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    Method of making a cellulose acetate low density microcellular foam
    31.
    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

    IPC: C08J9/00 ,  C08J9/28 ,  B29D27/00

    CPC classification number: C08J9/28 ,  C08J9/00 ,  C08J2201/048 ,  C08J2201/054 ,  C08J2301/12 ,  Y10S376/916

    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
    32.
    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

    Applicant: Charles D. Hendricks

    Inventor： Charles D. Hendricks

    IPC: C08J9/28 ,  H05H1/22 ,  B29D27/04 ,  C01B4/00

    CPC classification number: G21B1/19 ,  C08J9/28 ,  C08J2201/048 ,  C08J2201/054 ,  C08J2301/12 ,  Y02E30/16 ,  Y10S376/916 ,  Y10T428/2991

    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
    33.
    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

    Applicant: UNITED STATES BANKNOTE CORP

    Inventor： EBERLY DAVID H JR

    IPC: A24D3/02 ,  B29C67/20 ,  C08J9/28 ,  A24C5/48 ,  B29D27/06 ,  C08H7/06

    CPC classification number: C08J9/28 ,  A24D3/0237 ,  B29C67/202 ,  C08J2201/048 ,  C08J2389/00

    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.

    Infrared-Blocking Nanocellulose Aerogel Windows
    37.
    发明申请
    Infrared-Blocking Nanocellulose Aerogel Windows 审中-公开
    红外阻挡纳米纤维素气凝胶窗

    公开(公告)号：US20160266288A1

    公开(公告)日：2016-09-15

    申请号：US15064974

    申请日：2016-03-09

    Applicant: UT-Battelle, LLC

    Inventor： Soydan Ozcan

    IPC: G02B5/20 ,  G02B1/14 ,  G02B1/04 ,  C08K3/00

    CPC classification number: G02B5/208 ,  C08J9/008 ,  C08J9/28 ,  C08J2201/048 ,  C08J2205/026 ,  C08J2301/02 ,  C08K3/014 ,  G02B1/04 ,  G02B1/14

    Abstract: An optically transparent, infrared-blocking, composite material includes a matrix of transparent, cross-linked, cellulose aerogel nanofibrils having infrared blocking ceramic nanoparticles essentially homogenously dispersed therein. The composite material is both optically transparent and infrared-blocking, and can include an adherent, transparent protective layer disposed on one or both of two opposing surfaces.

    Abstract translation: 光学透明的红外阻挡复合材料包括具有基本均匀分散在其中的具有红外阻挡陶瓷纳米颗粒的透明交联纤维素气凝胶纳米原纤维基质。 复合材料是光学透明的和红外阻挡的，并且可以包括设置在两个相对表面中的一个或两个上的粘附的透明保护层。

    Process for Preparing a Synthetic Foam Having a Controlled Particle Distribution
    38.
    发明申请
    Process for Preparing a Synthetic Foam Having a Controlled Particle Distribution 有权
    制备具有可控颗粒分布的合成泡沫的方法

    公开(公告)号：US20140243427A1

    公开(公告)日：2014-08-28

    申请号：US14348604

    申请日：2012-10-01

    Applicant: Polyganics B.V.

    Inventor： Bhushan Chandrashekhar-Bhat ,  Martin Franke Tooren ,  Robbert Arnold de Graaf ,  Romke Stephan Rudolf Ribbels

    IPC: C08G18/08 ,  A61K9/12 ,  A61K47/34

    CPC classification number: C08G18/14 ,  A61K9/122 ,  A61K47/34 ,  A61L24/0036 ,  A61L27/56 ,  A61L2400/08 ,  B29C67/202 ,  C08J9/0066 ,  C08J9/0095 ,  C08J9/28 ,  C08J2201/048

    Abstract: The invention relates to processes for preparing a synthetic foam having present therein particles with a controlled particle distribution and the use of said foam, as well as to foams as such. Accordingly the invention is directed to a process for preparing a synthetic foam having present therein particles, wherein the distribution of said particles is controlled by the following steps of dissolving at least one synthetic polymer in one or more solvents to form a solution; contacting particles with said solution to form a polymer/particles mixture; and freeze-drying the polymer/particles mixture by: freezing the polymer/particles mixture; and subsequently subliming the one or more solvents to form a synthetic foam comprising said particles.

    Abstract translation: 本发明涉及制备合成泡沫的方法，其中存在具有可控颗粒分布的颗粒和所述泡沫的用途以及泡沫。 因此，本发明涉及一种制备其中存在颗粒的合成泡沫体的方法，其中通过以下步骤控制所述颗粒的分布，所述步骤将至少一种合成聚合物溶解在一种或多种溶剂中以形成溶液; 使颗粒与所述溶液接触以形成聚合物/颗粒混合物; 并通过以下方法冷冻干燥聚合物/颗粒混合物：冷冻聚合物/颗粒混合物; 然后升华所述一种或多种溶剂以形成包含所述颗粒的合成泡沫。

    porous bioabsorbable material and method of producing the same
    40.
    发明申请
    porous bioabsorbable material and method of producing the same 审中-公开
    多孔生物可吸收材料及其制造方法

    公开(公告)号：US20090208586A1

    公开(公告)日：2009-08-20

    申请号：US12293153

    申请日：2007-03-20

    Applicant: Toshinobu Sajiki ,  Naoyuki Hanaki ,  Junichi Ide ,  Fumiko Hirayama

    Inventor： Toshinobu Sajiki ,  Naoyuki Hanaki ,  Junichi Ide ,  Fumiko Hirayama

    IPC: A61K9/16 ,  B29C67/20

    CPC classification number: A61L31/148 ,  A61L31/146 ,  C08J5/18 ,  C08J9/28 ,  C08J2201/048 ,  C08J2207/10 ,  C08J2300/14 ,  C08J2367/04

    Abstract: [Problems] To provide a thin film-shaped porous bioabsorbable material that is a dense structure in which the pore size average is small and the pore size is uniform and which further has a large maximum stress, in particular, a porous bioabsorbable material extremely useful as an adhesion preventing material.[Means for Solving Problems] A porous bioabsorbable material characterized by being formed of a porosified bioabsorbable polymer which is obtained in a manner that a bioabsorbable polymer is gelled with a good solvent and a poor solvent, compatible with each other, for the bioabsorbable polymer and the gelled bioabsorbable polymer is subjected to freeze-drying to be porosified; and a method of producing the porous bioabsorbable material, the method being characterized in that a bioabsorbable polymer is gelled with a mixed solvent composed of a good solvent and a poor solvent, compatible with each other, for the bioabsorbable polymer and the gelled bioabsorbable polymer is subjected to freeze-drying to be porosified.

    Abstract translation: [问题]提供一种致密结构的薄膜状多孔生物可吸收材料，其特征在于孔尺寸平均小，孔径均匀且进一步具有大的最大应力，特别是多孔生物可吸收材料非常有用 作为防粘连材料。 用于解决问题的方法一种多孔生物可吸收材料，其特征在于由可生物吸收性聚合物以可生物吸收性聚合物凝胶化的生物可吸收性聚合物形成的多孔生物可吸收性聚合物，该生物可吸收性聚合物与生物可吸收聚合物相互相容的良溶剂和不良溶剂凝胶化， 将凝胶状生物体吸收性聚合物进行冷冻干燥以进行孔化; 以及生产该多孔生物可吸收材料的方法，其特征在于，生物可吸收性聚合物由生物可吸收性聚合物相互相容的由良溶剂和不良溶剂组成的混合溶剂凝胶化，凝胶化生物可吸收聚合物为 进行冷冻干燥以进行孔化。

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