| 摘要 |
<p>PCT No. PCT/EP88/00379 Sec. 371 Date Nov. 2, 1989 Sec. 102(e) Date Nov. 2, 1989 PCT Filed May 5, 1988 PCT Pub. No. WO88/08819 PCT Pub. Date Nov. 17, 1988.In a batch package 20 which includes a stack 6 of individual packages 16, the external film 17 as well as the multilayer film 2 of the individual film 16 include several layers which are bonded to each other. The core layer 3 is made of a polypropylene polymer, the external layers 4, 5 of one of the films are made of a polypropylene copolymer or terpolymer consisting of ethylene or olefins which have 4 to 10 C-atoms, the external layer 21, 22 of the second film are made of acrylic resin. During heat sealing and shrinkage, the external layers 4, 5, 21, 22 of one film are bonded to each other, respectively; however, they are not bonded to the external layers of the second film; i.e. even after the shrinkage and heat sealing the external film 17 is not joined to the individual package 16 and the multilayer film 2 enclosing the latter.</p> |
