Abstract: The film according to the invention comprises a central layer, representing at least 30% of the total thickness of the film, composed of a mixture comprising at least 50% by weight of radical polyethylene and of ionomeric plastic, the remainder being conventional linear polyethylene, sandwiched between two outer layers composed of a mixture comprising more than 50% by weight of linear polyethylene, the remainder being radical polyethylene. Application: in the wrapping of groups of products.

Abstract: A thermally insulated sleeve is adapted to fit over a cup. The sleeve has a sidewall having an inside surface and an outer surface. The sidewall is adapted to seal the sidewall upon itself and to form a seam. A thin thermally insulating coating having a controlled thickness is supported by the sidewall. The thin thermally insulating coating is comprised of a binder and void containing particles, ranging from 0.1 microns to 200 microns in size, adapted to being restricted by the binder. A heat-activated adhesive is supported by the inside surface of the sidewall. When the sleeve is heated the heat activated adhesive bonds the sleeve to the cup.

Abstract: A fire retardant composition comprising a cured film, wherein said film is formed from a film-forming composition comprising a curable resin and a fire retardant, the fire retardant being included in an amount from about 5 to about 95 weight percent based on the weight of the cured film, and wherein when the film is adhered to a flexible substrate, the film substantially does not alter the hand of the flexible substrate.

Abstract: A multilayer sealant film for use in the medical field at least comprises as its innermost layer a first layer comprising at least one resin selected from the group consisting of linear low-density polyethylene, low-density polyethylene, polypropylene and polybutene-1, and a third layer comprising an ethylene-vinyl alcohol copolymer and laminated to the outer side of the first layer with a second layer serving as an adhesive layer and comprising a resin containing, as a main component, at least one of an amorphous polyolefin, adherent polyolefin and ethylene-vinyl acetate copolymer. The ethylene-vinyl alcohol copolymer forming the third layer functions as a barrier for preventing contaminants from migrating from outside of the third layer toward the first layer (innermost layer). Further, it is possible to improve the formability of the multilayer film since the difference in density between the resin for forming the first layer and the resin for forming the second layer is set to be 0.02 g/cm3 or less.

Abstract: A composition capable of scavenging oxygen composed of (i) a copolymer of, at least, ethylene and a strained, cyclic alkylene, preferably cyclopentene; (ii) a transition metal catalyst; (iii) preferably, a photoinitiator; and (iv) optionally, a polymeric diluent.

Abstract: A multilayer packaging film comprising: a) a copolyester heat seal layer comprising a base polymer, wherein: i) 10-60 mole % of the base polymer is derived from a terephthalic acid monomer, ii) 10-60 mole % of the base polymer is derived from an ethylene glycol monomer, and iii) 5-60 mole % of the base polymer is derived from a member of the group consisting of: A) a diacid other than terephthalic acid; B) a diol other than ethylene glycol; and C) a mixture of A) and B); b) an interface layer comprising an acrylic polymer; c) a support layer; wherein the multilayer film has a peel strength of less than 200 grams per linear inch when the heat seal layer is sealed to itself at heat sealing temperatures of above 100° C. to about 200° C.

Abstract: A method of heat sealing a heat sealable multilayer film having a first film surface which is heat sealable to itself or to other surfaces and a second film surface including particles of a cross-linked polymethyl methacrylate as an antiblock agent, the method comprising sliding the said second film surface over a heated heat sealing surface before effecting heat sealing of the film to itself or to another surface using said heated heat sealing surface.

Abstract: A polymeric adhesive tape including a first polymeric adhesive layer which is a heat activated film and a second polymeric adhesive layer which is a heat activated film is disclosed. The tape is designed for use in the fabrication of articles wherein the polymeric adhesive tape secures a first member to a support surface. A method for bonding adjacent sheets to a substrate is also disclosed. In accordance with the disclosed method, a substrate is prepared for application of a first sheet and a second sheet, a polymeric adhesive tape is positioned on the substrate at a position along which the seam between the first sheet and the second sheet will be located, the first sheet and the second sheet are laid on the substrate such that the seam between the first sheet and the second sheet lies along the polymeric adhesive tape, and the adhesive tape is heated along the seam to bond the substrate, adhesive tape, first laminate and second laminate.

