发明申请
- 专利标题: METHOD AND APPARATUS FOR INCREASING THE INTRINSIC VISCOSITY OF A POLYCONDENSATE MELT
- 专利标题(中): 增加多金属熔体内在粘度的方法和装置
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申请号: US14427364申请日: 2013-09-12
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公开(公告)号: US20150266209A1公开(公告)日: 2015-09-24
- 发明人: Thomas Pichler , David Hehenberger , Helmut Behoun , Bernhard Pichler
- 申请人: NEXT GENERATION RECYCLINGMASCHINEN GMBH
- 申请人地址: AT Feldkirchen an der Donau
- 专利权人: Next Generation Recyclingmaschinen GmbH
- 当前专利权人: Next Generation Recyclingmaschinen GmbH
- 当前专利权人地址: AT Feldkirchen an der Donau
- 优先权: ATA997/2012 20120912
- 国际申请: PCT/AT2013/000151 WO 20130912
- 主分类号: B29B9/16
- IPC分类号: B29B9/16 ; B29B9/06
摘要:
In a method and an apparatus for increasing the intrinsic viscosity of a polycondensate melt at negative pressure, the melt enters a chamber, in which a negative pressure of less than 20 mbar prevails, through a perforated plate or a screen having openings with a diameter of less than 0.5 mm. The melt passes through this chamber in free fall in thin threads and remains in a reservoir beneath the chamber for at least one minute. The melt is moved constantly in the reservoir, and discharged from the reservoir, by a helical mixing and discharge part.