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    TUNABLE AND RESPONSIVE PHOTONIC HYDROGELS COMPRISING NANOCRYSTALLINE CELLULOSE
    44.
    发明申请
    TUNABLE AND RESPONSIVE PHOTONIC HYDROGELS COMPRISING NANOCRYSTALLINE CELLULOSE 审中-公开
    包含纳米晶体纤维素的可调节和反应性光子晶体

    公开(公告)号：US20160002457A1

    公开(公告)日：2016-01-07

    申请号：US14768974

    申请日：2014-02-12

    Applicant: CELLUFORCE INC. ,  UNIVERSITY OF BRITISH COLUMBIA

    Inventor： Wadood Yasser HAMAD ,  Mark John MACLACHLAN ,  Joel Alexander KELLY ,  Kevin Eric SHOPSOWITZ

    IPC: C08L33/26 ,  C08L33/02 ,  C08L33/14

    CPC classification number: C08L33/26 ,  C08F2/44 ,  C08F220/20 ,  C08F220/28 ,  C08F220/56 ,  C08L1/02 ,  C08L33/02 ,  C08L33/14 ,  C08F220/54 ,  C08F222/385 ,  C08F2220/286 ,  C08F2222/1013 ,  C08F220/06

    Abstract: Composite hydrogels with a chiral organization with tunable responsive photonic properties are conceived. A polymerizable hydrophilic monomer such as acrylamide is reacted in the presence of nanocrystalline cellulose (NCC) to give a composite hydrogel with cellulose nanocrystals embedded in a chiral nematic organization. Through control of the reaction conditions, the hydrogel can exhibit photonic colour that can be varied throughout the visible and near-infrared regions. The colour shifts substantially and reversibly upon swelling and shrinking of the hydrogel through solvation in aqueous and nonaqueous media. The responsive properties can be tailored both through choice of monomer and/or through chemical modification of the NCC surface. Examples of possible applications of the materials are: tunable reflective filters, chemical sensors, stationary phases for electrophoresis of chiral or achiral substances, and as a template to generate new materials with chiral nematic structures.

    Abstract translation: 构想具有可调谐响应光子性质的手性组合的复合水凝胶。 可聚合的亲水单体如丙烯酰胺在纳米晶体纤维素（NCC）的存在下反应，得到嵌入手性向列组织中的纤维素纳米晶体的复合水凝胶。 通过控制反应条件，水凝胶可以表现出可在整个可见光和近红外区域变化的光子颜色。 在水性和非水性介质中通过溶剂化使水凝胶膨胀和收缩时，颜色基本上可逆地移动。 响应特性可以通过选择单体和/或通过NCC表面的化学修饰进行调整。 这些材料可能应用的例子有：可调谐反射滤光片，化学传感器，手性或非手性物质电泳的固定相，以及用手性向列结构生成新材料的模板。

    FLEXIBLE NANOCRYSTALLINE CELLULOSE (NCC) FILMS WITH TUNABLE OPTICAL AND MECHANICAL PROPERTIES
    47.
    发明申请
    FLEXIBLE NANOCRYSTALLINE CELLULOSE (NCC) FILMS WITH TUNABLE OPTICAL AND MECHANICAL PROPERTIES 审中-公开
    具有柔性光学和机械性能的柔性纳米晶体纤维（NCC）膜

    公开(公告)号：WO2014138976A1

    公开(公告)日：2014-09-18

    申请号：PCT/CA2014/050219

    申请日：2014-03-12

    Applicant: CELLUFORCE INC.

    Inventor： HAMAD, Wadood Yasser ,  ATIFI, Siham ,  BERRY, Richard Michael

    IPC: C08L1/02 ,  C08J3/20 ,  C08J5/18 ,  C08K5/42

    CPC classification number: C08J5/18 ,  B29C39/14 ,  B29L2007/008 ,  C08B15/02 ,  C08J2301/02 ,  C08J2301/04 ,  C08K5/42 ,  C08K2201/008 ,  C08L1/04

    Abstract: This invention describes development of a novel flexible film comprising nanocrystalline cellulose (NCC), or cellulose nanocrystals (CNC), and a controlled amount of a suitable zwitterionic (amphoteric) surfactant. The films are iridescent and have a high level of structural integrity, where mechanical properties can be engineered to suit the end applications. Flexible NCC films can be used in a multitude of applications, for instance, electrostatic shielding, gas barrier, hard coatings, printing.

