Provided is a shaped article having excellent jet blackness and also, by transmitting light with specific wavelength, can display a specific color. The shaped article is a shaped article for which the L* value of reflected light is 35 or less and the total light transmittance is 1% or less, wherein, in a wavelength range of 380 nm or more to 780 nm or less, the wavelength at which the maximum value of light transmittance is exhibited is in a range of 380 nm or more to less than 680 nm, and the expressions T.sub.α≧0.1 % and 0 %≦T.sub.βT.sub.α/2 are satisfied, or, in a wavelength range of 380 nm or more to 780 nm or less, the wavelength at which the maximum value of light transmittance is exhibited is in a range of 680 nm or more to 780 nm or less, and the expressions T.sub.β≧10 % and 0 % T.sub.α≦T.sub.β/2 are satisfied. In the expressions, T.sub.a is the maximum value of light transmittance in a wavelength range of 380 nm or more to less than 680 nm, and T.sub.β is the maximum value of light transmittance in a wavelength range of 680 nm or more to 780 nm or less.

Compounded copolyamide powders, processes for preparation of compounded copolyamide powders, articles made therefrom and uses.

The present disclosure provides a photopolymerizable composition. The photopolymerizable composition includes a) 40-60 parts by weight of a monofunctional (meth)acrylate monomer, per 100 parts of the total photopolymerizable composition; b) a photoinitiator; and c) a polymerization reaction product of components. A cured homopolymer of the monofunctional (meth)acrylate monomer has a glass transition temperature of 125 degrees Celsius or greater. The polymerization reaction product of components includes i) a diisocyanate; ii) a hydroxy functional methacrylate; iii) a polycarbonate diol; and iv) a catalyst. The polymerization reaction product includes a polyurethane methacrylate polymer. Often, the polyurethane methacrylate polymer has a weight average molecular weight of 8,000 g/mol or greater. The present disclosure further provides an article and methods thereof.

A method of forming a three-dimensional object, wherein said three-dimensional object is an insert for use between a helmet and a human body, is described. The method may use a polymerizable liquid, or resin, useful for the production by additive manufacturing of a three-dimensional object, comprising a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from said first component.

A method of forming a three-dimensional object is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from the first component; (c) irradiating the build region with light through the optically transparent member to form a solid polymer scaffold from the first component and also advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, and containing the second solidifiable component carried in the scaffold in unsolidified and/or uncured form; and (d) concurrently with or subsequent to the irradiating step, solidifying and/or curing the second solidifiable component in the three-dimensional intermediate to form the three-dimensional object.

A sensor system comprises a LiDAR unit having an emitter for laser light having a wavelength of 900 nm to 1600 nm and a receiver for light over a wavelength range which is between 800 nm and 1600 nm and at least partly below the operating wavelength of the LiDAR sensor and a cover having a substrate layer made of thermoplastic material which is arranged such that IR light emitted by the LiDAR unit and received by the LiDAR unit passes through the cover.

A sensor system comprises a LiDAR unit having an emitter for laser light having a wavelength of 900 nm to 1600 nm and a receiver for light over a wavelength range which is between 800 nm and 1600 nm and at least partly below the operating wavelength of the LiDAR sensor and a cover having a substrate layer made of thermoplastic material which is arranged such that IR light emitted by the LiDAR unit and received by the LiDAR unit passes through the cover.

Biologically-inspired compositions, including color changing compositions, and corresponding embodiments such as sensors, textile materials, coatings and films, are provided which typically include a solid, transparent and nondegradable matrix. The matrix contains a plurality of (i) synthetic particles having a size in the micrometer or nanometer range, each synthetic particle including one or more aggregates of a pigment selected from phenoxazone, phenoxazine, and a derivate or precursor thereof, and a stabilizing material which has a refractive index larger than 1.45, the aggregates having a size larger than about 100 nm; or (ii) submicrometer natural particles extracted and purified from homogenized tissue.

Provided are a wavelength selective absorption filter containing a resin and a dye A, which has a main absorption wavelength band in the wavelength selective absorption filter at a wavelength of 400 to 450 nm, and a dye C, which has a main absorption wavelength band in the wavelength selective absorption filter at a wavelength of 560 to 600 nm, each of which has a main absorption wavelength band in a different wavelength range, as well as a polarizing plate and an organic electroluminescent display device or liquid crystal display device, which include the wavelength selective absorption filter. However, the dye A and the dye C do not have fluorescence.

A resin composition includes: a compound represented by Formula (1); and a resin, in the formula, A and B each independently represent an aromatic hydrocarbon ring or an aromatic heterocycle, Ra and Rb each independently represent a substituent, m1 represents an integer of 0 to mA, m2 represents an integer of 0 to mB, Y.sup.1 and Y.sup.2 each independently represent an alkyl group, an aryl group, a group represented by Formula (Y-1), or a group represented by Formula (Y-2), and at least one of Y.sup.1 or Y.sup.2 represents a group represented by Formula (Y-1) or a group represented by Formula (Y-2). ##STR00001##