Para-phenylene sulfide block copolymer, process for the production of
the same
    2.
    发明授权
    Para-phenylene sulfide block copolymer, process for the production of the same 失效
    对亚苯基硫醚嵌段共聚物,生产过程相同

    公开(公告)号:US4785057A

    公开(公告)日:1988-11-15

    申请号:US858851

    申请日:1986-04-30

    摘要: A para-phenylene sulfide block copolymer consisting essentially of a recurring unit (A) ##STR1## and a recurring unit (B) ##STR2## said recurring units (A) being present in the form of a block of 20 to 5,000 units of (A) on the average in the molecular chain, the mol fraction of the recurring units (A) being in the range of 0.50 to 0.98, the block copolymer having a melt viscosity (.eta.*) of 50 to 100,000 poise as determined at 310.degree. C. at a shear rate of 200 sec.sup.-1 and having: (a) a glass transition temperature (Tg) of 20.degree. to 80.degree. C., (b) a crystalline melting point (Tm) of 250.degree. to 285.degree. C., and (c) a crystallization index (Ci) of 15 to 45, this value being that of the heat-treated, but not stretch-oriented copolymer, which block copolymer is preferably produced by a process comprising a first step of heating an aprotic polar organic solvent containing a dihaloaromatic compound consisting essentially of a m-dihalobenzene and an alkali metal sulfide to form a reaction liquid (E) containing a m-phenylene sulfide polymer consisting essentially of recurring units (B) ##STR3## and a second step of adding a p-dihalobenzene to the reaction liquid (E) and heating the mixture in the presence of an alkali metal sulfide and an aprotic polar organic solvent to form a block copolymer consisting essentially of the recurring units (B) and recurring units (A) ##STR4##

    摘要翻译: 基本上由重复单元(A)< IMAGE>和重复单元(B)< IMAGE>组成的对亚苯基硫醚嵌段共聚物表示重复单元(A)以20-5,000单位( A)平均分子链中,重复单元(A)的摩尔分数在0.50〜0.98范围内,嵌段共聚物的熔体粘度(η)为50〜100,000泊,在310℃下测定 (a)玻璃化转变温度(Tg)为20〜80℃,(b)结晶熔点(Tm)为250〜285℃ ,(c)15〜45的结晶指数(Ci),该值为热处理而不是拉伸取向共聚物的值,该嵌段共聚物优选通过包括加热第 含有主要由间二卤代苯和碱金属硫化物组成的二卤代芳族化合物的非质子极性有机溶剂形成反应液 (E),其包含基本上由重复单元(B)组成的间苯硫醚聚合物,第二步是将对二卤代苯加入到反应液(E)中,并在碱金属硫化物存在下加热混合物 和非质子极性有机溶剂以形成基本上由重复单元(B)和重复单元(A)组成的嵌段共聚物。

    Polyarylenesulfide complexes, processes for production and uses thereof
    3.
    发明授权
    Polyarylenesulfide complexes, processes for production and uses thereof 失效
    聚芳硫醚络合物,其制备方法和用途

    公开(公告)号:US4613654A

    公开(公告)日:1986-09-23

    申请号:US734321

    申请日:1985-05-15

    CPC分类号: C08G75/0295

    摘要: Novel polyarylenesulfide complexes are obtained by reacting a polyarylenesulfide with 0.05 to 20 mols of at least one strongly basic metal compound per 100 mols of arylenesulfide groups contained in the polyarylenesulfide under a uniformly dispersed condition, and have the properties defined in the following (A) through (C):(A) .eta.*/.eta..sub.0 *=3 to 100, wherein the .eta.* and .eta..sub.0 * stand for melt viscosities of the complex and the starting polyarylenesulfide, respectively;(B) .DELTA.T.sub.c2 =(T.sub.c2).sub.0 -T.sub.c2 =10 to 100.degree. C., wherein T.sub.c2 and (T.sub.c2).sub.0 stand for crystallization temperaturs of the complex and the starting polyarylenesulfide, respectively, observed when the polyarylenesulfide is cooled from its moten state; and(C) .DELTA.(.DELTA.E)=.DELTA.E-(.DELTA.E).sub.0 =5 to 75 kcal/mol, wherein .DELTA.E and (.DELTA.E).sub.0 stand for apparent flow activation energies of the complex and the starting polyarylenesulfide, respectively.The polyarylenesulfide complexes have higher melt viscosity with improved flow characteristics.

