B32B2307/702

Multilayer film including foam layer and ostomy products made therefrom
11351054 · 2022-06-07 · ·

An ostomy appliance includes a multilayer composite film comprising at least one foam layer. An outer foam layer can function as a skin contact layer providing comfort and softness characteristics that are comparable to a nonwoven comfort layer. Preferably, at least one foam layer includes a vinyl-bond rich triblock copolymer and provides sound absorbing properties. The multilayer composite film can also include at least one layer comprising a filler to further enhance sound absorbing properties.

Film Comprising Polylactic Acid Polymer Suitable for Graphic Articles
20220169846 · 2022-06-02 ·

An article is described comprising a first film layer comprising polylactic acid polymer (semicrystalline polylactic acid polymer; amorphous polylactic acid polymer; or a mixture thereof); a second (e.g. polyvinyl acetate) polymer having a Tg of at least 25° C.; plasticizer. In some embodiment, the film layer further comprises inorganic pigment and/or hydrolysis stabilizer. In other embodiments, the film has a net melting endotherm, ΔH.sub.nm1, of less than 10 J/g. Also described are methods of making a graphic film.

RESIN COMPOSITION FOR PRODUCTION OF FOAM PARTICLES, FOAM PARTICLES, FOAM MOLDED BODY AND COMPOSITE STRUCTURE MEMBER
20220169819 · 2022-06-02 · ·

An object of the present invention is to provide a resin composition that can produce a foam molded body having a beautiful appearance while exhibiting excellent mechanical properties. The above object is achieved by a resin composition for producing foam particles, the resin composition comprising a base resin containing a polycarbonate resin having a glass transition temperature of 140 to 155° C. and an amorphous polyester resin having a glass transition temperature of 100 to 130° C., and the amorphous polyester containing a unit derived from a cyclic diol.

Metal pipes with anticorrosive polyolefin covering layer

The present invention provides a metal pipe coated on at least a section of the metal pipe with a polyolefin coating system, wherein the system consists of the following layers: (a) optionally, a corrosion protective layer of a chromate, phosphate or other salt; (b) a polyolefin based adhesive, preferably in a thickness of 0.3-5 mm; (c) a PE or PP coating layer, preferably in a thickness of 1-10 mm; (d) optionally, an adhesion promoting layer between the polyolefin based adhesive and a PE or PP layer; wherein the polyolefin based adhesive contains an organic phase consisting of substantially saturated hydrocarbons, and wherein the adhesive contains amorphous polypropylene, ethylene-propylene copolymers or poly(iso)butylene (co)polymers, said adhesive being flowable when a pressure of 10 kgf/cm.sup.2 is applied, wherein the PE or PP coating is a continuous layer over the coated section, and wherein said polyolefin based adhesive adheres to both the metal pipe and to said PE or PP coating.

OVENABLE TRAY COMPOSITE AND PACKAGE

An ovenable tray composite that includes a polymeric based liner and a fiber based component. The liner has an exterior surface layer and an interior surface layer comprising a polypropylene. The polypropylene has a Melt Index of about 0.2 grams/10 minutes to about 2 grams/10 minutes. The interior surface layer of the polymeric based liner is removably affixed to the interior surface of the fiber based component, and where the polymeric based liner and the fiber based component are manually separable.

Oriented multilayer shrink films with amorphous copolyester skin layers

A multilayer, oriented shrink film includes a core layer, skin layers on opposed sides of the core layer, and an interlayer between each skin layer and the core layer for bonding each skin layer to the core layer. The core layer comprises a polypropylene terpolymer, at least one polybutene-1 copolymer and at least one polypropylene elastomeric copolymer including ethylene. At least one skin layer comprises at least one amorphous glycol-modified polyethylene terephthalate. At least one interlayer includes a polypropylene terpolymer and an ethylene copolymer with vinyl acetate or methyl acrylate. The shrink film has a shrinkage of greater than 50% at 95° C. in one of the machine direction and transverse direction of film formation and has a density below 1.0 g/cm3.

METAL PIPES WITH ANTICORROSIVE POLYOLEFIN COVERING LAYER

The present invention provides a metal pipe coated on at least a section of the metal pipe with a polyolefin coating system, wherein the system consists of the following layers: (a) optionally, a corrosion protective layer of a chromate, phosphate or other salt; (b) a polyolefin based adhesive, preferably in a thickness of 0.3-5 mm; (c) a PE or PP coating layer, preferably in a thickness of 1-10 mm; (d) optionally, an adhesion promoting layer between the polyolefin based adhesive and a PE or PP layer; wherein the polyolefin based adhesive contains an organic phase consisting of substantially saturated hydrocarbons, and wherein the adhesive contains amorphous polypropylene, ethylene-propylene copolymers or poly(iso)butylene (co)polymers, said adhesive being flowable when a pressure of 10 kgf/cm.sup.2 is applied, wherein the PE or PP coating is a continuous layer over the coated section, and wherein said polyolefin based adhesive adheres to both the metal pipe and to said PE or PP coating.

Delamination resistant, weldable and formable light weight composites
11331880 · 2022-05-17 · ·

The present invention relates to filled polymeric materials including a thermoplastic polymer and a metallic filler and to light weight composite materials, which comprise a metallic layer and a polymeric layer, the polymeric layer containing the filled polymeric material. The filled polymeric material preferably is an extruded sheet. The composite materials of the present invention may be formed using conventional stamping equipment at ambient temperatures and/or welded to other metal materials using conventional welding techniques.

Composite structures for packaging articles and related methods

The composite structure includes a fiber-containing layer, such as a fiberboard layer or other layer having fibers from natural and/or synthetic sources, and a mineral-containing layer covering the fiber-containing layer. The fiber-containing layer and mineral-containing layer can be shaped, sized and manufactured such that the composite structure formed therefrom is capable of being machined to form a storage article. The composite structure has advantages in that it can improve whiteness, opacity, ink adhesion, materials reduction, barrier properties, recyclability, and printability. The composite can reduce polymer mass requirements for heat seal, barrier, and fiber adhesion. Further improvements include economics, pliability, and flexibility that is increased over the pliability of the fiber-containing layer alone.

Method of forming a formable polyester film

A formable biaxially-oriented film includes a first layer. The first layer includes from about 10 to about 90 wt. % crystalline polyester and from about 10 to about 90 wt. % of a formability enhancer to assist in increasing the polymeric chain flexibility. The formability enhancer has a melting point less than about 230° C. The film has a MD and a TD Young's Modulus of at least 10% lower than a crystalline polyester film in the absence of the formability enhancer. The film may further include a second layer, which includes an amorphous copolyester. The second layer may be adjacent to or attached to the first layer.