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11. 发明授权

US5854366A Styrene base random copolymer and process for producing the same 失效
标题翻译：苯乙烯基无规共聚物及其制备方法
公开(公告)号：US5854366A
公开(公告)日：1998-12-29
申请号：US744143
申请日：1996-11-12
申请人： Satoshi Nakagawa , Shuji Yoshimi , Hayato Kihara
发明人： Satoshi Nakagawa , Shuji Yoshimi , Hayato Kihara
IPC分类号： C08F2/00 , C08F2/02 , C08F6/06 , C08F6/10 , C08F212/00 , C08F212/06 , C08F212/08 , C08F212/36
CPC分类号： C08F212/08
摘要： A styrene base random copolymer having a weight average molecular weight of 200,000 to 1,000,000, a monovinylbenzene unit and a divinylbenzene unit in an amount of 50 to 500 ppm by weight based on the weight of the monovinylbenzene unit, the divinylbenzene unit consisting of p-divinylbenzene unit and m-divinylbenzene unit, wherein the weight ratio between the p-divinylbenzene unit and the m-divinylbenzene unit is in the range of 100:0 to 75:25, which is superior in impact strength, melt tension, heat resistance and fluidity, and which is capable of being molded within a short molding cycle, is industrially advantageously produced by a continuous bulk polymerization without troubles such as undesirable deposits of polymeric gel material on reactor walls.
摘要翻译：基于单乙烯基苯单元的重量，重均分子量为200,000至1,000,000的苯乙烯基无规共聚物，单乙烯基苯单元和二乙烯基苯单元的量为50至500重量ppm，二乙烯基苯单元由对二乙烯基苯单元和间二乙烯基苯单元，其中对二乙烯基苯单元和间二乙烯基苯单元之间的重量比在100:0至75:25的范围内，其冲击强度，熔体张力，耐热性和流动性优异，并且其能够在短的成型周期内模制，在工业上有利地通过连续本体聚合制备，而没有诸如聚合物凝胶材料在反应器壁上的不希望的沉积物的麻烦。

12. 发明授权

US5559186A Thermoplastic resin compositions comprising blends of polyphenylene ether and polystyrene copolymer resins 失效
标题翻译：包括聚苯醚和聚苯乙烯共聚物树脂的共混物的热塑性树脂组合物
公开(公告)号：US5559186A
公开(公告)日：1996-09-24
申请号：US413158
申请日：1995-03-29
申请人： Takeshi Fujii , Yasuro Suzuki , Hayato Kihara , Takashi Anbo
发明人： Takeshi Fujii , Yasuro Suzuki , Hayato Kihara , Takashi Anbo
IPC分类号： C08L25/04 , C08L51/04 , C08L71/00 , C08L71/12 , C08L25/08
CPC分类号： C08L71/123 , Y10S525/905
摘要： A thermoplastic resin composition having excellent appearance and moldability contains:(A) 1 to 99% by weight of a polyphenylene ether resin,(B) 99 to 1% by weight of a polystyrene resin prepared by copolymerization of: (i) a styrene compound, 100 to 500 ppm by weight of a compound containing 2-6 vinyl groups, and if necessary, a compound capable of copolymerizing with the styrene compound, or (ii) a polystyrene resin obtained by copolymerization of a styrene compound, 100 to 500 ppm by weight of a compound containing 2-6 vinyl groups, a first rubber, and if necessary, a compound capable of copolymerizing with said styrene compound, or a mixture of (i) and (ii). Component (C) is a second rubber which can be present in amounts of about 0 to 100 parts by weight relative to (A) and (B).
摘要翻译：具有优异的外观和成型性的热塑性树脂组合物含有：（A）1〜99重量％的聚苯醚树脂，（B）99〜1重量％的聚苯乙烯树脂，其通过以下方法共聚制备：（i）苯乙烯化合物，100〜500重量ppm的含有2-6个乙烯基的化合物，如果需要，可以与苯乙烯化合物共聚的化合物，或（ii）通过苯乙烯化合物共聚得到的聚苯乙烯树脂100〜500ppm 的含有2-6个乙烯基的化合物，第一橡胶，如果需要，可以与所述苯乙烯化合物共聚的化合物或（i）和（ii）的混合物。组分（C）是相对于（A）和（B）可以以约0至100重量份的量存在的第二橡胶。

