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    Compositions using high-potassium zeolite A
    21.
    发明授权
    Compositions using high-potassium zeolite A 失效

    公开(公告)号：US5773380A

    公开(公告)日：1998-06-30

    申请号：US451629

    申请日：1995-05-26

    Applicant: James Neil Pryor

    Inventor： James Neil Pryor

    IPC: B01D53/28 ,  B01J20/18 ,  C09J11/04 ,  E06B3/677 ,  B01J29/04

    CPC classification number: B01D53/28 ,  B01J20/183 ,  C09J11/04 ,  E06B3/677

    Abstract: High potassium zeolite A particles are used to overcome problems of zeolite degassing (and/or undesired gas adsorption/desorption), especially when loaded into organic matrices. The zeolite A particles preferably have a potassium content (measured as K.sub.2 O) of at least about 14 wt. %, more preferably 15-25 wt. %. Compositions containing the high potassium zeolite A in an organic matrix may be especially suitable for use in insulating glass window spacer applications. The high potassium zeolite A may also be used in other conventional desiccant forms.

    Dispersion of fine porous inorganic oxide particles and processes for preparing same
    26.
    发明授权
    Dispersion of fine porous inorganic oxide particles and processes for preparing same 有权
    细多孔无机氧化物颗粒的分散及其制备方法

    公开(公告)号：US06380265B1

    公开(公告)日：2002-04-30

    申请号：US09343842

    申请日：1999-06-30

    Applicant: James Neil Pryor ,  David Monroe Chapman

    Inventor： James Neil Pryor ,  David Monroe Chapman

    IPC: B01F312

    CPC classification number: C01B33/141

    Abstract: A dispersion comprising fine porous inorganic oxide particles, e.g., silica gel particles, wherein the particles have a median particle size below three microns. The dispersed particles have a porosity after drying in which at least about 0.50 cc/g of pore volume is from pores having a pore size of 600 Å or less as determined by nitrogen porosimetry. Embodiments prepared from silica gel have porosity after drying in which at least about 0.7 cc/g of pore volume is from pores having a diameter of 600 Å or smaller. The particles of the dispersion also can be described as having viscosity derived pore volume of at least about 0.5 g/cc. The dispersion is prepared by forming a dispersion from inorganic oxides having sufficient rigid structure to maintain porosity after milling and drying. After the inorganic oxide is selected, it is milled to have a median particle size of 0.05 to about 3 microns. In embodiments in which stable dispersions of fine porous particles are desired without the addition of substantial amounts of dispersant, or if dispersions having a median particle size less than one micron are desired, the dispersion is created by, for example, centrifuging the milled slurry to obtain a settled phase and a supernatant phase in which the median particle size is in the range of 0.05 to about 1 micron. The supernatant phase is then separated from the settled phase to create the final product.

    Abstract translation: 包含细小的多孔无机氧化物颗粒的分散体，例如硅胶颗粒，其中颗粒具有低于3微米的中值粒度。 分散的颗粒在干燥后具有孔隙率，其中孔体积至少约0.50cc / g来自通过氮气孔率法测定的孔径为600埃或更小的孔。 由硅胶制备的实施例在干燥后具有多孔性，其中至少约0.7cc / g的细孔体积是直径为600或更小的孔。 分散体的颗粒也​​可以被描述为具有至少约0.5g / cc的粘度导出孔体积。 通过从具有足够刚性结构的无机氧化物形成分散体以在研磨和干燥后保持孔隙率来制备分散体。 在选择无机氧化物之后，将其研磨成具有0.05至约3微米的中值粒度。 在不需要添加大量分散剂的情况下需要微细多孔颗粒的稳定分散的实施方案中，或者如果需要具有小于1微米的中值粒径的分散体，则通过例如将研磨的浆料离心至 获得沉淀相和上清液相，其中中值粒度在0.05至约1微米的范围内。 然后将上清液相从沉降相分离以产生最终产物。

    Compositions using high-potassium zeolite A
    27.
    发明授权
    Compositions using high-potassium zeolite A 失效
    使用高钾沸石A的组合物

    公开(公告)号：US6037293A

    公开(公告)日：2000-03-14

    申请号：US103049

    申请日：1998-06-22

    Applicant: James Neil Pryor

    Inventor： James Neil Pryor

    IPC: B01D53/28 ,  B01J20/18 ,  C09J11/04 ,  E06B3/677 ,  B01J29/04

    CPC classification number: B01D53/28 ,  B01J20/183 ,  C09J11/04 ,  E06B3/677

    Abstract: High potassium zeolite A particles are used to overcome problems of zeolite degassing (and/or undesired gas adsorption/desorption), especially when loaded into organic matrices. The zeolite A particles preferably have a potassium content (measured as K.sub.2 O) of at least about 14 wt. %, more preferably 15-25 wt. %. Compositions containing the high potassium zeolite A in an organic matrix may be especially suitable for use in insulating glass window spacer applications. The high potassium zeolite A may also be used in other conventional desiccant forms.

    Abstract translation: 高钾沸石A颗粒用于克服沸石脱气（和/或不期望的气体吸附/脱附）的问题，特别是当加载到有机基质中时。 沸石A颗粒优选具有至少约14重量％的钾含量（以K 2 O计）。 ％，更优选15-25wt。 ％。 在有机基质中含有高钾沸石A的组合物可能特别适合用于隔热玻璃间隔物应用。 高沸点沸石A也可用于其它常规的干燥剂形式。

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