Process for manufacturing moulded plastomeric parts

摘要

Preparation of molded articles having filling materials completely surrounded by covering materials (a), comprises supplying two films of (a) containing at least a thermoplastic polymer; and welding the obtained films at a temperature below the liquid fusion temperature of the covering material under increased mechanical load. Preparation of molded articles having filling materials completely surrounded by covering materials (a), comprises supplying at least two films of (a) containing at least a thermoplastic polymer, where the material is in viscous structure and a cross-over point between the storage module and the wastage module exhibits a frequency spectrum of 0.001-100000 s -1>, measured in an area above the glass temperature and 1-100[deg]C below the liquid-fusion temperature of the material; and welding the obtained films at a temperature below the liquid fusion temperature of the covering material under increased mechanical load. Independent claims are also included for: (1) a composition for the preparation of molded articles (preferably soft capsules) comprising (a); and (2) molded articles (preferably soft capsules) with blunt welding seam comprising (a), where the material excludes gelatin, thermoplastic starch or carrageenan.