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15 条记录 (耗时 0.023 秒)

    Membranes containing microporous structure
    4.
    发明授权
    Membranes containing microporous structure 失效
    含微孔结构的膜

    公开(公告)号：US4775474A

    公开(公告)日：1988-10-04

    申请号：US936547

    申请日：1986-12-01

    申请人： Chieh-Chun Chau ,  Charles E. Reineke ,  Lu H. Tung ,  Edward J. Kramer

    发明人： Chieh-Chun Chau ,  Charles E. Reineke ,  Lu H. Tung ,  Edward J. Kramer

    IPC分类号： B01D67/00 ,  C08J7/02 ,  B01D13/00

    CPC分类号： B01D67/0093 ,  B01D67/0023 ,  B01D69/02 ,  C08J7/02 ,  B01D2323/30 ,  B01D2323/385 ,  B01D2325/022

    摘要： Asymmetric membranes are prepared by treating a major surface of a glassy polymer composition to render the surface resistant to solvent crazing and then contacting the glassy polymer composition with a crazing solvent. The crazing solvent permanently deforms the glassy polymer composition by forming a microporous structure on the untreated surface. The treated surface becomes the dense, discriminating layer of the membrane which achieves desirable permeation selectivity. The methods of treatment are (1) crosslinking, (2) providing an agent which renders the surface resistant to crazing, and (3) providing an agent which reacts with the surface. Additionally, the glassy polymer composition can be crosslinked before or after it is crazed to increase the mechanical strength of the membrane.

    摘要翻译： 通过处理玻璃状聚合物组合物的主表面以使表面耐溶剂裂纹，然后使玻璃状聚合物组合物与裂纹溶剂接触来制备不对称膜。 裂纹溶剂通过在未处理的表面上形成微孔结构而使玻璃状聚合物组合物永久变形。 经处理的表面变成膜的致密区分层，达到理想的渗透选择性。 处理方法是（1）交联，（2）提供使表面耐龟裂的试剂，和（3）提供与表面反应的试剂。 此外，玻璃状聚合物组合物可以在其被蠕动之前或之后交联以增加膜的机械强度。

    Char-forming thermoplastic compositions
    6.
    发明授权
    Char-forming thermoplastic compositions 失效
    成型热塑性组合物

    公开(公告)号：US4360609A

    公开(公告)日：1982-11-23

    申请号：US334870

    申请日：1981-12-28

    申请人： Charles E. Reineke ,  Kent S. Dennis

    发明人： Charles E. Reineke ,  Kent S. Dennis

    IPC分类号： C08K5/43 ,  C09K3/28

    CPC分类号： C08K5/43

    摘要： The char-forming characteristics of vinyl aromatic polymers are improved by the incorporation therein of (1) active allyl and/or benzyl carbon moieties and (2) an arylsulfonate ester. In an example, a styrenic polymer comprising polyvinylbenzylacetate is given increased char-forming ability by the presence of pentaerythritol parabromobenzenesulfonate.

    摘要翻译： 乙烯基芳族聚合物的成炭特性通过（1）活性烯丙基和/或苄基碳部分和（2）芳基磺酸酯酯的结合而改进。 在一个实例中，包含聚乙烯基苄基乙酸酯的苯乙烯聚合物通过存在季戊四醇对溴苯磺酸盐而增加了形成炭的能力。

    Stabilized aqueous amide antimicrobial composition
    9.
    发明授权
    Stabilized aqueous amide antimicrobial composition 失效
    稳定的含水酰胺抗菌组合物

    公开(公告)号：US4163798A

    公开(公告)日：1979-08-07

    申请号：US860642

    申请日：1977-12-14

    申请人： George A. Burk ,  Charles A. Wilson ,  Charles E. Reineke

    发明人： George A. Burk ,  Charles A. Wilson ,  Charles E. Reineke

    IPC分类号： A01N25/22 ,  A01N37/18 ,  A01N37/30 ,  A01N37/34 ,  A01N9/20

    CPC分类号： A01N37/30 ,  A01N25/22 ,  A01N37/34

    摘要： Aqueous antimicrobial compositions which comprise a halogenated amide antimicrobial, such as 2,2-dibromonitrilopropionamide, a water miscible organic solvent such as a straight chain polyalkylene glycol (e.g., polyethylene glycol 200) or an ether thereof (e.g., a mono- or di- lower alkyl and/or phenyl ether) and water are stabilized against decomposition of the halogenated amide antimicrobial by the addition of an aldehyde stabilizer, such as formaldehyde, paraformaldehyde, N-formyl piperidine, vanillin, etc. The compositions so stabilized exhibit reduced rates of decomposition of the halogenated amide antimicrobial relative to the corresponding non-stabilized aqueous compositions.

    摘要翻译： 包含卤代酰胺抗微生物剂如2,2-二溴三氟丙酰胺，水混溶性有机溶剂如直链聚亚烷基二醇（例如聚乙二醇200）或其醚（例如，单 - 或二 - 低级烷基和/或苯基醚）和水通过加入醛稳定剂如甲醛，多聚甲醛，N-甲酰基哌啶，香草醛等来稳定，防止卤代酰胺抗微生物分解。如此稳定的组合物表现出降低的速率 相对于相应的非稳定的水性组合物，卤代酰胺的分解可抑制。

    Stabilized aqueous amide antimicrobial composition
    10.
    发明授权
    Stabilized aqueous amide antimicrobial composition 失效
    稳定的含水酰胺抗菌组合物

    公开(公告)号：US4163797A

    公开(公告)日：1979-08-07

    申请号：US860541

    申请日：1977-12-14

    申请人： George A. Burk ,  Charles E. Reineke

    发明人： George A. Burk ,  Charles E. Reineke

    IPC分类号： A01N25/22 ,  A01N37/30 ,  A01N37/34 ,  A01N9/20

    CPC分类号： A01N37/30 ,  A01N25/22 ,  A01N37/34

    摘要： Aqueous antimicrobial compositions which comprise a halogenated amide antimicrobial, such as 2,2-dibromonitrilopropionamide, a water miscible organic solvent such as a straight chain polyalkylene glycol (e.g., polyethylene glycol 200) or an ether thereof (e.g., a mono- or di-lower alkyl and/or phenyl ether) and water are stabilized against decomposition of the halogenated amide antimicrobial by the addition of a carbamoyl or sulfamoyl stabilizer, such as dimethyl formamide, sulfamide, urea, oxamide, biuret, caprolactam, succinimide, etc. The compositions, so stabilized, exhibit reduced rates of decomposition of the halogenated amide antimicrobial relative to the corresponding non-stabilized aqueous compositions.

    摘要翻译： 包含卤代酰胺抗微生物剂如2,2-二溴三氟丙酰胺，水混溶性有机溶剂如直链聚亚烷基二醇（例如聚乙二醇200）或其醚（例如，单 - 或二 - 低级烷基和/或苯基醚）和水通过加入氨基甲酰基或氨磺酰基稳定剂如二甲基甲酰胺，磺酰胺，脲，草酰胺，缩二脲，己内酰胺，琥珀酰亚胺等来稳定，防止卤代酰胺抗微生物分解。组合物 如此稳定，表现出相对于相应的非稳定水性组合物的卤化酰胺抗微生物分解速率降低。