发明授权
US5417896A Preparation of sheet-like polyethylene terephthalate materials having
little surface roughness
失效
制备表面粗糙度小的片状聚对苯二甲酸乙二醇酯材料
- 专利标题： Preparation of sheet-like polyethylene terephthalate materials having little surface roughness
- 专利标题（中）： 制备表面粗糙度小的片状聚对苯二甲酸乙二醇酯材料
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申请号： US99139申请日： 1993-07-29
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公开(公告)号： US5417896A公开(公告)日： 1995-05-23
- 发明人: Gerd Fischer , Alfred Hagemeyer , Hartmut Hibst , Hans J. Richter , Hans-Peter Schildberg , Sylvain Lazare , Matthias Bolle
- 申请人： Gerd Fischer , Alfred Hagemeyer , Hartmut Hibst , Hans J. Richter , Hans-Peter Schildberg , Sylvain Lazare , Matthias Bolle
- 申请人地址： DEX Mannheim
- 专利权人： BASF Magnetics GmbH
- 当前专利权人： BASF Magnetics GmbH
- 当前专利权人地址： DEX Mannheim
- 优先权： DEX4225554.6 19920803
- 主分类号： C08J7/00
- IPC分类号： C08J7/00 ; B23K26/00 ; B29C35/08 ; B29C59/16 ; C08G63/88 ; C08J5/18 ; G11B5/73 ; G11B5/84 ; H05K3/38 ; C08J3/28
摘要：
Sheet-like PET materials having slight surface roughness consisting of fine dot patterns in the submicron range are produced by double successive exposure of the surfaces to polarized UV light produced by a pulsed excimer laser and having planes of polarization arranged at an angle of from 20.degree. to 90.degree. relative to one another, and the PET films treated in this manner are used as a substrate for thin ferromagnetic metal layers.
公开/授权文献
- USD419970S Computer 公开/授权日：2000-02-01