利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

227 条记录 (耗时 0.019 秒)

    Block polyurethane-ether and polyurea-ether gas separation membranes
    25.
    发明授权
    Block polyurethane-ether and polyurea-ether gas separation membranes 有权
    嵌段聚氨酯 - 醚和聚脲 - 醚气体分离膜

    公开(公告)号：US06843829B2

    公开(公告)日：2005-01-18

    申请号：US10389024

    申请日：2003-03-13

    申请人： John W. Simmons

    发明人： John W. Simmons

    IPC分类号： B01D53/22 ,  B01D71/54 ,  B01D71/80 ,  C08G18/10 ,  C08G18/48 ,  B01D71/52

    CPC分类号： C08G18/4825 ,  B01D53/228 ,  B01D71/52 ,  B01D71/54 ,  B01D71/80 ,  C08G18/10 ,  C08G2340/00 ,  Y02C10/10 ,  Y02P20/152 ,  C08G18/3206 ,  C08G18/3228

    摘要： Gas separation membranes formed from polyether-urethane or polyether-urea block copolymers are useful for separating gases from gas mixtures. The membranes and processes are especially suited for separating polar gases from mixtures that contain polar and non-polar species. The novel membranes exhibit good permeability and permselectivity, as well as durability, making them well suited for industrial applications such as removal of acid gases from natural gas and removal of carbon dioxide from synthesis gas.

    摘要翻译： 由聚醚 - 聚氨酯或聚醚 - 脲嵌段共聚物形成的气体分离膜可用于从气体混合物中分离气体。 膜和方法特别适用于从极性和非极性物质的混合物中分离极性气体。 新型膜具有良好的渗透性和渗透选择性以及耐久性，使其非常适用于工业应用，例如从天然气中除去酸性气体并从合成气中除去二氧化碳。

    Membrane, e.g. for use in an ileostomy bag
    26.
    发明授权
    Membrane, e.g. for use in an ileostomy bag 失效
    膜，例如 用于回肠造口袋

    公开(公告)号：US5352316A

    公开(公告)日：1994-10-04

    申请号：US747086

    申请日：1991-08-19

    申请人： Graham E. Steer

    发明人： Graham E. Steer

    IPC分类号： A61L26/00 ,  A61F5/441 ,  A61F13/15 ,  B01D19/00 ,  B01D69/10 ,  B01D71/26 ,  B01D71/54 ,  B32B31/00 ,  A61F5/44

    CPC分类号： A61F13/5146 ,  A61F13/51405 ,  A61F13/51476 ,  A61F5/441 ,  A61L28/0011 ,  A61L28/0053 ,  A61L28/0069 ,  B01D19/0031 ,  B01D69/10 ,  A61F2013/51415 ,  A61F2013/51417 ,  A61F2013/51427 ,  A61F2013/51431 ,  A61F2013/51439 ,  Y10T156/1056

    摘要： A method of making a gas-permeable liquid-impermeable membrane includes the steps of perforating a film of linear low density polyethylene (or other suitable polyolefin) in such a way as to yield an array of holes each having an average diameter of approximately 350, microns and then solution coating the needled film with a porous polyurethane material having pores of a pore size of 1 to 10 microns.Such a film is advantageously embodied in an ileostomy bag, and is fixed to a bag wall thereof in a location to prevent faecal material contacting the bag filter, by a heat or RF welding operation by which the polyolefin is welded to the bag wall which carries the filter. In use, the polyurethane is exposed to the bag contents, and permits gases to pass but prevents any liquid reaching the filter.

    摘要翻译： 制造透气液体不可渗透膜的方法包括以下步骤：使线性低密度聚乙烯（或其它合适的聚烯烃）的膜穿孔，以产生平均直径为约350的孔阵列， 然后用孔径为1至10微米的孔的多孔聚氨酯材料溶液涂布针刺膜。 这种膜有利地体现在回肠造口袋中，并且通过热或RF焊接操作被固定到位于其中以防止粪便物质接触袋式过滤器的位置的位置，通过该操作将聚烯烃焊接到携带有袋的袋壁 过滤器。 在使用中，聚氨酯暴露于袋内容物，并允许气体通过，但防止任何液体到达过滤器。

