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    Sulfite-based processes for producing nanocellulose, and compositions and products produced therefrom
    3.
    发明授权
    Sulfite-based processes for producing nanocellulose, and compositions and products produced therefrom 有权
    用于生产纳米纤维的基于亚硫酸盐的方法，以及由其制备的组合物和产品

    公开(公告)号：US09399840B2

    公开(公告)日：2016-07-26

    申请号：US14584593

    申请日：2014-12-29

    申请人： API Intellectual Property Holdings, LLC

    发明人： Kimberly Nelson ,  Theodora Retsina ,  Vesa Pylkkanen ,  Ryan O'Connor

    IPC分类号： D21H11/18 ,  D21H21/32 ,  C13K1/02 ,  D21H17/66 ,  D21H11/06 ,  D21C3/04 ,  D21C3/06 ,  D21C9/00 ,  D21C9/10

    CPC分类号： D21H11/18 ,  C13K1/02 ,  D21C3/04 ,  D21C3/06 ,  D21C9/007 ,  D21C9/10 ,  D21H11/06 ,  D21H17/66 ,  D21H21/32

    摘要： Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with low mechanical energy input. In some variations, the process includes fractionating biomass with sulfur dioxide or a sulfite compound and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and/or nanocrystals. The total mechanical energy may be less than 500 kilowatt-hours per ton. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface. Optionally, sugars derived from amorphous cellulose and hemicellulose may be separately fermented, such as to monomers for various polymers. These polymers may be combined with the nanocellulose to form completely renewable composites.

    摘要翻译： 所公开的方法能够以低机械能输入将生物质转化为高结晶度纳米纤维素。 在一些变型中，该方法包括用二氧化硫或亚硫酸盐化合物和水分解生物质，以产生富含纤维素的固体和含有半纤维素和木质素的液体; 并机械处理富含纤维素的固体以形成纳米原纤维和/或纳米晶体。 总机械能可能小于500千瓦时/吨。 纳米纤维素材料的结晶度可以为80％以上，转化为复合材料的良好的增强性能。 纳米纤维素材料可以包括纳米纤维化纤维素，纳米晶纤维素或两者。 在一些实施方案中，通过将一些木质素沉积到纤维素表面上，纳米纤维素材料是疏水的。 任选地，衍生自无定形纤维素和半纤维素的糖可以单独发酵，例如用于各种聚合物的单体。 这些聚合物可与纳米纤维素结合形成完全可再生的复合材料。

    Coated sheet material
    9.
    发明授权
    Coated sheet material 失效

    公开(公告)号：US2054113A

    公开(公告)日：1936-09-15

    申请号：US69374133

    申请日：1933-10-16

    申请人： MARATHON PAPER MILLS CO

    发明人： ALLEN ABRAMS ,  WAGNER CHARLEY L

    IPC分类号： D21H11/06 ,  D21H19/14 ,  D21H23/36 ,  D21H23/40

    CPC分类号： D21H19/14 ,  D21H11/06 ,  D21H19/18 ,  D21H19/36 ,  D21H23/36 ,  D21H23/40 ,  D21H27/34 ,  Y10S215/04 ,  Y10S524/925 ,  Y10T428/31714 ,  Y10T428/31808 ,  Y10T428/31841

    摘要： 481,427. Coated fabrics; coating webs. BURGESS, A. F. (Marathon Paper Mills Co.) June 6, 1936, No. 15908. Addition to 481,426. [Class 140] [Also in Group XXII] Sheet material such as paper, fabric, fibreboard, metal foil, wood veneer, and regenerated cellulose is provided with a superficially adhering, thin, elastic, flexible, non-tacky, moisture-, water-, and gas-proof layer by applying the rubber-wax composition described in the parent Specification. The web 3 to be coated passes over a steam-heated roll 5, preferably non-rotating. Coating-material 8 is applied in front of a doctor bar 7 which may be heated by electrical elements 11. The coated web then passes over water-cooled rolls 15, 16. The temperature of the roll 5 and doctor 7 is between 180 and 230‹ F. The product is capable of being heat-sealed and may be used in making boxes or containers for food.