公开(公告)号：US20160159001A1

公开(公告)日：2016-06-09

申请号：US14906938

申请日：2014-07-17

Applicant: BASF SE

Inventor： Dietrich SCHERZER ,  Tim DIEHLMANN ,  Franz-Josef DIETZEN ,  Carsten SANDNER ,  Herbert SCHALL

IPC: B29C65/14 ,  B29C65/00

CPC classification number: B29C65/1467 ,  B29C65/1412 ,  B29C65/1425 ,  B29C65/1432 ,  B29C65/1483 ,  B29C65/7847 ,  B29C65/8215 ,  B29C66/1122 ,  B29C66/45 ,  B29C66/71 ,  B29C66/727 ,  B29C66/73117 ,  B29C66/7313 ,  B29C66/73161 ,  B29C66/735 ,  B29C66/7352 ,  B29C66/73772 ,  B29C66/73774 ,  B29C66/73921 ,  B29C66/919 ,  B29C66/91933 ,  B29C66/91943 ,  B29C66/939 ,  B29C66/949 ,  B29K2025/06 ,  B29K2105/0026 ,  B29K2025/08 ,  B29K2055/02

Abstract: The present invention relates to a process for the production of at least two-layer thermoplastic foam sheets via thermal welding of at least two thinner thermoplastic foam sheets. In the process of the invention, at least two heating elements are conducted on mutually offset planes between the surfaces to be welded of the thinner thermoplastic foam sheets, and the foam sheets here do not touch the heating elements. The number of layers of the thermoplastic foam sheet is per se a result of the number of thinner thermoplastic foam sheets that are thermally welded to one another. If by way of example three thinner thermoplastic foam sheets are thermally welded to one another, a three-layer thermoplastic foam sheet is per se obtained, and if there are four thinner thermoplastic foam sheets the result is accordingly per se a four-layer thermoplastic foam sheet.

Abstract translation: 本发明涉及通过至少两种较薄的热塑性泡沫板的热焊接生产至少两层热塑性泡沫板的方法。 在本发明的方法中，至少两个加热元件在较薄的热塑性泡沫板的被焊接表面之间的相互平移的平面上进行，并且这里的泡沫片不接触加热元件。 热塑性泡沫板的层数本身就是彼此热焊接的较薄的热塑性泡沫板的数量的结果。 如果举例说三个较薄的热塑性泡沫片彼此热焊接，则本身就获得了三层热塑性泡沫板，如果有四个较薄的热塑性泡沫板，结果本身就是四层热塑性泡沫 片。