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13 条记录 (耗时 0.011 秒)

    Antithrombogenic surfaces, their preparation, and materials therefore
    1.
    发明公开
    Antithrombogenic surfaces, their preparation, and materials therefore 失效
    AntithrombogeneOberflächeund Verfahren und Material zu ihrer Herstellung。

    公开(公告)号：EP0484057A2

    公开(公告)日：1992-05-06

    申请号：EP91309856.2

    申请日：1991-10-24

    申请人： THE DOW CHEMICAL COMPANY

    发明人： Walles, Wilhelm E.

    IPC分类号： A61L33/00

    CPC分类号： A61L33/0011 ,  A61L33/08 ,  C08L5/08

    摘要： An aqueous paint used to coat a solid substrate to render the surface thereof antithrombogenic comprises an antithrombogenic agent, a non-blood leachable organic polymeric binder and, optionally; a spacer material. Preferably, the aqueous paint contains water, a base, heparin, ethylene acrylic acid copolymer, and colloidal silica. A polymeric resin substrate can be sulfonated prior to coating and/or a coated substrate can be treated with a non-blood leachable bonding agent, especially glutaraldehyde.

    摘要翻译： 用于涂覆固体基质以使其表面抗血栓形成的水性涂料包含抗血栓形成剂，非血液可浸出的有机聚合物粘合剂和任选的; 间隔材料。 优选地，水性涂料含有水，碱，肝素，乙烯丙烯酸共聚物和胶体二氧化硅。 聚合物树脂基材可以在涂覆之前被磺化，和/或涂覆的基材可以用非血液浸出粘合剂，特别是戊二醛处理。

    Controlled-release compositions for acids
    2.
    发明公开
    Controlled-release compositions for acids 失效
    Zusammensetzungen mit kontrollierter Freisetzung vonSäuren。

    公开(公告)号：EP0454881A1

    公开(公告)日：1991-11-06

    申请号：EP90108312.1

    申请日：1990-05-02

    申请人： THE DOW CHEMICAL COMPANY

    发明人： Walles, Wilhelm E. ,  Tomkinson, Donald L.

    IPC分类号： B01J13/04 ,  B01J19/06

    CPC分类号： C09K8/72 ,  B01J4/04 ,  B01J13/04 ,  Y10S507/902 ,  Y10S507/933 ,  Y10T428/2989

    摘要： A controlled release, encapsulated acid composition and a method of preparation are disclosed. The composition comprises (1) a porous matrix having an acid absorbed therein, the matrix being substantially inert to the absorbed acid; (2) a midlayer surrounding the matrix, this midlayer consisting essentially of at least one salt of the absorbed acid; and (3) a membrane surrounding the matrix, the membrane being exterior of the midlayer, the membrane further being substantially inert to the midlayer and permeable to a selected environment. The membrane preferably also includes particulate material which acts as an anticoalescent.
    The midlayer can be applied as a coating to the acid-bearing matrix, or it can be evolved by exposing the acid-bearing matrix to a base such as ammonia gas or a solid metal oxide for a time sufficient to allow reaction of a proportion of the acid at or near the surface of the matrix with the base or oxide to form a layer of the corresponding salt.

    摘要翻译： 公开了控释，包封的酸组合物和制备方法。 所述组合物包含（1）其中吸收有酸的多孔基质，所述基质对被吸收的酸基本上是惰性的; （2）围绕基质的中间层，该中间层基本上由至少一种被吸收的酸的盐组成; 和（3）围绕所述基质的膜，所述膜位于所述中间层的外部，所述膜对于所述中间层基本上是惰性的并且对所选择的环境是可渗透的。 膜优选还包括充当抗结晶剂的颗粒材料。 中间层可以作为涂层施加到含酸基质上，或者它可以通过将含酸基质暴露于碱如氨气或固体金属氧化物进行足够长的时间，以使一部分 在基体表面或附近的酸与碱或氧化物形成一层相应的盐。

    Apparatus and process for the generation of sulfur trioxide reagent for sulfonation of the surface of polymeric resins
    3.
    发明公开
    Apparatus and process for the generation of sulfur trioxide reagent for sulfonation of the surface of polymeric resins 失效
    装置和用于产生三氧化硫试剂用于磺化聚合物树脂的表面的方法。

    公开(公告)号：EP0340617A2

    公开(公告)日：1989-11-08

    申请号：EP89107557.4

    申请日：1989-04-26

    申请人： THE DOW CHEMICAL COMPANY

    发明人： Walles, Wilhelm E. ,  Tomkinson, Donald L. ,  Near, David R.

    IPC分类号： C01B17/69 ,  C08J7/14

    CPC分类号： C01B17/69 ,  Y02P20/582

    摘要： The present invention provides an apparatus and process for generating a reagent solution of sulfur trioxide in a carrier. The apparatus includes a reagent generator which has associated therewith means for introducing sulfur trioxide from a source into the reagent generator, means for introducing a carrier such as a liquid halocarbon or a gas which is nonreactive with the sulfur trioxide into the reagent generator, and means for introducing oleum into the reagent generator. The sulfur trioxide, carrier and oleum are contacted in the reagent generator to provide a reagent solution of sulfur trioxide in the carrier. Additionally, the apparatus includes means for removing oleum from the reagent generator, as well as means for removing the reagent solution from the reagent generator. In a preferred embodiment, the apparatus for generating the reagent solution also includes, in conjunction with the reagent generator, a treatment chamber for the surface treatment of polymeric resinous material including medical products which have polymeric resinous material on exposed surfaces thereof.

