A novel compound excellent in heat resistance, resistance to volatilization, and compatibility with a resin component and useful as a UV absorber and a synthetic resin composition containing the compound are provided. Specifically provided are a triazine compound of general formula (1), preferably general formula (2) and a synthetic resin composition containing 0.001 to 20 parts by mass of the compound per 100 parts by mass of a synthetic resin. The details of formulae (1) and (2) are as defined in the description.

##STR00001##

A novel compound excellent in heat resistance, resistance to volatilization, and compatibility with a resin component and useful as a UV absorber and a synthetic resin composition containing the compound are provided. Specifically provided are a triazine compound of general formula (1), preferably general formula (2) and a synthetic resin composition containing 0.001 to 20 parts by mass of the compound per 100 parts by mass of a synthetic resin. The details of formulae (1) and (2) are as defined in the description.

##STR00001##

Provided is a pressure-sensitive adhesive sheet that can temporarily fix an adherend in a peelable manner, the pressure-sensitive adhesive sheet being free from requiring high-output laser light irradiation at the time of the peeling of the adherend. The pressure-sensitive adhesive sheet of the present invention includes a pressure-sensitive adhesive layer containing a UV absorber, wherein the pressure-sensitive adhesive layer has a first surface and a second surface opposed to the first surface, and wherein a maximum value S1 of a detection intensity of the UV absorber by time-of-flight secondary ion mass spectrometry (TOF-SIMS) in a range of from the first surface to a depth of 1 μm in a thickness direction and a detection intensity C of the UV absorber by the TOF-SIMS at a center point in the thickness direction of the pressure-sensitive adhesive layer satisfy a relationship: S1/C≥1.1.

Provided is a pressure-sensitive adhesive sheet that can temporarily fix an adherend in a peelable manner, the pressure-sensitive adhesive sheet being free from requiring high-output laser light irradiation at the time of the peeling of the adherend. The pressure-sensitive adhesive sheet of the present invention includes a pressure-sensitive adhesive layer containing a UV absorber, wherein the pressure-sensitive adhesive layer has a first surface and a second surface opposed to the first surface, and wherein a maximum value S1 of a detection intensity of the UV absorber by time-of-flight secondary ion mass spectrometry (TOF-SIMS) in a range of from the first surface to a depth of 1 μm in a thickness direction and a detection intensity C of the UV absorber by the TOF-SIMS at a center point in the thickness direction of the pressure-sensitive adhesive layer satisfy a relationship: S1/C≥1.1.

To improve an optical film containing a polyimide-based polymer and the like and used for a front plate of a flexible device member, in terms of improvement of hygroscopic characteristics and achievement of high transparency, less coloring, and satisfactory ultraviolet absorption. Disclosed is an optical film containing a polyimide-based polymer and/or polyamide and an ultraviolet absorbent. A light transmittance of the optical film is not more than 5% at 380 nm and not less than 80% at 420 nm.

To improve an optical film containing a polyimide-based polymer and the like and used for a front plate of a flexible device member, in terms of improvement of hygroscopic characteristics and achievement of high transparency, less coloring, and satisfactory ultraviolet absorption. Disclosed is an optical film containing a polyimide-based polymer and/or polyamide and an ultraviolet absorbent. A light transmittance of the optical film is not more than 5% at 380 nm and not less than 80% at 420 nm.

To improve an optical film containing a polyimide-based polymer and the like and used for a front plate of a flexible device member, in terms of improvement of hygroscopic characteristics and achievement of high transparency, less coloring, and satisfactory ultraviolet absorption. Disclosed is an optical film containing a polyimide-based polymer and/or polyamide and an ultraviolet absorbent. A light transmittance of the optical film is not more than 5% at 380 nm and not less than 80% at 420 nm.

A polyester is formed by reacting a plurality of monomers. The monomers include 7 to 20 parts by mole of (a) aliphatic triol monomer, 40 to 80 parts by mole of (b) first diol monomer, 12 to 40 parts by mole of (c) second diol monomer, and 100 parts by mole of (d) aliphatic diacid monomer or aliphatic anhydride monomer. The (b) first diol monomer has a chemical structure of

##STR00001##

wherein each R.sup.1 is the same. The (c) second diol monomer has a chemical structure of

##STR00002##

wherein R.sup.6 is different from R.sup.7.

Described herein are fluoropolymer compositions comprising a compound of Formula I wherein X.sup.1 is selected from O or S; L is a divalent linking group comprising at least one aromatic ring; and X.sup.2 is selected from the group consisting of a hydroxyl group, an amino group, a thiol group, and a nitrile group. In one embodiment, the phthalonitrile-containing compound is used to crosslink a dehydrohalogenated polymer, and optionally with a polyhydroxy curative. In another embodiment, the phthalonitrile-containing compound is added to a composition comprising (i) a fluorinated elastomeric gum, wherein the fluorinated elastomeric gum comprises a fluoropolymer having a cure-site and (ii) a peroxide curing system. ##STR00001##

There is described an aqueous coating composition, the aqueous coating composition comprising an acrylic polyester resin, obtainable by grafting an acrylic polymer and a polyester material, the polyester material being obtainable by polymerizing: (i) a polyacid component, with (ii) a polyol component. At least one of the polyacid component and/or the polyol component comprises a functional monomer operable to impart functionality on to the polyester resin, such that an acrylic polymer may be grafted with the polyester material via the use of said functionality. The coating composition further containing a crosslinking material, wherein the crosslinking material comprises material according to formula (I); as shown in claim 1; wherein R.sub.1 is selected from aryl (such as C.sub.4 to C.sub.24 aryl), or aralkyl (such as C.sub.5 to C.sub.25 aralkyl); R.sub.2 to R.sub.5 are each independently hydrogen, alkyl (such as C.sub.1 to C.sub.20 alkyl), aryl (such as C.sub.4 to C.sub.24 aryl), aralkyl (such as C.sub.5 to C.sub.25 aralkyl) or —CHR.sub.8OR.sub.9;

wherein R.sub.8 and R.sub.9 are each independently hydrogen, alkyl (such as C.sub.1 to C.sub.20 alkyl), aryl (such as C.sub.4 to C.sub.24 aryl), aralkyl (such as C.sub.5 to C.sub.25 aralkyl), alkoxyalkyl (such as C.sub.2 to C.sub.40 alkoxyalkyl) or an alkaryl (such as C.sub.5 to C.sub.25 alkaryl);
wherein at least one of R.sub.2 to R.sub.5, is —CHR.sub.8OR.sub.9, suitably all of R.sub.2 to R.sub.5, are —CHR.sub.8OR.sub.9.