13. 发明授权

US5665833A Method for controlling a polymerization rate of styrene resins 失效
标题翻译：苯乙烯树脂聚合速度控制方法
公开(公告)号：US5665833A
公开(公告)日：1997-09-09
申请号：US683197
申请日：1996-07-18
申请人： Hiroto Mukaiyama , Hayato Kihara
发明人： Hiroto Mukaiyama , Hayato Kihara
IPC分类号： C08F4/32 , C08F12/08
CPC分类号： C08F12/08
摘要： The method for controlling a polymerization rate, in a continuous radical polymerization of mainly styrene monomer using a complete mixing type reactor, without substantially changing an average molecular weight of a polymer formed, comprising the steps of: (a) keeping a polymerization temperature substantially constant at t(.degree.C.), (b) setting a feeding rate of the styrene monomer to A times larger rate than that in a polymerization conducted in the absence of a radical polymerization initiator, and (c) controlling an amount of the radical polymerization initiator added in the range of from (0.1/n).times.10.sup.-3 to (2.0/n).times.10.sup.-3 mol per 1 liter of the monomer, n being a number of radical generating functional groups present in one molecule of the radical polymerization initiator, such that a polymer concentration x satisfy the mathematical expression: x.gtoreq.0.3t+6.multidot.(A-1)+12 and that x be kept substantially constant, wherein A represents a ratio of a polymerization rate after being controlled to a rate of polymerization conducted in the absent of the radical polymerization initiator. The method can easily and as desired control the polymerization rate using any desired radical polymerization initiator.
摘要翻译：在主要使用完全混合型反应器的苯乙烯单体的连续自由基聚合中基本上不改变形成的聚合物的平均分子量的方法来控制聚合速率的方法，包括以下步骤：（a）保持聚合温度基本上恒定在t（℃）下，（b）将苯乙烯单体的进料速率设定为不存在自由基聚合引发剂时所进行的聚合反应的A倍，和（c）控制自由基聚合的量引发剂以每1升单体为（0.1 / n）×10-3至（2.0 / n）×10-3mol的范围内添加，n为存在于自由基聚合引发剂的一个分子中的自由基产生官能团数，使得聚合物浓度x满足数学表达式：x> / = 0.3t + 6x（A-1）+12，并且x保持基本上恒定，其中A表示控制后的聚合速率与在没有自由基聚合引发剂的情况下进行的聚合速率。该方法可以容易且按需要使用任何所需的自由基聚合引发剂控制聚合速率。

14. 发明授权

US5534580A Styrenic resin composition and injection- and extrusion-molded articles 失效
标题翻译：苯乙烯树脂组合物和注射和挤出成型制品
公开(公告)号：US5534580A
公开(公告)日：1996-07-09
申请号：US334330
申请日：1994-11-04
申请人： Shinichi Mitsui , Hayato Kihara , Shuji Yoshimi
发明人： Shinichi Mitsui , Hayato Kihara , Shuji Yoshimi
IPC分类号： C08K3/00 , C08L25/02 , C08L25/04 , C08K3/32
CPC分类号： C08K3/0033 , C08L25/04 , C08L2205/02 , C08L25/02
摘要： Disclosed are a styrenic resin composition comprising (a) a styrenic resin having a weight average molecular weight of 100,000 to 2,000,000 and (b) a finely divided particulate inorganic or organic substance, the inorganic substance having a refractive index of 1.5-2.0 and an average particle diameter of 0.1-20 .mu.m, and the organic substance having a refractive index of 1.5-2.0 and an average particle diameter of 0.1-20 .mu.m and not having a glass transition temperature in a temperature range of 90.degree. C. or below, said particulate inorganic or organic substance accounting for 0.002 to 1 weight % based on the styrenic resin composition, as well as an injection-molded article prepared by molding the styrenic resin composition, and an extrusion-molded article comprising the styrenic resin composition in an amount of at least 50 weight %.
摘要翻译：公开了一种苯乙烯树脂组合物，其包含（a）重均分子量为100,000至2,000,000的苯乙烯树脂和（b）细碎的无机或有机物质，所述无机物质的折射率为1.5-2.0，平均粒径为0.1-20μm，有机物折射率为1.5-2.0，平均粒径为0.1-20μm，玻璃化转变温度在90℃以下的温度范围内所述颗粒状无机或有机物质相对于苯乙烯类树脂组合物为0.002〜1重量％，以及通过将苯乙烯系树脂组合物成型而制备的注射成型品，以及含有苯乙烯系树脂组合物的挤出成型品至少50重量％。

