The present disclosure provides a photochromic thermal insulation fiber including a core layer and a sheath layer covering the core layer. The core layer includes about 99 parts by weight to 100 parts by weight of polypropylene and about 0.4 parts by weight to 0.6 parts by weight of a photochromic dye. The sheath layer includes about 98 parts by weight to 99 parts by weight of nylon and about 1 part by weight to 2 parts by weight of a near-infrared reflecting dye.

A method for preparing a polymer composite material is provided. The method includes steps of mixing and heat-treating a first polymer, a second polymer, and a third polymer to obtain a first mixture, adding a light-transmitting material to the first mixture to obtain a second mixture, adding a nano material to the second mixture to obtain a third mixture, performing subsequent processing on the uniformly mixed third mixture to obtain the polymer composite material. The polymer composite material is configured to replace conventional protective glass in ultrasonic fingerprint recognition technology, and to improve accuracy of fingerprint recognition.

A composition for application to a substrate is provided. The composition comprises a base component and an activator component. The base component comprises hydroxyl functional prepolymers and the activator comprises isocyanate prepolymers. The composition further comprises an amount of carbon fibre. The hydroxyl functional prepolymers are formulated to polymerise with the isocyanate prepolymers to form a polymer containing carbon fibre.

A method for producing a master batch having improved properties is provided. The method relates to, in particular, a master batch containing a polycarbonate and a reinforcing filler, preferably selected from one or more members of the group including the members titanium dioxide (TiO.sub.2), talc (Mg.sub.3Si.sub.4O.sub.10(OH).sub.2), dolomite CaMg[CO.sub.3].sub.2, kaolinite Al.sub.4[(OH).sub.8|Si.sub.4O.sub.10] and wollastonite Ca.sub.3[Si.sub.3O.sub.9], preferably selected from one or more members of the group including the members titanium dioxide (TiO.sub.2) and talc (Mg.sub.3Si.sub.4O.sub.10(OH).sub.2). The content of the reinforcing filler is 30 to 70 wt. %, preferably 35 to 65 wt. %, particularly 40 to 60 wt. %, relative to the total weight of the molding compound. A method for producing a molding compound having improved properties is also provided.

The present disclosure relates to a method for manufacturing an ultra-low-temperature, fast-curable epoxy resin and a powder coating composition comprising a resin manufactured thereby and, specifically, to a method for manufacturing an ultra-low-temperature, fast-curable epoxy resin and a powder coating composition comprising a resin manufactured thereby, wherein the epoxy resin is curable in conditions of 110-130° C./10 min and thus can be used even in a material, of which the temperature is difficult to raise or which is sensitive to heat.

An aqueous composition can be used for pre-treating a substrate prior to inkjet printing to provide a white opaque background for inkjet-printed images. This aqueous composition includes: (a) one or more water-soluble salts of a multivalent metal cation at 5-30 weight %; (b) a nonionic or cationic water-soluble or water-dispersible polymeric binder material at 5-30 weight %; and (c) surface-treated visible light-scattering particles having a D.sub.50 (median) particle size of at least 0.04 μm and up to and including 2 μm in an amount of 5-60 weight % based on the total aqueous composition weight. The pre-treated substrate is useful as an inkjet receiving medium that can be readily inkjet-printed particularly with anionically-stabilized aqueous pigment-based inks.

Disclosed is an infill for an artificial turf field, the infill comprising: from about 40 wt. % to about 60 wt. % of a polyvinyl chloride resin; from about 5 wt. % to about 30 wt. % of a plasticizer derived from a naturally occurring source; from about 2 wt. % to about 10 wt. % of a reflective pigment; from about 0.01 wt. % to about 0.1 wt. % of a blowing agent; and from about 5 wt. % to about 30 wt. % of a filler. The infill is pelletized and maintains the temperature of an artificial turf field, when disposed throughout the artificial turf field, at a temperature about 15° F. to about 25° F. less than a temperature of a comparative artificial turf under substantially similar ambient and environmental conditions, wherein a comparative infill of the comparative artificial turf consists essentially of crumbed rubber infill.

The solid content contains a resin component (A) and a filler (B). The resin component (A) includes at least one of a fluorine-containing copolymer (a1) or a silicon-containing copolymer (a2). The fluorine-containing copolymer (a1) includes a fluorine-containing segment and an acrylic segment containing no fluorine or silicon. The silicon-containing copolymer (a2) includes a silicon-containing segment and an acrylic segment containing no fluorine or silicon. The filler (B) has a mean particle size falling within a range from 10 nm to 200 nm.

A preform is made by mixing cyclic olefin copolymer (COC) and light shielding pigment(s) with PET. The preform is stretch-blow moulded to produce a bottle which may be white and opaque. Light may be restricted from entering the bottle to thereby restrict degradation of the bottle contents from certain wavelengths of visible light.

The present disclosure relates to an adhesive film, which includes: a photothermal conversion layer including a light absorbing agent and a pyrolytic resin; a first adhesive layer disposed on the photothermal conversion layer; a base film layer disposed on the first adhesive layer; and a second adhesive layer disposed on the base film layer, and the first adhesive layer and the second adhesive layer include a silicon-based adhesive. The adhesive film according to the present disclosure can simplify a process of processing a substrate, and can prevent a damage of the substrate and a circuit or an element formed on the substrate.