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1. 发明授权

US4631334A Optical articles of branched polycarbonate resin 失效
标题翻译：支链聚碳酸酯树脂的光学制品
公开(公告)号：US4631334A
公开(公告)日：1986-12-23
申请号：US721604
申请日：1985-04-10
申请人： Mituhiko Masumoto , Shigeo Yanada , Toshiaki Izumida , Kazuyuki Akahori
发明人： Mituhiko Masumoto , Shigeo Yanada , Toshiaki Izumida , Kazuyuki Akahori
IPC分类号： C08G64/04 , C08G64/14 , C08L69/00 , G11B7/2534 , C08G63/62
CPC分类号： G11B7/2534 , C08G64/04 , C08G64/14 , C08L69/00
摘要： A transparent optical article is disclosed, which is produced by molding a branched polycarbonate resin having a viscosity average molecular weight of from 13,000 to 20,000 as prepared from at least one dihydric phenol compound in the presence of a polyfunctional organic compound having at least two phenolic hydroxyl groups as a branching agent in an amount of from 0.02 to 3 mol % based on the total amount of the dihydric phenol compound. The transparent molded optical article includes digital audio discs, video discs, memory discs and lenses used in the optical reading system. The optical article is greatly reduced in double refraction and has a high mechanical strength.
摘要翻译：公开了一种透明光学制品，其通过在具有至少两个酚羟基的多官能有机化合物的存在下，通过模制由至少一种二元酚化合物制备的粘均分子量为13,000至20,000的支化聚碳酸酯树脂基团的二元酚化合物的总量为0.02〜3摩尔％的支化剂。透明模制光学制品包括在光学读取系统中使用的数字音频盘，视频盘，存储盘和透镜。光学制品在双折射下大大降低，机械强度高。

2. 发明授权

US4695620A Copolycarbonate resin from branched chain alkylene bis phenol 失效
标题翻译：来自支链亚烷基双酚的共聚碳酸酯树脂
公开(公告)号：US4695620A
公开(公告)日：1987-09-22
申请号：US853062
申请日：1986-04-17
申请人： Mituhiko Masumoto , Shigeo Yanada , Tadami Kinugawa
发明人： Mituhiko Masumoto , Shigeo Yanada , Tadami Kinugawa
IPC分类号： C08G63/00 , C08G64/00 , C08G64/04 , C08G64/08 , C08G64/20 , C08G64/22 , C08G63/62
CPC分类号： C08G64/04
摘要： A polycarbonate resin having an improved flexibility, flowability and heat resistance, and a process for producing such polycarbonate resins are disclosed. The polycarbonate resin of this invention is particularly useful as optical articles and other precision molding materials and is produced by a solution polymerization method using a bisphenol compound and a substituted alkylenebisphenol compound.
摘要翻译：公开了具有改进的柔性，流动性和耐热性的聚碳酸酯树脂，以及制造这种聚碳酸酯树脂的方法。本发明的聚碳酸酯树脂特别可用作光学制品和其它精密成型材料，并且通过使用双酚化合物和取代的亚烷基双酚化合物的溶液聚合法制备。

3. 发明授权

US4395534A Process for producing aromatic polyester carbonate resin 失效
标题翻译：制备芳香族聚酯碳酸酯树脂的方法
公开(公告)号：US4395534A
公开(公告)日：1983-07-26
申请号：US322244
申请日：1981-11-17
申请人： Senzo Shimizu , Isao Nomura , Masahiro Harada , Motohachi Usui , Susumu Taniyama , Shigeo Yanada
发明人： Senzo Shimizu , Isao Nomura , Masahiro Harada , Motohachi Usui , Susumu Taniyama , Shigeo Yanada
IPC分类号： C08G63/64
CPC分类号： C08G63/64
摘要： A process for producing an aromatic polyester carbonate resin in which the molar ratio of the dihydric phenolic compound residue to aromatic dicarboxylic acid residue to carbonate bond is in the range of 2:0.5:1.5-2:1.4:0.6 and these constituent components form an alternating configuration of high regularity, said process comprising a first step wherein in producing a hydroxyl-terminated aromatic oligocarbonate by reacting a dihydric phenolic compound with a halogenated carbonyl compound in a reaction medium consisting of water and a water-immiscible solvent in the presence of a basic inorganic compound, the reaction is carried out by using the basic inorganic compound in an amount of 0.6-1.6 moles per mole of the dihydric phenolic compound and the halogenated carbonyl compound in an amount of 0.3-0.8 mole per mole of the dihydric phenolic compound to form a reaction product mixture consisting predominantly of a phenolic hydroxyl-terminated oligocarbonate of a degree of polymerization of 1-3, and a second step in which an esterification reaction is carried out by reacting the reaction product mixture obtained in the first step with an aromatic dicarboxylic acid dichloride in the presence of a basic inorganic compound in an amount at least sufficient to neutralize the free phenolic hydroxyl groups that remain in the reaction product mixture.
摘要翻译：一种芳族聚酯碳酸酯树脂的制造方法，其中二羟基酚类化合物残基与芳族二羧酸残基与碳酸酯键的摩尔比在2:0.5:1.5-2:1.4:0.6的范围内，并且这些组成成分形成所述方法包括第一步骤，其中通过在由水和水不混溶溶剂组成的反应介质中在二元酚化合物与卤代羰基化合物的反应介质中反应来制备羟基封端的芳族低聚碳酸酯碱性无机化合物，通过使用每摩尔二元酚类化合物和卤代羰基化合物的0.6-1.6摩尔量的碱性无机化合物，其量为每摩尔二羟基酚化合物0.3-0.8摩尔以形成主要由聚合度为酚羟基封端的低聚碳酸酯组成的反应产物混合物为1-3，第二步是在碱性无机化合物存在下使至少足以中和的第一步获得的反应产物混合物与芳族二羧酸二氯化物反应进行酯化反应保留在反应产物混合物中的游离酚羟基。

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