发明授权
- 专利标题: Process of cooling a heated polyethylene terephthalate film
- 专利标题(中): 冷却加热的聚对苯二甲酸乙二醇酯膜
-
申请号: US535584申请日: 1990-06-11
-
公开(公告)号: US5028691A公开(公告)日: 1991-07-02
- 发明人: Gery Vancoppenolle , Jan K. De Keyzer , Walter J. Rens
- 申请人: Gery Vancoppenolle , Jan K. De Keyzer , Walter J. Rens
- 申请人地址: BEX Mortsel
- 专利权人: Agfa Gevaert, N.V.
- 当前专利权人: Agfa Gevaert, N.V.
- 当前专利权人地址: BEX Mortsel
- 优先权: EPX89201499.4 19890612
- 主分类号: B29C35/08
- IPC分类号: B29C35/08 ; B29C35/16 ; B29C37/00 ; B29C55/00 ; B29C55/06 ; B29C71/02 ; B29K67/00 ; B29L7/00 ; F26B5/14 ; F26B13/28
摘要:
A process of cooling a heated polyethylene terephthalate film by applying cooling liquid to both surfaces of the heated film and, after the temperature of the film has decreased sufficiently, removing the cooling liquid from the film, wherein the cooling liquid has a pH value between 6 and 3.
公开/授权文献
- US5949470A Roller unit and imaging apparatus using the same 公开/授权日:1999-09-07
信息查询
IPC分类: