A method for producing polymer coated steel sheet for 3-piece cans and 3-piece cans produced thereof.

Methods are disclosed for converting on a mass scale elongated material webs into finished parts or devices. Slits form strands in a web, the strands comprising interconnected objects which correspond to parts of finished devices. Strands are combined with additional webs to form a material laminate from which finished devices are die cut. The methods are suitable for a range of converting applications including medical devices, particularly the external nasal dilator. Complex dilator devices produced from the methods are formed as a single body truss having horizontal regions adapted to engage outer wall tissues of first and second nasal passages of a nose. When in use the dilator stabilizes or expands nasal outer wall tissues and prevents the outer wall tissues from drawing inward during breathing. Methods of manufacture comprise separate steps for fabricating and assembling the elements and layers of finished dilator devices and for packaging finished devices individually or in groups. Waste material is incorporated into subsequent fabrication processes to produce the same or complementary devices.

A reinforced stretch film obtained by a method of producing a reinforced stretch film comprising the steps of: providing an elongated base sheet of plastic stretch film having a longitudinal axis, forming a plurality of cord-like, elongated reinforcement members and a plurality of plastic film strip overlays, positioning the plurality of elongated reinforcement members on the elongated base sheet, positioning a single plastic film strip overlay over each of the elongated reinforcement members, folding each edge of the elongated base sheet inward toward a center of the elongated base sheet to further strengthen and reinforce each edge and attaching the plastic film strip overlays and the folded edges to the cord-like, elongated reinforcement members and to the elongated base sheet to fixedly sandwich the cord-like, elongated reinforcement members between the elongated base sheet and the narrow plastic film strip overlays.

A method allows for rapid manufacture of relatively thick adhesive coatings using a continuous process, where a single thin coating is continuously converted into a single thicker adhesive laminate. An exemplary process includes the steps of: (1) producing a web having a first surface with an adhesive layer and a second surface with a release liner; (2) slitting the web longitudinally into a first section and a second section; (3) laminating a backing film to the adhesive layer of the first section; (4) removing the release liner of the laminate of step (3) exposing the adhesive layer of the first section; and (5) laminating the second section to the laminate of step (4), wherein the adhesive layer of the laminate of step (4) is combined with the adhesive layer of the second section.

A nasal dilator comprises adjacent, substantially parallel resilient members having mid-sections substantially parallel to the dilator longitudinal centerline and end portions that diverge obliquely away from the centerline. The dilator may comprise a laminate of vertically stacked material layers that each have a different peripheral shape, and greater or lesser surface area, from that of the others. The dilator may comprise resilient members that diverge or curve symmetrically about the dilator longitudinal centerline such that a shape of a resilient member on one side of a lateral centerline is a mirror image of its shape on the opposite side of the lateral centerline.

A method of making a laminated shingle is provided. The method includes coating a shingle mat with roofing asphalt to make an asphalt-coated sheet, adhering a reinforcement member to a portion of the asphalt-coated sheet, covering the asphalt-coated sheet, and optionally covering the reinforcement member, with granules to make a granule-covered sheet, dividing the granule-covered sheet into an overlay sheet and an underlay sheet, wherein the overlay sheet has a tab portion normally exposed on a roof and a headlap portion normally covered-up on a roof, the headlap portion having a lower zone adjacent the tab portion and an upper zone adjacent the lower zone, and wherein the reinforcement member is adhered to the lower zone of the headlap portion and laminating the overlay sheet and the underlay sheet to make the laminated shingle.

A method of making a laminated shingle is provided. The method includes coating a shingle mat with roofing asphalt to make an asphalt-coated sheet, adhering a reinforcement member to a portion of the asphalt-coated sheet, covering the asphalt-coated sheet, and optionally covering the reinforcement member, with granules to make a granule-covered sheet, dividing the granule-covered sheet into an overlay sheet and an underlay sheet, wherein the overlay sheet has a tab portion normally exposed on a roof and a headlap portion normally covered-up on a roof, the headlap portion having a lower zone adjacent the tab portion and an upper zone adjacent the lower zone, and wherein the reinforcement member is adhered to the lower zone of the headlap portion and laminating the overlay sheet and the underlay sheet to make the laminated shingle.

A method for producing polymer coated steel sheet for 3-piece cans and 3-piece cans produced thereof.

A method of making a laminated shingle is provided. The method includes coating a shingle mat with roofing asphalt to make an asphalt-coated sheet, adhering a reinforcement member to a portion of the asphalt-coated sheet, covering the asphalt-coated sheet, and optionally covering the reinforcement member, with granules to make a granule-covered sheet, dividing the granule-covered sheet into an overlay sheet and an underlay sheet, wherein the overlay sheet has a tab portion normally exposed on a roof and a headlap portion normally covered-up on a roof, the headlap portion having a lower zone adjacent the tab portion and an upper zone adjacent the lower zone, and wherein the reinforcement member is adhered to the lower zone of the headlap portion and laminating the overlay sheet and the underlay sheet to make the laminated shingle.

A roofing shingle includes an overlay sheet having a first granular material secured to a headlap portion of the overlay sheet, an underlay sheet, and a reinforcement material secured directly to an asphalt coating of the headlap portion of the overlay sheet without extending into a tab portion. The reinforcement material extends beyond overlapping regions of the headlap portion and the underlay sheet such that a portion of a reinforced nail zone is disposed on a single-layer portion of the shingle. A second granular material is secured to the headlap portion of the overlay sheet along the longitudinal axis of the reinforced nail zone, with the second granular material providing a thinner cross-section than the first granular material to define a depressed surface extending along said longitudinal axis of the shingle.