METHOD OF PRODUCING MULTILAYER LAMINAR PLASTIC AND MULTILAYER LAMINAR PLASTIC Russian patent published in 2011 - IPC B29C47/00 

FIELD: process engineering.

SUBSTANCE: set of invention relates to method of producing multilayer laminar plastic and to multilayer laminar plastic. Proposed multilayer laminar plastic is intended for tube-like packages with oriented film and one barrier layer. Proposed method comprises preparing two outer films to be heat sealed. Note here that, at least, one outer film represents an oriented outer film. Then, at least, one three-layer extrudate with barrier extrusion binder layer is arranged between two outer films. Note here that extrusion binder layer with barrier is constricted by two outer films, each being directly jointed by lamination to appropriate outer film.

EFFECT: thin multilayer laminar plastic with one barrier layer that features improved physical and chemical properties.

26 cl, 1 dwg, 6 tbl