    Highly aromatic polyurea/urethane membranes and their use of the separation of aromatics from non-aromatics
    28.
    发明授权
    Highly aromatic polyurea/urethane membranes and their use of the separation of aromatics from non-aromatics 失效
    高芳香族聚脲/氨基甲酸乙酯膜以及芳烃与非芳族化合物的分离

    公开(公告)号：US5063186A

    公开(公告)日：1991-11-05

    申请号：US336172

    申请日：1989-04-11

    申请人： Robert C. Schucker

    发明人： Robert C. Schucker

    IPC分类号： B01D71/54 ,  B01J20/28 ,  C08G18/10 ,  C10G31/11

    CPC分类号： C10G31/11 ,  B01D71/76 ,  C08G18/10 ,  B01D71/54

    摘要： A new membrane for the separation of aromatic hydrocarbons from mixtures of said aromatic hydrocarbons and non-aromatic hydrocarbons has been prepared comprising a highly aromatic polyurethane membrane. These highly aromatic polyurea/urethane membranes are symmetric, dense film membranes made from the corresponding polyurea/urethane copolymers by standard membrane casting techniques. The polyurea/urethane copolymers are produced by reacting dihydroxy or polyhydroxy compounds, such as polyethers or polyesters having molecular weights in the range of about 500 to 5000 with aliphatic, alkylaromatic or aromatic diisocyanates or polyisocyanates and low molecular weight chain extenders, such as diamines, polyamines or amino alcohols.The membrane made from the polyurea/urethane copolymer, useful for the separation of aromatics from mixtures thereof with non-aromatics, in, for example, a naphtha feed stream, is characterized by possessing a urea index of at least about 20% but less than 100%, an aromatic carbon content of at least about 15 mole percent, a functional group density of at least about 10 per 1000 grams of polymer and a C.dbd.O/NH ratio of less than about 8.0.As stated, these membranes are useful for separating aromatics, from non-aromatics in petroleum refining and chemical applications.

    摘要翻译： 已经制备了用于从所述芳烃和非芳族烃的混合物中分离芳族烃的新膜，其包含高度芳族聚氨酯膜。 这些高度芳香的聚脲/聚氨酯膜是通过标准膜浇铸技术由对应的聚脲/氨基甲酸酯共聚物制成的对称致密膜。 聚脲/氨基甲酸酯共聚物通过使二羟基或多羟基化合物，例如分子量在约500至5000范围内的聚醚或聚酯与脂族，烷基芳族或芳族二异氰酸酯或多异氰酸酯和低分子链增链剂如二胺， 多胺或氨基醇。 由聚脲/氨基甲酸酯共聚物制成的膜可用于将芳族化合物与其与非芳族化合物的混合物在例如石脑油进料流中分离，其特征在于具有至少约20％但小于 100％，芳族碳含量为至少约15摩尔％，官能团密度为每1000克聚合物至少约10个，C = O / NH比小于约8.0。 如所述，这些膜可用于分离芳族化合物，与石油精炼和化学应用中的非芳族化合物。

    Multi-block polymer comprising a urea prepolymer chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations
    29.
    发明授权
    Multi-block polymer comprising a urea prepolymer chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations 失效
    包含由相容的第二预聚物延伸的脲预聚物链的多嵌段聚合物，由其制成的膜及其在分离中的用途

    公开(公告)号：US5039422A

    公开(公告)日：1991-08-13

    申请号：US624160

    申请日：1990-12-06

    申请人： Robert C. Schucker

    发明人： Robert C. Schucker

    IPC分类号： B01D71/54 ,  B01D71/80 ,  C08L63/00 ,  C10G31/11

    CPC分类号： C10G31/11 ,  B01D71/54 ,  B01D71/80 ,  C08L63/00

    摘要： The present invention is directed to a process of using a multi-block polymeric material comprising a urea prepolymer chain extended with a second compatible prepolymer selected from the group of prepolymers comprising (a) an (A) dianhydride or its corresponding tetraacid or diacid-diester combined with a monomer selected from (B) epoxy, diisocyanate, polyester, and diamine in an A/B mole ratio ranging from about 2.0 to 1.05, preferably about 2.0 to 1.1, and (b) an (A) diamine combined with a monomer selected from (B) epoxy and dianhydride or its corresponding tetraacid or diacid-diester in an A/B mole ratio ranging from about 2.0 to 1.05, preferably about 2.0 to 1.1, and mixtures thereof.

