Method of making a cellulose acetate low density microcellular foam
    61.
    发明授权
    Method of making a cellulose acetate low density microcellular foam 失效
    制造醋酸纤维素低密度微孔泡沫的方法

    公开(公告)号:US4118449A

    公开(公告)日:1978-10-03

    申请号:US749205

    申请日:1976-12-09

    Applicant: James A. Rinde

    Inventor: James A. Rinde

    Abstract: Low-density microcellular foam having a cell size of not greater than 2 .mu.m and method of making by dissolving cellulose acetate in an acetone-based solvent, gelling the solution in a water bath maintained at 0-10.degree. C for a selected period of time to allow impurities to diffuse out, freezing the gel, and then freeze-drying wherein water and solvents sublime and the gel structure solidifies into low-density microcellular foam. The foam has a density of 0.065 to 0.6.times.10.sup.3 kg/m.sup.3 and cell size of about 0.3 to 2 .mu.m. The small cell size foam is particularly adaptable for encapsulation of laser targets.

    Abstract translation: 细胞尺寸不大于2μm的低密度微孔泡沫体和通过将乙酸纤维素溶解在丙酮溶剂中制备的方法,将溶液凝胶保持在0-10℃的水浴中一段选定时间 时间允许杂质扩散出来,冷冻凝胶,然后冷冻干燥,其中水和溶剂升华,凝胶结构固化成低密度微孔泡沫。 泡沫体的密度为0.065〜0.6×10 3 kg / m 3,电池尺寸为0.3〜2μm左右。 小泡沫泡沫特别适用于激光靶的封装。

    Method for foam encapsulating laser targets
    62.
    发明授权
    Method for foam encapsulating laser targets 失效
    泡沫封装激光靶的方法

    公开(公告)号:US4034032A

    公开(公告)日:1977-07-05

    申请号:US609640

    申请日:1975-09-02

    Abstract: Foam encapsulated laser fusion targets are made by positioning a fusion fuel-filled sphere within a mold cavity of suitable configuration and dimensions, and then filling the cavity with a material capable of producing a low density, microcellular foam, such as cellulose acetate dissolved in an acetone-based solvent. The mold assembly is dipped into an ice water bath to gel the material and thereafter soaked in the water bath to leach out undesired components, after which the gel is frozen, then freeze-dried wherein water and solvents sublime and the gel structure solidifies into a low-density microcellular foam, thereafter the resulting foam encapsulated target is removed from the mold cavity. The fuel-filled sphere is surrounded by foam having a thickness of about 10 to 100 .mu.m, a cell size of less than 2 .mu.m, and density of 0.065 to 0.6 .times. 10.sup.3 kg/m.sup.3. Various configured foam-encapsulated targets capable of being made by this encapsulation method are illustrated.

    Abstract translation: 泡沫包封的激光熔化靶是通过将熔融填充的填充球定位在合适的构造和尺寸的模腔内,然后用能够产生低密度微孔泡沫的材料(例如溶解在 丙酮类溶剂。 将模具组件浸入冰水浴中以凝胶化材料,然后在水浴中浸泡以浸出不需要的组分,然后将凝胶冷冻,然后冷冻干燥,其中水和溶剂升华,凝胶结构固化成 低密度微孔泡沫,然后将所得的泡沫包封的目标物从模腔中除去。 充满燃料的球体由具有约10至100μm厚度的泡沫,细胞尺寸小于2μm,密度为0.065至0.6×10 3 kg / m 3的泡沫包围。 示出了能够通过该封装方法制造的各种配置的泡沫封装的靶。

    Process for producing collagen sponges
    63.
    发明授权
    Process for producing collagen sponges 失效
    生产胶原蛋白海绵的方法

    公开(公告)号:US3665061A

    公开(公告)日:1972-05-23

    申请号:US3665061D

    申请日:1969-07-16

    Abstract: A method for producing a spongy mass of compacted collagen particles having a large surface area to volume ratio and suitable for use in filtering materials such as tobacco smoke. To form the spongy mass, finely granulated collagen particles are mixed with snow, frozen carbon dioxide or similar material, and the mixture chopped and mixed at temperatures below the freezing point to cause entwining of the distal fibers and impart binding. The mixture is then compacted and forced through a forming tube having a gradually decreasing diameter and porous walls through which the supporting snow or carbon dioxide matrix is removed. A compacted tube or rod of collagen sponge suitable for filtering cigarette or tobacco smoke merges from the forming tube and can be cut or otherwise treated as desired.

    多孔質体の製造方法およびそれを用いた多孔質体
    67.
    发明申请
    多孔質体の製造方法およびそれを用いた多孔質体 审中-公开
    用于生产由其获得的多孔物体和多孔物体的方法

    公开(公告)号:WO2006100935A1

    公开(公告)日:2006-09-28

    申请号:PCT/JP2006/304699

    申请日:2006-03-10

    Abstract:  ポアサイズの調整、特に小さなポアサイズだけでなく、大きなポアサイズの調整をも可能とする多孔質体の製造方法を提供する。ラクチドとカプロラクトンとの共重合体を含むポリマー、前記ポリマーに対して相対的に溶解度の低い溶媒、および、前記ポリマーに対して相対的に溶解度が高く且つ前記溶解度の低い溶媒と相溶性である溶媒を含む混合溶液を調製し、前記混合溶液を凍結乾燥して多孔質体を製造する際に、前記混合溶液における前記ポリマーに対して相対的に溶解度の低い溶媒の含有率を変化させ、且つ、凍結処理時に、前記混合溶液を300°C/hr以下の速度で冷却することによって、多孔質体のポアサイズを制御する。これにより、ポアサイズ30~1800μmの多孔質体が得られる。

    Abstract translation: 一种能够调节孔径的多孔物质生产方法,特别是调节不仅孔径小而孔径大的特点。 该方法包括制备包含一种或多种包含丙交酯和己内酯的共聚物的聚合物的混合溶液,其中聚合物具有相对低的溶解度的溶剂,以及其中聚合物具有相对高的溶解度并且与溶剂相容的溶剂 聚合物具有低溶解度并且冷冻干燥该混合溶液以产生多孔物体,其中在混合溶液中聚合物具有相对低的溶解度的溶剂的含量被改变,并且通过将混合物溶液冷却 300℃/小时以下的速度,从而控制多孔物体的孔径。 因此,得到孔径为30-1,800μm的多孔物体。

    CROSSLINKING PROCESS
    69.
    发明申请
    CROSSLINKING PROCESS 审中-公开
    交联过程

    公开(公告)号:WO2014108517A2

    公开(公告)日:2014-07-17

    申请号:PCT/EP2014/050419

    申请日:2014-01-10

    Applicant: NORNER IP AS

    Abstract: A process for crosslinking a poly(alkylene carbonate) (PAC) in the presence of a metal ion, said process comprising: a) adding a crosslinking agent to said poly(alkylene carbonate) and b) crosslinking the resulting product of step a); so as to form a crosslinked PAC in which the crosslinks formed involve the complexation of the metal ion to said PAC and said crosslinking agent.

    Abstract translation: 一种在金属离子存在下交联聚(碳酸亚烷基酯)(PAC)的方法,所述方法包括:a)向所述聚(碳酸亚烷基酯)中加入交联剂和b)交联 步骤a)的最终产物; 以形成交联的PAC,其中形成的交联涉及金属离子与所述PAC和所述交联剂的络合。

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