Abstract: A water based antistatic coating composition comprising:(a) at least one water soluble antistatic agent which is acceptable for food packaging polymer films;(b) at least one water soluble or water dispersible film-forming polymer; and,(c) a solution or dispersion-forming amount of water.When applied to a polymer film substrate, the foregoing antistatic coating composition forms, upon drying, and adherent antistatic coating.

Abstract: A cold sealable emulsion polymerized terpolymer cohesive formulation which has low surface tack characteristics, prepared from the emulsion polymerization of a first monomer selected from the group consisting of ethyl acrylate, hexyl acrylate, isooctyl acrylate, butyl acrylate, methyl acrylate and vinylidene chloride, a second monomer selected from the group consisting of vinyl acetate, methyl methacrylate, styrene, ethyl methacrylate and isobutyl methacrylate and a third monomer selected from the group consisting of methacrylic acid, acrylic acid, itaconic acid, sulfoethyl methacrylate and malic acid with the proviso that each of said first, second and third monomers are different.

Abstract: A semi-continuouds, multi-stage polymerization process is provided for synthesizing a heat-sealable multi-layered composite particle latex. The multi-layered composite latex particles of this invention provide excellent oxygen and vapor barrier properties without hindering the desired surface properties, including high heat-sealing strength, low minimal seal temperature, excellent machinability, i.e. low blocking and low coefficient of friction. The latex particles of the present invention are formed as three-layered composite particles having an acrylic ester seed layer composed of a copolymer of methyl methacrylate and methyl acrylate. The latex particles have an intermediate core layer composed of a terpolymer having a high vinylidene chloride concentration, the other comonomers of the core layer include methyl acrylate and methacrylic acid.

Abstract: A coated, oriented polymer film laminate is provided which comprises:(a) an oriented core layer having an upper face and a lower face, said core layer being fabricated from a polypropylene homopolymer;(b) an oriented layer applied to the lower face, and optionally, to the upper face, of core layer (a), said layer being fabricated from a member of the group consisting of copolymer or blend of copolymers, homopolymer or blend of homopolymers, a blend of at least one copolymer and at least one homopolymer, terpolymer or blend of terpolymers, and a blend of at least one terpolymer and at least one homopolymer or at least one copolymer;(c) a coating layer applied to the upper face of core layer (a), or, where layer (b) has been applied thereto, to the exposed surface of said layer (b), and;(d) an adhesively bonded substrate or a coating composition applied directly to the exposed surface of layer (b) applied to the lower face of core layer (a).

Abstract: A PVDC topcoated, flexible multilayer heat sealable modified OPP film having as a primer an acrylic emulsion crosslinked with a water soluble melamine resin.

Abstract: A water based antistatic coating composition comprising:(a) at least one water soluble antistatic agent which is acceptable for food packaging polymer films;(b) at least one water soluble or water dispersible film-forming polymer; and,(c) a solution or dispersion-forming amount of water.When applied to a polymer film substrate, the foregoing antistatic coating composition forms, upon drying, and adherent antistatic coating.

Abstract: A coated, oriented polymer film laminate is provided which comprises:(a) an oriented core layer having an upper face and a lower face, said core layer being fabricated from a polypropylene homopolymer;(b) an oriented, heat sealable layer applied to the lower face, and optionally, to the upper face, of core layer (a), said heat sealable layer being fabricated from a member of the group consisting of heat sealable copolymer or blend of copolymers, heat sealable blend of homopolymers and heat sealable blend of at least one copolymer and at least one homopolymer;(c) a coating layer applied to the upper face of core layer (a), or, where heat sealable layer (b) has been applied thereto, to the exposed surface of said layer (b), said coating layer being derived from an interpolymer which is obtained from the interpolymerization of from about 0 to 15 parts by weight of an alpha-beta monoethylenically unsaturated carboxylic acid selected from the group consisting of acrylic acid, methacrylic acid and mixtures thereof

Abstract: An oriented multi-layer heat sealable film structure comprising a polyolefin film substrate, a layer of a terpolymer of ethylene, propylene and 1-butene, a primer layer on said terpolymer layer and a heat sealable layer on said primer layer.

Abstract: The present invention relates to thermoplastic films such as polypropylene and more particularly to bi-axially oriented polypropylene which are characterized by having excellent anti-static properties and good resistance to the transmission of oxygen and moisture vapor. These properties are achieved by the application of a thin primer layer containing poly (ethylenimine) to corona discharge treated oriented polypropylene film followed by the application of an aqueous dispersion of a vinylidene chloride multipolymer containing a water soluble polyol such as a low molecular weight glycol or a poly (ethylene oxide) adduct of a nonpolar molecule.

Abstract: Thermoplastic films, such as polypropylene, are coated with a vinylidene chloride based multipolymer to enhance the physical properties of such films. The coating is anchored to the base film by first applying a primer coating directly on the film surface, which primer coating comprises a water dispersed epoxy resin composition.