Mobil Oil Corporation

Hee C Park

Charles R Ashcraft

Robert E Touhsaent

Shaw-Chang Chu

A Michael Nahmias

John R Wagner, Jr

Jeffrey James O'Brien

Joseph J Spitz

Christopher R Fosmire

A coating composition for application to a thermoplastic film, such as polypropylene film, the coated film and the method for coating the film are disclosed. The coating composition includes an acrylic copolymer, a slip agent and, optionally, a water dispersible wax. The acrylic copolymer can be an emulsion or a solution. The acrylic copolymer preferably includes at least 5 weight percent of a polar, functional comonomer; has an average molecular weight of at least about 10,000; and has a glass transition temperature of about 30.degree. C. to about 100.degree. C.

Coating composition for application to a thermoplastic film for reducing

Thermoplastic films coated with acrylic polymer

A multi-layer structure of low COF also having antistick characteristics over a wide temperature range during heat-sealing, comprising an amine containing polypropylene core layer having one or more skin layers of a low stereoregularity polyolefin containing, silica and a polysiloxane and a method of forming the same.

Heat-sealable multi-layer film structure same

A composite structure includes a polystyrene foam substrate bonded on at least one major surface to an oriented polypropylene film employing an acrylic adhesive composition. In addition to its other advantageous characteristics, the bond strength between the polystyrene foam and the oriented polypropylene film components of the composite structure is unusually high. The composite can be readily thermoformed into a variety of useful articles such as disposable cups, plates, cartons, containers, and the like.

Composite structure based on polystyrene foam and oriented polypropylene

An opaque, biaxially oriented film structure is described which comprises:

Opaque film composites and method of preparing same

An oriented polyolefin film structure having a base layer of, for example, polypropylene, and wherein at least one skin layer is comprised of a copolymer or terpolymer and at least one skin layer is comprised of a polyamide, polyester or polycarbonate polymer whereby said film structure has improved and broad heat sealability.

Heat sealable multilayer film and method of making same

There is disclosed a foamed, opaque, oriented polymeric film laminate which comprises:

Foamed, opaque, oriented polymeric film structure and process for its

A resin combination comprising a thermoplastic polymer matrix having dispersed therein as distinct phases, a multiplicity of small spherical solid particles of polybutylene terephthalate, the resin combination in opaque biaxially oriented polymeric film form and the same oriented film structure having on at least one surface thereof a void-free thermoplastic skin layer. The process for preparing a biaxially oriented opaque film comprising providing said resin combination, forming an unoriented film of said resin combination and biaxially orienting said film to an extent sufficient to opacify the same. The process also provides for the opaque film having a void-free thermoplastic skin layer on at least one surface thereof.

Resin composition, opaque film and method of preparing same

A multi-layer polypropylene structure of low COF also having antistick characteristics over a wide temperature range and a method of forming the same.

Multi-layer polypropylene film structure and method of forming the same

The invention involves preventing film-to-film blocking of a biaxially oriented polypropylene film which has been surface treated to enhance its wettability comprising including in said film prior to said treatment sufficient talc to prevent blocking. TiO.sub.2 can also be included in the surface film to impart paper-like characteristics thereto.

Non-blocking opaque film

An opaque oriented non-thermoplastic polymer film containing opacifying voids which opacifying voids contain rigid microspheres therein. The method of preparing such an opaque oriented non-thermoplastic film by incorporating rigid microspheres within the non-thermoplastic polymer forming a film thereof and orienting the same to create opacifying voids therein.

Opaque oriented non-thermoplastic polymer film and method of forming same

A biaxially oriented polypropylene film is provided which exhibits improved heat-seal strength and good optical clarity. The polypropylene film is characterized by having on at least one surface thereof a continuous coating of a heat-sealable film layer comprising a copolymer of ethylene and methylacrylate. The lamination may be formed by machine direction orientation of an uncoated polypropylene base web followed by extrusion coating with the copolymer material and subsequent transverse direction orientation of the combined layers.

Heat-sealable laminar thermoplastic films

A multi-layer polypropylene structure of low COF over a wide temperature range and a method for forming the same.

Multi-layer polypropylene film structure and method of forming same

The present invention is directed to an opaque, biaxially oriented polymeric film structure of lustrous satin appearance comprising a thermoplastic core matrix having a strata of voids; said voids being created by the inclusion within the matrix material of spherical void-initiating solid particles which are incompatible with the matrix material. The void space occupied by the particle is substantially less than the volume of the void. The polymer matrix material is extruded in the form of a film and positioned on opposite surfaces of the film are void free, transparent thermoplastic skin layers adhering to said surfaces. The structure has excellent opacity and extremely high gloss measurement and a lustrous satin appearance.

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Fairport, NY, United States of America

Hee C Park