FORMING POROUS SCAFFOLD FROM CELLULOSE DERIVATIVES
    14.
    发明申请
    FORMING POROUS SCAFFOLD FROM CELLULOSE DERIVATIVES 有权
    从纤维素衍生物形成多孔的SCAFF

    公开(公告)号:US20110159272A1

    公开(公告)日:2011-06-30

    申请号:US12824105

    申请日:2010-06-25

    Abstract: Scaffold comprises a polymer defining macropores and comprising hydroxypropylcellulose partially substituted by a substituent comprising a self-crosslinkable group, which is crosslinked through the self-crosslinkable group. The macropores have an average pore size larger than 50 microns and are at least partially interconnected. In one method, bicontinuous emulsion comprising a continuous aqueous phase and a continuous polymer phase is formed. The polymer phase comprises hydroxypropylcellulose partially substituted by a substituent comprising a self-crosslinkable group, and is crosslinked through the self-crosslinkable group to form a polymer defining at least partially interconnected pores. In another method, phase separation is induced in a solution comprising a polymer precursor and water to form a bicontinuous emulsion comprising a continuous polymer phase and a continuous aqueous phase. The polymer precursor comprises a self-crosslinkable group and is crosslinked through the self-crosslinkable group in the emulsion to form a polymer defining at least partially interconnected macropores.

    Abstract translation: 脚手架包含限定大孔的聚合物,并且包含部分由包含自交联基团的取代基取代的羟丙基纤维素,所述取代基通过自交联基团交联。 大孔具有大于50微米的平均孔径并且至少部分互连。 在一种方法中,形成包含连续水相和连续聚合物相的双连续乳液。 聚合物相包含部分由包含自交联基团的取代基取代的羟丙基纤维素,并且通过自交联基团交联以形成限定至少部分互连的孔的聚合物。 在另一种方法中,在包含聚合物前体和水的溶液中诱导相分离以形成包含连续聚合物相和连续水相的双连续乳液。 聚合物前体包含自交联基团,并且通过乳液中的自交联基团交联以形成限定至少部分互连的大孔的聚合物。

    FORMING POROUS SCAFFOLD FROM CELLULOSE DERIVATIVES
    16.
    发明申请
    FORMING POROUS SCAFFOLD FROM CELLULOSE DERIVATIVES 审中-公开
    从纤维素衍生物形成多孔的SCAFF

    公开(公告)号:US20130005945A1

    公开(公告)日:2013-01-03

    申请号:US13611339

    申请日:2012-09-12

    Abstract: Scaffold comprises a polymer defining macropores and comprising hydroxypropylcellulose partially substituted by a substituent comprising a self-crosslinkable group, which is crosslinked through the self-crosslinkable group. The macropores have an average pore size larger than 50 microns and are at least partially interconnected. In one method, bicontinuous emulsion comprising a continuous aqueous phase and a continuous polymer phase is formed. The polymer phase comprises hydroxypropylcellulose partially substituted by a substituent comprising a self-crosslinkable group, and is crosslinked through the self-crosslinkable group to form a polymer defining at least partially interconnected pores. In another method, phase separation is induced in a solution comprising a polymer precursor and water to form a bicontinuous emulsion comprising a continuous polymer phase and a continuous aqueous phase. The polymer precursor comprises a self-crosslinkable group and is crosslinked through the self-crosslinkable group in the emulsion to form a polymer defining at least partially interconnected macropores.

    Abstract translation: 脚手架包含限定大孔的聚合物,并且包含部分由包含自交联基团的取代基取代的羟丙基纤维素,所述取代基通过自交联基团交联。 大孔具有大于50微米的平均孔径并且至少部分互连。 在一种方法中,形成包含连续水相和连续聚合物相的双连续乳液。 聚合物相包含部分由包含自交联基团的取代基取代的羟丙基纤维素,并且通过自交联基团交联以形成限定至少部分互连的孔的聚合物。 在另一种方法中,在包含聚合物前体和水的溶液中诱导相分离以形成包含连续聚合物相和连续水相的双连续乳液。 聚合物前体包含自交联基团,并且通过乳液中的自交联基团交联以形成限定至少部分互连的大孔的聚合物。

    Forming porous scaffold from cellulose derivatives
    17.
    发明授权
    Forming porous scaffold from cellulose derivatives 有权
    从纤维素衍生物形成多孔支架