Abstract: A polymeric adhesive tape including a first polymeric adhesive layer which is a heat activated film and a second polymeric adhesive layer which is a heat activated film is disclosed. The tape is designed for use in the fabrication of articles wherein the polymeric adhesive tape secures a first member to a support surface. A method for bonding adjacent sheets to a substrate is also disclosed. In accordance with the disclosed method, a substrate is prepared for application of a first sheet and a second sheet, a polymeric adhesive tape is positioned on the substrate at a position along which the seam between the first sheet and the second sheet will be located, the first sheet and the second sheet are laid on the substrate such that the seam between the first sheet and the second sheet lies along the polymeric adhesive tape, and the adhesive tape is heated along the seam to bond the substrate, adhesive tape, first laminate and second laminate.

Abstract: A water resistant, caustically removable coating and method for making the same is disclosed. The coating is utilized to make a paper label which is water resistant but can be repulped in conventional caustic bottle washing solution. The coated paper label is applied to a bottle, the bottle used and then recycled using conventional caustic bottle washing solution to remove and repulp the paper label, permitting recycling of the bottle, and if desired, making paper from the recovered pulp.

Abstract: Provided is two kind of thermal transfer sheets comprising a substrate and a white transfer layer, the white transfer layer being to be transferred onto an image-formed portion of an image-receiving sheet. In the one kind, white transfer layer includes a white ink layer containing a white pigment and/or a filler, and has a total light transmittance of 30 to 95% and a haze of 30 to 95% due to the white ink layer. In another kind, the white transfer layer includes a white ink layer and a peeling layer, the white ink layer containing a white pigment and/or a filler, the peeling layer laminated between the white ink layer and the substrate, and capable of causing a cohesive failure thereby converting into an irregular surface of a printed material through a transferring process. The present invention also provides printed materials by the using of the thermal transfer sheets described above and recording methods for producing of the printed materials.

Abstract: Disclosed is a heat-sealable adhesive label with a built-in spacer and methods of its manufacture. The adhesive label of the present invention includes a substrate having a first surface and a second surface, and an adhesive coating disposed on the first surface of the substrate. The adhesive coating includes an adhesive and a plurality of spacer particles that impart roughness to the adhesive coating. Methods of making and using a heat-sealable adhesive label also are disclosed.

Abstract: Provided is electromagnetic shielding bonding film which has an electromagnetic shielding capability, infrared blocking capability, transparency, invisibility and favorable bonding property, and an electromagnetic shielding assembly and a display device using such bonding film. The electromagnetic shielding bonding film is characterized by plastic film carrying a bonding agent layer which flows under specific conditions, and an electroconductive metallic material layer which is geometrically patterned by micro-lithography so as to have an aperture ratio of 50% or more. This electromagnetic shielding bonding film is combined with a plastic plate to obtain an electromagnetic shielding assembly. Also is provided a display device such as CRT, PDP, LCD, or EL which has the electromagnetic shielding bonding film or the electromagnetic shielding assembly on the display screen.

Abstract: A hot-melt web has a buffer adhesive layer of a thermosetting resin on a light transmissive, heat resistant resin support. The hot-melt web has the advantages of light transparency, heat resistance, weather resistance, controlled entrainment of bubbles and easy removal of bubbles during thermocompression bonding, provides a sufficient bonding force, and effectively corrects random deformations of a module sheet. The hot-melt web is suitable for use in the bonding, joining and laminating steps in the manufacture of optical discs such as DVD and flat panel displays, is easy to eliminate bubbles, and is effective for improving the quality of an associated product. A laminate using the hot-melt web and a method for preparing the laminate are also provided.

