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    Substituted Cellulose Ester Adhesives and Methods and Articles Relating Thereto
    81.
    发明申请
    Substituted Cellulose Ester Adhesives and Methods and Articles Relating Thereto 审中-公开
    取代纤维素酯胶粘剂及其相关方法与文章

    公开(公告)号：US20150203723A1

    公开(公告)日：2015-07-23

    申请号：US13985318

    申请日：2012-09-24

    申请人： Celanese Acetate LLC

    发明人： Michael Combs ,  Thomas Garrett ,  Chad Prunesti ,  Martin Jakob ,  Yi (Julie) Li ,  Xiaoyan Tu

    IPC分类号： C09J101/12 ,  C08L1/12

    CPC分类号： C09J101/12 ,  C08B3/24 ,  C08B5/04 ,  C08B7/00 ,  C08L1/12 ,  C08L1/20 ,  C09J101/20 ,  Y10T428/2865

    摘要： A substituted cellulose ester having a cellulose backbone with an organic ester substituent and an inorganic ester substituent derived from the inorganic ester oxoacid catalyst may be utilized in adhesive compositions and articles produced therewith. Producing a substituted cellulose ester may, in some embodiments, involve providing a cellulose ester mixture that comprises a cellulose ester and a solvent; and hydrolyzing a mixture that comprises the cellulose ester mixture, water, and an inorganic ester oxoacid catalyst so as to yield a substituted cellulose ester having a cellulose backbone with an organic ester substituent and an inorganic ester substituent derived from the inorganic ester oxoacid catalyst.

    摘要翻译： 具有有机酯取代基的纤维素骨架的取代纤维素酯和衍生自无机酯含氧酸催化剂的无机酯取代基可用于粘合剂组合物和由其制备的制品。 在一些实施方案中，生产取代的纤维素酯可以涉及提供包含纤维素酯和溶剂的纤维素酯混合物; 并水解包含纤维素酯混合物，水和无机酯含氧酸催化剂的混合物，以产生具有有机酯取代基的纤维素骨架的取代纤维素酯和由无机酯含氧酸催化剂衍生的无机酯取代基。

    High productivity spheroid nitrocellulose
    83.
    发明授权
    High productivity spheroid nitrocellulose 失效
    高生产率的球状硝化纤维素

    公开(公告)号：US5144020A

    公开(公告)日：1992-09-01

    申请号：US701755

    申请日：1991-05-17

    申请人： Kwan F. Fung

    发明人： Kwan F. Fung

    IPC分类号： B01J2/10 ,  B29B13/06 ,  B29K1/00 ,  C08B5/04 ,  C08J3/12

    CPC分类号： C08B5/04

    摘要： Fibrous water-wet nitrocellulose containing 4.5 to 5.5% moisture sprayed with a solvent/cosolvent mixture converts to spheroid, densified nitrocellulose via bilateral agitation. A free-flowing dust-free product having a lower burn rate is produced which dissolves more rapidly for lacquer production. A preferred apparatus is an orbital shaker and a preferred solvent/cosolvent is isopropyl acetate/isopropyl alcohol.

    Process for purification of nitrocellulose
    84.
    发明授权
    Process for purification of nitrocellulose 失效
    硝基纤维素的净化方法

    公开(公告)号：US4323669A

    公开(公告)日：1982-04-06

    申请号：US171623

    申请日：1980-07-23

    申请人： William T. Bolleter ,  Carl D. Chandler, Jr.

    发明人： William T. Bolleter ,  Carl D. Chandler, Jr.

    IPC分类号： C08B5/02 ,  C08B5/04 ,  C08B5/10

    CPC分类号： C08B5/10 ,  C08B5/04

    摘要： A process for purification of nitrocellulose containing residual acid from nitration is provided. In this process the nitrocellulose is cut in the presence of water to form an aqueous slurry of cut nitrocellulose fibers. The pH of the slurry is adjusted to a value of at least about 8 and the slurry is heated under pressure. The pH of the slurry is maintained above 8 during heating by addition of basic solution to the slurry. When the residual acid in the slurry is substantially completely neutralized, the fibers are separated from the slurry. The purified nitrocellulose is of reduced viscosity and satisfactory stability.

    摘要翻译： 提供了一种从硝化中纯化含有残留酸的硝酸纤维素的方法。 在该方法中，硝酸纤维素在水的存在下被切割，以形成切割的硝化纤维素纤维的含水浆液。 将浆料的pH调节至至少约8的值，并在压力下加热浆料。 在通过向浆料中加入碱性溶液的加热过程中，浆料的pH值保持在8以上。 当浆料中的残余酸基本上完全中和时，纤维与浆料分离。 纯化的硝化纤维素具有较低的粘度和令人满意的稳定性。