22B01D69/12B01D71/26B29D7/01B01D39/16
    • B01D53/22B01D69/122B01D71/26B29D7/01B01D2313/38
    • A process for producing ultrathin solid membranes from a solvent solution of an addition polymer derived from an ethylenically unsaturated hydrocarbon monomer or a conjugated unsaturated hydrocarbon monomer in a solvent composed mainly of a volatile, substantially water-immiscible organic liquid medium capable of dissolving the addition polymer and another organic compound having a distribution coefficient k, which is the ratio of the concentration of the other organic compound in the organic liquid medium to that in water, of from 0.5 to 35. The solvent satisfies the equationc.sub.1 -(a.sub.1 +b.sub.1).gtoreq.25wherein c.sub.1 is the surface tension (dynes/cm) of water, a.sub.1 is the surface tension (dynes/cm) of the solution of the addition polymer in the solvent, and b.sub.1 is the interfacial tension (dynes/cm) between the solvent solution and water.The solvent solution of the addition polymer is allowed to spread spontaneously on the surface of a liquid support consisting substantially of water whereby the solvent in the solvent solution is removed to an amount sufficient to form a solid membrane on the surface of the liquid support. The process may be performed batchwise or continuously. The solid membrane can be used for obtaining a gas having a specified component gas concentrated therein, for example, a gaseous mixture having enriched oxygen gas from a gaseous mixture of two or more gases for example air.
    • 一种由主要由能够溶解加成聚合物的挥发性基本上与水不混溶的有机液体介质组成的溶剂中的衍生自烯键式不饱和烃单体或共轭不饱和烃单体的加成聚合物的溶剂溶液制备超薄固体膜的方法 和作为有机液体介质中的其他有机化合物的浓度与水中的其他有机化合物的比例的分配系数k的另一种有机化合物为0.5〜35。溶剂满足方程式c1-(a1 + b1) 其中c1是水的表面张力(达因/厘米),a1是加成聚合物在溶剂中的溶液的表面张力(达因/厘米),b1是界面张力(达因/厘米) 在溶剂溶液和水之间。 允许加成聚合物的溶剂溶液自发扩散在基本上由水组成的液体载体的表面上,由此除去溶剂溶液中的溶剂至足以在液体载体的表面上形成固体膜的量。 该方法可以间歇或连续进行。 固体膜可用于获得其中浓缩有特定组分气体的气体,例如具有浓缩氧气的气体混合物,其来自两种或多种气体(例如空气)的气体混合物。
    • 4. 发明授权
    • Process for preparing polyesters
    • 聚酯的制备方法
    • US4124566A
    • 1978-11-07
    • US806879
    • 1977-06-15
    • Noritsugu SaikiShizuka KurisuShoji Kawase
    • Noritsugu SaikiShizuka KurisuShoji Kawase
    • C08G63/20C08G63/78C08G63/18C08G63/22C08G63/26C08G63/28
    • C08G63/78C08G63/20
    • A process for preparing polyesters having superior thermal stability, transparency and chemical resistance, which comprises (1) a first step of esterifying (A) a difunctional carboxylic acid containing at least 60 mole% of an aromatic dicarboxylic acid, (B) 0 to 80 mole%, based on component (A), of an aliphatic diol and/or a dihydroxybenzene and (C) an aromatic monohydroxy compound in an amount of at least 210 mole% as a total of it and component (B) based on component (A), the esterification being performed until the degree of esterification reaches at least 80%, (2) subsequently, a second step of adding 0 to 80 mole%, based on component (A), of component (B) and a bisphenol (D) in an amount of 100 to 130 mole% as a total of it and component (B) based on component (A) to the reaction product obtained in the first step and reacting the mixture, the total amount of components (B) used in the first and second steps being 0 to 80 mole% based on component (C), and (3) performing at least the first of the above steps in the presence of an aromatic hydrocarbon medium having a boiling point of 105.degree. to 175.degree. C at normal atmospheric pressure and being inert at the reaction temperature.
    • 一种制备具有优异的热稳定性,透明性和耐化学性的聚酯的方法,其包括(1)第一步(A)含有至少60摩尔%的芳族二羧酸的二官能羧酸,(B)0至80 摩尔%,基于组分(A),脂族二醇和/或二羟基苯和(C)芳族单羟基化合物,其总量为至少210摩尔%,组分(B)为基于组分( A),进行酯化直到酯化度达到至少80%,(2)随后,添加基于组分(A)0至80摩尔%的组分(B)和双酚( D),其总量为100〜130摩尔%,(B)成分与第一工序中得到的反应产物的组分(B)反应,使混合物的组分(B)的使用量 在第一和第二步骤中,基于组分(C)为0至80摩尔%,和(3)至少执行t 他在上述步骤中首先在正常大气压下在沸点为105〜175℃的芳烃介质存在下,在反应温度下为惰性。
    • 6. 发明授权
    • Process for preparing soft transparent polyether polyester block
copolymers
    • 软透明聚醚聚酯嵌段共聚物的制备方法
    • US4081494A
    • 1978-03-28
    • US641038
    • 1975-12-15
    • Hiroshi SakaiYoshihiko TakeuchiShizuka Kurisu
    • Hiroshi SakaiYoshihiko TakeuchiShizuka Kurisu
    • C08G63/672C08L67/02
    • C08G63/672
    • In a process for preparing soft polyesters which comprises reacting (A) terephthalic acid and/or its ester-forming derivative, (B) tetramethylene glycol and/or its ester-forming derivative and (C) a poly(oxyalkylene) glycol having a molecular weight of 500 to 5,000 and a ratio of the number of carbon atoms to that of oxygen atoms of 2 to 4.5, the improvement wherein after the reduced viscosity of the reaction product of the components (A), (B) and (C) has reached 0.1 (dl/g), the reaction product is further reacted with (D) a low-molecular-weight ester compound and/or a high-molecular-weight ester compound containing a terephthalic acid residue and an ethylene glycol residue or a low-molecular-weight ester compound and/or a high-molecular-weight ester compound containing a terephthalic acid residue and a 1,4-cyclohexane dimethanol residue to form a polyester-polyether block copolymer.
    • 在制备软质聚酯的方法中,其包括使(A)对苯二甲酸和/或其形成酯的衍生物与(B)四亚甲基二醇和/或其成酯衍生物和(C)具有分子量的聚(氧化烯) (A),(B)和(C)的反应产物的比浓粘度在具有(A),(B)和(C)的反应产物的比浓粘度 达到0.1(dl / g),反应产物进一步与(D)低分子量酯化合物和/或含有对苯二甲酸残基和乙二醇残基的高分子量酯化合物或低 - 分子量酯化合物和/或含有对苯二甲酸残基和1,4-环己烷二甲醇残余物的高分子量酯化合物以形成聚酯 - 聚醚嵌段共聚物。