B05D7/536

Polyester film and preperation method thereof

A polyester-based film having excellent scratch resistance, durability, transparency, and visibility and a process for preparing the same. The polyester-based film comprises a base layer and a coating layer on at least one side of the base layer. The light passage according to Relationship 1 is 91% or more, or the total transmittance for light of 380 nm to 780 nm is 92% or more, it has excellent optical properties, durability, visibility, and reliability. Thus, it can be applied to display devices such as smartphones, tablet PCs, and laptops. In addition, in the polyester-based film according to an embodiment, the strain with respect to tensile load satisfies a specific range, whereby it is possible to achieve the flexibility that hardly causes deformation even when a certain load is maintained for a long period of time. Thus, it can be applied to flexible display devices, particularly, foldable display devices.

METHOD OF MANUFACTURING A PANEL

A method is provided for manufacturing a panel. of the method may involve supplying a substrate having an upper side. A layer may be provided onto the upper side. The upper side may be irradiated so as to cure at least a part of the layer by irradiation, hence forming the panel. The layer may include a liquid coating on substantially the entire upper side and a substance which is digitally printed locally on the upper side. The substance and the liquid coating may cooperate such that either (1) the coating and the substance react with each other, whereas the substance is a liquid that is printed on the upper side before the coating is applied and wherein the substance and the coating have different surface tensions, or (2) the coating is non-curable or only curable to a limited extent by the irradiation, whereas the substance makes the coating curable by the irradiation at locations where they meet each other.

Jet-black multilayer coating film and forming method thereof

The present disclosure provides a jet-black multilayer coating film having excellent properties in high appearance, water resistance, and humidity resistance and comprising a base coating film and a clear coating film formed by a coating composition containing a plant-derived aliphatic polyester mainly and a method for forming the same. A jet-black multilayer coating film comprising a base coating film layer formed by a base coating composition which contains a polyester polyol (A-1) containing a polyol having three or more functions and lactic acid as a consisting component of 80 mol % or more and having a hydroxyl value of 140 to 240 mgKOH/g wherein 70 mol % or more of the hydroxyl groups are secondary hydroxyl groups, an acrylic resin (A-2) with a hydroxyl value of 30 to 80 mgKOH/g and a glass transition point of 40 to 80° C., and a polyisocyanate (A-3), and a clear coating film layer formed on said base coating film layer by a clear coating composition which contains a polyester polyol (B-1) obtained by polymerization of a raw composition of a polyol having three or more functions, sebacic acid, and a diol and having a hydroxyl value of 140 to 240 mgKOH/g, an acrylic resin (B-2) with a hydroxyl value of 120 to 220 mgKOH/g, and a polyisocyanate (B-3).

COATED METAL SHEET, METHOD FOR PRODUCING SAME, AND EXTERIOR BUILDING MATERIAL
20170226366 · 2017-08-10 ·

This coated metal sheet for exterior covering has a metal sheet and a top coating layer disposed on the metal sheet, the top coating layer is configured from a fluororesin and contains a gloss control agent comprising 0.01-15 vol % of microporous particles and a matte agent comprising primary particles, and the coated metal sheet satisfies the belowmentioned formulae. In the number-based particle size distribution of the gloss control agent and the matte agent, R is the number average particle size (μm) of the gloss control agent, D1.sub.97.5 and D2.sub.97.5 represent the 97.5% particle size (μm) of the gloss control agent and the matte agent, Ru is the upper limit particle size (μm) of the gloss control agent, and T is the top coating layer thickness (μm).


D1.sub.97.5/T≦0.9


Ru≦1.2T


R≧1.0


0.5≦D2.sub.97.5/T≦7.0


3≦T≦40.

Polyurethane Surfacing Film
20220041897 · 2022-02-10 ·

Surfacing films and related processes are provided. These films include a first clear coat layer comprising a first crosslinked polyurethane that is the reaction product of an isocyanate; a polyol selected from the group consisting of: a caprolactone polyol, polycarbonate polyol, a polyester polyol, acrylic polyol, polyether polyol, polyolefin polyol, and mixtures thereof; and a hydroxy-functional silicone poly(meth)acrylate; a second clear coat layer comprising a crosslinked polymer that is essentially free of hydroxy-functional silicone poly(meth)acrylate; a bulk layer comprising a thermoplastic polyurethane; and an adhesive layer. The provided films overcome the problem of migration of solvents and other impurities into the polyurethane bulk layer because the clear coat layer is cured, and solvents removed, prior to the coating of the polyurethane bulk layer. Manufacturing of these films can provide substantially faster line speeds and reduced waste.

METHOD FOR PRODUCING A THREE-DIMENSIONAL STRUCTURE ON A SURFACE OF A FLAT SUBSTRATE, RESULTING SUBSTRATE, AND DEVICE FOR PRODUCING THE SUBSTRATE ACCORDING TO THE METHOD
20210394431 · 2021-12-23 ·

A method for producing a three-dimensional structure on a surface of a flat substrate, a device for implementing the method, and the substrate that can be produced, the method providing the substrate with the surface ready to be treated; applying a relief product in the form of droplets on the surface, such that selected areas of droplets are produced on the surface; applying a covering product to the surface such that it forms a layer over the surface; and fixing the layer of the covering product with the selected areas on the surface being free from the covering product.

APPARATUS AND METHODS USING COATINGS FOR METAL APPLICATIONS
20210370348 · 2021-12-02 ·

An apparatus and methods for using coatings for metal applications are disclosed. According to one embodiment, an article comprises a cured polymeric film having a first reaction product of a cationic photoinitiator and a compound suitable for cationic polymerization. The article has a second reaction product of a free-radical photoinitiator and a compound suitable for free-radical polymerization; The article has a metal substrate, wherein the cured polymeric film coats the metal substrate.

POLYESTER FILM AND PREPERATION METHOD THEREOF

A polyester-based film having excellent scratch resistance, durability, transparency, and visibility and a process for preparing the same. The polyester-based film comprises a base layer and a coating layer on at least one side of the base layer. The light passage according to Relationship 1 is 91% or more, or the total transmittance for light of 380 nm to 780 nm is 92% or more, it has excellent optical properties, durability, visibility, and reliability. Thus, it can be applied to display devices such as smartphones, tablet PCs, and laptops. In addition, in the polyester-based film according to an embodiment, the strain with respect to tensile load satisfies a specific range, whereby it is possible to achieve the flexibility that hardly causes deformation even when a certain load is maintained for a long period of time. Thus, it can be applied to flexible display devices, particularly, foldable display devices.

Hard coat laminated film and method for producing same

Embodiments provide a hard coat laminated film including a first hard coat, a second hard coat, and a transparent resin film layer in order from the outermost surface layer side, where the first hard coat is formed of a coating material containing no inorganic particles; the second hard coat is formed of a coating material containing inorganic particles; and the hard coat laminated film satisfies the following requirements: (i) the total light transmittance is 85% or more; and (ii) the pencil hardness of the surface of the first hard coat is 5H or higher.

APPARATUS AND METHODS USING COATINGS FOR METAL APPLICATIONS
20230271219 · 2023-08-31 ·

An apparatus and methods for using coatings for metal applications are disclosed. According to one embodiment, an article comprises a cured polymeric film having a first reaction product of a cationic photoinitiator and a compound suitable for cationic polymerization. The article has a second reaction product of a free-radical photoinitiator and a compound suitable for free-radical polymerization. The article has a metal substrate, wherein the cured polymeric film coats the metal substrate.