B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/72.18
B32B 3/06 (2006.01) B29C 65/00 (2006.01) B29C 65/40 (2006.01) B65B 51/02 (2006.01) C08J 5/12 (2006.01) B29C 53/36 (2006.01) B29C 65/50 (2006.01)
Patent
CA 1200750
ABSTRACT The invention relates to a method for the joining together of laminated material comprising layers of orientation-stretched polyester covered with glycol-modified polyester , a strand of molten glycol- modified polyester being applied to the laminated material along the joining area and the laminated material being pressed together whilst it is cooled. The laminated material is joined together in that heat from the molten strand is transferred to the pressed-on layers of the laminate , the surface portions of the layers being made to melt at the same time as the strand is cooled.
419898
Marks & Clerk
Tetra Pak Developpement Sa
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