发明授权
US5639404A Method and apparatus for preparing thermoplastic sheets, films, and
plates
失效
制备热塑性片材，薄膜和板材的方法和设备
- 专利标题： Method and apparatus for preparing thermoplastic sheets, films, and plates
- 专利标题（中）： 制备热塑性片材，薄膜和板材的方法和设备
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申请号： US534581申请日： 1995-09-27
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公开(公告)号： US5639404A公开(公告)日： 1997-06-17
- 发明人: Michael Meier-Kaiser , Horst Greb
- 申请人： Michael Meier-Kaiser , Horst Greb
- 申请人地址： DEX Darmstadt
- 专利权人： Roehm GmbH Chemische Fabrik
- 当前专利权人： Roehm GmbH Chemische Fabrik
- 当前专利权人地址： DEX Darmstadt
- 优先权： DEX9415619U 19940927
- 主分类号： B29C43/24
- IPC分类号： B29C43/24 ; B29C43/44 ; B29C43/58 ; B29C47/14 ; B29C47/32 ; B29C47/92 ; B29C55/18 ; B29C69/02 ; B29L7/00
摘要：
The height of the bulge in the glazing roll gap of a supercalender in the extrusion of plates or films of a thermoplastic material smoothed on both sides may be controlled by measuring the location of the edges of the plastic sheet by means of measuring sensors and regulating the speed of the roll or the rate of extrusion of the polymer melt based on the width of the sheet so that the height of the bulge is always kept within tight tolerances.
公开/授权文献
- US4587463A Absorbance monitor 公开/授权日：1986-05-06