Compounds of formula (I) are photoinitiators or photosensitizers in a photopolymerizable composition: ##STR00001## R.sub.1 represents a monovalent, linear, branched or cyclic, aliphatic hydrocarbon group having 1 to 20 carbon atoms, optionally substituted with substituent(s) selected from —Cl, —Br, —OH, ═O, —NH—CO— OR.sub.2, —NH—CO—R.sub.2 or free-radically or ionically polymerizable groups. Each R.sub.2 is independently —H or C.sub.1-6 alkyl; n is ≥1. If n=1, Z and Y are absent and X represents —OR.sub.3; if n is >1, Z represents —OR.sub.4—, Y represents —ORs— and X represents —H or —OH. R.sub.3 represents —H or R.sub.1; and R.sub.4 and R.sub.5 each independently represent a bivalent hydrocarbon group. The polymerizable moieties as optional substituents of R.sub.1 are polymerizable double or triple bonds, lactam, lactone and epoxide moieties, which are subjectable to ring-opening polymerization; and two of R.sub.1 to R.sub.5 may be linked to one another to form a ring or a dimer.

A photobase generator includes a compound including a first skeleton represented by the following formula (a), and a second skeleton including a nitrogen atom bonding to a bonding position of the first skeleton to form an amide group, wherein the compound generates a base, in which a hydrogen atom is bonding with the nitrogen atom of the second skeleton, by light irradiation, and the pKa of a conjugate acid of the base in water is 12 or more. In formula (a), G is a divalent aromatic group, and * represents the bonding position with the nitrogen atom.

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A two-part curable (adhesive) composition comprising a Part A and a Part B: Part A comprising: (i) a curable (meth)acrylate component; (ii) a peroxide; and (iii) a phenolic lipid; and Part B comprising: (i) a curable (meth)acrylate component; and (ii) a transition metal component. These compositions are tack free, demonstrate good cure through volume and desirable bond strengths on both active and passive substrates. The two-part curable (adhesive) composition can cure across relatively large bond gaps and are non-volatile.

Disclosed are a surface-modified quantum dot, a curable composition including the quantum dot, a cured layer, and a color filter.

The present disclosure relates to a preparation method of a super absorbent polymer composition. More specifically, it relates to a preparation method of a super absorbent polymer composition capable of pulverizing the hydrogel polymer to a normal particle size without agglomeration between particles by adding an additive having a specific structure, reducing manufacturing cost by simultaneously performing a drying process and a surface cross-linking process, and significantly reducing the amount of fine powder generated during the process.

Provide are a curable resin composition containing ITO particles, in which a cured product obtained from the curable resin composition can exhibit high transmittance over a visible light to shortwave infrared wavelength region while maintaining a wavelength dependence of a desired refractive index; a cured product formed of the curable resin composition; and a diffractive optical element and a multilayer diffractive optical element.

A curable resin composition includes particles which have a core-shell structure, in which a core portion is composed of indium tin oxide, a monofunctional or higher (meth)acrylate compound, and a dispersant; a cured product formed of the curable resin composition; and a diffractive optical element and a multilayer diffractive optical element.

A formulation for a photopolymer composite material for a 3D printing system includes an acrylate monomer or an acrylate oligomer, an inorganic hydrate, a reinforcing filler, a co-initiator, a thermal initiator, and an ultraviolet (UV) initiator. In the formulation the acrylate monomer or the acrylate oligomer may be between about 10.0-30.0 w % of the formulation. The thermal initiator may be between about 0.001-0.05 w %, the co-initiator may be between about 0.001-0.05 w %, and the UV initiator may be between about 0.001-0.2 w % of the formulation. A method of generating a formulation of a photopolymer composite material for use in a 3D printing system includes using an acrylate monomer or an acrylate oligomer, an inorganic hydrate, a reinforcing filler, a co-initiator, a thermal initiator, and an ultraviolet (UV) initiator.

A method of bonding a substrate comprising a three-dimensional printed article to another substrate, by activating the three-dimensional printed article is described, thereby facilitating bonding of the two substrates using redox curable adhesives, for example anaerobically curable adhesives.

Disclosed herein are embodiments of a printable composition that can be used to make printed products of a chosen material chemistry that have different levels of porosity within the printed product's structure Also disclosed herein are embodiments of a printed product that has multiple levels of porosity throughout its structure, which can include a macroscale level of porosity, a microscale level of porosity, a nanoscale level of porosity and any combination thereof. These printed products can be made using a 3-D printer and can be made from a single printable composition without the need to add different structural components during the production process. Also disclosed herein are embodiments of a method for making and using a printed product.

To provide a photopolymerizable composition which can be quickly cured by light of from 300 nm to 450 nm, and a cured product of which is less colored. A photopolymerization sensitizer composition containing a compound represented by the following formula (1) and a compound, of which the maximum value of an absorption coefficient in a wavelength region ranging from at least 400 nm to at most 500 nm is higher than the maximum value of an absorption coefficient in a wavelength region ranging from at least 400 nm to at most 500 nm of said compound; and a photopolymerizable composition containing the photopolymerization sensitizer composition. In the formula (1), R.sup.1 is a C.sub.1-20 alkyl group, a C.sub.6-20 aryl group, a C.sub.1-20 alkoxy group or a C.sub.6-20 aryloxy group, and each of X.sup.1 and Y.sup.1 which may be the same or different, is a hydrogen atom or a C.sub.1-8 alkyl group ##STR00001##