发明授权
US5372867A Polyester film for laminated metal sheet drawing and processing
containing solid lubricant and having specified protrusion rate
失效
用于层压金属板拉伸和加工的聚酯膜含有固体润滑剂并具有特定的突出率
- 专利标题： Polyester film for laminated metal sheet drawing and processing containing solid lubricant and having specified protrusion rate
- 专利标题（中）： 用于层压金属板拉伸和加工的聚酯膜含有固体润滑剂并具有特定的突出率
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申请号： US756304申请日： 1991-09-06
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公开(公告)号： US5372867A公开(公告)日： 1994-12-13
- 发明人: Kinji Hasegawa , Tadashi Ono , Takeo Asai , Yoji Murakami
- 申请人： Kinji Hasegawa , Tadashi Ono , Takeo Asai , Yoji Murakami
- 申请人地址： JPX
- 专利权人： Teijin Limited
- 当前专利权人： Teijin Limited
- 当前专利权人地址： JPX
- 优先权： JPX2-234395 19900906; JPX3-083018 19910325
- 主分类号： B29C55/00
- IPC分类号： B29C55/00 ; B29D7/01 ; B32B15/08 ; C08J5/18 ; B32B3/00
摘要：
A polyester film for metal sheet lamination processing which comprises a co-polyester containing a lubricant having an average particle diameter of 2.5 .mu.m or less and the co-polyester having a melting point of 210.degree. to 245.degree. C.; and wherein the refractive index in the direction of film thickness is 1.505 to 1.550, the refractive index in the direction of the film plane is 1.61 to 1.66 about all directions, subpeak by DSC is 150.degree. to 205.degree. C., and optionally, protrusions on the film surface satisfy the formula0.1.ltoreq.Nd/N.ltoreq.0.5wherein N is the number of all the protrusions on the film surface and Nd is the number of the protrusions each containing the lubricant as its nucleus and having a sunk hollow around it.
公开/授权文献
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