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    Thermal stabilization of polymers
    1.
    发明授权
    Thermal stabilization of polymers 失效
    聚合物的热稳定性

    公开(公告)号：US3867338A

    公开(公告)日：1975-02-18

    申请号：US40813473

    申请日：1973-10-19

    Applicant: CELANESE CORP

    Inventor： STUETZ DAGOBERT E ,  DI PIETRO JOSEPH

    IPC: C08K5/19 ,  C08F45/60 ,  C08G51/60

    CPC classification number: C08K5/19

    Abstract: A composition comprising an addition polymer and a stabilizing amount of a compound selected from the group consisting of phenanthrylmethyl triethyl ammonium chloride and 9,10dihydroanthrymethyl triethyl ammonium chloride and 9,10dihydroanthrylmethyl triethyl ammonium chloride.

    Abstract translation: 包含加成聚合物和稳定量的选自菲基甲基三乙基氯化铵和9,10-二氢福音甲基三乙基氯化铵和9,10-二氢蒽基甲基三乙基氯化铵的化合物的组合物。

    Continuous production of uniform graphite fibers
    3.
    发明授权
    Continuous production of uniform graphite fibers 失效
    连续生产均匀的石墨纤维

    公开(公告)号：US3634035A

    公开(公告)日：1972-01-11

    申请号：US3634035D

    申请日：1969-04-28

    Applicant: CELANESE CORP

    Inventor： STUETZ DAGOBERT E ,  BELOHLAV LEO R ,  READER ARTHUR M

    IPC: D01F9/14 ,  D01F9/22 ,  D01F9/24 ,  G01B21/04 ,  C01B31/04 ,  C01B31/07

    CPC classification number: D01F9/24 ,  D01F9/14 ,  D01F9/22 ,  G01B21/047

    Abstract: A rapid continuous process is provided for the conversion of a predominantly amorphous carbonaceous fibrous material containing at least 75 percent carbon by weight (preferably at least 90 percent carbon by weight) to a uniform fibrous material of predominantly graphitic carbon. The carbonaceous fibrous material is passed through a reducing flame which imparts a minimum fiber temperature of at least 1,900* C. while the fibrous material is under tension at least sufficient to prevent visible sagging. In a preferred embodiment of the invention, the reducing flame is generated by a fuel-oxidant mixture, e.g. an acetylene and oxygen mixture. Long lengths of graphite yarns having substantially uniform properties, e.g. graphitic composition, Young''s modulus, and tenacity, may be produced through the use of the present process.

    Abstract translation: 提供了一种快速连续的方法，用于将主要为非晶质的碳质纤维材料转化成主要为石墨碳的均匀纤维材料，其含有至少75重量％的碳（优选至少90重量％的碳）。 碳质纤维材料通过还原火焰，其赋予至少1900℃的最小纤维温度，同时纤维材料处于至少足以防止可见下垂的张力下。 在本发明的优选实施方案中，还原火焰是由燃料 - 氧化剂混合物产生的。 乙炔和氧气混合物。 具有基本均匀性质的长长度的石墨纱，例如。 石墨组成，杨氏模量和韧度可以通过使用本发明的方法制备。

    Stabilization and carbonization of acrylic fibrous material
    4.
    发明授权
    Stabilization and carbonization of acrylic fibrous material 失效
    丙烯酸纤维材料的稳定和碳化

    公开(公告)号：US3592595A

    公开(公告)日：1971-07-13

    申请号：US3592595D

    申请日：1968-11-21

    Applicant: CELANESE CORP

    Inventor： GUMP KLAUS H ,  STUETZ DAGOBERT E

    IPC: D01F9/22 ,  D01F11/12 ,  D01F11/14 ,  D06M11/20 ,  D06M11/34 ,  C01B31/07

    CPC classification number: D06M11/34 ,  D01F9/22 ,  D01F9/225 ,  D01F11/12 ,  D01F11/14 ,  D06M11/20

    Abstract: AN IMPROVED PROCESS IS PROVIDED FOR THE STABILIZATION OF AN ACRYLIC FIBROUS MATERIAL CONSISTING PRIMARILY OF RECURRING ACRYLONITRILE UNITS. THE FIBROUS MATERIAL IS SUBJECTED TO A STABILIZATION TREATMENT IN WHICH THE STARTING MATERIAL IS HEATED WHILE IMMERSED IN A SOLUTION OF A LEWIS ACID CAPABLE OF PROMOTING THE CYCLIZATION OF PENDANT NITRILE GROUPS, E.G. A SOLUTION OF STANNIC CHLORIDE. THE EXOTHERM NORMALLY EXHIBITED BY THE PRECURSOR UPON EXPOSURE TO HEAT MAY BE SUBSTANTIALLY REDUCED OR TOTALLY ELIMINATED IN A EFFICIENT MANNER BY SUCH TREATMENT WHICH IS BELIEVED TO RESULT IN A PRODUCT OF IMPROVED CHEMICAL STRUCTURE. THE RESULTING PRODUCT MAY BE DIRECTLY CARBONIZED OR CARBONIZED AND GRAPHITIZED IN AN INERT ATMOSPHERE OR ALTERNATIVELY NEXT SUBJECTED TO RELATIVELY MILD PREOXIDATION CONDITITIONS PRIOR TO TREATMENT IN AN INERT ATMOSPHERE. THE CARBONIZED OR CARBONIZED AND GRAPHITIZED FIBROUS MATERIALS EXHIBIT IMPROVED PHYSICAL PROPERTIES.

