530 results about "Extrusion coating" patented technology

This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. The new resins were characterized by useful properties in impact, tear, adhesion, sealing, extruder motor loads and pressures at comparable melt index values, and neck-in and draw-down.

An absorbent article of the present invention may comprise a topsheet, an outer cover, and an absorbent core disposed therebetween. The outer cover may comprise an extrusion bonded laminate. The EBL may comprise a multi-layer coextruded elastomeric film and a nonwoven. The film may comprise a core layer, a first outer layer, and a second outer layer, wherein the core layer is between the first and second outer layers. The nonwoven may comprise fibers and/or filaments. The first outer layer may be non-adhesively joined to the nonwoven via extrusion coating. Further, the outer cover may be elastic to at least about 50% engineering strain. The nonwoven may have high chemical affinity for the first outer layer. The first outer layer may have a low chemical affinity for the core layer. And, the first outer layer may comprise an amount of draw down polymer greater than about 45 wt %.

Disclosed are polymer blends composed of from 25 to 75 wt % of ethylene homopolymer produced in a high pressure tubular reactor and from 75 to 25 wt % of ethylene homopolymer produced in a high pressure autoclave reactor, provided that each homopolymer is removed from the reaction zone prior to being blended together. The blends so formed have a good combination of neck-in and adhesion properties. A process for the extrusion coating of a substrate with these new polymer blends is also described.

The present invention provides a paper-based lidding material, which includes a paper layer and a layer containing a cyclic olefin copolymer. The material is useful for blister packaging and particularly suitable for push-through pharmaceutical and food blister packaging. In one embodiment, the lidding material is formed by extrusion coating and includes at least one paper layer, at least one primer layer, at least one tie layer, at least one barrier layer containing one or more cyclic olefin copolymers, and at least one sealant layer in that order. In another embodiment, the paper-based lidding material includes a paper layer laminated to one or more barrier layers containing one or more cyclic olefin copolymers adjacent to one or more sealant layers. Embodiments of the invention can be sealed to a variety of blister films, including films that are chloride-free, to provide environmentally benign blister packages having good moisture properties.

The present invention pertains to carpet and methods of making and recycling carpet. In one aspect, the carpet includes: a primary backing which has a face and a back surface; a plurality of fibers attached to the primary backing and extending from the face of the primary backing and exposed at the back surface of the primary backing; an adhesive composition backing; and an optional secondary backing adjacent to the adhesive backing. The method of making carpet includes extrusion coating the adhesive composition onto the back surface of a primary backing to form the adhesive composition backing. The method of recycling carpet can recover one or more polymeric carpet components.

A multilayer insulated wire has two or more extrusion-coating insulating layers provided on a conductor directly or via some other layer, or provided on the outside of a multicore wire composed of conductor cores or insulated cores that are collected together, wherein at least one of the insulating layers is made of a mixture prepared by mixing 100 parts by weight of a polyethersulfone resin and 10 to 100 parts by weight of an inorganic filler. A transformer utilizes the multilayer insulated wire. The multilayer insulated wire can realize such high heat resistance as heat resistance F class (155° C.), which satisfies IEC 950 standards, or higher heat resistance, in transformers; and can exhibit excellent electrical properties even at high frequencies. Further, when the transformer is used at high frequencies, the electric properties are not lowered, and influence by the generation of heat can be prevented.

The present invention relates to polypropylene compositions with improved processability and to a method for the manufacture of said compositions. Said compositions are particularly suitable for extrusion coating processes. The polypropylene composition comprises from 50 to 90 wt % of polypropylene selected from propylene homopolymer, random copolymer and block copolymer, from 5 to 25 wt % of high-pressure low-density polyethylene and from 5 to 40 wt % of unimodal and/or bimodal and/or multimodal high-density polyethylene.

This invention relates to improved water-soluble polymeric materials, and particularly to water-soluble films designed with a non-migratory plasticizer system for increasing the longterm use of the film. Specifically, the invention comprises a film comprising a blend of polyvinyl alcohol, a low molecular weight plasticizer, a high molecular weight plasticizer and a water-soluble or water-dispersible salt or mineral nucleating agent including any material which is water soluble, or substantially so, and capable of being incorporated into the film structure, preferable materials are salts or minerals. More particularly, the present invention relates to a system and method including providing a dissolvable film for packaging individually sealed dosages of materials. This present invention also relates to a method of producing a water-soluble film that can effectively act as the primary packaging for liquids, gels or pastes products containing 1-85% water by weight whilst keeping package integrity till the intended use of said product. These films can be produced by lamination of cold water-insoluble films to existing cold water soluble films, co-extrusion, solution casting, printing of a PE/PVA copolymer or a plasticized 99% Hydrolyzed PVA on an existing cold water-soluble film, or extrusion coating of PE/PVA copolymer on an existing cold water-soluble film.

