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22 条记录 (耗时 0.048 秒)

    Process for producing carbon fibers and the carbon fibers produced by the process
    1.
    发明授权
    Process for producing carbon fibers and the carbon fibers produced by the process 失效
    用于生产碳纤维和由该方法生产的碳纤维的方法

    公开(公告)号：US4863708A

    公开(公告)日：1989-09-05

    申请号：US293563

    申请日：1989-01-03

    申请人： Ikuo Seo ,  Yasuo Sakaguchi ,  Ken Kashiwadate

    发明人： Ikuo Seo ,  Yasuo Sakaguchi ,  Ken Kashiwadate

    IPC分类号： C08F4/14 ,  C10C3/00 ,  D01F9/24

    CPC分类号： C10C3/00 ,  D01F9/24

    摘要： Disclosed herein is a process for producing pitch-based carbon fibers having the specific properties comparable to those of polyacrylonitrile(PAN)-based carbon fibers, wherein an optically isotropic pitch obtained by polymerizing naphthalene at a temperature of not more than 330.degree. C. and heating the thus obtained polymeric material at a temperature of 330.degree. to 440.degree. C. while introducing an inert gas thereinto to remove volatile components therefrom, is subjected to melt-spinning, infusibilization (therosetting) and carbonization and the thus obtained carbonized-fibers are subjected to heat treatment at a temperature of not less that 900.degree. C. to obtain the carbon fibers.

    摘要翻译： 本文公开了一种制备具有与基于聚丙烯腈（PAN）的碳纤维相当的特性的沥青类碳纤维的方法，其中通过在不高于330℃的温度下聚合萘获得的光学各向同性沥青和 在330〜440℃的温度下加热由此得到的聚合物材料，同时向其中引入惰性气体以除去挥发性成分，进行熔融纺丝，消融（凝固）和碳化，由此得到的碳化纤维 在不低于900℃的温度下进行热处理，得到碳纤维。

    Composition comprising polyarylene sulfide and polyamide composition
    3.
    发明授权
    Composition comprising polyarylene sulfide and polyamide composition 失效
    包含聚芳硫醚和聚酰胺组合物的组合物

    公开(公告)号：US5436300A

    公开(公告)日：1995-07-25

    申请号：US77536

    申请日：1993-06-17

    申请人： Ken Kashiwadate ,  Mitsuru Hoshino ,  Shuji Morinishi ,  Yukichika Kawakami

    发明人： Ken Kashiwadate ,  Mitsuru Hoshino ,  Shuji Morinishi ,  Yukichika Kawakami

    IPC分类号： C08L77/00 ,  C08L81/02 ,  C08F283/04

    CPC分类号： C08L81/02 ,  C08L77/00

    摘要： A composition is disclosed, comprising(1) a polyamide as a dispersed phase and(2) a polyarylene sulfide as a continuous phase, wherein at least a part of the polyarylene sulfide has at least one modifying group directly bonded to the aromatic ring thereof, where the modifying group is selected from the group consisting of a carboxyl group, an alkali metal salt of a carboxyl group, and an alkaline earth metal salt of a carboxyl group, and where the modifying group is present at a ratio of 10 or more millimoles of the modifying group per kilogram of the polyamide. The composition has improved mechanical strength.

    摘要翻译： 公开了一种组合物，其包括（1）作为分散相的聚酰胺和（2）作为连续相的聚芳硫醚，其中至少一部分聚芳硫醚具有至少一个与其芳环键合的修饰基团， 其中所述改性基团选自羧基，羧基的碱金属盐和羧基的碱土金属盐，并且其中所述改性基团以10或更多毫摩尔的比例存在 的改性基团每千克聚酰胺。 组合物具有改善的机械强度。

    Poly(arylene thioether-ketones) improved in melt stability and preparation process thereof
    5.
    发明授权
    Poly(arylene thioether-ketones) improved in melt stability and preparation process thereof 失效
    聚（亚芳基硫醚 - 酮）改进了熔体稳定性及其制备方法

    公开(公告)号：US5008370A

    公开(公告)日：1991-04-16

    申请号：US431118

    申请日：1989-11-03

    申请人： Ken Kashiwadate ,  Yoshikatsu Satake ,  Takashi Kaneko ,  Masahiro Tada ,  Takayuki Katto

    发明人： Ken Kashiwadate ,  Yoshikatsu Satake ,  Takashi Kaneko ,  Masahiro Tada ,  Takayuki Katto