Abstract: Films prepared from metallocene polypropylene containing a low molecular weight hydrocarbon resin are shown to have certain improved properties as compared to such films prepared with such films prepared without said resin. In particular, these films have improved optical properties.

Abstract: A thermal transfer sheet for printing a printed matter having a metallic luster comprised of a substrate, a deposition anchor layer, a metal deposition layer and an adhesive layer. The deposition anchor layer, the metal deposition layer and the adhesive layer are formed in this order on one surface of the substrate. The deposition anchor layer contains a linear polymer having a glass transition temperature of not less than 130.degree. C. by an amount of not less than 40 weight % of a total weight of the deposition anchor layer to thereby preventing the metal deposition layer from clouding due to high heat of a thermal head.

Abstract: Compared to a polyester film, films made from a blend of the polyester and up to 20 percent of an ethylene-acrylate copolymer have improved tear strength and heat seal strength while maintaining acceptable gloss, clarity, and coefficient of friction. The heat seal strength of the film and the bond strength of the film to aluminum vacuum deposited on the film are improved by adding less than five percent of an ethylene-acid copolymer to the blend.

Abstract: Adhesive matrixes for use in administering drugs transdermally in which the adhesive component is a homogenous physical blend of a hydrophilic polymer adhesive and a hydrophobic polymer adhesive. The blends provide enhanced drug flux as compared to adhesive matrixes of either the hydrophobic polymer adhesive or hydrophilic polymer adhesive alone.

Abstract: Ethylene polymers having a) a Polydispersity Index of about 2 to about 4; b) a melt index, MI, and Relaxation Spectrum Index, RSI, such that (RSI)(MI.sup.0.6) is about 2.5 to about 6.5; c) a Crystallizable Chain Length Distribution Index, L.sub.w /L.sub.n, of about 1.0 to about 9; and d) a density, .rho., and a percent haze when fabricated into films such that the percent haze is less than 370.rho.-330, are provided. These ethylene polymers advantageously combine superior clarity and toughness with low extractables and enhanced processing ease.

Abstract: A process for creating a jacket for the protection of an extended object and the article produced by the process. The process includes the steps of selecting a heat-shrinkable tube having a size corresponding to the object to be protected; providing a mold body having external dimensions substantially matching dimensions of the object to be protected; placing the heat-shrinkable tube over the mold body; applying heat to the heat-shrinkable tube to cause the heat shrinkable tube to conform to the shape of the mold body; cutting the heat-shrinkable tube longitudinally to create an open sleeve with first and second lateral sides; and removing the open sleeve from the mold body. Preferably, a fastening means is provided on the lateral sides of the open sleeve to allow the sleeve to be secured tightly about the object to be protected.

Abstract: A non-blocking thermal laminating film is provided including a thermoplastic polymer base layer and a thermal laminating layer including an ethylene vinyl acetate copolymer containing 28%-40% by weight vinyl acetate units and an anti-blocking amount of an anti-blocking agent. Preferred anti-blocking agents include low molecular weight polyethylene and EVA copolymers with 10% by weight or less vinyl acetate content. The thermal lamination films are specially adapted for use on modern digitally printed substrates including those printed with glycol-based inks, 100% solids inks and siliconized printed surfaces.

Abstract: A heat-sensitive transfer medium comprises a base material and superposingly formed thereon a release layer, an intermediate layer and an ink layer in this order. The ink layer contains a colorant, a first resin capable of curing upon reaction with a curing agent, a curing agent that causes the resin to cure, and a second resin capable of inhibiting the reaction of the first resin with the curing agent, and the release layer is formed in a coating weight of from 0.005 g/m.sup.2 to 0.4 g/m.sup.2. This heat-sensitive transfer medium enables sharp color printing and also can form transferred patterns having a superior rub resistance.