    公开(公告)号:US08283028B2

    公开(公告)日:2012-10-09

    申请号:US12824105

    申请日:2010-06-25

    Abstract: Scaffold comprises a polymer defining macropores and comprising hydroxypropylcellulose partially substituted by a substituent comprising a self-crosslinkable group, which is crosslinked through the self-crosslinkable group. The macropores have an average pore size larger than 50 microns and are at least partially interconnected. In one method, bicontinuous emulsion comprising a continuous aqueous phase and a continuous polymer phase is formed. The polymer phase comprises hydroxypropylcellulose partially substituted by a substituent comprising a self-crosslinkable group, and is crosslinked through the self-crosslinkable group to form a polymer defining at least partially interconnected pores. In another method, phase separation is induced in a solution comprising a polymer precursor and water to form a bicontinuous emulsion comprising a continuous polymer phase and a continuous aqueous phase. The polymer precursor comprises a self-crosslinkable group and is crosslinked through the self-crosslinkable group in the emulsion to form a polymer defining at least partially interconnected macropores.

    Abstract translation: 脚手架包含限定大孔的聚合物,并且包含部分由包含自交联基团的取代基取代的羟丙基纤维素,所述取代基通过自交联基团交联。 大孔具有大于50微米的平均孔径并且至少部分互连。 在一种方法中,形成包含连续水相和连续聚合物相的双连续乳液。 聚合物相包含部分由包含自交联基团的取代基取代的羟丙基纤维素,并且通过自交联基团交联以形成限定至少部分互连的孔的聚合物。 在另一种方法中,在包含聚合物前体和水的溶液中诱导相分离以形成包含连续聚合物相和连续水相的双连续乳液。 聚合物前体包含自交联基团,并且通过乳液中的自交联基团交联以形成限定至少部分互连的大孔的聚合物。

    METHOD FOR ONE-STEP SYNTHESIS, CROSS-LINKING AND DRYING OF AEROGELS
    18.
    发明申请
    METHOD FOR ONE-STEP SYNTHESIS, CROSS-LINKING AND DRYING OF AEROGELS 审中-公开
    一步合成,交联和干燥方法

    公开(公告)号:WO2016019308A1

    公开(公告)日:2016-02-04

    申请号:PCT/US2015/043234

    申请日:2015-07-31

    Inventor: BERTINO, Massimo

    Abstract: A method of synthesizing aerogels and cross-linked aerogels in a single step and in a single pot without requiring any solvent exchange is described. Porous matrices are synthesized through a modification of hydrolysis condensation of alkoxides in which addition of water is minimized. The reaction occurs in an ethanol-water azeotrope mixture; the water in the azeotrope slowly hydrolyzes the alkoxide. Additionally, after gelation, the porous matrix is dried in supercritical ethanol rather than liquid CO 2 , which allows for elimination of solvent exchange steps. These modifications allow for the preparation of aerogel monoliths in any size in one step and in one pot and much faster than conventional procedures. In addition, the method provides for custom aerogel parts with large dimensions, as well as high volume fabrication of aerogels. The custom aerogel parts may be used in a variety of thermal insulation applications.

    Abstract translation: 描述了在单个步骤和单个锅中合成气凝胶和交联的气凝胶而不需要任何溶剂交换的方法。 多孔基质是通过改性水解缩合的醇盐来合成的,其中添加的水被最小化。 反应发生在乙醇 - 水共沸混合物中; 共沸物中的水缓慢水解醇盐。 此外,在凝胶化后,多孔基质在超临界乙醇中而不是液体CO 2干燥,这允许消除溶剂交换步骤。 这些修改允许在一个步骤中并且在一个锅中制备任何尺寸的气凝胶整料,并且比常规方法快得多。 此外,该方法提供了具有大尺寸的定制气凝胶部件以及大量制造气凝胶。 定制的气凝胶部件可用于各种绝热应用。

    GLUCOMANNAN SPONGEOUS MATRICES
    20.
    发明公开

    公开(公告)号:EP0650348A1

    公开(公告)日:1995-05-03

    申请号:EP93917085.0

    申请日:1993-07-09

    Abstract: The invention relates to articles of manufacture comprising spongeous matrices which may have a controlled pore size and/or distribution, formed of: Component (a) glucomannan; and Component (b) at least one other aqueous gel-forming polysaccharide; and optionally Component (c) at least one water soluble hydrocolloid other than the foregoing. The invention also relates to processes for fabricating the spongeous matrices and their use as plant culture media, as surgical sponges, and as packaging material.

    Abstract translation: 本发明涉及包含海绵基质的制品,所述海绵基质可具有可控的孔径和/或分布,由以下物质形成:组分(a)葡甘露聚糖; 和组分(b)至少一种其它含水凝胶形成多糖; 和任选的组分(c)至少一种不同于前述的水溶性水解胶体。 本发明还涉及制造海绵基质的方法及其作为植物培养基,作为手术海绵以及作为包装材料的用途。

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