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    Process for carbonizing cellulose fiber or the products thereof
    21.
    发明授权
    Process for carbonizing cellulose fiber or the products thereof 失效
    碳化纤维纤维或其制品的方法

    公开(公告)号：US3661616A

    公开(公告)日：1972-05-09

    申请号：US3661616D

    申请日：1969-10-24

    申请人： NOTTO BOSEKI CO LTD

    发明人： MIYAMICHI KAZUO

    IPC分类号： D01F9/16 ,  C01B31/07

    CPC分类号： D01F9/16

    摘要： Cellulose fiber or the product thereof is treated with a strength increasing agent selected from the group consisting of (A) at least one compound selected from ammonium sulfite, ammonium bisulfite, ammonium bisulfate, or ammonium thiosulfate; (B) a mixture of at least one compound selected from ammonium sulfate, ammonium bisulfate, ammonium sulfite, ammonium bisulfite, ammonium thiosulfate, ammonium sulfate, or ammonium imidosulfonate with at least one organic nitrogen base; and (C) a mixture of an organic nitrogen base and an acid selected from sulfuric acid, sulfurous acid or sulfamic acid.

    摘要翻译： 纤维素纤维或其产物用选自（A）至少一种选自亚硫酸铵，亚硫酸氢铵，硫酸氢铵或硫代硫酸铵的至少一种化合物的增强剂处理; （B）选自硫酸铵，硫酸氢铵，亚硫酸铵，亚硫酸氢铵，硫代硫酸铵，硫酸铵或亚氨磺酸铵中的至少一种化合物与至少一种有机氮碱的混合物; 和（C）有机氮碱和选自硫酸，亚硫酸或氨基磺酸的酸的混合物。

    Process for carbonizing cellulosic fibrous substrates
    22.
    发明授权
    Process for carbonizing cellulosic fibrous substrates 失效
    用于碳化纤维素基质的方法

    公开(公告)号：US3617220A

    公开(公告)日：1971-11-02

    申请号：US3617220D

    申请日：1970-03-13

    申请人： STEVENS & CO INC J P

    发明人： MOORE DONALD R ,  ROSS STANLEY E ,  TESORO GIULIANA C

    IPC分类号： D01F9/16 ,  C01B31/07

    CPC分类号： D01F9/16

    摘要： A process for improving the thermal carbonization of cellulosic substrates comprising treating said substrates prior to carbonization with a catalytic amount of at least one compound selected from esters of phosphoric acid, esters of phosphorothioic acid, phosphoramidic acids, alkylphosphoramidic acids, alkylphosphonic acids, alkylphosphonothionic acids, and phosphonitrile amide derivatives and heating said treated substrates until a carbonized product having a carbon content of at least 50 percent weight carbon is produced.