Abstract: The invention is an in-mold label film comprising at least two layers with one layer being a heat seal layer for bonding the film to a polymer substrate wherein the film has a thermal conductivity of less than about 1.250.times.10.sup.-4 k-Cal/sec cm .degree. C. The invention further includes a process for in-mold labeling comprising the steps of forming a label comprising at least two layers with one layer being a heat seal layer for bonding the film to a plastic substrate wherein the film has a thermal conductivity of less than about 1.250.times.10.sup.-4 k-cal/sec cm .degree. C. inserting the label into a mold for producing the plastic substrate with a inside and outside surface thereafter forming a plastic substrate in the mold with sufficient heat wherein the outside surface of the substrate bonds with the heat seal layer of the label.

Abstract: The invention provides a heat-shrinkable multi-layer film comprising at least a thermoplastic resin layer as the outermost layer (A), a gas barrier resin layer as a core layer (B) and a sealing resin layer as the innermost layer (C), and optionally an adhesive layer between the individual layers, wherein (1) the sealing resin layer of the innermost layer (C) is a layer formed of a resin material (b) comprising a linear ethylene-1-octene copolymer (a) obtained by using a constrained geometry catalyst and having an 1-octene content not lower than 1 wt. % but lower than 20 wt. % and a density higher than 0.885 g/cm.sup.3 but not higher than 0.960 g/cm.sup.3, and (2) an intermediate layer (D1) formed of at least one resin (c) selected from the group consisting of polyamide resins, thermoplastic polyester resins and ethylene copolymer resins is provided between the outermost layer (A) and the core layer (B).

Abstract: A multilayer heat-sealable chlorine-free film of relatively low modulus, high interlaminar strength, and low noise upon flexing is provided. The film includes an odor barrier layer and at least one directly adjoining heat-sealable skin layer. The barrier layer is composed of either an aliphatic or partially aromatic polyamide resin, or a blend thereof, blended with an ionomer resin consisting essentially of a partially neutralized ethylene-methacrylic acid copolymer, and the heat-sealable skin layer or layers bonded directly to the barrier layer are composed of copolymers of ethylene and an ester-containing comonomer. High resistance to delamination of the barrier layer and skin layer(s) is achieved without tie layers therebetween. Pouches formed of such multilayer chlorine-free films are also disclosed.

Abstract: The present invention comprises a two-piece induction seal for use in creating clean, safe, and secure inner seals on containers, comprising layers of synthetic foam, absorbing synthetic polymer, an induction membrane and a heat-sensitive seal.

Abstract: A multilayer film useful for making plastic adhesive labels for glass substrates such as glass bottles. The multilayer films contain a base layer, an adhesive layer, and optionally an intermediate layer to improve interlayer bonding between the base layer and the adhesive layer. The adhesive layer comprises a heat-activated thermoplastic adhesive that is not tacky at room temperature. Films of the present invention are sufficiently non blocking at room temperature so as to not require the use of a separate release liner. The film can be utilized in conventional graphics printing operations and made into labels. Labels made from films of the present invention can be thermally adhered to glass substrates and exhibit sufficient adhesion to glass substrates to withstand washing/rinsing, filling, and pasteurization processes utilized in the bottling industry.

Abstract: A heat-activated sealing tape for manufacturing or sealing a carton or other article. The tape is composed of a paper layer, a layer formed of oriented plastic film which is adhesively laminated to the paper layer, and a heat-activatable adhesive exposed for use in adhering the paper-plastic film laminate to an object. The heat activatable adhesive is inactive at ambient temperatures. When exposed to low temperature heat sealing conditions, the adhesive is activated and enables the tape to be adhered to the article to be sealed. The sealing tape is designed for ease of handling and reduction in waste, and is adaptable for use in existing automatic and semi-automatic equipment for manufacturing or sealing cartons.

