公开(公告)号：US06288205B1

公开(公告)日：2001-09-11

申请号：US09570576

申请日：2000-05-12

申请人： Masaaki Miyamoto ,  Motonori Ueda ,  Kiyoji Kuma ,  Ryuji Uchimura ,  Yoshitaka Shiraishi ,  Toshimitsu Inoue

发明人： Masaaki Miyamoto ,  Motonori Ueda ,  Kiyoji Kuma ,  Ryuji Uchimura ,  Yoshitaka Shiraishi ,  Toshimitsu Inoue

IPC分类号： C08G6400

CPC分类号： C08G64/14 ,  G11B7/2534

摘要： A polycarbonate resin having an improved hue is provided, which is suitable for use as a substrate for transfer type optical recording media such as optical disks. The polycarbonate resin is one obtained by reacting starting materials comprising a dihydric phenol, a carbonate material, and a chain terminator comprising a p-(long chain)-substituted phenol (hereinafter referred to as a para isomer), characterized in that the amount of an o-(long chain)-substituted phenol (hereinafter referred to as an ortho isomer) contained as an impurity in the chain terminator used satisfies the following relationship: ( ortho ⁢   ⁢ isomer ⁢   ⁢ amount ) ( para ⁢   ⁢ isomer ⁢   ⁢ amount ) + ( ortho ⁢   ⁢ isomer ⁢   ⁢ amount ) × 10 6 ≤ 10 ( 0.31 × ( number ⁢   ⁢ of ⁢   ⁢ C ' ⁢ s ) + 0.8 ) ( i ) (wherein “number of C's” represents the number of carbon atoms in the substituent organic group of the substituted phenols).

摘要翻译： 提供了具有改善的色调的聚碳酸酯树脂，其适合用作光盘等转印型光学记录介质的基材。聚碳酸酯树脂是通过使包含二元酚，碳酸酯材料和 包括对 - （长链）取代的苯酚（以下称为对位异构体）的链终止剂，其特征在于，以（ 使用的链终止剂中的杂质满足以下关系：（其中“C数”表示取代酚的取代基有机基团中的碳原子数）。

公开(公告)号：US06294641B1

公开(公告)日：2001-09-25

申请号：US09381278

申请日：1999-09-20

申请人： Masaaki Miyamoto ,  Motonori Ueda ,  Kiyoji Kuma ,  Ryuji Uchimura ,  Yoshitaka Shiraishi

发明人： Masaaki Miyamoto ,  Motonori Ueda ,  Kiyoji Kuma ,  Ryuji Uchimura ,  Yoshitaka Shiraishi

IPC分类号： C08G6400

CPC分类号： C08G64/14 ,  G11B7/2534

摘要： A polycarbonate resin having an improved hue is provided, which is suitable for use as a substrate for transfer type optical recording media such as optical disks. The polycarbonate resin is one obtained by reacting starting materials comprising a dihydric phenol, a carbonate material, and a chain terminator comprising a p-(long chain)-substituted phenol (hereinafter referred to as a para isomer), characterized in that the amount of an o-(long chain)-substituted phenol (hereinafter referred to as an ortho isomer) contained as an impurity in the chain terminator used satisfies the following relationship: ( ortho ⁢   ⁢ isomer ⁢   ⁢ amount ) ( para ⁢   ⁢ isomer ⁢   ⁢ amount ) + ( ortho ⁢   ⁢ isomer ⁢   ⁢ amount ) × 10 6 ≤ 10 ( 0.31 × ( number ⁢   ⁢ of ⁢   ⁢ C ' ⁢ s ) + 0.8 ) ( i ) (wherein “number of C's” represents the number of carbon atoms in the substituent organic group of the substituted phenols).

摘要翻译： 提供了具有改善的色调的聚碳酸酯树脂，其适合用作光盘等转印型光学记录介质的基材。聚碳酸酯树脂是通过使包含二元酚，碳酸酯材料和 包括对 - （长链）取代的苯酚（以下称为对位异构体）的链终止剂，其特征在于，以（ 使用的链终止剂中的杂质满足以下关系：（其中“C数”表示取代酚的取代基有机基团中的碳原子数）。

公开(公告)号：US06875491B2

公开(公告)日：2005-04-05

申请号：US10274893

申请日：2002-10-22

申请人： Masaaki Miyamoto ,  Takao Tayama ,  Ryuji Uchimura ,  Toshimitsu Inoue ,  Shigeo Higashi ,  Masaya Ueda

发明人： Masaaki Miyamoto ,  Takao Tayama ,  Ryuji Uchimura ,  Toshimitsu Inoue ,  Shigeo Higashi ,  Masaya Ueda

IPC分类号： C08K5/109 ,  C08L67/00 ,  C08L69/00 ,  C08L75/00 ,  C08L77/00 ,  G11B7/2534 ,  G11B7/258 ,  G11B7/259 ,  G11B7/2595 ,  G11B7/26

CPC分类号： G11B7/26 ,  C08K5/109 ,  C08L67/00 ,  C08L69/00 ,  C08L75/00 ,  C08L77/00 ,  G11B7/2534 ,  G11B7/259 ,  G11B7/2595 ,  Y10T428/31507 ,  C08L2666/14

摘要： A polycarbonate composition excellent in both antistatic property and coloring matter coatability containing (a) a polycarbonate obtained by an ester exchange process, and (b) a compound having a molecular weight of from 300 to 8,000 and having any of ester bond, carbonate bond, amide bond and urethane bond in its molecule and an aromatic hydrocarbon group substituted by at least one alkyl group at the molecular end thereof, a write once read many optical disc substrate and a write once read many optical disc using the same and a process for the production of a write once read many optical disc are described.

摘要翻译： 包含（a）通过酯交换法得到的聚碳酸酯的抗静电性和着色性涂布性均优异的聚碳酸酯组合物，和（b）分子量为300〜8,000，具有酯键，碳酸酯键， 酰胺键和氨基甲酸酯键，以及在其分子末端被至少一个烷基取代的芳香族烃基，一次写入许多光盘基片和一次写入多次的使用该光盘的多个光盘，以及用于 描述了一次读取许多光盘的生产。