    摘要翻译： 本发明涉及一种使用多嵌段聚合物材料的方法，所述多嵌段聚合物材料包含延伸有选自包含（a）（A）二酐或其相应的四酸或二酸二酯的预聚物的第二相容性预聚物的脲预聚物链 与选自（B）环氧树脂，二异氰酸酯，聚酯和二胺的单体组合，A / B摩尔比为约2.0至1.05，优选约2.0至1.1，和（b）（A）二胺与单体 选自（B）环氧和二酐或其相应的四酸或二酸二酯，其A / B摩尔比为约2.0至1.05，优选约2.0至1.1，及其混合物。

    Membrane made from a multi-block polymer comprising an oxazolidone prepolymer chain extended with a compatible second prepolymer and its use in separations
    30.
    发明授权
    Membrane made from a multi-block polymer comprising an oxazolidone prepolymer chain extended with a compatible second prepolymer and its use in separations 失效
    由包含与相容的第二预聚物延伸的恶唑烷酮预聚物链的多嵌段聚合物制成的膜及其在分离中的用途

    公开(公告)号：US5039418A

    公开(公告)日：1991-08-13

    申请号：US624161

    申请日：1990-12-06

    申请人： Robert C. Schucker

    发明人： Robert C. Schucker

    IPC分类号： B01D61/36 ,  B01D71/54 ,  B01D71/56 ,  B01D71/62 ,  B01D71/80 ,  C08G18/00 ,  C08G18/10 ,  C08G18/58 ,  C08G18/65 ,  C08G59/14 ,  C10G31/11

    CPC分类号： C08G18/003 ,  B01D71/62 ,  B01D71/80 ,  C10G31/11

    摘要： A multi-block polymer comprising an oxazolidone prepolymer chain extended with a second compatible prepolymer, the membrane made therefrom and the use of said membrane in aromatics/non-aromatics separations is disclosed. The multi-block polymer comprises an oxazolidone containing prepolymer chain extended with a second compatible prepolymer, said second prepolymer selected from the group of prepolymers produced by combining (a) and (A) diisocyanate with a monomer selected from (B) polyester dianhydride or corresponding tetraacid or diacid-diester, and diamine in an A/B mole ratio ranging from about 2.0 to 1.05, preferably 2.0 to 1.1; (b) an (A) dianhydride or its corresponding tetraacid or diacid-diester with a monomer selected from (B) epoxy, diisocyanate, polyester and diamine in an A/B mole ratio ranging from about 2.0 to 1.05, preferably about 2.0 to 1.1, or (c) an (A) diamine with a monomer selected from (B) epoxy, diisocyanate, dianhydride, or its corresponding tetraacid or diacid-diester in an A/B mole ratio ranging from about 2.0 to 1.05, preferably about 2.0 to 1.1, and mixtures thereof. The membranes made from these multi-block polymers comprising thin dense films of said polymer deposited on a micro-porous support are also claimed. The membranes are useful for separating aromatic hydrocarbons from mixtures of same with non-aromatic hydrocarbons under perstraction or pervaporation conditions.

    摘要翻译： 公开了一种多嵌段聚合物，其包含与第二相容性预聚物延伸的恶唑烷酮预聚物链，由其制成的膜以及所述膜在芳族化合物/非芳烃分离中的用途。 多嵌段聚合物包括含有与第二相容性预聚物延伸的含恶唑烷酮的预聚物链，所述第二预聚物选自由（A）和（A）二异氰酸酯与选自（B）聚酯二酐或相应的 四酸或二酸二酯和A / B摩尔比范围为约2.0至1.05，优选2.0至1.1的二胺; （b）一种（A）二酐或其相应的四酸或二酸二酯与选自（B）环氧，二异氰酸酯，聚酯和二胺的单体，A / B摩尔比范围为约2.0至1.05，优选约2.0至1.1 ，或（c）具有选自（B）环氧基，二异氰酸酯，二酐或其相应的四酸或二酸二酯的单体的（A）二胺，其A / B摩尔比为约2.0至1.05，优选约2.0至 1.1及其混合物。 还要求保护由包含沉积在微孔载体上的所述聚合物的薄致密膜的这些多嵌段聚合物制成的膜。 该膜可用于在芳构烃或非蒸发条件下将芳烃与非芳族烃的混合物分离。