Abstract: This application provides a device tracking detection method and an electronic device, and is related to the field of terminal technologies. Because when the first electronic device receives a first Bluetooth signal based on a first signal filter, it implies that a first Bluetooth peripheral is near the first electronic device; and because the first Bluetooth peripheral broadcasts the first Bluetooth signal only once every other second duration, it also implies that the first Bluetooth peripheral may be near the first electronic device within the second duration during which the first Bluetooth signal is received based on the first signal filter. Therefore, when a moving speed is greater than a preset speed threshold, recorded trajectory information of the first Bluetooth peripheral includes not only location information of the first electronic device when receiving the first Bluetooth signal, but also location information of the first electronic device within the second duration.

Abstract: The present application relates to a resin or polymer system suitable for two-component compositions, and a resin or polymer system configured for durable coatings with only thin coating weights. The resins and polymer systems of this invention provide high performance extremely thin, low gloss coatings with excellent adhesion, abrasion, scratch and chemical resistance The resins include a polyester component with one or more polyester polyols having a hydroxyl value of about 50 to about 300 and a polyurea component with one or more polyester polyol grafted polyurea polymers having a hydroxyl value of about 20 to about 100. These resin or polymer systems and two-component solvent borne coating compositions including such resin or polymer systems are surprisingly capable of achieving strong adhesion, excellent linear abrasion, and high chemical resistance all at the same time in a dry film thickness of about 2 mil or less, in some instances, about 1.

Abstract: A 2K basecoat clearcoat system includes a solvent borne basecoat having a low Tg branched polyester polyol, optionally, a high Tg, high molecular weight thermoplastic resin, and a hardener that includes an isocyanate functional material suitable for crosslinking the polyester polyol, and optional thermoplastic resin. The solvent borne clearcoat composition includes a low Tg linear or branched polyester polyol, at least one other multi-functional polyol, and an isocyanate functional material suitable for crosslinking the polyester and multi-functional polyols.

Abstract: A coating system for application to a substrate having a sol-gel film layer applied thereon includes a decorative color coat applied directly on top of the sol-gel film without an intervening adhesion layer. The decorative color coat may be a solvent borne composition including a resin which is the reaction product of a crosslinked polyepoxy resin and a polyamine crosslinker, and one or more opacifying pigments. Decorative designs may be formed by selectively applying more than one layer of decorative color coats having different colors. A transparent clearcoat may be applied to the decorative film.

Abstract: The present invention provides for a resin system and coating composition suitable for direct application to metal substrates. The composition may include a phosphate functional polyester. The polyester may be an unsaturated polyester polyol. The coating composition may further include a suitable curing agent, such as an isocyanate or melamine. The composition can be applied through traditional application equipment onto a variety of metal substrates and cures to an acceptable surface for further processing, such as top coating with basecoat and clearcoat.

Abstract: A 2K basecoat clearcoat system includes a solvent borne basecoat having a low Tg branched polyester polyol, optionally, a high Tg, high molecular weight thermoplastic resin, and a hardener that includes an isocyanate functional material suitable for crosslinking the polyester polyol, and optional thermoplastic resin. The solvent borne clearcoat composition includes a low Tg linear or branched polyester polyol, at least one other multi-functional polyol, and an isocyanate functional material suitable for crosslinking the polyester and multi-functional polyols.

Abstract: A method for refinishing a damaged area of a substrate, such as an existing finish on a vehicle which includes the steps of preparing a damaged area for refinishing, by cleaning and/or sanding, providing a multi-component coating composition which includes at least two components having functional groups reactive with each other in a crosslinking reaction and spreading the coating composition onto the area to be refinished using a squeegee applicator.

Abstract: A pigment dispersing polymer comprising a backbone having one or more urea groups and having polymeric side chains extending therefrom. The dispersing polymer may be formed from the reaction of a compound having one or more carbodiimide groups with acid functional resins such as acid functional polyesters, acid functional acrylics, acid functional polyethers, and fatty acids.

Abstract: A pigment dispersing polymer comprising a backbone having one or more urea groups and having polymeric side chains extending therefrom. The dispersing polymer may be formed from the reaction of a compound having one or more carbodiimide groups with acid functional resins such as acid functional polyesters, acid functional acrylics, acid functional polyethers, and fatty acids.