Abstract: An environmentally friendly polymer film pouch made from a polyethylene film structure for the packaging of flowable materials, for example milk, including, for example, a pouch made from a monolayer or multilayer film structure such as a two-layer or a three-layer coextruded film containing at least one layer of a blend of a linear ethylene interpolymer and a high pressure low density polyethylene as a seal layer. Also disclosed is a process for making a pouch for packaging flowable materials using a film structure of a blend of a linear ethylene interpolymer and a high pressure low density polyethylene.

Abstract: A uniaxially heat-shrinkable, biaxially oriented, multilayer film having a polypropylene-containing core layer comprising at least 70 wt. % of said multilayer film and optionally, at least one polyolefin-containing skin layer adjacent said core layer, is prepared by biaxially orienting a coextrudate and therefore orienting said coextrudate by stretching 10 to 40 % in the machine direction. The core layer contains isotactic polypropylene and a sufficient amount of syndiotactic polypropylene to inhibit uniaxial heat shrinkage at temperature below about 50.degree. C. The skin layer can be selected from the group consisting of polypropylene, ethylene-propylene copolymer, polyethylene, and ethylene-propylene-butylene terpolymer.

Abstract: A heat bond seaming tape has a base formed of a sheet of paper or a paper-like material and an overlying strip of an open mesh material. A plurality of transversely spaced, longitudinally extending beads of a hot melt thermoplastic adhesive material is placed on a top surface of the mesh for adhering the tape to the backs of adjacent carpet edges. A strip of a polyolefin such as a semi-rigid high density polyethylene material is sandwiched between the base sheet and the strip of open mesh material and extends longitudinally along the center of the strip and extends transversely across the carpet seam to prevent seam buckling. The base sheet and reinforcing strip can be extruded as an integral one piece member of the high density polyethylene prior to being joined with the mesh and hot melt adhesive.

Abstract: A multilayer heat-shrinkable film comprisesa heat-sealable layer (a);an inner layer (b) comprising a polymer selected from the group consisting of ethylene-vinyl acetate copolymers containing from 4 to 28% by weight of vinyl acetate units and with a fractional Melt Index, and ethylene-alkyl acrylate copolymers containing from 9 to 28% by weight of alkyl acrylate units and with a fractional Melt Index;an inner layer (c), face-to-face in contact with layer (b), comprising a polymer selected from the group consisting of ethylene-acrylic acid copolymers, ethylene-methacrylic acid copolymers, ethylene-vinyl acetate copolymers, ethylene-alkyl acrylate copolymers, heterogeneous ethylene-.alpha.-olefin copolymers, and homogeneous ethylene-.alpha.

Abstract: A pack of articles (2) packaged using a plastic material film (3) having a preferred direction of tearing (D), a plurality of articles (2) being disposed side by side in one or more superposed layers, the film being folded over along a winding direction (E) around the articles which it retains, opening means being provided on the film to facilitate the tearing thereof. The means for opening the film (3) comprise a continuous zone of weakening (A), which zone is oriented transversely to the preferred direction of tearing (D), and forming a band (6) which surrounds the pack, this zone of weakening (A) having a mechanical strength which is sufficiently high to bear the traction stresses exerted on the film to retain the articles, but sufficiently low to permit opening of the film, without a tool, at any point whatsoever of the zone.

Abstract: A polypropylene composition for a laminated and oriented film comprising (A) 73 to 97% by weight of a crystalline propylene random copolymer having a propylene content of 60 to 97% by weight, an ethylene content of 0 to 6% by weight and an .alpha.-olefin content of 3 to 40% by weight, (B) 2.5 to 17% by weight of a propylene- .alpha.-olefin random copolymer having a propylene content of 35 to 75% by weight and an .alpha.-olefin content of 25 to 65% by weight, and (c) 0.5 to 10% by weight of a crystalline propylene polymer. A polypropylene composition for a laminated and oriented film being film-formed for a long time without hurting a transparency and a low temperature heat-sealing property and having an excellent solvent resistance and an excellent hot-tack property, and a laminated and oriented film having this composition on a surface layer are provided.