    摘要翻译： 本发明提供的装置和方法，用于产生三氧化硫于载体中的试剂溶液。 该装置包括具有与装置相关联有用于从源引入三氧化硫到试剂发生器的试剂发生器的装置，用于将载：诸如液体卤化碳或气体，所有这些是不反应与三氧化硫到试剂发生器，以及装置 用于引入发烟硫酸到试剂发生器。 三氧化硫，载体和发烟硫酸接触在试剂发生器以提供三氧化硫的在载体中的试剂溶液。 另外，该装置包括用于从所述试剂发生器用于去除来自试剂发生器的试剂溶液中除去发烟硫酸，以及装置的装置。 在优选实施例中，用于产生所述试剂溶液中的装置因此包括，在与试剂发生器，一个处理室，用于包含暴露的表面上有哪些聚合物树脂材料及其医疗产品的聚合树脂材料的表面处理契合。

    In mold sulfonation system
    5.
    发明公开
    In mold sulfonation system 失效
    模具硫化系统

    公开(公告)号：EP0356966A3

    公开(公告)日：1991-07-24

    申请号：EP89115854.5

    申请日：1989-08-28

    申请人： THE DOW CHEMICAL COMPANY

    发明人： Walles, Wilhelm E. ,  Tomkinson, Donald L.

    IPC分类号： B29C49/46 ,  C08J7/14

    CPC分类号： B29C49/46 ,  B29K2023/06 ,  B29K2995/0067 ,  B29L2031/7172 ,  C08J7/12

    摘要： An in-mold sulfonation system for sulfonating the surface of plastic articles such as plastic containers during molding. Sulfur trioxide is introduced into a pre-mold chamber, converted to a realtively high pressure gaseous sulfur trioxide, and then injected into a mold such as a blow mold immediately before or immediately following full expansion of the formed plastic article in the mold cavity. Neutralization with a gaseous neutralizing agent follows. By controlling the timing and temperature of the in-mold sulfonation step it is possible to produce a plastic article having an effective barrier layer but containing a minimum of undesirable rinseable salts.

    Treatment of the interior surfaces of resinous enclosure members
    6.
    发明公开
    Treatment of the interior surfaces of resinous enclosure members 失效
    处理环氧树脂成员的内部表面

    公开(公告)号：EP0221591A3

    公开(公告)日：1988-08-17

    申请号：EP86201731

    申请日：1986-10-06

    申请人： THE DOW CHEMICAL COMPANY

    发明人： Walles, Wilhelm E.

    IPC分类号： C08J07/12 ,  C08F08/36

    CPC分类号： C08J7/14

    摘要： Plastic containers are treated to provide increased barrier properties to organics and gases such as oxygen by treating the interior surface of the container with SO 3 gas. The SO 3 gas is provided by inserting a solid pellet of poly-SO 3 into the container and evaporating the S0 3 such as with microwave energy. A solid neutralizing agent such as ammonium carbonate is then placed into the container and evaporated with microwave energy to form ammonia which neutralizes the sulfonic acid groups on the surface interior of the container.

    In mold sulfonation system
    9.
    发明公开
    In mold sulfonation system 失效
    Systemfürdas Sulfonieren in der Form。

    公开(公告)号：EP0356966A2

    公开(公告)日：1990-03-07

    申请号：EP89115854.5

    申请日：1989-08-28

    申请人： THE DOW CHEMICAL COMPANY

    发明人： Walles, Wilhelm E. ,  Tomkinson, Donald L.

    IPC分类号： B29C49/46 ,  C08J7/14

    CPC分类号： B29C49/46 ,  B29K2023/06 ,  B29K2995/0067 ,  B29L2031/7172 ,  C08J7/12

    摘要： An in-mold sulfonation system for sulfonating the surface of plastic articles such as plastic containers during molding. Sulfur trioxide is introduced into a pre-mold chamber, converted to a realtively high pressure gaseous sulfur trioxide, and then injected into a mold such as a blow mold immediately before or immediately following full expansion of the formed plastic article in the mold cavity. Neutralization with a gaseous neutralizing agent follows. By controlling the timing and temperature of the in-mold sulfonation step it is possible to produce a plastic article having an effective barrier layer but containing a minimum of undesirable rinseable salts.

    摘要翻译： 用于在模塑过程中磺化塑料制品如塑料容器表面的模内磺化体系。 将三氧化硫引入预模具室中，转化为强制性高压气态三氧化硫，然后在形成的塑料制品在模具腔中的完全膨胀之前或之后立即注入到诸如吹塑模具的模具中。 使用气体中和剂进行中和。 通过控制模内磺化步骤的时间和温度，可以生产具有有效阻隔层但含有最少不期望的可漂洗盐的塑料制品。