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    FUNCTIONALIZED CELLULOSE NANOCRYSTAL MATERIALS AND METHODS OF PREPARATION
    1.
    发明申请
    FUNCTIONALIZED CELLULOSE NANOCRYSTAL MATERIALS AND METHODS OF PREPARATION 审中-公开

    公开(公告)号：US20190092926A1

    公开(公告)日：2019-03-28

    申请号：US16081446

    申请日：2017-02-27

    Applicant: Purdue Research Foundation

    Inventor： Jeffrey Paul Youngblood ,  Youngman Yoo

    IPC: C08L1/10 ,  C08B1/02 ,  C08B3/02

    CPC classification number: C08L1/10 ,  C08B1/02 ,  C08B3/00 ,  C08B3/02 ,  C08L2205/16 ,  Y02P20/582

    Abstract: The surface hydrophobization of cellulose nanocrystals (CNCs) by carboxylic acids, biodiesel, or plant oils was conducted via there herein disclosed green process using an one-pot synthetic method. In the process, an aqueous lactic acid syrup served as a solvent to provide a stable and well-dispersed water suspension of CNCs and participated in esterification reactions to produce an intermediate product of polylactic acid (PLA) oligomer grafted CNCs (CNC-g-PLA). This solvent and intermediate product system allows for an in situ solvent exchange from water to lactic acid without prior drying of the CNCs and a subsequent efficient esterification reaction of CNCs with carboxylic acids or esters having a long hydrocarbon chain (FAs). Another advantage of the disclosed process is the ability to reuse the reagents in the subsequent reaction in order to reduce the production cost. Grafting of renewable materials on the surface of CNCs was developed by polyesterification that is capable of being environmentally friendly and mass-produced without any organic solvents or toxic reagents.

    Preparation of wood pulps with caustic pretreatment for use in the manufacture of cellulose acetates and other organic esters
    3.
    发明申请
    Preparation of wood pulps with caustic pretreatment for use in the manufacture of cellulose acetates and other organic esters 审中-公开
    用于制造乙酸纤维素和其他有机酯的苛性预处理木浆的制备

    公开(公告)号：US20060287517A1

    公开(公告)日：2006-12-21

    申请号：US11155133

    申请日：2005-06-16

    Applicant: Linfu Wang ,  Henry Stogner ,  Charles Toney ,  Chuck Kizer ,  Bill Batson

    Inventor： Linfu Wang ,  Henry Stogner ,  Charles Toney ,  Chuck Kizer ,  Bill Batson

    IPC: C08B1/02

    CPC classification number: C08B1/02 ,  C08B3/04 ,  C08B3/06 ,  C08B3/08 ,  C08B3/10

    Abstract: A process for making cellulose acetate or cellulose esters which pretreats a wood pulp prior to acetylation or esterification is disclosed. The pretreatment of the wood pulp includes the mixture of wood pulp into a caustic solution to form a suspension of wood pulp. The suspension of wood pulp is separated from the caustic solution to form a cake. The cake is washed with an acid to obtain an acid and cellulose cake having a low water content. The acid and cellulose cake is then acetylated or esterifed to form cellulose acetate or other cellulose esters.

    Abstract translation: 公开了一种在乙酰化或酯化之前预处理木浆的醋酸纤维素或纤维素酯的制备方法。 木浆的预处理包括将木浆混合成苛性碱溶液以形成木浆的悬浮液。 将木浆的悬浮液与苛性碱溶液分离形成蛋糕。 用酸洗涤滤饼，得到含水量低的酸和纤维素饼。 然后将酸和纤维素饼乙酰化或酯化以形成乙酸纤维素或其它纤维素酯。

    Treatment method for wooden material
    4.
    发明申请
    Treatment method for wooden material 审中-公开
    木材处理方法

    公开(公告)号：US20050020829A1

    公开(公告)日：2005-01-27

    申请号：US10922932

    申请日：2004-08-23

    Applicant: Shigetaka Yamamoto ,  Yoshihisa Maruyama

    Inventor： Shigetaka Yamamoto ,  Yoshihisa Maruyama

    IPC: B27K5/00 ,  B27K5/04 ,  C08B1/02

    CPC classification number: C08H8/00

    Abstract: A treatment method for a wooden material can significantly suppress changes in color of the wooden material caused by exposure to light or heat. The treatment method includes steps of subjecting a wooden material to a bleaching treatment, which provides 70 or more of L* to the material after the bleaching treatment, and subjecting the wooden material after the bleaching treatment to an acetylating treatment, which provides 70 or more of L* after the acetylating treatment to the material after the acetylating treatment.

