Novel polyester polymers
    1.
    发明授权
    Novel polyester polymers 失效
    新型聚酯聚合物

    公开(公告)号:US4749775A

    公开(公告)日:1988-06-07

    申请号:US70553

    申请日:1987-07-07

    摘要: Polyester polymers consisting essentially of repeating units having the formula ##STR1## repeating units having the formula--O--Ar.sup.1 --CO-- [II],repeating units having the formula--O--Ar.sup.2 --O-- [III],and repeating units having the formula ##STR2## wherein Ar.sup.1 is selected from ##STR3## Ar.sup.2 is selected from ##STR4## halogen substituted radicals of these radicals, and ##STR5## wherein X is selected from --O--, --S--, --SO.sub.2 --, --CO--, --O(CH.sub.2).sub.n O--.--CH.sub.2).sub.n, and ##STR6## wherein each n independently represents a member having a value of from 1 to 10, and each R.sup.4 is independently selected from alkyl radicals of 1 to 5 carbon atoms, andR.sup.2 and R.sup.3 are independently selected from hydrogen atom, halogen radicals, alkyl radicals of 1 to 5 carbon atoms, and phenyl radical, and R.sup.2 and R.sup.3 may be identical or different from each other, andR.sup.1 is selected from halogen radicals and alkyl radicals of 1 to 5 carbon atoms, and wherein the polyester polymer has a reduced viscosity [.eta.sp/c] of at least 0.2 dl/g as measured in p-chlorophenol at a concentration of 0.2 g/dl at 60.degree. C.Such polyester polymers are excellent in the mechanical strength and heat resistance and, therefore, are useful as various kinds of fibers, films, or engineering plastics. A process for preparing the polyester polymer and novel diimide-dicarboxylic acid to be used as a material in this process are also disclosed.

    摘要翻译: 主要由具有下式的重复单元组成的聚酯聚合物[I]具有式-O-Ar1-CO- [II]的重复单元,具有式-O-Ar2-O- [III]的重复单元,并重复 具有式[IMAGE] [IV]的单元其中Ar1选自 + TR Ar2选自这些基团的卤素取代的基团,其中 X选自-O - , - S - , - SO 2 - , - CO - , - O(CH 2)n O - , - CH 2)n和其中每个n独立地表示具有1 并且每个R 4独立地选自1至5个碳原子的烷基,并且R 2和R 3独立地选自氢原子,卤素基团,1至5个碳原子的烷基和苯基,以及R 2和R 3 可以相同或不同,并且R 1选自卤素基团和1至5个碳原子的烷基,并且其中聚酯聚合物具有降低的粘度[η] 在60℃下在对氯苯酚中以0.2g / dl的浓度测量为至少0.2dl / g。这种聚酯聚合物的机械强度和耐热性优异,因此可用作各种纤维, 电影或工程塑料。 还公开了用于制备聚酯聚合物的方法和用于该方法中的材料的新型二酰亚胺 - 二羧酸。

    Polyester carbonate containing imido groups and method of preparing the
same
    2.
    发明授权
    Polyester carbonate containing imido groups and method of preparing the same 失效
    含有亚氨基的聚酯碳酸酯及其制备方法

    公开(公告)号:US4755584A

    公开(公告)日:1988-07-05

    申请号:US900734

    申请日:1986-08-27

    CPC分类号: C08G73/16

    摘要: Disclosed is a polyester carbonate containing imido groups comprising recurring units represented by the following formula: ##STR1## and recurring units represented by the following formula:--O--Ar--O--CO-- (2)wherein Ar represents a divalent aromatic hydrocarbon group selected from the group consisting of ##STR2## with a mole fraction of the recurring units shown by the formula (1) being 0.2 to 0.8, and having a reduced viscosity [.eta.sp/C] of 0.3 dl/g or more at 60.degree. C. in a solution in which the polyester carbonate is dissolved in p-chlorophenol as a solvent at a concentration of 0.2 g/dl.Further disclosed is a process for producing the same which comprises allowing 4-carboxy-N-(3-hydroxyphenyl)-phthalimide to react with a divalent phenol represented by the following formula:HO--Ar--OH (3)wherein Ar has the same meaning as above,and diphenyl carbonate.The compound of this invention or the compound prepared according to the process of this invention has a higher mechanical strength, good moldability, solvent resistance and liquid crystal characteristic.