Abstract: A laminate material and a uniaxially oriented laminate which contains an additive but does not suffer from the trouble caused by the exudation of said additive, and the laminate material comprises an inner layer composed of an orientable resin A containing an additive and coating layers composed of a resin B and being applied onto both surfaces of said inner layer to prevent the additive from exudation and the uniaxially oriented laminate is prepared by uniaxially stretching the above laminate material.

Abstract: A multilayer, biaxially oriented, heat shrinkable thermoplastic film includes a layer having between 50 and 100 parts by weight ethylene/alpha-olefin C.sub.4 -C.sub.12 copolymer, and between 0 and 50 parts by weight of a polymer selected from polyolefin, and modified polyolefin, the layer having more than one melting point when detected by diffential scanning calorimetry according to ASTM D-3418; wherein the total thickness variation in the multilayer film is lower than .+-.10%, and wherein the average deviation of the multilayer film from a straight line is lower than .+-.40 mm, and wherein the sag average of the multilayer film is lower than 25 mm. A method of making the film, and a package made with the film, are also disclosed.

Abstract: A reinforcing tape for a slide fastener is disclosed. The reinforcing tape to be bonded to the end portion of a fastener tape comprises a reinforcing layer formed of a polyester elastomer film manifesting a modulus of elasticity in bending in the range of 3,000 to 5,000 kg/cm.sup.2 and an adhesive layer. Preferably a polyester-based hot-melt adhesive is used for the adhesive layer.

Abstract: The subject invention pertains to a film structure suitable for the packaging of perishable food, comprising at least one film layer which in turn comprises a blend of at least one homogeneous linear or substantially linear ethylene polymer and at least one polypropylene polymer, wherein the film structure is characterized as having a 2% secant modulus which is at least 8% greater than a comparable film structure prepared without the polypropylene polymer, an oxygen transmission rate of at least 700 cc(at STP)-mil/100 in..sup.2 -day-atm at 25.degree. C. The inventive film structures exhibit an optimized balance of properties, making them especially useful in modified atmosphere packages for perishable goods. The inventive films are particularly suited for the packaging of fresh fruits, vegetables, and other perishable items which would benefit from controlled access to environmental oxygen.

Abstract: A biaxially oriented polypropylene film is described. The n-heptane-insoluble content of the film has a chain isotactic index, measured by .sup.13 C-NMR spectroscopy, of at least 97%. In addition, a process for the production of the polypropylene film and the use of the film are described.

Abstract: An electromagnetic sheilding bonding film has a substantially transparent base film and an electroconductive metallic material layer geometrically patterned on the base film to have an aperture ratio of 50% or more. A bonding agent layer is placed at least over a part of the plastic base film not covered by the electroconductive metallic material layer and has a predetermined selectively given fluidity.

Abstract: A heat-transfer label well-suited for use in decorating silane-treated glass articles. In a preferred embodiment, the label exhibits good scuff resistance, is capable of withstanding pasteurization conditions on a silane-treated glass article and includes (a) a support portion in the form of a sheet of paper overcoated with a release layer of polyethylene, (b) a skim coat of wax overcoated onto the polyethylene release layer and (c) a transfer portion, the transfer portion including a cross-linked phenoxy protective lacquer layer printed onto the skim coat, a polyester ink layer printed onto the protective lacquer layer, and an adhesive layer printed onto the ink layer, as well as onto any exposed portions of the underlying protective lacquer layer and onto a surrounding area of the skim coat. The cross-linked phenoxy resin comprises a solvent-soluble phenoxy resin of the formula ##STR1## wherein the solvent-soluble phenoxy resin is cross-linked by a melamine formaldehyde resin.

Abstract: An alkali soluble hot melt composition for melt blowing applications is described which maintains a viscosity of at least 50,000 cp at temperatures of 350.degree. F. The adhesive composition in cludes about 20% to about 95%, by weight, of an alkali soluble polymer; about 0% to about 50%, by weight, of a crystalline resin; about 0-50% by weight, of a suitable filler; and about 0% to about 50%, by weight, of a suitable plasticizer.