    Abstract translation: 用于木材的处理方法可以显着地抑制由于暴露于光或热而引起的木质材料的颜色变化。 处理方法包括以下步骤：对木材进行漂白处理，其在漂白处理后向材料提供70或更多的L *，并且在漂白处理后对木材进行乙酰化处理，其提供70或更多 的乙酰化处理后的L *。

    Method for preparing a cellulose formate solution by impregnating and kneading cellulose slabs
    5.
    发明授权
    Method for preparing a cellulose formate solution by impregnating and kneading cellulose slabs 失效
    通过浸渍和捏合纤维素板制备甲酸纤维素溶液的方法

    公开(公告)号：US6022614A

    公开(公告)日：2000-02-08

    申请号：US981594

    申请日：1998-03-17

    Applicant: Jean-Claude Aubry ,  Bernardus Maria Koenders ,  James Cartwright Williams

    Inventor： Jean-Claude Aubry ,  Bernardus Maria Koenders ,  James Cartwright Williams

    IPC: B60C9/00 ,  C08B1/02 ,  C08B3/04 ,  C08J5/18 ,  C08L1/10 ,  D01F2/28 ,  D04H1/04

    CPC classification number: C08J5/18 ,  B60C9/0042 ,  C08B1/02 ,  C08B3/04 ,  C08L1/10 ,  D01F2/28 ,  C08J2301/10 ,  Y10T428/249925 ,  Y10T428/249933 ,  Y10T428/24994 ,  Y10T428/31971

    Abstract: Process for preparing a solution of cellulose formate from cellulose plates, in particular high-density plates, without prior mechanical destruction of these plates. The plates are dissolved directly, by means of an impregnating step of the whole plates in a base liquid of formic acid, followed by an operation of kneading of the plates thus impregnated in contact with both formic acid and phosphoric acid. The process is preferably carried out in order to prepare ready-for-spinning solutions with, in particular, if necessary, an intermediate operation of adjustment of the final composition. Solutions prepared using such a process. Preparation of objects made of cellulose, starting with these solutions, in particular fibers or films. Assemblies of such fibers or films. Articles reinforced with such fibers or films or assemblies, these reinforced articles being especially tires.

    Abstract translation: PCT No.PCT / EP96 / 02827 Sec。 371日期：1998年3月17日 102（e）1998年3月17日PCT PCT 1996年6月28日PCT公布。 第WO97 / 02292号公报 日期1997年1月23日从纤维素板，特别是高密度板制备纤维素甲酸酯的方法，没有这些板的预先机械破坏。 通过将整个板的浸渍步骤直接溶解在甲酸的基础液中，然后对由此浸渍的与二甲酸和磷酸接触的板进行捏合操作。 该方法优选进行以便制备即将纺丝的溶液，特别是如果必要的话，调整最终组合物的中间操作。 使用这种过程准备的解决方案。 由这些溶液，特别是纤维或薄膜开始制备由纤维素制成的物体。 这种纤维或薄膜的组件。 用这种纤维或膜或组件增强的制品，这些增强制品特别是轮胎。

    Method for continuous saccharification of cellulose of plant raw material
    6.
    发明授权
    Method for continuous saccharification of cellulose of plant raw material 失效
    植物原料纤维素连续糖化的方法

    公开(公告)号：US4432805A

    公开(公告)日：1984-02-21

    申请号：US391442

    申请日：1982-06-23

    Applicant: Antti I. Nuuttila ,  Veikko J. Pohjola

    Inventor： Antti I. Nuuttila ,  Veikko J. Pohjola

    IPC: C08B37/00 ,  C08B1/02 ,  C13K1/02

    CPC classification number: C13K1/02

    Abstract: A method for continuous saccharification of plant raw material by feeding the raw material as such or prehydrolyzed and a dilute sulphuric acid solution into a flow reactor in order to hydrolyze the raw material under pressure and at a high temperature, discharging dry solids and liquid from the reactor by expansion and separating liquid and solids, wherein the raw material and sulfuric acid solution are led through the reactor at equal rate, which is the same as required by the more easily hydrolyzable particles of the raw material, the solids and liquid together are discharged into the same blow tank and at least part of the separated coarse solid is returned into the reactor.

    Abstract translation: 通过将原料原样或预水解并将稀硫酸溶液进料到流动反应器中以在压力和高温下水解原料的方法来连续糖化植物原料，从干燥固体和液体中排出干燥固体和液体 反应器通过膨胀和分离液体和固体，其中原料和硫酸溶液以相同的速率引导通过反应器，其与原料的更容易水解的颗粒所要求的相同，固体和液体一起排出 进入相同的吹瓶中，至少部分分离的粗固体返回到反应器中。

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