초록 ▼

This invention relates to paperboard laminates for pharmaceutical blister packaging. Such structures of this type, generally, employ a hot melt adhesive and calcium carbonate (CaCO.sub.3) blend which is capable of sealing to polytrichlorofluoroethylene (Aclar.RTM.). Aclar.RTM. film is commonly used

This invention relates to paperboard laminates for pharmaceutical blister packaging. Such structures of this type, generally, employ a hot melt adhesive and calcium carbonate (CaCO.sub.3) blend which is capable of sealing to polytrichlorofluoroethylene (Aclar.RTM.). Aclar.RTM. film is commonly used for high moisture barrier packaging in pharmaceutical applications.

대표청구항 ▼

[ What is claimed is:] [1.] A blister pack substrate constructed from a laminate consisting of:a paperboard layer having first and second sides;a separately extruded layer of a polyolefin having first and second sides such that said first side of said polyolefin layer is permanently bound to said se

[ What is claimed is:] [1.] A blister pack substrate constructed from a laminate consisting of:a paperboard layer having first and second sides;a separately extruded layer of a polyolefin having first and second sides such that said first side of said polyolefin layer is permanently bound to said second side of said paperboard layer;a separately extruded layer of a blend of a blister pack adhesive and a cutting/blocking improvement agent permanently bound to said second side of said polyolefin layer, wherein said blister pack adhesive consists of ethylene vinyl acetate and said cutting/blocking improvement agent consists of calcium carbonate; anda clay coating located on said first side of said paperboard layer for providing good printability.