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    • 43. 发明公开
    • Heat-resistant stretched film and production process thereof
    • Wärmebeständige,gereckte Folie und Verfahren zu ihrer Herstellung。
    • EP0347062A2
    • 1989-12-20
    • EP89305475.9
    • 1989-05-31
    • KUREHA KAGAKU KOGYO KABUSHIKI KAISHA
    • Mizuno, ToshiyaTeramoto, YoshikichiSaito, TakeshiWakabayashi, JuichiSatake, YoshikatsuKashiwadate, KenKatto, Takayuki
    • C08G75/02C08L81/02
    • C08G75/0245C08G75/024C08L81/02H05K1/0333C08L81/00
    • 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°C and a shear rate of 200 sec⁻¹. The poly(arylene thioether-ketone) has predominant recurring units of the formula
      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 310-380°C;
      (b) a melt crystallization temperature, Tmc (420°C/10 min) being at least 210°C and a residual melt crystallization enthalpy, ΔHmc (420 °C/10 min) being at least 10 J/g; and
      (c) a reduced viscosity being 0.3-2 dℓ/g at 25°C and a polymer concentration of 0.5 g/dℓ in 98% sulfuric acid.
    • 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℃和200秒-1的剪切速率下测得的熔体粘度至少为1,000泊。 聚(亚芳基硫醚 - 酮)具有主要的式CHEM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 ) - (c):(a)熔点,Tm为310-380℃; (b)熔融结晶温度Tmc(420℃/ 10分钟)为至少210℃,残余熔融结晶焓DELTA Hmc(420℃/ 10分钟)为至少10J / 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。 <
    • 44. 发明公开
    • Process for the preparation of cross-linked polyarylene sulfide
    • Verfahren zur Herstellung von vernetzten Polyarylsulfiden。
    • EP0344977A2
    • 1989-12-06
    • EP89305329.8
    • 1989-05-25
    • KUREHA KAGAKU KOGYO KABUSHIKI KAISHA
    • Iizuka, YoHosokawa, ToshioItoh, YoshinobuYamamoto, ShinjiKusida, KazuoKatto, Takayuki
    • C08G75/02
    • C08G75/0254C08G75/0231
    • A process for the preparation of a granular polyarylene sulfide comprises:

      A) an initial-stage polymerization step for obtaining a polyarylene sulfide by reacting an alkali metal sulfide, a dihaloaromatic compound and a polyhaloaromatic compound, having three or more halogen substituents per molecule, in an organic amide solvent in the presence of from 0.5 to 2.9 moles of water per mol of said alkali metal sulfide at a temperature of from 180 to 235 o C until the total conversion ratio of said dihalo- and polyhaloaromatic compounds reaches from 50 to 98% and the melt viscosity of a polyarylene sulfide obtained is from 0.5 to 500 Pas (5 to 5,000 poise) measured at 310 o C and a shear rate of 1,200/second;
      (B) a temperature raising step in which, while adjusting the amount of water as necessary to from 2.5 to 7 moles per mol of fed alkali metal sulfide, the temperature is raised from the temperature of step (A) to 240 o C under such conditions that the melt viscosity of the polymer obtained at 240 o C is from 30 to 1000 Pas (300 to 10,000 poise) measured at 310 o C and a shear rate of 1,200/second and the temperature is further raised from 240 o C to the temperature for step (C) at a rate of from 10 to 100 o C/hour; and
      (C) a second-stage polymerization step for further continuing polymerisation at a temperature of from 245 to 290 o C until the melt viscosity of the final polyarylene sulfide product reaches a value not lower than 1 x 10⁴ Pas (1 x 10⁵ poise) measured at 330 o C and a shear rate of 2/second.
    • 制备颗粒状聚芳硫醚的方法包括:A)初级阶段聚合步骤,用于通过使每分子具有三个或更多个卤素取代基的碱金属硫化物,二卤代芳族化合物和多卤芳族化合物反应获得聚芳硫醚, 在约180-235℃的温度下,每摩尔所述碱金属硫化物在0.5-2.9摩尔水存在下进行有机酰胺溶剂,直到所述二卤代和多卤代芳族化合物的总转化率达到50至 98%,聚酰亚胺硫化物的熔体粘度在310℃,剪切速度为1200 /秒时为0.5〜500Pa·s(5〜5000泊) (B)升温步骤,其中,当每摩尔进料的碱金属硫化物根据需要将水量调整为2.5至7摩尔时,将温度从步骤(A)的温度升高至240℃ 在240℃下获得的聚合物的熔体粘度在310℃和剪切速率为1200 /秒下测得的30至1000Pa·s(300至10,000泊)和温度进一步提高的条件下, 以20℃至100℃/小时的速率从240℃至步骤(C)的温度; 和(C)第二阶段聚合步骤,用于在245至290℃的温度下进一步连续聚合,直到最终聚芳硫醚产物的熔体粘度达到不低于1×10 4 Pa 1×10 5泊),在330℃下测定,剪切速率为2 /秒。 ,