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公开(公告)号：US5219959A
公开(公告)日：1993-06-15
申请号：US815858
申请日：1992-01-02
申请人： Hiroshi Inoue , Toshikazu Kato , Masaaki Ohtsuru
发明人： Hiroshi Inoue , Toshikazu Kato , Masaaki Ohtsuru
IPC分类号： C08G75/02
CPC分类号： C08G75/0295
摘要： A poly(phenylene sulfide) material containing predominantly para-phenylene sulfide structural units and having a melt viscosity of at least 5 poises (at 300.degree. C.) may be treated or reacted with an alkali metal sulfide and/or hydrosulfide in a polar aprotic solvent at a relatively low temperature in the range of 150.degree.-230.degree. C. so as to introduce an increased amount of reactive thiolate or thiol end groups to the polymer molecule and hence to enhance the reactivity of the polymer material. The thus modified and highly reactive poly(phenylene sulfide) material exhibits an improved compatibility with other polymers and is expected to be useful in preparation of polymer alloys of improved or modified physical and chemical properties.
摘要翻译： 主要含有对亚苯基硫化物结构单元并且具有至少5泊（在300℃）的熔体粘度的聚（苯硫醚）材料可以与极性非质子中的碱金属硫化物和/或氢硫化物反应 溶剂在150-230℃的较低温度下进行，从而将增加量的反应性硫醇盐或硫醇端基引入聚合物分子，从而提高聚合物材料的反应性。 如此改性和高反应性聚（苯硫醚）材料表现出与其它聚合物的改善的相容性，并且预期可用于制备具有改进或改性的物理和化学性质的聚合物合金。
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2.发明授权
公开(公告)号：US5120804A
公开(公告)日：1992-06-09
申请号：US596661
申请日：1990-10-11
申请人： Hiroshi Inoue , Toshikazu Kato , Masaaki Ohtsuru
发明人： Hiroshi Inoue , Toshikazu Kato , Masaaki Ohtsuru
IPC分类号： C08G75/02
CPC分类号： C08G75/0254 , C08G75/0245
摘要： There are disclosed a class of halogen-ended polyalkylene glycols and halogen-ended polyolefins (II) which are copolymerizable with polyarylene sulfides or sulfone-based polymers. These halogen-ended polymers may be readily copolymerized with polyarylene sulfides or sulfone-based polymers to provide polyphenylene sulfide copolymers (I) exhibiting increased crystallization speeds. These high crystallization speeds enable the copolymers to be molded in a low-temperature mold, for example, at 100.degree. C. or less, while providing fully crystallized moldings having excellent heat resistance properties.
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公开(公告)号：US4918134A
公开(公告)日：1990-04-17
申请号：US318797
申请日：1989-03-03
申请人： Toshikazu Kato , Hiroshi Inoue , Noriaki Emura
发明人： Toshikazu Kato , Hiroshi Inoue , Noriaki Emura
CPC分类号： C08K3/34 , C08G75/0277 , C08G75/0295 , C08K3/26 , C08K3/36
摘要： In a process for partially curing a powdery polyarylene sulfide resin which comprises heating the powdery resin either in the absence or presence of oxygen while agitating so as to attain an increased melt viscosity in a range suitable for further processing or molding of the resin, an improvement comprising that the resin together with an added specific inorganic additive undergoes the partial curing treatment at temperatures in the range of from a temperature just below the melting point of the starting resin down to a temperature lower by 80.degree. C. than said melting point. The additive is selected from the group consisting of silica, hydrophobic silica, talc and calcium carbonate and mixtures thereof. By use of the additive, the powder characteristics or fluidity properties of the starting resin are substantially retained during and after the partial curing treatment, the static electricity generated by agitation of the resin during the treatment is significantly reduced, and the resin is effectively prevented from forming scaling on the interior walls of the reactor vessel used for the process. Therefore, the agitation of the powdery resin can be uniformly and efficiently effected so that a desired control of the melt viscosity is easily achieved.
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公开(公告)号：US4895959A
公开(公告)日：1990-01-23
申请号：US363692
申请日：1989-06-09
申请人： Toshikazu Kato , Hiroshi Inoue , Kensuke Ogawara
发明人： Toshikazu Kato , Hiroshi Inoue , Kensuke Ogawara
IPC分类号： C07D207/26 , C07D207/267
CPC分类号： C07D207/267
摘要： A method for purifying N-methyl-2-pyrrolidone containing thiophenol and/or diphenyl disulfide is disclosed, comprising adding a polyhalogenated aromatic compound and an alkali metal hydroxide and/or an alkali metal carbonate to the N-methyl-2-pyrrolidone containing thiophenol and/or diphenyl disulfide, heat treating the mixture, and subjecting the mixture to separation by distillation. The thiophenol and/or diphenyl disulfide can be removed with ease and at low cost.
摘要翻译： 公开了一种用于纯化含有苯硫酚和/或二苯基二硫化物的N-甲基-2-吡咯烷酮的方法，包括向含有N-甲基-2-吡咯烷酮的苯硫酚中加入多卤代芳族化合物和碱金属氢氧化物和/或碱金属碳酸盐 和/或二苯基二硫醚，热处理混合物，并通过蒸馏使混合物分离。 苯硫酚和/或二苯基二硫化物可以容易且以低成本除去。
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5.发明授权
公开(公告)号：US4845190A
公开(公告)日：1989-07-04
申请号：US137693
申请日：1987-12-24
申请人： Hiroshi Inoue , Toshikazu Kato , Noriaki Emura
发明人： Hiroshi Inoue , Toshikazu Kato , Noriaki Emura
CPC分类号： C08G75/0281 , C08G75/0254
摘要： In a process for preparing polyarylene sulfides by reacting a dihalo-aromatic compound with a sulfur source in an organic amide solvent in the presence of an alkali metal salt of carboxylic acid as a polymerization aid or assistant, a specific class of carboxylic acids are employed for preparing the alkali metal salt polymerization aid. The specific carboxylic acids are of the general formula: R(COOH).sub.n (wherein R is a C.sub.1 -C.sub.20 organic radical and n is an integer not less than 1) and have a solubility of not less than 3 g/100 ml in ethanol at 20.degree. C. Use of such a carboxylic acid in the process permits the recovery thereof from the polymerization mixture to be effected with significantly improved efficiency.
