Abstract: A multilayer label stock structure comprising a label stock of polypropylene film having on one side thereof a highly printable blend of (A) alkylene acrylate copolymer and (B) an interpolymer of an alkyl acrylate, an alkyl methacrylate and an alkyl acrylate acid.

Abstract: A polystyrene resin in foam form having a basis weight of less than about 20 g/100 in.sup.2 and a density of about 6 lbs./ft.sup.3 or less, the foam precursor of which is either a polystyrene having a melt index of about 8 or more or a polystyrene in combination with a minor proportion of any other material which will result in a melt index of about 8 or more. A method of forming such a polystyrene resin foam structure includes combining the resin in molten form under pressure with the blowing agent of at least approximately 100% carbon dioxide and extruding the mixture through a die into an atmosphere of reduced pressure to form the foam structure.

Abstract: A multilayer thermoplastic stretch wrap film having two outer layers, at least one of said layers comprising a layer of a linear low density copolymer of an appha olefin of from 4 to 10 carbon atoms, said copolymer containing from 3.5 to about 15 weight percent of n-hexane extractibles.

Abstract: A method of decontaminating waste contaminated polystyrene involves dissolving the contaminated product in liquid styrene monomer at about room temperature and recovering the contaminant-free solution. The solution can be used as part of styrene feed stock for polymerization of styrene.

Abstract: A release film for label stock including a film substrate having a coating of a silicone-acrylate release material which includes a quaternary ammonium salt therein.

Abstract: A release film for label stock and the like having:(a) a cavitated layer of a thermoplastic polymer matrix material within which is located a strata of voids, positioned at least substantially within at least a substantial number of each of the voids is at least one spherical void-initiating solid particle which is phase-distinct and incompatible with the matrix material, the void space occupied by the particle being substantially less than the volume of the void, with one generally cross-sectional dimension of the particle at least approximating a corresponding cross-sectional dimension of the void; the population of the voids being such as to cause a degree of opacity of less than 70% light transmission;at least one surface of the layer free of any coating tending to mask the surface affects of cavitation; and(b) opposite to this surface, a coating of a release material of a type having a tendency to partially transfer to any contacting surface.

Abstract: A multilayer film combination has a pair of base layers each of a blend of polypropylene and maleated polypropylene, each is machine direction oriented before receiving a coating of PVOH containing a cross-linking agent and each is mated with the PVOH coatings together before the combination is transverse direction oriented.

Abstract: The invention relates to a laminate of layer (A) a biaxially oriented high density polyethylene film of at least 50 wt. % of the polyethylene of a density of 0.960 or greater; and layer (B) a biaxially oriented polypropylene film.

Abstract: An opaque, biaxially oriented polymeric label stock structue, of:(a) a thermoplastic polymer matrix core layer having a first surface and a second surface, within said core is located a strata of voids, positioned at least substantially within a substantial number of said voids is at least one spherical void-initiating particle which is phase distinct and incompatible with the matrix material, the void space occupied by the particle being substantially less than the volume of the void, with one generally cross-sectional dimension of the particle at least approximating a corresponding cross-sectional dimension of the void; the population of the voids in the core being such as to cause a significant degree of opacity;(b) a first high gloss medium density polyethylene skin layer adhering to the first surface of the core layer;(c) a second thermoplastic polymer skin layer adhering to the second surface of the core layer; and(d) an adhesive on the second surface of the thermoplastic skin layer.

Abstract: A metallized oriented film combination having a propylene polymer substrate with a high density polyethylene skin layer on at least one side thereof and a thin metal layer deposited on the surface of the high density polyethylene.

Abstract: A metallized film combination of an oriented polymeric substrate layer having on one surface thereof a coating of a blend of (a) a vinyl alcohol homopolymer or copolymer and (b) an ethylene-acrylic acid copolymer, the coating blend having a metal layer thereon. The method involves coating the substrate after the substrate has been machine direction oriented and before the combination is transverse direction oriented followed by TD orientation and finally by depositing a metal layer on the blend surface.

Abstract: A pack of grocery sacks has releasable adhesive regions between contacting walls of adjacent sacks in order to insure the substantial opening of a following sack when a lead sack is removed from a rack supporting the pack.

Abstract: A non-symmetrically layered, highly opaque, biaxially oriented polymer film with a core containing numerous microscopic voids and at least about 1% by weight of opacifying compounds; a first skin layer on one surface of the core containing up to about 12% by weight of inorganic particulate material; and a second skin layer on the other surface of the core.

Abstract: A metallized film combination of an oriented polymeric substrate layer having on at least one surface thereof a coating of a blend of (a) a vinyl alcohol homopolymer or copolymer and (b) an ionic copolymer of ethylene and an ethylenically unsaturated monocarboxylic acid wherein at least 10% of the carboxylic acid groups are neutralized with an alkali metal ion; and the surface of said layer blend having a metal layer thereon and the method of coating the blend of (a) and (b) on the substrate after it is machine direction oriented, followed by transverse direction orientation and depositing a metal layer on the coating surface.

Abstract: A metallized film combination of a polymer substrate at least one surface of which includes a maleic acid anhydride modified propylene homopolymer or copolymer, that at least one surface having a skin layer thereon of ethylene vinyl alcohol copolymer and said skin layer having an aluminum layer directly thereon.

Abstract: An oriented, multi-layer polymer film laminate having a core of isotactic polypropylene, an outside skin layer of isotactic polypropylene containing an anti-blocking agent and an inside heat sealable skin layer containing an anti-blocking agent and a coefficient of friction-reducing amount of a silicone oil.

Abstract: An apparatus and process for stretch-dispensing stretch wrap film is disclosed wherein a hollow core supply roll of stretch film is dispensed in a controlled manner utilizing a brake means mounted within the core which urges by its own resiliency against the inside surface of the core while still permitting frictionally retarded axially rotation of the core about the brake and having handles connected to this brake means.

Abstract: A system for suspending a pack of thermoplastic bags, loading bags, removing loaded bags and for automatically opening the next bag preparatory to loading it by having a pack of handled bags suspended from laterally spaced elongated rods of a rack. The bags have been corona discharge treated in the handle and bag mouth region to such an extent that the pressure and cutting action during the formation thereof will cause adjacently facing cut edge regions to releasably adhere together until a moderate force separates them. During removal of a bag from the bag pack at least a portion of the cut edge of the mouth and handle region of the front wall of the next bag will follow the bag being removed for a short distance before separation thereby opening the next bag rendering it ready for loading.

Abstract: The present invention relates to thermoplastic bag structures which are characterized by having a pair of carrying handles which are formed integrally with the bag walls, and extend upwardly from the open mouth portion of the bag. The configuration of the individual bag handles is such that there is reduced tendency for that portion of the handle which is in the user's palm, when such bags are loaded are carried, to curl into a small cross sectional area, commonly known as roping. Additionally, the individual bags are constructed so that when the bags are loaded and being carried by the user, the stress points around the bag mouth are distributed to areas which are less likely to rupture and tear as a result of stress concentration.

Abstract: A dispensing system for a package of a continuous, severable sheet material comprising a number of individual severable members, such as plastic bags, separated by transverse pre-weakened regions, such as perforations, is composed of a storage container holding the package and a dispensing device. The dispensing device is separate from and is located at a location remote from the storage container. The continuous severable sheet material is conducted to the dispensing device and is threaded therethrough until the pre-weakened separating two consecutive members emerges through the exit of the device. A sufficient force is then applied to the continuous, severable sheet material to separate the two consecutive members from each other at the pre-weakened regions.