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公开(公告)号:US4785053A
公开(公告)日:1988-11-15
申请号:US885566
申请日:1986-07-02
申请人: Iko Ito , Shozaburo Imai , Michihisa Isobe
发明人: Iko Ito , Shozaburo Imai , Michihisa Isobe
IPC分类号: C08F212/00 , C08F212/08 , C08F220/00 , C08F220/10 , C08F220/14 , C08F265/06 , C08G63/00 , C08G64/00 , C08L23/00 , C08L33/00 , C08L33/02 , C08L51/00 , C08L51/02 , C08L67/00 , C08L69/00 , C08L77/00 , C08L101/00 , G02B1/04 , G11B7/24 , G11B7/253
CPC分类号: G11B7/2533 , C08F265/06 , G02B1/04 , G11B7/2534 , G11B7/2535 , G11B7/2536
摘要: An optical resin material comprising at least two constituent units each having positive and negative main polarizability differences of at least 50.times.10.sup.-25 cm.sup.3 in terms of absolute values has small birefringence and good water absorbance, heat resistance and moldability.
摘要翻译: PCT No.PCT / JP85 / 00607 Sec。 371日期:1986年7月2日 102(e)日期1986年7月2日PCT提交1985年11月1日PCT公布。 公开号WO86 / 02653 日期:1986年5月9日。包含至少两个构成单元的光学树脂材料具有小的双折射和良好的吸水率,耐热性和成型性,每个构成单元的绝对值为至少50×10-25cm 3的正负极主极化率差异。
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公开(公告)号:US5135791A
公开(公告)日:1992-08-04
申请号:US616761
申请日:1990-11-20
IPC分类号: C08L71/12 , G02B1/04 , G11B5/73 , G11B7/253 , G11B11/105
CPC分类号: G11B5/7315 , C08L71/123 , G02B1/04 , G11B11/10586 , G11B7/253 , Y10S428/913 , Y10S525/905
摘要: An optical device comprising a mixture of a polymer constituted mainly of aromatic vinyl monomer units and polyphenylene ether, characterized in that the average molecular weight of the polyphenylene ether is from 0.3 to 0.7 expressed in terms of the intrinsic viscosity measured in chloroform at 25.degree. C.
摘要翻译: 一种光学装置,其特征在于,包含主要由芳香族乙烯基单体单元构成的聚合物与聚苯醚的混合物,其特征在于,所述聚苯醚的平均分子量为0.3〜0.7,以在25℃的氯仿中测定的特性粘度表示 。
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公开(公告)号:US4812345A
公开(公告)日:1989-03-14
申请号:US155109
申请日:1988-02-11
IPC分类号: C08F220/14 , C08F220/10 , G11B7/24 , G11B7/253
CPC分类号: G11B7/253 , Y10S430/146
摘要: There is disclosed herein an optical disk substrate comprising a copolymer produced by polymerizing 50 to 65% by weight of methyl methacrylate (a) units, 20 to 35% by weight of tricyclo[5.2.1.0.sup.2.6 ]deca-8-yl methacrylate (b) units, 5 to 25% by weight of cyclohexyl methacrylate (c) units and 1 to 5% by weight of acrylic ester (d) units.
摘要翻译: 这里公开了一种光盘基片,其包括通过聚合50-65重量%的甲基丙烯酸甲酯(a)单元,20-35重量%的三环[5.2.1.02.6]癸基-8-基甲基丙烯酸酯( b)单元,5至25重量%的甲基丙烯酸环己酯(c)单元和1至5重量%的丙烯酸酯(d)单元。
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公开(公告)号:US4385168A
公开(公告)日:1983-05-24
申请号:US353105
申请日:1982-03-01
CPC分类号: C08G65/44 , C08L71/123
摘要: A process for producing polyphenylene oxide which comprises contacting a phenolic monomer with oxygen in the presence of a catalyst composed of a manganese (II) salt and an ortho-hydroxyazo compound represented by the following formula: ##STR1## wherein A and B represent identical or different arylene ring having a valency of at least 2 and having an oxy group and an azo group directly linked to the ortho carbon atoms of the arylene ring and R represents hydrogen or lower alkyl group, or in the presence of said catalyst and an amine, in a polymerization solvent containing a base and thereby subjecting said phenolic monomer to an oxidative polymerization.
摘要翻译: 一种生产聚苯醚的方法,其包括在由锰(II)盐和由下式表示的邻羟基偶氮化合物组成的催化剂存在下使酚单体与氧接触:其中A和B表示相同或 不同的亚芳基环具有至少为2的化合价,并且具有氧基和与亚芳基环的邻碳原子直接连接的偶氮基,R表示氢或低级烷基,或者在所述催化剂和胺的存在下, 在含有碱的聚合溶剂中,从而使所述酚类单体进行氧化聚合。
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公开(公告)号:US6087031A
公开(公告)日:2000-07-11
申请号:US997547
申请日:1997-12-23
CPC分类号: H01M8/1072 , C08J5/20 , H01M8/1027 , H01M8/1032 , H01M8/1067 , Y02P70/56
摘要: A polymer electrolyte comprising a sulfonated polyethersulfone having an ion-exchange group equivalent weight of 870 to 5000 g/mol, which is obtainable by sulfonating a polyethersulfone having the structural unit represented by the following structural formula, ##STR1## The polymer electrolyte is cheap, easily mold-processable by virtue of soluble property in organic solvent and thermoplastic property, easily film-processable, highly water-resistant, and suitable for a fuel cell.
摘要翻译: 包含具有870〜5000g / mol的离子交换基当量的磺化聚醚砜的聚合物电解质,其可通过磺化具有由下列结构式表示的结构单元的聚醚砜获得。该聚合物电解质便宜, 由于在有机溶剂中的可溶性和热塑性能可加工,易于加工膜,高度防水,并且适用于燃料电池。
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