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    • 1. 发明授权
    • Composite magnetic beads
    • 复合磁珠
    • US5834121A
    • 1998-11-10
    • US585905
    • 1996-01-16
    • Irving SucholeikiGraham MargettsMark Roberts
    • Irving SucholeikiGraham MargettsMark Roberts
    • B03C1/01C02F1/48C02F1/68G01N33/543H01F1/00H01F1/37B32B5/16B05D7/00
    • B82Y25/00B03C1/01C02F1/681G01N33/5434H01F1/37C02F1/48G01N2446/20G01N2446/40G01N2446/86Y10S428/90Y10T428/2998
    • This invention provides a novel composite magnetic bead and a method for making the composite magnetic bead. The composite magnetic bead is comprised of a matrix formed from vinyl monomers throughout which is distributed primary beads, each primary bead of which is a magnetizable metal oxide encapsulated in a rigid polymeric coating. The matrix structure allows the composite magnetic bead to swell in organic solvents without loss of the intermeshed primary beads. Further, the matrix can be functionalized to allow the covalent bonding of sites useful for organic syntheses. The composite magnetic beads are made utilizing a core-shell polymerization techinque under conditions which preserve the oxidation state of the magnetizable metal oxide in the primary particles. In one embodiment, primary beads, each having a hydrophobic exterior surface, are dispersed in an inert solvent with a vinyl monomer and a crosslinking agent for that monomer to form a dispersed phase. The dispersed phase is mixed into an aqueous solvent-dispersing agent phase and stirred until the desired droplet size is achieved, then polymerization is initiated. After removal of the solvent and unreacted components, the composite magnetic beads are dried and sieved.
    • 本发明提供一种新型复合磁珠及其制造方法。 复合磁珠由由乙烯基单体形成的基体组成,其中分布有初级珠,每个主珠是包封在刚性聚合物涂层中的可磁化金属氧化物。 基体结构允许复合磁珠在有机溶剂中溶胀而不损失相互啮合的初级珠粒。 此外,基质可以官能化以允许有机合成有用的位点的共价键。 在保持一次颗粒中的可磁化金属氧化物的氧化态的条件下,使用核 - 壳聚合技术制备复合磁珠。 在一个实施方案中,每个具有疏水性外表面的初级珠粒分散在具有乙烯基单体和用于该单体的交联剂的惰性溶剂中以形成分散相。 将分散相混合到水性溶剂分散剂相中并搅拌直到达到所需的液滴尺寸,然后开始聚合。 除去溶剂和未反应的组分后,将复合磁珠干燥并过筛。
    • 3. 发明授权
    • Magnetically attachable and detachable panel system
    • 磁性可拆卸面板系统
    • US07843295B2
    • 2010-11-30
    • US12478911
    • 2009-06-05
    • Larry W. FullertonMark RobertsJames Lee Richards
    • Larry W. FullertonMark RobertsJames Lee Richards
    • H01F7/20H01F7/02A44B1/04
    • G09F7/04H01F7/0263Y10T24/32Y10T29/49826Y10T29/4998
    • A panel having a magnetic mounting that utilizes a plurality of magnets in a magnet structure that allows high magnetic force when the panel is installed and the magnet structure is aligned while permitting removal using relatively light force applied to misalign the magnet structure to allow removal. In one embodiment, the magnet structure can provide precision positioning of the panel to a position on the order of the width of a single component magnet of the magnet structure. In another embodiment, the magnet structure may be misaligned for removal by a rotation of the magnet structure. In a further embodiment, the misalignment may be achieved by a lateral shift of the magnet structure. The invention may be adapted to a wide variety of panels including but not limited to doors, window coverings, storm coverings, seasonal covering panels, baby gates, white boards, and green house panels.
    • 一种具有磁性安装件的面板,其利用磁体结构中的多个磁体,当安装面板时允许高磁力并且磁体结构对准,同时允许使用相对较轻的力去除磁体结构以使其移除以取消对准。 在一个实施例中,磁体结构可以将面板精确地定位到磁体结构的单个部件磁体宽度的位置上。 在另一个实施例中,磁体结构可能不对准,以通过磁体结构的旋转来移除。 在另一实施例中,可以通过磁体结构的横向偏移来实现未对准。 本发明可以适用于各种面板,包括但不限于门,窗帘,风暴覆盖物,季节性覆盖板,婴儿门,白板和温室板。
    • 9. 发明申请
    • Integrated process for the manufacture of alkenyl carboxylates
    • 用于制备链烯基羧酸盐的综合方法
    • US20050020847A1
    • 2005-01-27
    • US10500305
    • 2002-12-04
    • Robert ClarkeMark Roberts
    • Robert ClarkeMark Roberts
    • C07C67/05C07B61/00C07C51/215C07C53/08C07C67/00C07C67/54C07C69/01C07C69/15
    • C07C67/54C07C5/48C07C51/215C07C51/46C07C67/055Y02P20/125Y02P20/582C07C69/15C07C53/08C07C11/04
    • An integrated process for the production of an alkenyl carboxylate, such as vinyl acetate which process comprises the steps of (a) contacting in an oxidation reaction zone a C2 to C4 alkane, such as ethane, a molecular oxygen-containing gas, optionally the corresponding alkene and optionally water, in the presence of a catalyst to produce a stream comprising alkene, carboxylic acid and water; (b) separating at least a portion of the stream from step (a) into a fraction comprising the alkene and a fraction comprising the carboxylic acid and water; (c) contacting in a second reaction zone at least a portion of said alkene fraction produced in step (b), a carboxylic acid and a molecular oxygen-containing gas, in the presence of a catalyst to produce a product stream comprising an alkenyl carboxylate, water and carboxylic acid; (d) separating at least a portion of the product stream from step (c) and at least a portion of the carboxylic acid and water fraction produced in step (b) by azeotropic distillation into an overhead fraction comprising the alkenyl carboxylate and a base fraction comprising the carboxylic acid; (e) recovering the alkenyl carboxylate from the overhead fraction separated in step (d).
    • 一种用于生产烯基羧酸酯如乙酸乙烯酯的整合方法,其方法包括以下步骤:(a)在氧化反应区中使C2至C4烷烃如乙烷,含分子氧的气体,任选相应的 烯烃和任选的水,在催化剂的存在下,产生包含烯烃,羧酸和水的流; (b)将来自步骤(a)的物流的至少一部分分离成包含烯烃的馏分和包含羧酸和水的级分; (c)在第二反应区中在催化剂存在下使步骤(b)中产生的所述烯烃馏分的至少一部分与羧酸和含分子氧的气体接触以产生包含链烯基羧酸酯的产物流 ,水和羧酸; (d)通过共沸蒸馏将步骤(c)中的产物流的至少一部分和步骤(b)中产生的羧酸和水部分的至少一部分分离成包含烯基羧酸酯和碱部分的塔顶馏分 包含羧酸; (e)从步骤(d)中分离的塔顶馏分回收烯基羧酸酯。