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    • 33. 发明申请
    • POLYBENZOXAZOLE POLYMER-BASED MIXED MATRIX MEMBRANES
    • 聚苯并唑基聚合物混合基质膜
    • WO2010110986A2
    • 2010-09-30
    • PCT/US2010/025391
    • 2010-02-25
    • UOP LLCLIU, ChunqingTANG, Man-WingSERBAYEVA, RaisaZHOU, Lubo
    • LIU, ChunqingTANG, Man-WingSERBAYEVA, RaisaZHOU, Lubo
    • B01D71/00B01D69/00B01D67/00
    • B01D71/62B01D67/0079B01D69/147
    • The present invention discloses new types of polybenzoxazole-based mixed matrix membranes and methods for making and using these membranes. The polybenzoxazole-based mixed matrix membranes are prepared by fabricating a polyimide-based mixed matrix membrane by dispersing molecular sieve particles in a continuous aromatic polyimide matrix with pendent hydroxyl groups ortho to the heterocyclic imide nitrogen; and then converting the polyimide-based mixed matrix membrane to a polybenzoxazole-based mixed matrix membrane by heating between 200 and 600C under inert atmosphere or vacuum. The polybenzoxazole-based mixed matrix membranes of the present invention can be fabricated into any convenient geometry such as flat sheet (or spiral wound), tube, hollow fiber, or thin film composite. These polybenzoxazole-based mixed matrix membranes exhibit high thermal stability, significantly higher selectivity than the neat polybenzoxazole polymer membranes, and much higher permeability than traditional mixed matrix membranes.
    • 本发明公开了新型的基于苯并恶唑的混合基质膜,以及制造和使用这些膜的方法。 基于聚苯并恶唑的混合基质膜通过将分子筛颗粒分散在具有与杂环酰亚胺氮原子相邻的侧羟基的连续芳族聚酰亚胺基体中制备聚酰亚胺基混合基质膜来制备; 然后通过在惰性气氛或真空下在200℃至600℃之间加热将聚酰亚胺基混合基质膜转变成聚苯并恶唑类混合基质膜。 本发明的基于聚苯并恶唑的混合基质膜可以制成任何方便的几何形状,例如平板(或螺旋缠绕),管,中空纤维或薄膜复合材料。 这些基于聚苯并恶唑的混合基质膜具有高的热稳定性,比纯聚苯并恶唑聚合物膜显着更高的选择性,并且比传统的混合基质膜具有更高的渗透性。
    • 35. 发明申请
    • MIXED MATRIX MEMBRANES CONTAINING LOW ACIDITY NANO-SIZED SAPO-34 MOLECULAR SIEVES
    • 含有低酸度纳米尺寸SAPO-34分子筛的混合基质膜
    • WO2009075952A1
    • 2009-06-18
    • PCT/US2008/080917
    • 2008-10-23
    • UOP LLCLIU, ChunqingWILSON, Stephen T.KNIGHT, Lisa M.
    • LIU, ChunqingWILSON, Stephen T.KNIGHT, Lisa M.
    • B01D53/22
    • B01D67/0079B01D53/228B01D69/147B01D69/148B01D2256/24B01D2257/504B01D2323/21Y02C10/10
    • The present invention discloses mixed matrix membranes (MMMs) containing polymer-functionalized low acidity, ultra low silica-to-alumina ratio, nano-sized SAPO-34 small pore molecular sieves and a continuous polymer matrix and methods for making and using these membranes. The surface functionalization of these molecular sieves provides a desired interfacial adhesion between SAPO-34 nano-particles and the continuous polymer matrix, which results in either no macrovoids or voids of less than 5 angstroms at the interface of the continuous polymer matrix and SAPO-34 in the MMMs. These MMMs, in the form of symmetric dense film, asymmetric flat sheet membrane, or asymmetric hollow fiber membranes, have good flexibility and high mechanical strength, and exhibit remarkably enhanced CO 2 permeability (or CO 2 permeance) and maintained CO 2 /CH 4 selectivity over the continuous polymer matrices for CO 2 /CH 4 separation. The MMMs of the present invention are suitable for a variety of liquid, gas, and vapor.
    • 本发明公开了含有聚合物官能化低酸度,超低二氧化硅与氧化铝比的纳米级SAPO-34小孔分子筛和连续聚合物基质的混合基质膜(MMM)以及制备和使用这些膜的方法。 这些分子筛的表面官能化提供SAPO-34纳米颗粒和连续聚合物基质之间期望的界面粘合,其导致在连续聚合物基质和SAPO-34的界面处不存在小于5埃的大孔或空隙 在MMM中。 这些以对称致密膜,不对称平板膜或不对称中空纤维膜形式的MMM具有良好的柔韧性和高机械强度,并且显示出显着提高的CO 2渗透性(或CO 2渗透性)并且保持CO 2 / CH 4选择性超过连续 用于CO2 / CH4分离的聚合物基质。 本发明的MMM适用于各种液体,气体和蒸气。
    • 37. 发明申请
    • PROCESS FOR IMMOBILIZING A CHELATOR ON SILICA, DEVICE CONTAINING IMMOBILIZED CHELATOR, AND USE THEREOF
    • 用于固定二氧化硅上的冷凝器的装置,含有固定装置的装置的装置及其用途
    • WO00006291A1
    • 2000-02-10
    • PCT/US1999/017125
    • 1999-07-27
    • B01D61/00B01D61/24B01D61/28B01D63/02B01D63/06B01D69/10
    • B01D69/10A61M1/3679B01D63/02B01D69/147B01D2311/2626B01D2313/44B01D2325/12B01J20/103B01J20/14B01J20/28023B01J20/28038B01J20/28059B01J20/3204B01J20/3259
    • In an improved process for immobilizing a chelator moiety on a silica substrate, the substrate is reacted in a liquid reaction medium with an alkyltrialkoxysilane compound having a functional group that provides an attachment site for covalently binding the chelator moiety to the substrate wherein the improvement comprises providing a particulate silica substrate having a surface area less than about 50 square meters per gram. An improved extracorporeal device for removing metal ions from blood and other fluids includes a cartridge (10) having an inlet (32) and an outlet (34) and containing a plurality of tubular anisotropic membrane fibers (22) that extends from the inlet (32) to the outlet (34) and supported by a macroporous structure (24) that contains a chelator moiety immobilized on a particulate silica substrate having a surface area of less than about 50 square meters per gram. The anisotropic membrane forms a diffusion barrier permeable to metal cations, but impermeable to high molecular weight components.
    • 在将螯合剂部分固定在二氧化硅基质上的改进方法中,使底物在液体反应介质中与具有官能团的烷基三烷氧基硅烷化合物反应,所述烷基三烷氧基硅烷化合物提供用于共价结合螯合剂部分与基材的附着位点,其中改进包括提供 具有小于约50平方米/克的表面积的颗粒状二氧化硅基质。 用于从血液和其它流体中去除金属离子的改进的体外装置包括具有入口(32)和出口(34)并且包含多个管状各向异性膜纤维(22)的筒(10),其从入口(32)延伸 )到出口(34)并由大孔结构(24)支撑,所述大孔结构(24)含有固定在表面积小于约50平方米/克的颗粒状二氧化硅基质上的螯合剂部分。 各向异性膜形成对金属阳离子可渗透的扩散阻挡层,但对高分子量组分不可渗透。