    Thermal stabilization of addition polymers
    8.
    发明授权
    Thermal stabilization of addition polymers 失效
    添加聚合物的热稳定性

    公开(公告)号：US3671488A

    公开(公告)日：1972-06-20

    申请号：US3671488D

    申请日：1966-05-19

    Applicant: CELANESE CORP

    Inventor： STUETZ DAGOBERT E

    IPC: C08K5/01 ,  C08G51/58

    CPC classification number: C08K5/01 ,  C08L61/00

    Abstract: A composition comprising an addition polymer and a stabilizing amount of a compound selected from the group consisting of 9,10dihydroanthracene, (1-8)-octahydroanthracene, phenanthrene, (18)-octahydrphenanthrene, acenaphthylene and (1-4)tetrahydroacenaphthene.

    Direct production of graphite fibrous materials from preoxidized acrylic fibrous materials
    9.
    发明授权
    Direct production of graphite fibrous materials from preoxidized acrylic fibrous materials 失效
    从预氧化的丙烯酸纤维材料直接生产石墨纤维材料

    公开(公告)号：US3656903A

    公开(公告)日：1972-04-18

    申请号：US3656903D

    申请日：1969-04-10

    Applicant: CELANESE CORP

    Inventor： STUETZ DAGOBERT E

    IPC: D01F9/22 ,  C01B31/07

    CPC classification number: D01F9/22

    Abstract: A rapid process is provided for the direct conversion of a preoxidized acrylic fibrous material containing at least about 7 percent bound oxygen by weight to a fibrous material of predominantly graphitic carbon. The preoxidized acrylic fibrous material is initially impregnated with an organic protective agent and subsequently is passed through a reducing flame which imparts a minimum fiber temperature of at least 1,900*C. while the fibrous material is under tension at least sufficient to prevent visible sagging. In a preferred embodiment of the invention, the reducing flame is generated by a fuel-oxidant mixture, e.g., an acetylene and oxygen mixture.

    Abstract translation: 提供了一种快速方法，用于将包含至少约7％重量的结合氧的预氧化丙烯酸纤维材料直接转化为主要为石墨碳的纤维材料。 预氧化的丙烯酸纤维材料最初用有机保护剂浸渍，随后通过还原火焰，其赋予至少1900℃的最小纤维温度，同时纤维材料处于至少足以防止可见下垂的张力下。 在本发明的优选实施方案中，还原火焰是由燃料 - 氧化剂混合物，例如乙炔和氧气混合物产生的。

    Stabilization procedure and apparatus for polymeric fibrous materials
    10.
    发明授权
    Stabilization procedure and apparatus for polymeric fibrous materials 失效
    聚合物材料的稳定程序和装置

    公开(公告)号：US3632092A

    公开(公告)日：1972-01-04

    申请号：US3632092D

    申请日：1969-10-10

    Applicant: CELANESE CORP

    Inventor： STUETZ DAGOBERT E

    IPC: B29B13/02 ,  B29C71/02 ,  D01D10/04 ,  D01F9/14 ,  D01F9/22 ,  F27B9/28 ,  F26B13/08

    CPC classification number: D01F9/225 ,  B29B13/023 ,  B29C71/02 ,  D01D10/02 ,  D01D10/0436 ,  D01F9/14

    Abstract: An improved continuous process and apparatus are provided for the uniform stabilization of a strand of polymeric fibrous material which is capable of undergoing thermal stabilization. The strand is continuously wound in a plurality of turns and continuously unwound from at least one rotating roll having a porous surface while a gas at an elevated temperature is expelled outwardly through the surface of the porous roll and penetrates the fibrous configuration of the strand wound upon the roll. In a preferred apparatus in accordance with the present invention the porous roll situated within a heat treatment chamber is internally provided with a plurality of individually adjustable heating elements along its length. The resulting stabilized material retains its original fibrous configuration essentially intact, exhibits enhanced thermal stability, and is capable of undergoing carbonization. In a particularly preferred embodiment of the invention the precursor is an acrylonitrile homopolymer and air having a temperature of at least about 260* C. is expelled through the surface of the rotating porous roll.

    Abstract translation: 提供了一种改进的连续方法和装置，用于均匀稳定能够进行热稳定化的聚合纤维材料束。 股线以多匝连续缠绕，并且连续地从具有多孔表面的至少一个旋转辊展开，同时高温下的气体向外通过多孔辊的表面排出并且穿过缠绕在其上的股线的纤维构型 卷。 在根据本发明的优选设备中，位于热处理室内的多孔辊在其长度上内部设置有多个可单独调节的加热元件。 所得到的稳定化材料保持其原始纤维状基本完整，显示出增强的热稳定性，并且能够进行碳化。 在本发明的一个特别优选的实施方案中，前体是丙烯腈均聚物，并且具有至少约260℃温度的空气通过旋转多孔辊的表面排出。

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