15. 发明授权

US5459210A Processes for producing styrene copolymers 失效
标题翻译：生产苯乙烯共聚物的方法
公开(公告)号：US5459210A
公开(公告)日：1995-10-17
申请号：US197718
申请日：1994-02-17
申请人： Hayato Kihara , Satoshi Nakagawa , Shuji Yoshimi
发明人： Hayato Kihara , Satoshi Nakagawa , Shuji Yoshimi
IPC分类号： C08F2/02 , C08F2/06 , C08F2/20 , C08F212/08 , C08F4/38
CPC分类号： C08F212/08
摘要： Disclosed are a styrene copolymer having a weight average molecular weight of about 200,000 to 2,000,000, having 1 to 20 branching points in the Z-average molecular weight, and having a methyl ethyl ketone/methanol mixture-insoluble matter content of not more than 5% by weight and a methanol-soluble matter content of not more than 5% by weight; processes for preparing the styrene copolymer; a polystyrene resin composition containing the styrene copolymer; and injection-molded article prepared by injection-molding the polystyrene resin composition.
摘要翻译：公开了重均分子量为约200,000至2,000,000，Z平均分子量为1至20个支化点，并且甲基乙基酮/甲醇混合物不溶物含量不超过5％的苯乙烯共聚物，并且甲醇可溶物质含量不超过5重量％; 制备苯乙烯共聚物的方法; 含有苯乙烯共聚物的聚苯乙烯树脂组合物; 和通过注射成型聚苯乙烯树脂组合物制备的注射成型制品。

16. 发明授权

US5708112A Styrene copolymers, polystyrene compositions, and injection-molded articles 失效
标题翻译：苯乙烯共聚物，聚苯乙烯组合物和注模制品
公开(公告)号：US5708112A
公开(公告)日：1998-01-13
申请号：US419940
申请日：1995-04-11
申请人： Hayato Kihara , Satoshi Nakagawa , Shuji Yoshimi , Shinichi Mitsui
发明人： Hayato Kihara , Satoshi Nakagawa , Shuji Yoshimi , Shinichi Mitsui
IPC分类号： C08F2/02 , C08F2/06 , C08F2/20 , C08F212/08 , C08F236/20
CPC分类号： C08F212/08
摘要： Disclosed are a styrene copolymer having a weight average molecular weight of about 200,000 to 2,000,000, having 1 to 20 branching points in the Z-average molecular weight, and having a methyl ethyl ketone/methanol mixture-insoluble matter content of not more than 5% by weight and a methanol-soluble matter content of not more than 5% by weight; processes for preparing the styrene copolymer; a polystyrene resin composition containing the styrene copolymer; and injection-molded article prepared by injection-molding the polystyrene resin composition.
摘要翻译：公开了重均分子量为约200,000至2,000,000，Z平均分子量为1至20个支化点，并且甲基乙基酮/甲醇混合物不溶物含量不超过5％的苯乙烯共聚物，并且甲醇可溶物质含量不超过5重量％; 制备苯乙烯共聚物的方法; 含有苯乙烯共聚物的聚苯乙烯树脂组合物; 和通过注射成型聚苯乙烯树脂组合物制备的注射成型制品。

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