B29C2793/0036

METHOD AND APPARATUS FOR PRODUCING ELASTIC LAMINATES
20220001592 · 2022-01-06 ·

A method and apparatus for producing elastic laminates wherein a first and a second elastic film are stretched in the transverse direction by respective spreader devices, and are applied on a transfer wheel which—in turn—applies the first and second elastic films on a non-woven web held on the outer cylindrical surface of an anvil wheel.

APPARATUS AND METHOD FOR THE PRODUCTION AND FILLING OF CONTAINERS DESIGNED TO CONTAIN FOOD
20230294860 · 2023-09-21 ·

An apparatus for the production and filling of food containers includes at least one device for forming a sheet made of polymeric material to provide accommodation receptacles which have at least one access opening, at least one filling unit adapted to fill, through the access opening, the accommodation receptacles with at least one type of food, and at least one sealing unit to seal the access opening with a closure film. The apparatus includes at least one device for removing portions, and at least one laser emitter for providing a weakening portion at a respective connecting edge between adjacent accommodation receptacles. The polymeric material is chosen from: polyethylene terephthalate and polypropylene and copolymers thereof.

The apparatus includes a first section which accommodates the filling unit, the sealing unit, and the device for removing portions, and a second section, separate from the first section, which accommodates the laser emitter.

FIBER-REINFORCED PLASTIC AND PRODUCTION METHOD FOR FIBER-REINFORCED PLASTIC

The present invention pertains to a fiber-reinforced plastic that has, as at least one of the surface layers in the thickness direction thereof, a layer containing reinforced fibers and a matrix in which a thermosetting resin and a thermoplastic resin are integrated. The reinforced fibers form discontinuous reinforced fiber bundles randomly stacked or discontinuous reinforced fiber bundles arranged in one direction. A portion of the discontinuous reinforced fiber bundles is in contact with both of the thermosetting resin and the thermoplastic resin. The thermoplastic resin is exposed in at least a portion of the surface of the surface layer.

Laminated substrate using fiber-reinforced thermoplastic plastic, and molded product manufacturing method using same

Provided is a laminated substrate wherein a sheet-shaped material with a porosity of 50-99% is laminated onto at least one surface of a prepreg substrate which includes a reinforcing fiber and a thermoplastic resin.

Method of forming a spliced joint in a handrail or other elongate article

A handrail has a thermoplastic body having a generally C-shaped cross section, a stretch inhibitor in the thermoplastic body above a T-shaped slot and a slider fabric layer. The handrail includes first and second end portions, each comprising a forward part extending from an end surface of the end portion and a rear part adjacent the forward part. A method of forming a joint can include: providing cuts to separate a top section of the thermoplastic body from a base section including shoulder portions; for each end portion, removing at least shoulder portions from the forward part thereof, to leave a central portion including a forward part at the slider fabric layer and a layer of thermoplastic; cutting the forward parts to a required shape; and assembling the first and second end portions together to form a spliced joint for moulding.

Woven irrigation tubing
11746934 · 2023-09-05 · ·

Woven irrigation tubing comprising a woven, extrusion coated & laminated tube formed of a high density polyethylene (HDPE) outer layer, a low density polyethylene (LDPE) middle layer and a linear low density polyethylene (LLDPE) inner layer. The finished tubing is treated for ultraviolet resistance. The tubing is tied off at a distal end with a proximal end connected to a pressurized irrigation source. Watering holes are created in the tubing at spaced intervals and the resulting water streams are directed into parallel plowed furrows. The tubing is completely recyclable. The tubing is formed by manufacturing tape for the woven outer tubing cover, stretching the tape along its length to strengthen it, weaving the outer layer from the tape, flattening the woven outer layer, extrusion coating each surface of the outer layer with LDPE, laminating the LLDPE inner layer to the LDPE, reversing and winding the tubing for storage and distribution.

Process for making pouches having strong transverse shrinkage
11618602 · 2023-04-04 ·

A process for making a shrink pouch having strong shrink tension in the pouch transverse direction and minimal or no shrink tension in the pouch longitudinal direction is provided. The process includes the steps of reinflating and cold-stretch orienting a previously collapsed blown film and feeding the cold-stretch oriented blown film in a flattened configuration into a side-fed pouch making machine, whereupon the longitudinal direction of the blown film becomes the transverse direction of the pouches thus formed, and vice versa. A shrink pouch having strong transverse shrink tension and little or no longitudinal shrink tension is also provided.

Sandwich panel having anticlastic curvature characteristic and manufacturing method of same

Disclosed are a sandwich panel capable of being advantageously applied to a body wearable device, and a method of manufacturing the same. The sandwich panel includes: a core; and face sheets attached to both surfaces of the core, wherein the face sheet is made of a two-dimensional auxetic material. The core has a neutral surface in accordance with bending moment and is made of a porous material. The face sheet is made of metal, polymer, ceramic, or a composite material, and has higher density, strength, and rigidity than the core. The method includes: processing face sheets; and attaching the face sheets to both surfaces of a core, wherein the face sheet is processed to have a two-dimensional auxetic structure.

Anti-Graffiti Laminate with Visual Indicia
20230374846 · 2023-11-23 · ·

An anti-graffiti window film covering system that includes multiple polymeric film layers. Each layer includes a unique visual indicia to identify the number of sheets remaining in the system.

Method for making unidirectional continuous fiber-reinforced thermoplastic composite material

Disclosed herein a method for making a unidirectional continuous fiber-reinforced resin composite material. A resin plasticized and molten by an extruder is transported to a coating guide roller through a die head, and a hot-melt resin film layer with uniform thickness is formed on a roller surface of the coating guide roller. Simultaneously, the coating guide roller guides the hot-melt resin to continuously and uniformly coat on a row of flattened unidirectional continuous fibers along the roller surface of the coating guide roller. Subsequently, the coated flattened unidirectional continuous fibers pass through an open dip-coating roller device to effectively combine with the hot-melt resin to obtain a composite material of the hot-melt resin and fibers, which passes through a cooling and forming device to a winder under a driving force of a main traction to obtain the unidirectional continuous fiber-reinforced resin composite material.