发明授权
US5223350A Mold material for molding of an optical part and process for producing
the same
失效
用于模制光学部件的模具材料及其生产方法
- 专利标题： Mold material for molding of an optical part and process for producing the same
- 专利标题（中）： 用于模制光学部件的模具材料及其生产方法
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申请号： US474776申请日： 1990-03-15
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公开(公告)号： US5223350A公开(公告)日： 1993-06-29
- 发明人: Masaki Kobayashi , Tomoyuki Oshita , Hiroshi Kijima
- 申请人： Masaki Kobayashi , Tomoyuki Oshita , Hiroshi Kijima
- 申请人地址： JPX Kawasaki
- 专利权人： Toshiba Tungaloy Co., Ltd.
- 当前专利权人： Toshiba Tungaloy Co., Ltd.
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX63-176535 19880715; JPX1-148160 19890609; JPX1-141387 19890613
- 主分类号： C03B11/08
- IPC分类号： C03B11/08
摘要：
There are disclosed a mold material for molding of an optical part, composed of at least the molding surface of a mold for molding, which comprises a sintered body or a coated layer composed mainly of at least one chromium compound selected from chromium oxide, chromium oxycarbide, chromium oxynitride and chromium oxycarbonitride and a process for producing the same.When an optical part is molded by use of the mold of the present invention, the optical part after molding can be easily taken out from the mold, and the mold has a long lifetime, and also the optical part obtained has excellent surface precision.
公开/授权文献
- US4474680A Foam generating apparatus and method 公开/授权日：1984-10-02
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