发明授权
US4920081A R.sub.2 O-Al.sub.2 O.sub.3 /B.sub.2 O.sub.3 -P.sub.2 O.sub.5 glasses
失效
R2O-Al2O3 / B2O3-P2O5玻璃
- 专利标题: R.sub.2 O-Al.sub.2 O.sub.3 /B.sub.2 O.sub.3 -P.sub.2 O.sub.5 glasses
- 专利标题(中): R2O-Al2O3 / B2O3-P2O5玻璃
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申请号: US258674申请日: 1988-10-17
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公开(公告)号: US4920081A公开(公告)日: 1990-04-24
- 发明人: George H. Beall , Candace J. Quinn
- 申请人: George H. Beall , Candace J. Quinn
- 申请人地址: NY Corning
- 专利权人: Corning Incorporated
- 当前专利权人: Corning Incorporated
- 当前专利权人地址: NY Corning
- 主分类号: C03C3/16
- IPC分类号: C03C3/16 ; C03C3/17 ; C03C3/19 ; C03C4/20
摘要:
This invention relates to the preparation of glasses exhibiting low transition temperatures with excellent chemical durability. The glasses consist essentially, in mole %, of:______________________________________ P.sub.2 O.sub.5 44-58 Al.sub.2 O.sub.3 + 4-10 Na.sub.2 O + Li.sub.2 O 10-45 B.sub.2 O.sub.3 Al.sub.2 O.sub.3 0-7 Na.sub.2 O 10-30 Cu.sub.2 O 0-20 B.sub.2 O.sub.3 0-10 Li.sub.2 O 0-30 Li.sub.2 O + Cu.sub.2 O 10-30 ______________________________________
公开/授权文献
- US5459572A Mirror arrangement in a focusing interferometer 公开/授权日:1995-10-17
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