    摘要翻译: 公开了含有由下式表示的重复单元的亚氨基的聚酯碳酸酯:由下式表示的重复单元:-O-Ar-O-CO-(2)其中Ar表示二价芳族 选自由以下公式(1)表示的重复单元的摩尔分数为0.2至0.8的 + TR ,并且在其中将聚酯碳酸酯溶解在浓度为0.2g / dl的溶剂的对氯苯酚中的溶液中,在60℃下具有0.3dl / g或更高的比浓粘度[η]。 进一步公开的是其制备方法,其包括使4-羧基-N-(3-羟基苯基) - 邻苯二甲酰亚胺与由下式表示的二价苯酚反应:HO-Ar-OH(3)其中Ar具有相同 如上所述,和碳酸二苯酯。 本发明化合物或根据本发明方法制得的化合物具有较高的机械强度,良好的成型性,耐溶剂性和液晶特性。

    Methods for preparing magnetic powder material and magnet, process for
preparaton of resin composition and process for producing a powder
molded product
    3.
    发明授权
    Methods for preparing magnetic powder material and magnet, process for preparaton of resin composition and process for producing a powder molded product 失效
    制备磁性粉末材料和磁体的方法,树脂组合物的制备方法和制备粉末成型产品的方法

    公开(公告)号:US5350558A

    公开(公告)日:1994-09-27

    申请号:US101705

    申请日:1993-08-04

    摘要: There is disclosed a process for preparing a resin composition for powder molding, comprising 50 to 97 wt % of a metal or alloy powder and 50 to 3 wt % of a thermoplastic resin having heat resistance and crystallinity, which process comprises dissolving the thermoplastic resin having heat resistance crystallinity in a solvent and at the same time, dispersing therein at least one metal or alloy powder selected from iron, brass, nickel silver, stainless steel and aluminum, having an average particle diameter of not more than 500 .mu.m to thereby prepare a mixture. In addition, there is disclosed a process for producing a powder molded product which comprises cold compressing molding the above resin composition and then heating the molding at a temperature not less than the melting point of the thermoplastic resin. This powder molded product has excellent dimensional stability against heat, chemical resistance, and mechanical strength.

    摘要翻译: 公开了一种制备粉末成型用树脂组合物的方法,其包含50〜97重量%的金属或合金粉末和50〜3重量%的具有耐热性和结晶性的热塑性树脂,该方法包括将具有 在溶剂中的耐热结晶性,同时在其中分散平均粒径不大于500μm的至少一种选自铁,黄铜,镍银,不锈钢和铝的金属或合金粉末,由此制备 混合物。 此外,公开了一种制造粉末成型体的方法,该方法包括冷压成型上述树脂组合物,然后在不低于热塑性树脂的熔点的温度下加热成型体。 该粉末成型品具有优异的耐热尺寸稳定性,耐化学性和机械强度。

    Polycarbonate resin for optical disk substrate and optical disk substrate
    4.
    发明授权
    Polycarbonate resin for optical disk substrate and optical disk substrate 有权
    用于光盘基片和光盘基片的聚碳酸酯树脂

    公开(公告)号:US07067609B2

    公开(公告)日:2006-06-27

    申请号:US10756410

    申请日:2004-01-14

    IPC分类号: C08G64/00

    摘要: The present invention relates to a polycarbonate resin that has a viscosity average molecular weight of from 10,000 to 17,000 and has characteristic features in an iron content, a free total phenol content, a content of a releasing agent, a fraction of hydroxyl end groups, a 1H-NMR spectrum or the like. The polycarbonate resin has less defects due to flash without increase of an addition amount of a releasing agent to an unnecessary level and therefore is suitable for a material of an optical disk substrate.

