公开(公告)号：EP1413559A1

公开(公告)日：2004-04-28

申请号：EP02741357.4

申请日：2002-06-27

申请人： M. Watanabe & Co., Ltd. ,  ASAHI DENKA KOGYO KABUSHIKI KAISHA

发明人： KUSUHARA, Masakio M. WATANABE & CO., LTD. ,  WATANABE, Hiroyuki M. WATANABE & CO., LTD. ,  UEHARA, Hirofumi M. WATANABE & CO., LTD. ,  SANPEI, Keiko M. WATANABE & CO., LTD. ,  KURITA, Naoyasu ASAHI DENKA KOGYO KABUSHIKI KAISHA ,  TADA, Shuichi ASAHI DENKA KOGYO KABUSHIKI KAISHA ,  OMI, Jinichi ASAHI DENKA KOGYO KABUSHIKI KAISHA ,  TAKAHASHI, Makio ASAHI DENKA KOGYO KABUSHIKI K. ,  MORITA, Hiroshi ASAHI DENKA KOGYO KABUSHIKI KAISHA

IPC分类号： C03C3/06

CPC分类号： C03B19/1065 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/23 ,  C03C1/026 ,  C03C3/06 ,  C03C2201/02

摘要： High purity synthetic quartz glass particles are derived from alkali metal silicate and have a total amount of metal impurities content of at least 1 µg/g and, in particular, have oxygen-deficient defects. The high-purity synthetic quartz glass particles having high viscosity similar to natural quartz and high-purity similar to known synthetic quartz can be provided at a low cost.

摘要翻译： 高纯度合成石英玻璃颗粒来自总金属杂质量为至多1微克/克的碱金属硅酸盐。