    Abstract translation: 本发明描述了包含纳米晶体纤维素（NCC）或纤维素纳米晶体（CNC）和受控量的合适的两性离子（两性）表面活性剂的新型柔性膜的开发。 这些薄膜是彩虹色的，并且具有高水平的结构完整性，其中可以设计机械性能以适应最终应用。 柔性NCC薄膜可用于多种应用，例如静电屏蔽，气体屏障，硬涂层，印刷。

    NCC-BASED SUPRAMOLECULAR MATERIALS FOR THERMOPLASTIC AND THERMOSET POLYMER COMPOSITES
    48.
    发明申请
    NCC-BASED SUPRAMOLECULAR MATERIALS FOR THERMOPLASTIC AND THERMOSET POLYMER COMPOSITES 审中-公开
    用于热塑性和热固性聚合物复合材料的基于NCC的SUPRAM分子材料

    公开(公告)号：WO2013037041A1

    公开(公告)日：2013-03-21

    申请号：PCT/CA2012/000824

    申请日：2012-09-12

    Applicant: CELLUFORCE INC. ,  HAMAD, Wadood Y. ,  SU, Shunxing

    Inventor： HAMAD, Wadood Y. ,  SU, Shunxing

    IPC: C08F251/02 ,  C08L51/02

    CPC classification number: C08F251/02 ,  C08L1/02 ,  C08L23/06 ,  C08L51/02 ,  C08L2207/04 ,  C08L2207/062 ,  C08F220/10

    Abstract: Nanocrystalline cellulose (NCC)-based supramolecular materials, a method for their preparation and their use in thermoplastic and thermoset polymer composites are disclosed. Supramolecular materials of NCC and one or two polymers are synthesized by in situ surface graft copohmerization in a multitude of solvent systems, including water. The nano-scale size supramolecular materials are engineered to have a unique combination of lowr polarity and high hydrophobicity and function as copohmers for demanding pohmeric systems such as, but not limited to, polyolefins and polyesters. Nanocomposite materials of enhanced functionality and mechanical properties are produced by compounding the NCC-based supramolecular materials with polymer matrices. The supramolecular materials are used in composite development for packaging materials, structural composites for automotive and construction, as sandwiched foam composites or, combined with biocompatible polymers, in medical applications.

    Abstract translation: 公开了基于纳米晶体纤维素（NCC）的超分子材料，其制备方法及其在热塑性和热固性聚合物复合材料中的应用。 NCC和一种或两种聚合物的超分子材料通过原位表面接枝共聚合在多种溶剂体系（包括水）中合成。 纳米尺寸超分子材料被设计成具有低极性和高疏水性的独特组合，并且作为用于苛刻的生物系统（例如但不限于聚烯烃和聚酯）的共聚物。 通过将基于NCC的超分子材料与聚合物基质混合来制备增强的功能和机械性能的纳米复合材料。 超分子材料用于包装材料，汽车和建筑结构复合材料的复合开发，作为夹层泡沫复合材料，或与生物相容聚合物结合在医疗应用中。

    Preparation of solvent and polymer redispersible formulations of dried cellulose nanocrystals (cnc)
    49.
    发明专利
    Preparation of solvent and polymer redispersible formulations of dried cellulose nanocrystals (cnc) 未知

    公开(公告)号：IL270599B2

    公开(公告)日：2023-12-01

    申请号：IL27059919

    申请日：2019-11-12

    Applicant: CELLUFORCE INC

    IPC: C08B15/00 ,  C30B29/54 ,  C30B29/58

    Abstract: The disclosure provides redispersible CNC. The CNC disclosed herein is redispersible in non-polar and polar organic solvents as well as polar and non-polar polymers such as polyethylene or polypropylene. The disclosure surprisingly also provides redispersible CNC bearing improved redispersion in aqueous systems and most particularly in high ionic strength aqueous systems which usually require significant mixing energy to achieve dispersion.

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