专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06646098B2 Polycarbonate resin molding material for optical use and optical disk substrate 有权
公开(公告)号：US06646098B2
公开(公告)日：2003-11-11
申请号：US10133355
申请日：2002-04-29
申请人： Yutaka Dohi
发明人： Yutaka Dohi
IPC分类号： C08G6400
CPC分类号： G11B7/2534 , C08L69/00 , Y10T428/21
摘要： The present invention relates to a polycarbonate resin molding material for optical use which contains substances (A) having a 5% weight reduction start temperature measured by thermogravimetric analysis of 400° C. or less in a total amount of 1 wt % or less and to a polycarbonate resin molding material for optical use which contains substances (A) having a 5% weight reduction start temperature measured by thermogravimetric analysis of 400° C. or less in a total amount of 1 wt % or less and a sodium compound in an amount of 1 ppm or less in terms of metal sodium. The present invention also relates to optical disk substrates formed from these molding materials. According to the present invention, use of each of the above molding materials makes possible the continuous molding of an optical disk substrate and the obtained optical disk substrate has high quality and can retain reliability for a long time as an optical disk for a high-density recording medium.

2. 发明授权

US06921784B2 Polycarbonate-based molding material and optical disk substrates 失效
标题翻译：聚碳酸酯基成型材料和光盘基材
公开(公告)号：US06921784B2
公开(公告)日：2005-07-26
申请号：US10399962
申请日：2002-07-24
申请人： Yutaka Dohi , Masaki Shiomi
发明人： Yutaka Dohi , Masaki Shiomi
IPC分类号： C08K5/101 , C08K5/103 , C08K5/51 , G11B7/253 , C08K5/523 , C08K5/526
CPC分类号： C08K5/101 , C08K5/103 , C08K5/51 , G11B7/2534 , C08L69/00
摘要： A polycarbonate resin molding material containing (A) 100 parts by weight of a polycarbonate resin and 0.001 to 1.0 part by weight of a mold release agent (B) which is composed of a fatty acid ester and a phosphorus-containing heat stabilizer and contains 0.0001 to 50 parts by weight, per 100 parts by weight of the fatty acid ester (b1), of the phosphorus-containing heat stabilizer (b2).The present invention provides a polycarbonate resin molding material excellent in mold releasability and heat resistance during molding, and a molded article therefrom. According to the present invention, particularly, there is provided a polycarbonate resin molding material excellent in mold releasability and thermal stability during molding and suitable for producing a optical disk by incorporating a small amount of a mold release agent and a heat stabilizer.
摘要翻译：一种聚碳酸酯树脂成型材料，其含有（A）100重量份的聚碳酸酯树脂和0.001〜1.0重量份的由脂肪酸酯和含磷热稳定剂构成的脱模剂（B），含有0.0001 至50重量份，相对于100重量份的含磷热稳定剂（b2）的脂肪酸酯（b1）。本发明提供一种成型时脱模性和耐热性优异的聚碳酸酯树脂成型体及其成型品。根据本发明，特别地，提供了一种成型时的脱模性和热稳定性优异的聚碳酸酯树脂成型材料，适用于通过并用少量脱模剂和热稳定剂来制造光盘。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式