A multi-layer blown polymer film comprising a core layer (CL) and at least one sealing layer (SL), said sealing layer(s) (SL) comprise(s) a propylene copolymer composition (P) having a comonomer content in the range of 3.0 to 8.0 wt.-%, the N comonomers are C.sub.5 to C.sub.12 -olefins, said propylene copolymer composition (P) comprises a polypropylene (A) and a polypropylene (B) in the weight ratio [(A)/(B)] of 20/80 to 80/20, wherein said polypropylene (A) has a comonomer content of equal or below 4.0 wt.-%, the comonomers are C.sub.5 to C.sub.12 -olefins, and said propylene copolymer (B) has a comonomer content of 4.0 to 20.0 wt.-%, the comonomers are C.sub.5 to C.sub.12 -olefins.

A heat-sealable polymer-based multilayer film having a low sealing initiation temperature, good haze, and low gloss for packaging applications. The film comprises a seal interlayer formed from a blend having a propylene-butene copolymer and a skin layer applied over the seal interlayer, with the seal interlayer being between the skin layer and the core layer.

Composite film structures for packaging use. The composite film structures have easy open, clean peel and hermetic seal characteristics stemming from good caulkability characteristics when a region of the composite film structures are folded over and sealed to form a seal on a bag, pouch or package. The composite film structure includes a base film which includes a biaxially-oriented film and a vacuum-deposited metal layer and a heat-sealant structure comprising a low density polyethylene and a linear low density polyethylene. The metal layer is between the biaxially-oriented film and the heat-sealant structure. The heat-sealant structure thickness is from about 50 to about 100 gauge, the adhesion strength between the biaxially-oriented film and the metal layer is less than about 800 g/in, and the seal strength when a region of the composite film structure is folded onto a composite film structure region is from about 500 to about 1500 g/in.

Embodiments disclosed herein provide for multi-layered assemblies comprising a carrier having opposed sides; a heat sealable layer disposed on at least a portion of one of said sides of the carrier, said heat sealable layer comprising a partially salt neutralized ionomer; and a polymeric film comprising polyurethane and having opposed sides, wherein one of said sides of the polymeric film in at least in partial contact with said heat sealable layer, methods of making the same as well as other variations.

A multi-layer polymer film comprising a core layer and a sealing layer, said sealing layer comprises a propylene copolymer composition, said propylene copolymer compositionhas a comonomer content in the range of 3.0 to 8.0 wt.-%, the comonomers are C.sub.5 to C.sub.12-olefins, comprises a polypropylene (A) and a polypropylene (B) in the weight ratio [(A)/(B)] of 20/80 to 80/20, whereinsaid polypropylene (A) has a comonomer content of equal or below 4.0 wt.-%, the comonomers are C.sub.5 to C.sub.12-olefins, andsaid propylene copolymer (B) has a comonomer content of 4.0 to 20.0 wt.-%, the comonomers are C.sub.5 to C.sub.12-olefins.

A multi-layer polymer film comprising a core layer and a sealing layer, said sealing layer comprises a propylene copolymer composition, said propylene copolymer composition has a comonomer content in the range of 3.0 to 8.0 wt.-%, the comonomers are C.sub.5 to C.sub.12 -olefins, comprises a polypropylene (A) and a polypropylene (B) in the weight ratio [(A)/(B)] of 20/80 to 80/20,
wherein said polypropylene (A) has a comonomer content of equal or below 4.0 wt.-%, the comonomers are C.sub.5 to C.sub.12 -olefins, and said propylene copolymer (B) has a comonomer content of 4.0 to 20.0 wt.-%, the comonomers are C.sub.5 to C.sub.12 -olefins.

The present invention relates to a hot-melt pressure-sensitive adhesive (HMPSA) composition. The composition includes: a) 25 to 50% of a styrene block copolymer chosen from the group comprising SIS, SIBS, SEBS and SEPS block copolymers; b) 35 to 75% of a compatible tackifying resin having a softening temperature of between 80 and 150 C. and an acid number of less than 20; and c) 0.5 to 20% of one or more carboxylic acids, the hydrocarbon chain of which includes 6 to 22 carbon atoms. The present invention also relates to a multilayer system including an HMPSA layer, a printable support layer, and an adjacent protective layer. Further, the present invention also includes a corresponding self-adhesive label and process for recycling a labeled article which entails debonding of the label by immersing the article in a hot basic aqueous solution.

The present invention provides and a plastic container and multilayered films, which comprises a heat-sealable seal layer, a cyclic polyolefin layer, and an outermost layer, wherein the seal layer comprises polypropylene, the cyclic polyolefin layer comprises a cyclic polyolefin polymer or a cyclic polyolefin copolymer, and the outermost layer comprises a layer containing polypropylene, and which further comprises a resin composition layer comprises a blended product of a propylene polymer and a styrene elastomer. The plastic container of the present invention can suppresses a reduction in the medicament content of a liquid-state medicament and is excellent in terms of shock resistance, handling ability during the filling of the container with the medicament, and the moldability and transparency of the container.

The present invention provides a multilayer heat shrinkable film incorporating an oxygen barrier material and layer containing a styrene polymer or blend of styrene polymers, where the shrinkage of the film in at least one of MD, TD is at least 30% at 90 C. The invention is further directed to a method of manufacturing a bag from said multilayer heat shrinkable film.

A double-sided adhesive tape having a first outer impact-adhesive side and a second outer side that can be heat activated, comprising an at least two-layer product structure comprising the layers A and B. Layer A is an impact-adhesive layer chemically cross-linked by means of thermal initiation or an impact-adhesive carrier layer chemically cross-linked by means of thermal initiation. Layer B is a layer on the basis of a thermoplastic plastic. Layer A and layer B are in direct contact with each other, and the surface of layer B that is in direct contact with layer A has been corona- or plasma-pretreated. The double-sided adhesive tape is characterized in that the corona or plasma pretreatment is performed in an atmosphere comprising nitrogen, carbon dioxide, or a noble gas or a mixture of at least two of said gases.