Young Cheol Yoo;Jeong Won Seo;Hyung Joon Lim;Hyung Sup Lim;Sang Heon Kang
发明人:
Hyung Sup Lim,Hyung Joon Lim,Young Cheol Yoo,Sang Heon Kang,Jeong Won Seo
申请号：
US12541318
公开号：
US08431627B2
申请日:
2009.08.14
申请国别(地区):
US
年份:
2013
代理人:
摘要：
The present invention provides a composition for crown material including resin and a fine spherized composite glass powder. The fine composite glass powder of the present invention for such a configuration has superior qualities with regard to both sintering and optical characteristics, and can be used as a filler for crown material.
