A terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning, containing tourmaline, polyaspartic acid, polyepoxysuccinic acid, polymaleic acid, etidronic acid, zinc salt, and the like, wherein the content of the tourmaline is 5-500 g/t (calculated based on solid form); the content of polyaspartic acid, polyepoxysuccinic acid, polymaleic acid and etidronic acid is 2-60 g/t (calculated based on liquid form); and the content of the zinc salt is 0.2-0.8 g/t (calculated based on solid form), is provided. Also disclosed is a method of preparing the terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning.

The present disclosure relates to methods, systems, hydraulic fluids and additives for reducing the rate of surface current degradation for components in a hydraulic system, wherein the hydraulic system is exposed to phosphate-ester-based hydraulic fluid.

The present disclosure relates to methods, systems, hydraulic fluids and additives for reducing the rate of surface current degradation for components in a hydraulic system, wherein the hydraulic system is exposed to phosphate-ester-based hydraulic fluid.

The invention relates to an additive comprising at least 95 wt. % of a mixture consisting of at least one organic filter filtering UV.sub.A, at least one organic filter filtering UV.sub.B, and from 1 to 50 wt. % of at least one non-volatile oil that is a solvent for said filters. This composition is particularly useful as an agent for protecting the organoleptic properties of a transparent cosmetic composition, against UV radiation.

A stabilizer composition having low volatility and high efficiency comprising: (i.) 25.000% to 99.997% by weight of at least one dimethyltin compound of formula (CH.sub.3).sub.2Sn(S(CH.sub.2).sub.mCOOR.sub.1).sub.2 wherein R.sub.1 is a linear, branched or cyclic C.sub.10-C.sub.20 alkyl group and m is 1 or 2, optionally containing unsaturations in the form of double or triple bonds; (ii.) 0.001% to 50.000% by weight of at least one mono-methyltin compound of formula CH.sub.3Sn(S(CH.sub.2).sub.nCOOR.sub.2).sub.3 wherein R.sub.2 is a linear, branched or cyclic C.sub.10-C.sub.20 alkyl group and n is 1 or 2, optionally containing unsaturations in the form of double or triple bonds; (iii.) 0.001% to 10.000% by weight of at least one tri-methyltin compound of formula (CH.sub.3).sub.3Sn(S(CH.sub.2).sub.pCOOR.sub.3) wherein R.sub.3 is a linear, branched or cyclic C.sub.10-C.sub.20 alkyl group and p is 1 or 2, optionally containing unsaturations in the form of double or triple bonds; and (iv.) 0.001% to 15.000% by weight of at least one thioester of formula HS(CH.sub.2).sub.qCOOR.sub.4 wherein R.sub.4 is a linear, branched or cyclic C.sub.10-C.sub.20 alkyl group and q is 1 or 2, optionally containing unsaturations in the form of double or triple bonds.

A stabilizer composition having low volatility and high efficiency comprising: (i.) 25.000% to 99.997% by weight of at least one dimethyltin compound of formula (CH.sub.3).sub.2Sn(S(CH.sub.2).sub.mCOOR.sub.1).sub.2 wherein R.sub.1 is a linear, branched or cyclic C.sub.10-C.sub.20 alkyl group and m is 1 or 2, optionally containing unsaturations in the form of double or triple bonds; (ii.) 0.001% to 50.000% by weight of at least one mono-methyltin compound of formula CH.sub.3Sn(S(CH.sub.2).sub.nCOOR.sub.2).sub.3 wherein R.sub.2 is a linear, branched or cyclic C.sub.10-C.sub.20 alkyl group and n is 1 or 2, optionally containing unsaturations in the form of double or triple bonds; (iii.) 0.001% to 10.000% by weight of at least one tri-methyltin compound of formula (CH.sub.3).sub.3Sn(S(CH.sub.2).sub.pCOOR.sub.3) wherein R.sub.3 is a linear, branched or cyclic C.sub.10-C.sub.20 alkyl group and p is 1 or 2, optionally containing unsaturations in the form of double or triple bonds; and (iv.) 0.001% to 15.000% by weight of at least one thioester of formula HS(CH.sub.2).sub.qCOOR.sub.4 wherein R.sub.4 is a linear, branched or cyclic C.sub.10-C.sub.20 alkyl group and q is 1 or 2, optionally containing unsaturations in the form of double or triple bonds.

The present invention relates to stabilizers for thiol-ene compositions and to radiation curable thiol-ene compositions based thereon. Such radiation curable compositions can advantageously be used in inks, overprint varnishes, coatings, adhesives, for the making of 3D objects and for the making of solder resist and gel nails. Provided in particular is an inhibitor system (I) for thiol-ene compositions based on at least one inhibitor compound (i) having a % DPPH radical scavenging activity of at least 90%, the inhibitor compound (i) being selected from substituted benzene compounds or substituted naphthalene compounds containing at least two substituents selected from the group consisting of hydroxyl groups and C1-C3 alkoxy groups bonded directly to the benzene or the naphthalene ring, at least one acidic compound (ii) having a pKa between 1 and 3, and at least one compound (iii) selected from the group consisting of phosphites and phosphonites, with the proviso that if the inhibitor compound (i) is a substituted benzene that it contains at least two hydroxyl groups bonded directly to the benzene ring. Also provided is an inhibitor system (II) for thiol-ene compositions based on that is based on at least one inhibitor compound (i) having a % DPPH radical scavenging activity of at least 90%, the inhibitor compound (i) being selected from substituted benzene compounds or substituted naphthalene compounds containing at least two substituents selected from the group consisting of hydroxyl groups and C1-C3 alkoxy groups bonded directly to the benzene or the naphthalene ring, at least one compound (iv) selected from the group consisting of spirophosphites, and optionally, at least one acidic compound (ii) having a pKa between 1 and 3, and with the proviso that if the inhibitor compound (i) is a substituted benzene that it contains at least two hydroxyl groups bonded directly to the benzene ring.

The present disclosure relates to methods, systems, hydraulic fluids and additives for reducing the rate of surface current degradation for components in a hydraulic system, wherein the hydraulic system is exposed to phosphate-ester-based hydraulic fluid.

The present disclosure relates to methods, systems, hydraulic fluids and additives for reducing the rate of surface current degradation for components in a hydraulic system, wherein the hydraulic system is exposed to phosphate-ester-based hydraulic fluid.

Provided is a composition for surface treatment of an Mg-containing galvanized steel sheet comprising a trivalent chromium compound, a carboxylated vinylidene copolymer, and a cross-linking agent. The composition for surface treatment forms a chromium (III) film and is also cross-linked in coating and drying of the surface of a galvanized steel sheet, thereby forming a three-dimensional compact molecular structure. Thus, a galvanized steel sheet coated with the composition has a coating film with high ductility, and can reduce moisture and/or oxygen permeability such that, not only does a worked section have excellent corrosion resistance, but also the occurrence of darkening and/or black dots can be prevented even when exposed to high-temperature and high-humidity environment for a long period of time.