Disclosed are triazine compounds of formula (I): ##STR00001##
wherein X, R, A and B are as defined in the description as photostabilizing agents against UV-visible radiation.

The present invention relates to a triazine precondensate according to the general formula (I) where R.sub.1 means Q.sup.1 or a moiety of the formula R.sub.3NR.sub.4 connected with the nitrogen atom to the triazine ring of the structure of formula (I), where R.sub.9 means Q.sup.1 or a moiety of the formula R.sub.7NR.sub.8 connected with the nitrogen atom to the triazine ring of the structure of formula (I), where R.sub.2, R.sub.3, R.sub.4 and R.sub.6 mean independently from each other H, Q.sup.1 or (i), R.sub.7 and R.sub.8 mean independently from each other H, Q.sup.1, (ii) or (iii) or (i), R.sub.10 and R.sub.11 mean independently from each other R.sub.7 or R.sub.8; R.sub.5 means linear or branched C.sub.2-C.sub.20-alkyl that can be interrupted by one or more oxygen atoms, sulphur atoms, substituted or non-substituted nitrogen atoms.

The present invention relates to a triazine precondensate according to the general formula (I) where R.sub.1 means Q.sup.1 or a moiety of the formula R.sub.3NR.sub.4 connected with the nitrogen atom to the triazine ring of the structure of formula (I), where R.sub.9 means Q.sup.1 or a moiety of the formula R.sub.7NR.sub.8 connected with the nitrogen atom to the triazine ring of the structure of formula (I), where R.sub.2, R.sub.3, R.sub.4 and R.sub.6 mean independently from each other H, Q.sup.1 or (i), R.sub.7 and R.sub.8 mean independently from each other H, Q.sup.1, (ii) or (iii) or (i), R.sub.10 and R.sub.11 mean independently from each other R.sub.7 or R.sub.8; R.sub.5 means linear or branched C.sub.2-C.sub.20-alkyl that can be interrupted by one or more oxygen atoms, sulphur atoms, substituted or non-substituted nitrogen atoms.

A surface treatment agent including a compound () is provided. The compound () has one or more M-OH groups and/or groups capable of forming M-OH (wherein M represents a metal atom), an amino group and a triazine ring; wherein said amino group is bonded to a terminal; one or more said amino groups bonded to the terminal are present; and one or more said triazine rings are present.

A surface treatment agent including a compound () is provided. The compound () has one or more M-OH groups and/or groups capable of forming M-OH (wherein M represents a metal atom), an amino group and a triazine ring; wherein said amino group is bonded to a terminal; one or more said amino groups bonded to the terminal are present; and one or more said triazine rings are present.

A curable composition that can contain a high concentration of a heterocyclic compound (A) having a triazine ring as a component which gives a cured product exhibiting a high refractive index, surface without defects such as roughness or cracks, and is unlikely to have cracks occurring on the surface thereof even when exposed to a high-temperature and high-humidity environment, a cured product of the curable composition, and a compound that may be blended to the curable composition. As a component of the composition, a triazine compound having a structure in which an optionally substituted monocyclic aromatic group(s) or an optionally substituted condensed aromatic group(s) is/are bonded to the triazine ring via an amino group, and, as a solvent, triethylene glycol dimethyl ether are used in combination.

Surface-modified nanoparticles are produced by associating ligand interactive agents with the surface of a nanoparticle. The ligand interactive agents are bound to surface modifying ligands that are tailored to impart particular solubility and/or compatibility properties. The ligand interactive agents are crosslinked via a linking/crosslinking agent, such as hexamethoxymethylmelamine or a derivative thereof. The linking/crosslinking agent may provide a binding site for binding the surface modifying ligands to the ligand interactive agents.

Surface-modified nanoparticles are produced by associating ligand interactive agents with the surface of a nanoparticle. The ligand interactive agents are bound to surface modifying ligands that are tailored to impart particular solubility and/or compatibility properties. The ligand interactive agents are crosslinked via a linking/crosslinking agent, such as hexamethoxymethylmelamine or a derivative thereof. The linking/crosslinking agent may provide a binding site for binding the surface modifying ligands to the ligand interactive agents.

The invention relates to novel fluorescent whitening agents, compositions or mixtures thereof with known fluorescent whitening agents, their preparation, and their use. The novel fluorescent whitening agents contain three structural subunits derived from 4,4-diamino-2,2-stilbenedisulfonic acid. The novel compounds and their mixtures with known FWAs show very good effectiveness as fluorescent whitening agents for cellulosic materials, in particular for paper.

Novel tris-substituted biguanide compounds are made by reaction of sodium dicyanamide with a trifunctional primary amine followed by reaction with anilines. The tris-substituted biguanide compounds are potent biocide and useful as a disinfectant. The novel compounds have biocidal activity comparable to those of widely used chlorhexidine with respect to width of antibacterial spectrum and in immediate effectiveness. The novel tris-substituted biguanide compounds can also be used for cleaning wounds, preventing dental plaque, treating yeast infections of the mouth, and to keep urinary catheters from blocking, These novel compounds have superior aqueous solubility and bioavailability and have potent antibacterial activity especially against A. baumanni and K. pneumonia.