Abstract: This invention relates to a curable composition comprising a solvent solution of a mixture comprising: (i) at least one hydroxy-functional acrylic polymer having a Tg of about 25° C. or lower; and (ii) at least one hydroxy-functional polyester having a Tg of 0° C. or lower; (iii) at least one polyisocyanate having an average functionality of ?4; (iv) a metal catalyst, such as a tin compound, for accelerating the isocyanate/hydroxyl reaction; and (v) optionally a pot-life extending amount of propionic acid.

Abstract: The present invention provides for a resin system and coating composition suitable for direct application to metal substrates. The composition may include a phosphate functional polyester. The polyester may be an unsaturated polyester polyol. The coating composition may further include a suitable curing agent, such as an isocyanate or melamine. The composition can be applied through traditional application equipment onto a variety of metal substrates and cures to an acceptable surface for further processing, such as top coating with basecoat and clearcoat.

Abstract: The present invention provides for a metal coating composition that includes a resin system with at least one unsaturated polyester polyol and a curing agent such as an isocyanate or a melamine. The compositions are suitable as a primer and provide good adhesion and moisture resistance to metal substrates.

Abstract: A polyurethane coating composition, sprayable onto a substrate by means of conventional spray equipment at pressures of less than about 100 psi and at temperatures of between ambient to about 50° C., in one or more layers to a film thickness of up to about 30 mils, comprises a resin component having hydroxyl functionality, which may be substantially free of amine functionality, an isocyanate functional curing component, an organotin catalyst, and a catalyst inhibiting amount of a volatile organic acid. The composition may optionally include a fibrous reinforcing material, and a colorant. Advantageously, the coating compositions of the present invention provide polyurethane films having excellent physical properties, solvent and UV resistance, and adhesion to clear coated substrates without the need for adhesion promoting primer coats or chemical pretreatments. The compositions are particular useful to form sprayable vehicle bedliners.

Abstract: A method for refinishing a damaged area of a substrate, such as an existing finish on a vehicle which includes the steps of preparing a damaged area for refinishing, by cleaning and/or sanding, providing a multi-component coating composition which includes at least two components having functional groups reactive with each other in a crosslinking reaction and spreading the coating composition onto the area to be refinished using a squeegee applicator.

Abstract: A pigment dispersing polymer comprising a backbone having one or more urea groups and having polymeric side chains extending therefrom. The dispersing polymer may be formed from the reaction of a compound having one or more carbodiimide groups with acid functional resins such as acid functional polyesters, acid functional acrylics, acid functional polyethers, and fatty acids.

Abstract: This invention relates to a curable composition comprising a solvent solution of a mixture comprising: (i) at least one hydroxy-functional acrylic-polymer; and (ii) at least one low molecular weight polyol reactive diluent; (iii) at least one polyisocyanate; (iv) a metal catalyst, such as a tin compound, for accelerating the isocyanate/hydroxyl reaction; and (v) propionic acid.

Abstract: A method for refinishing a damaged area of a substrate, such as an existing finish on a vehicle which includes the steps of preparing a damaged area for refinishing, by cleaning and/or sanding, providing a multi-component coating composition which includes at least two components having functional groups reactive with each other in a crosslinking reaction and spreading the coating composition onto the area to be refinished using a squeegee applicator.

Abstract: This invention relates to a curable composition comprising a solvent solution of a mixture comprising: (i) at least one hydroxy-functional acrylic-polymer; and (ii) at least one low molecular weight polyol reactive diluent; (iii) at least one polyisocyanate; (iv) a metal catalyst, such as a tin compound, for accelerating the isocyanate/hydroxyl reaction; and (v) propionic acid.

Abstract: This invention relates to a curable composition comprising a solvent solution of a mixture comprising:

Abstract: A multi-component curable composition which is reactive upon admixing of the components and which comprises: (i) an acrylic polymer having acetoacetoxy functionality; and (ii) an acetoacetoxy functional derivative of a low molecular weight polyol; and (iii) a crosslinking component comprising at least one imine functional compound having an average of at least two imine groups per molecule which are reactive with acetoacetoxy functionality.