The present invention relates to a functional fabric manufacturing method and a functional fabric thereby, which relates to a method for manufacturing an upcycle functional fabric, comprising steps of: (a) preparing a separator sheet with a microporous structure discarded due to treatment as defective or overproduction in production processes for manufacturing secondary batteries, (b) interposing an adhesive sheet between the separator sheet and a fabric sheet to be added to the separator sheet, thereby supplying each sheet, (c) laminating the separator sheet and the fabric sheet so that they are bonded by melting of the adhesive sheet, wherein in the step (b), each sheet is supplied to maintain a constant tension, but the separator sheet, the adhesive sheet, and the fabric sheet are all supplied at the same speed, and in the step (c), a stacked structure, in which the separator sheet, the adhesive sheet, and the fabric sheet are stacked in this order, is pressurized in a predetermined temperature atmosphere, and laminated.

A multilayer sheet comprising first, second, and third layers is provided. The first layer consists of a co-polyester having an elongation at break of greater than 70%. The second layer consists of a thermoplastic polyurethane elastomer having an elongation at break of greater than 200% and a hardness of about 60 A to about 85 D. The first layer has a hardness greater than the hardness of the second layer. A mold is provided and the multilayer sheet is thermoformed over the mold to form a plurality of tooth-receiving cavities configured to receive and position a patient's teeth from a first arrangement toward a second arrangement. Excess material is trimmed from the thermoformed multilayer sheet to form the multilayer dental aligner.

Multilayer polymer sheets are provided, as well as related methods, systems, and appliances.

Multilayer polymer sheets are provided, as well as related methods, systems, and appliances.

Polyolefin resin modifiers are provided that contain a nonionic surfactant, an organic sulfonate salt, and an inorganic salt. The organic sulfonate salt can be at least one selected from the group consisting of alkylsulfonic acid alkali metal salts whose alkyl group has 6 to 22 carbon atoms, alkylarylsulfonic acid alkali metal salts whose alkyl group has 6 to 22 carbon atoms, and sulfonic aliphatic ester alkali metal salts whose alkyl group has 6 to 22 carbon atoms. The inorganic salt can be at least one selected from the group consisting of sodium sulfate, potassium sulfate, calcium sulfate, lithium sulfate, sodium chloride, potassium chloride, lithium chloride, magnesium chloride, and calcium chloride.

In-line systems and in-line methods are described that can be used to provide lightweight reinforced thermoplastic composite articles that include a textured film layer. The textured film layer can provide one or more of water resistance, flame retardancy, a desired surface roughness or other desired properties. The lightweight reinforced thermoplastic composite articles that include a textured film layer can be used in building applications, in recreational vehicle applications and in other applications as desired.

A photochromic polyurethane laminate that is constructed to solve certain manufacturing difficulties involved in the production of plastic photochromic lenses is disclosed. The photochromic laminate includes at least two layers of a resinous material and a photochromic polyurethane layer that is interspersed between the two resinous layers and which contains photochromic compounds. The polyurethane layer is formed by curing a mixture of a solid thermoplastic polyurethane, at least one isocyanate prepolymer, at least one photochromic compound, and a stabilizing system.

Multilayer polymer sheets are provided, as well as related methods, systems, and appliances.

A method to manufacture an elastic laminate is disclosed. Thermoplastic Elastomeric Material (TEM) is selected from a polymer supply and fed into an extruder. The TEM film is extruded by the extruder by passing the TEM polymer through an extrusion die head to form a TEM film layer on a carrier web provided by a carrier supply. The TEM film layer is allowed to solidify on the carrier web, thereby forming a first laminate. The first laminate is stored in a first storage prior to being delivered to a delamination unit, which delaminates the first laminate by separating the TEM layer from the carrier web. The delaminated TEM layer is stretched at least in its Machine Direction (MD) in a stretching station via a plurality of web guide means. The stretched TEM layer is positioned between a first envelope web and optionally a second envelope web prior to being delivered to a bonding unit, which connects them to form a second bonded laminate. The second bonded laminate is unstretched and stored in a second storage for a predetermined time. The stored second bonded laminate is wound under controlled tension to form a roll or spool, thereby forming the elastic laminate.

A dental appliance for positioning a patient's teeth includes a removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to directly receive at least some of the patient's teeth and apply a resilient positioning force to the patient's teeth. The appliance includes a hard polymer layer having a hard polymer layer elastic modulus disposed between a first soft polymer layer having a first soft polymer layer elastic modulus and a second soft polymer layer having a second soft polymer layer elastic modulus. The hard polymer layer elastic modulus is greater than each of the first soft polymer layer elastic modulus and the second soft polymer layer elastic modulus. At least one of the first soft polymer layer and the second soft polymer layer has a flexural modulus of greater than about 35,000 psi.