An insulated electric power cable having an insulator layer formed by extrusion-coating and cross-linking a cross-linkable resin composition, which contains a polyolefin blended with a total of 0.05 to 0.4 parts by mass of at least one compound selected from the group of compounds such as N,N'-(4,4'-diphenylmethane)bismaleimide, based on 100 parts by mass of the polyolefin, and a prescribed amount of an organic peroxide cross-linking agent.

The invention relates to a preparation method of a continuous high-melt-strength polypropylene based on a grafting reaction. The continuous high-melt-strength polypropylene comprises the following components: 100 parts by weight of polypropylene, 0.01-1 part by weight of initiator, 0.1-5 parts by weight of a first grafting monomer and 0.1-5 parts by weight of a second grafting monomer. The first grafting monomer is a vinyl silicone oil compound, and the second grafting monomer is a C5-C10 monoolefin or polyene compound. The preparation method comprises the following steps: weighing the polypropylene, the initiator, the first grafting monomer and the second grafting monomer, adequately mixing the mixture, and then, adding the mixture to a twin-screw extruder, milling, extruding and granulating the mixture at 140-250 DEG C. The invention provides a method for preparing the high-melt-strength polypropylene which has no gelatin, has favorable color and luster and contains a long branch chain through a one-step silane method which has a simple process, flexibility in operation and an industrial implementation foreground, and a high-melt-strength polypropylene material obtained by the preparation method is applicable to the application fields of foaming, thermal forming, film blow molding, extrusion coating and the like.

A spiral-toothed gear is provided with a toothed ring (2) formed by extrusion coating a basic body (1) with a plastic. The spiral-toothed gear provides a connection between the basic body (1) and the toothed ring (2), whose strength makes possible the transmission of high torques in a reliable manner. The basic body (1) of the spiral-toothed gear has a flange with a disk-shaped area (1′) that is extrusion coated with the plastic toothed ring (2). The area (1″) of reduced diameter adjoining area (1′) forms a hub for mounting the spiral-toothed gear on a shaft in such a way that it rotates in unison. The area (1′) of the flange has, axially on both sides, a plurality of recesses (3, 3′) each, which are arranged distributed on its circumference, extend primarily in the axial direction but do not pass through area (1′). The recesses (3, 3′) are of a dovetail design, so that sections (4, 4′) of the outer circumference of area (1′), which are left in place between them, are undercut by the edges of the recesses (3, 3′), which said edges extend in the axial direction.

Methods and apparatus for coating substrates. A die can be employed for extrusion coating an elongated substrate, where the die defines a coating cavity therein. The die can comprise a die block having a coating supply channel for supplying a coating material to the coating cavity. The die can further comprise a guide plug and a die plate removably coupled to the die block. The guide plug can comprise a substrate inlet having a non-circular lateral cross-section, and the die plate can comprise a substrate outlet also having a non-circular lateral cross-section. A coating system comprising such a die can operate to coat a substrate where the substrate can be pushed at least partially through the die and contacts the coating material therein.

A method for producing a sensor with seamless extrusion coating of a sensor element and a sensor produced by said method. The sensor element is enclosed in as sealed a manner as possible by the extrusion mass, thus permanently preventing the ingress of water, acids, oils or other aggressive materials to the region of the sensor. The method includes inserting the sensor element into a mould cavity, mechanically fixing the sensor element in the mould cavity by at least one movable fixing element that engages the sensor with the mould cavity in a second region of the mould cavity, injection of an extrusion mass into the mould cavity, waiting until the extrusion mass has hardened in a first region of the mould cavity to fix the sensor element in position, removal of the moving fixing element, before the extrusion mass in the second region hardens, such that the still liquid extrusion mass at least partly fills the cavity left in the mould cavity by the removed fixing element.

Clear and opaque polymeric film structures for providing clear and opaque labels that are removable, respectively. The film structure includes a core layer and first skin layer, wherein the first skin layer contains a polymeric matrix of a material that allows a label, which has been produced from the film structure and applied onto a container or product, to be removed from the container or product by the solution employed in a process for re-using the container. The first skin layer is co-extruded along with the remainder of the layers of the film structure, or the first skin layer is deposited on the film structure as an emulsion or extrusion coating. The first skin layer can be contacted with a water-based adhesive to affix the label onto a particular product or product container. Labels produced from the film structure exhibit a desirable combination of excellent initial adhesion strength, moisture resistance and delaminatability, as well as excellent removability.

Disclosed are a multilayer structure, an article therewith, and a process therefor. The article includes packages such as pouch. The structure comprises a metallized film and an ethylene copolymer composition. The process is a lamination process or extrusion coating process with the ethylene copolymer composition providing adhesion of metallized film to a substrate.