    IPC分类号： C08G75/02

    CPC分类号： C08G75/0277 ,  C08G75/024

    摘要： Disclosed herein is a process for the preparation of a poly(arylene thioether-ketone) improved in melt stability, which comprises subjecting a poly(arylene thioether-ketone) (PTK) to a heat treatment for 5-5.times.10.sup.3 minutes in a powdery state and a temperature range of 200.degree.-350.degree. C. The PTK has predominant recurring units of the formula ##STR1## and has a melting point, Tm of 310.degree.-380.degree. C., a melt crystallization temperature, Tmc (420.degree. C./10 min) of at least 210.degree. C., a residual melt crystallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) of at least 10 J/g and a reduced viscosity of 0.2-2.0 dl/g. PTKs improved in melt stability and prepared in accordance with the above-described preparation process are also disclosed.

    摘要翻译： 本文公开了一种改进熔体稳定性的聚（亚芳基硫醚 - 酮）的制备方法，其包括使聚（亚芳基硫醚 - 酮）（PTK）在粉末状态下热处理5-5×1033分钟， 温度范围为200°-350℃。PTK具有主要重复单元的式“IMAGE”，其熔点Tm为310-380℃，熔融结晶温度Tmc（420℃） / 10分钟），残留熔融结晶焓，DELTA Hmc（420℃/分钟）为至少10J / g，比浓粘度为0.2-2.0dl / g。 还公开了根据上述制备方法制备的熔融稳定性提高的PTK。

    Heat-resistant stretched film and production process thereof
    8.
    发明授权
    Heat-resistant stretched film and production process thereof 失效
    耐热拉伸膜及其制造方法

    公开(公告)号：US5286814A

    公开(公告)日：1994-02-15

    申请号：US690318

    申请日：1991-04-26

    申请人： Toshiya Mizuno ,  Yoshikichi Teramoto ,  Takeshi Saito ,  Juichi Wakabayashi ,  Yoshikatsu Satake ,  Ken Kashiwadate ,  Takayuki Katto

    发明人： Toshiya Mizuno ,  Yoshikichi Teramoto ,  Takeshi Saito ,  Juichi Wakabayashi ,  Yoshikatsu Satake ,  Ken Kashiwadate ,  Takayuki Katto

    IPC分类号： C08G75/02 ,  C08L81/02 ,  H05K1/03 ,  C08G75/14 ,  C08F283/00

    CPC分类号： C08G75/0245 ,  C08G75/024 ,  C08L81/02 ,  H05K1/0333

    摘要： A heat-resistant stretched film is obtained by stretching a resin composition comprising 100 parts by weight of a poly(arylene sulfide) of a substantially linear structure and 5 to less than 100 parts by weight of a melt-stable poly(arylene thioether-ketone). The poly(arylene sulfide) has a melt viscosity of at least 1,000 poises as measured at 310.degree. C. and a shear rate of 200 sec.sup.-1. The poly(arylene thioether-ketone) has predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- groups are bonded in the para position to each other through the benzene ring, and has the following physical properties (a)-(c):(a) a melting point, Tm being 310.degree.-380.degree. C.;(b) a melt crystallization temperature, Tmc (420.degree. C./10 min) being at least 210.degree. C. and a residual melt crystallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) being at least 10 J/g; and(c) a reduced viscosity being 0.3-2 dl/g at 25.degree. C. and a polymer concentration of 0.5 g/dl in 98% sulfuric acid.

    摘要翻译： 通过拉伸含有100重量份基本上线性结构的聚（亚芳基硫醚）和5至小于100重量份熔体稳定的聚（亚芳基硫醚 - 酮）的树脂组合物来获得耐热拉伸膜 ）。 聚（亚芳基硫醚）在310℃下测得的熔体粘度至少为1,000泊，剪切速率为200秒-1。 聚（亚芳基硫醚酮）具有主要的式（*化学结构*）的重复单元，其中-CO-和-S-基通过苯环彼此键合在对位，并且具有以下物理 性质（a） - （c）：（a）熔点，Tm为310-380℃。 （b）熔融结晶温度Tmc（420℃/分钟）至少为210℃，残余熔融结晶焓（ΔH）为420℃至10℃ /G; 和（c）在25℃下的比浓粘度为0.3-2dl / g，在98％硫酸中的浓度为0.5g / dl。