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公开(公告)号：US4789729A
公开(公告)日：1988-12-06
申请号：US125667
申请日：1987-11-25
申请人： Nobuo Nagira , Toshikazu Kato , Hiroshi Inoue
发明人： Nobuo Nagira , Toshikazu Kato , Hiroshi Inoue
CPC分类号： C08G75/0281
摘要： A polyarylene sulfide having a low content of electrolytic ions is economically recovered from a mixture consisting mainly of polyarylene sulfide and an alkali metal halide which mixture is obtained by reacting a polyhalogenated aromatic compound and an alkali metal sulfide containing water in an organic polar solvent, by dehydrating the mixture by distillation, mixing the dehydrated mixture with a solvent which is a poor solvent for both polyarylene sulfide and alkali metal halide and which is soluble in the organic polar solvent to prepare a slurry consisting essentially of the polyarylene sulfide and the alkali metal halide, subjecting the slurry to solid-liquid separation, washing the resultant cake with the poor solvent, drying the cake, adding water to the cake to wash away the alkali metal halide through dissolution, and subjecting the slurry to solid-liquid separation to recover polyarylene sulfide. Such a polyarylene sulfide is particularly useful for use in electronic and electric components and molded articles such as films, sheets and fibers.
摘要翻译： 具有低电解离子含量的聚芳硫醚通过主要由聚芳硫醚和碱金属卤化物组成的混合物经济地回收，该混合物通过使多卤化芳族化合物和含有有机极性溶剂的碱金属硫化物反应而得到， 通过蒸馏使混合物脱水，将脱水混合物与作为聚芳硫醚和碱金属卤化物的不良溶剂的溶剂混合并且可溶于有机极性溶剂中以制备基本上由聚芳硫醚和碱金属卤化物组成的浆料 将浆料进行固液分离，用不良溶剂洗涤滤饼，干燥滤饼，向滤饼中加入水，通过溶解洗涤碱金属卤化物，并对浆料进行固液分离，回收聚亚芳基 硫化物。 这种聚芳硫醚特别可用于电子和电气部件以及模制品如薄膜，片材和纤维。
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公开(公告)号：US5239054A
公开(公告)日：1993-08-24
申请号：US808485
申请日：1991-12-17
申请人： Toshihiko Muneto , Toshikazu Kato , Hiroshi Inoue
发明人： Toshihiko Muneto , Toshikazu Kato , Hiroshi Inoue
CPC分类号： C08K3/22 , C08G75/0277 , C08G75/0295 , C08K3/16 , C08K3/26
摘要： The nuisance metal-corrosive property is effectively lowered by mixing an heating polyarylene sulfide resins with (i) zinc carbonate; (ii) zinc carbonate and an alkaline earth metal chloride; (iii) zinc oxide and/or hydroxide; or (iv) zinc oxide and/or hydroxide, and an alkaline earth metal chloride in the presence of a good solvent for the resins.
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公开(公告)号：US5032672A
公开(公告)日：1991-07-16
申请号：US361201
申请日：1989-06-05
申请人： Toshikazu Kato , Hiroshi Inoue , Kensuke Ogawara
发明人： Toshikazu Kato , Hiroshi Inoue , Kensuke Ogawara
IPC分类号： C08G75/02
CPC分类号： C08G75/025
摘要： An improved process for preparing poly(phenylene sulfide) is provided. In the process, an additional amount of solvent is introduced into the reaction mixture, when a conversion of at least 80% of dihalobenzene, one of the reactants, has been achieved. By the measure, heavy scaling which has been experienced with the conventional processes is effectively inhibited.
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公开(公告)号：US4981947A
公开(公告)日：1991-01-01
申请号：US288342
申请日：1988-12-22
CPC分类号： C08G75/0254 , C08G69/42 , C08G75/0236
摘要： A class of amide group-containing aromatic dihalide compounds are sulfidized to provide a novel class of aromatic sulfideamide polymers increased in crystalline melting point (T.sub.m). The polymers exhibit excellent resistance to high temperatures, resistance to solvents, flame-retardant properties and improved mechanical properties.
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公开(公告)号：US5151495A
公开(公告)日：1992-09-29
申请号：US609141
申请日：1990-11-05
申请人： Hiroshi Inoue , Toshikazu Kato , Kensuke Ogawara
发明人： Hiroshi Inoue , Toshikazu Kato , Kensuke Ogawara
CPC分类号： C08G75/0254
摘要： In a process for producing poly (p-phenylenesulfide) from an alkali metal sulfide and a p-dihalobenzene, a product polymer of an advantageously increased molecular weight is obtained by: providing a mixture comprising an alkali metal sulfide, a polar aprotic solvent, a sodium salt of an aliphatic carboxylic acid represented by the general formula: RCOONa (where R is an aliphatic hydrocarbon group having 1-20 carbon atoms), the content of water present in said mixture apart from any water of hydration or crystallization which may be contained in said sulfide and sodium salt being in the range of 5 to 20 moles per mole of said sulfide; thermally dehydrating said sulfide component in said mixture by removing at least part of the water from said mixture; and then contacting the resulting dehydrated mixture with a p-dihalobenzene.
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