    摘要翻译: 通过在均匀分散的条件下使多芳基硫化物与包含在聚芳基硫醚中的每100摩尔芳基硫化物基团中的至少一种强碱性金属化合物与0.05至20摩尔的至少一种强碱性金属化合物反应获得新颖的聚芳硫醚络合物,并具有以下(A)至 (C):(A)eta * / eta 0 * = 3至100,其中eta *和eta 0 *分别表示络合物和起始多芳基硫化物的熔体粘度; (B)DELTA Tc2 =(Tc2)0-Tc2 = 10〜100℃,其中Tc2和(Tc2)0分别代表复合物和起始多芳基硫化物的结晶温度,当聚芳基硫醚从其燃烧 州; 和(C)DELTA(DELTA E)= DELTA E-(DELTA E)0 = 5至75kcal / mol,其中DELTA E和(DELTA E)0分别表示络合物和起始聚芳基硫醚的表观流动活化能 。 聚芳硫醚配合物具有较高的熔体粘度和改善的流动特性。

    Method of preventing corrosion of apparatus for melt-processing
polyarylene thioethers
    4.
    发明授权
    Method of preventing corrosion of apparatus for melt-processing polyarylene thioethers 失效
    防止熔融加工聚亚芳基硫醚的设备腐蚀的方法

    公开(公告)号:US4746698A

    公开(公告)日:1988-05-24

    申请号:US927825

    申请日:1986-11-05

    CPC分类号: C23F11/00 C08K3/22 C08K5/098

    摘要: Corrosion of a melt-processing apparatus for processing a polyarylene thioether at a temperature higher than the melting point thereof is prevented by a method which comprises adding to 100 parts by weight of the polyarylene thioether 0.001 to 10 parts by weight of at least one member selected from the group consisting of (i) hydroxides of metals of the group IIa of the Periodic Table, (ii) oxides of metals of the group IIa of the Periodic Table and (iii) aromatic carboxylic acid salts of metals of the group IIa of the Periodic Table.By this method, even if the melt-processing article obtained is exposed to moisture, the electrical properties of the article formed (for example, insulation characteristics) and the water resistance are not substantially deteriorated.

    摘要翻译: 在高于其熔点的温度下处理聚亚芳基硫醚的熔融加工装置的腐蚀通过以下方法来防止:包括将100重量份的聚亚芳基硫醚加入到0.001重量份至10重量份的至少一个选自 由(i)元素周期表IIa族金属的氢氧化物,(ii)元素周期表IIa族金属的氧化物和(iii)IIa族金属的芳族羧酸盐组成的组 周期表。 通过这种方法,即使所得到的熔融加工制品暴露于水分,所形成的制品(例如绝缘特性)和耐水性的电性能基本上不劣化。

    Transparent and little colored polyarylenethioether primary melt
molding, preparation and utilization thereof
    7.
    发明授权
    Transparent and little colored polyarylenethioether primary melt molding, preparation and utilization thereof 失效
    透明和少许的聚芳醚乙醚一次熔融成型,其制备和利用

    公开(公告)号:US4801416A

    公开(公告)日:1989-01-31

    申请号:US924346

    申请日:1986-10-24

    摘要: A polyarylenethioether primary melt formed article having a Hunter whiteness higher than 30% and a parallel light transmittance Tp higher than 60%, as measured for a sheet with a thickness of 0.3 mm, at the process for obtaining the article which comprises producing a polyarylenethioether according to the polymerization reaction comprising a dehalogenation/sulfidization reaction between an alkali metal sulfide and a dihaloaromatic compound in a polar organic solvent by carrying out the reaction with the addition of an effective amount of a halo-substituted organic compound to obtain a stabilized polyarylenethioether, and then subjecting the polyarylenethioether to melt extrusion. The melt formed article thus produced can be subjected to further melt processing to produce a secondary melt formed article or structure of polyarylenethioether.

    摘要翻译: 在获得该制品的方法中,对厚度为0.3mm的片材测量的具有Hunter白度高于30%的Hunter白度高于60%的平均光透射率Tp的聚亚芳基硫醚一次熔融成型制品包括制备聚亚芳基醚, 涉及在极性有机溶剂中包含碱金属硫化物和二卤代芳族化合物在极性有机溶剂中的脱卤/硫化反应的聚合反应,通过加入有效量的卤代有机化合物进行反应,得到稳定的聚亚芳基醚醚,和 然后使聚芳醚乙醚熔融挤出。 如此制造的熔融成形体可以进行进一步的熔融加工以产生二亚乙烯硫醚的二次熔融成形制品或结构。