    摘要翻译: 本发明涉及粘度平均分子量为10,000〜17,000的聚碳酸酯树脂,其特征在于铁含量,游离酚含量,脱模剂含量,羟基端基的分数, 1 H-NMR光谱等。 聚碳酸酯树脂由于闪光而具有较少的缺陷,而不会使脱模剂的添加量增加到不必要的水平,因此适用于光盘基材的材料。

    Polycarbonate resin for optical disk substrate and optical disk substrate
    5.
    发明授权
    Polycarbonate resin for optical disk substrate and optical disk substrate 有权
    用于光盘基片和光盘基片的聚碳酸酯树脂

    公开(公告)号:US06716510B2

    公开(公告)日:2004-04-06

    申请号:US09926828

    申请日:2001-12-27

    IPC分类号: C08L6900

    摘要: The present invention relates to a polycarbonate resin that has a viscosity average molecular weight of from 10,000 to 17,000 and has characteristic features in an iron content, a free total phenol content, a content of a releasing agent, a fraction of hydroxyl end groups, a 1H-NMR spectrum or the like. The polycarbonate resin has less defects due to flash without increase of an addition amount of a releasing agent to an unnecessary level and therefore is suitable for a material of an optical disk substrate.

    摘要翻译: 本发明涉及粘度平均分子量为10,000〜17,000的聚碳酸酯树脂,其特征在于铁含量,游离酚含量,脱模剂含量,羟基端基的分数, 1 H-NMR光谱等。 聚碳酸酯树脂由于闪光而具有较少的缺陷,而不会使脱模剂的添加量增加到不必要的水平,因此适用于光盘基材的材料。

    Methods for preparing magnetic powder material and magnet, process for
prepartion of resin composition and process for producing a powder
molded product
    6.
    发明授权
    Methods for preparing magnetic powder material and magnet, process for prepartion of resin composition and process for producing a powder molded product 失效
    制备磁性粉末材料和磁体的方法,树脂组合物的制备方法和制备粉末模制产品的方法

    公开(公告)号:US5256326A

    公开(公告)日:1993-10-26

    申请号:US702396

    申请日:1991-05-20

    摘要: There is disclosed a process for preparing a resin composition for powder molding, comprising 50 to 97 wt % of a metal or alloy powder and 50 to 3 wt % of a thermoplastic resin having heat resistance and crystallinity, which process comprises dissolving the thermoplastic resin having heat resistance crystallinity in a solvent and at the same time, dispersing therein at least one metal or alloy powder selected from iron, brass, nickel silver, stainless steel and aluminum, having an average particle diameter of not more than 500 .mu.m to thereby prepare a mixture. In addition, there is disclosed a process for producing a powder molded product which comprises cold compressing molding the above resin composition and then heating the molding at a temperature not less than the melting point of the thermoplastic resin. This powder molded product has excellent dimensional stability against heat, chemical resistance, and mechanical strength. Also, there is disclosed a process for producing a magnetic powder material wherein there is added to a mixture containing a crystalline thermoplastic resin dissolved therein and magnetic powder dispersed therein a bad solvent for the resin to effect precipitation of the resin from the solution system and the resin is adhered or coated onto the magnetic powder. Other methods for forming the magentic powder material are disclosed as a resin-bonded magnetic obtained from such magnetic powder material.

    摘要翻译: 公开了一种制备粉末成型用树脂组合物的方法,其包含50〜97重量%的金属或合金粉末和50〜3重量%的具有耐热性和结晶性的热塑性树脂,该方法包括将具有 在溶剂中的耐热结晶性,同时在其中分散平均粒径不大于500μm的至少一种选自铁,黄铜,镍银,不锈钢和铝的金属或合金粉末,由此制备 混合物。 此外,公开了一种制造粉末成型体的方法,该方法包括冷压成型上述树脂组合物,然后在不低于热塑性树脂的熔点的温度下加热成型体。 该粉末成型品具有优异的耐热尺寸稳定性,耐化学性和机械强度。 此外,公开了一种制造磁性粉末材料的方法,其中加入溶解有结晶热塑性树脂的混合物和分散有树脂的不良溶剂的磁性粉末以使溶液系统中的树脂沉淀, 树脂被粘附或涂覆在磁粉上。 公开了用于形成磁性粉末材料的其它方法作为从这种磁性粉末材料获得的树脂粘合磁体。