Abstract: Films comprising a first layer, composition of said first layer comprising a blend of an ethylene vinyl acetate copolymer; linear low density polyethylene; a second ethylene vinyl acetate copolymer; and slip; a second layer, composition of said second layer comprising ethylene vinyl acetate copolymer and wherein each first and second layer having two surfaces; a third layer, composition of said third layer comprising vinylidene chloride methyl acrylate and wherein said third layer is disposed between said first and second layer; a fourth layer, composition of said fourth layer being the same as said first layer wherein said fourth layer is adhered to said first layer on the surface opposite said third layer; and a fifth layer, composition of said fifth layer comprising a blend of linear low density polyethylene and low density polyethylene wherein said fifth layer is adhered to said second layer on the surface opposite said third layer are provided for.

Abstract: The invention relates to a method for thermally bonding dissimilar polymeric layers on a paper or paperboard substrate whereby the bonding strength between the dissimilar polymeric layers is substantially increased. The method utilizes a resin of the structureA--B--A'wherein each of A and A' is selected from a hydrocarbonous material which is melt compatible with one of the polymeric layers and B is a hydrocarbonous material having characteristics compatible with the other polymeric layer in order to modify the dissimilar polymeric materials in such a manner that there is an increased thermal bonding strength between the dissimilar polymeric materials.

Abstract: Provided is two kind of thermal transfer sheets comprising a substrate and a white transfer layer, the white transfer layer being to be transferred onto an image-formed portion of an image-receiving sheet. In the one kind, white transfer layer includes a white ink layer containing a white pigment and/or a filler, and has a total light transmittance of 30 to 95% and a haze of 30 to 95% due to the white ink layer. In another kind, the white transfer layer includes a white ink layer and a peeling layer, the white ink layer containing a white pigment and/or a filler, the peeling layer laminated between the white ink layer and the substrate, and capable of causing a cohesive failure thereby converting into an irregular surface of a printed material through a transferring process. The present invention also provides printed materials by the using of the thermal transfer sheets described above and recording methods for producing of the printed materials.

Abstract: A biaxially oriented polypropylene film is described. The base ply of the film essentially consists of a polypropylene prepared by means of a metallocene catalyst. This polypropylene is distinguished by a mean isotactic block length of greater than 40, an n-heptane soluble fraction of less than 1% and a ratio of the weight average molecular weight M.sub.w to the number average molecular weight M.sub.n of less than 4.

Abstract: A multilayer, preferably heat-shrinkable, thermoplastic film for cheese packaging which comprises(a) a core barrier layer comprising a blend of from about 40 to about 85% by weight of nylon 6/12 and from about 15 to about 60% by weight of ethylene-vinyl alcohol copolymer; and(b) a heat-sealing layer comprising an ethylene-.alpha.-olefin polymer with a density .ltoreq.0.915 g/cc.

Abstract: A biaxially oriented polypropylene film is described. The base ply of the film contains at least 90% by weight of a polypropylene prepared by means of a metallocene catalyst. This polypropylene is distinguished by a mean isotactic block length of greater than 40, an n-heptane soluble fraction of less than 1% and a ratio of the weight average molecular weight M.sub.w to the number average molecular weight M.sub.n of less than 4.

Abstract: A biaxially oriented polypropylene film is described. The base ply of the film essentially consists of a polypropylene prepared by means of a metallocene catalyst. This polypropylene is distinguished by a mean isotactic block length of greater than 40, an n-heptane soluble fraction of less than 1% and a ratio of the weight average molecular weight M.sub.w to the number average molecular weight M.sub.n of less than 4.

Abstract: A label particularly adapted for use in in-mold labeling of blow-molded polyethylene containers comprising a heat activatable ethylene polymer adhesive layer and a surface printable layer with optional intermediate layers to provide interlayer adhesion and recycle of reground labels.