89results about How to "High gloss retention" patented technology

The composition of the invented nano composite latex paint comprises (wt%) 0.3-1% of moistening dipersant, 2-70% of nano pulp, 1-4% of film-forming adjuvant, 0.5-2% of anti-sedimentation agent, 0.8-15% of antifreeze agent, 0.5-3% of defoaming agent, 5-30% of pigment, 0-30% of filling material, 10-45% of emulsion, 0.2-2% of thickening agent, 0.2-2% of leveling agent, 0-2% of pH regulating agent, 0-2% of microbiocide and 2-35% of water. Its preparation method includes two steps: firstly, preparing dispersion stable nano material pulp, then adding said nano material pulp into the latex component according to a certain process so as to obtain the invented high-performance product.

Disclosed is an article having reduced susceptibility to mar and scratch formation during abrasion of its surface, wherein the article is derived from a composition comprising: (i) at least one rubber modified thermoplastic resin; (ii) a second rigid thermoplastic polymer present in a range of between about 10 wt. % and about 80 wt. %, based on the weight of resinous components in the composition; and (iii) at least one additive selected from the group consisting of (a) a silicone oil and (b) a hydrocarbon wax, said additive being present in an amount in a range of about 0.3 parts per hundred parts resin (phr) to about 3 phr.

The invention discloses a water-based transparent colored paint for wooden ware and a preparation method of the paint. The water-based transparent colored paint is applied to decoration of the surface of a wood material (cabinets, tables, chairs, chair rails and the like). The water-based transparent colored paint comprises components including water-based emulsion / dispersoid, a water-based color concentrate, pure water, a film forming aid, a wetting dispersant, a foam killer, a flatting agent, a bactericide, a mildew preventive, an anti-freezing agent, a thickening agent, a multi-functional additive, a matting agent and wax emulsion. The water-based transparent colored paint for the wooden ware is bright in color and clear in texture and has the effects of greatly reducing the content of VOC, guaranteeing the application performance of the product and realizing the environmental protection characteristics of the product.

The invention discloses a weather resistance powder coating, comprising the following components: 35%-45% of hydroxylated acrylic resin with a hydroxyl value of 35-45mg / a, 30%-35% of terminal carboxy polyester resin with a acid value of 60-70mg KOH / g, 3%-5% of tetramethoxy methyl glycoluril, 0.5%-1.3% of acrylic type flatting agent, 20%-30% of barium sulfate, and 0.5%-1.5% of benzoin. The weather resistance of the powder coating of the invention is greatly improved, 480h QUV-B(accelerated photo-ageing test) gloss retention of the powder coating is increased from 50% which is the gloss retention of the traditional polyester powder coating to 95% so that the outdoor high weather resistance coating requirements can be satisfied; the cost of the invention is lower than that of fluorocarbon resin powder coating and organosilicon resin powder coating (the cost can be reduced by about 50%).

The invention discloses a powder coating containing modified sepiolite powder and a preparing method thereof. The powder coating containing the modified sepiolite powder is composed of raw materials comprising modified epoxy resin, bisphenol S epoxy resin, linear low density polyethylene resin, modified sepiolite powder, polyethylene wax, film forming resin, polydimethylsiloxane, benzoin, silver powder, acrylic resin, superfine talcum powder, hexamine, 2,6-di-tert-butyl-4- dimethylamino methyl) phenol, n-butyl methacrylate and polyacrylamide. The powder coating is a green and environment-friendly coating, nontoxic and heat-resistant, contains no solvent, and discharges no volatile organic compound (VOC), and furthermore the modified sepiolite added in the powder coating enhances compatibility of the modified epoxy resin, the bisphenol S epoxy resin and the linear low density polyethylene resin, improves surface leveling of the powder coating, has high gloss retention, and enhances decorating performance of the powder coating, and therefore, an obtained finished product is high in pass percent, and industrialization mass production can be achieved.

A nano-class composite polyurethane paint for airplane is composed of the modified synthetic resin and the solidifying agent. Said modified synthetic resin is prepared through sequentially adding nano slurry, solvent, assistant and pigment to synthetic resin, grinding and filtering. It is applied through mixing said modified synthetic resin with said solidifying agent to obtain paint, spraying antirust paint, and spraying said paint. Its advantage is high weatherability.

The invention discloses an energy-saving and an environment-friendly powder coating and a preparation method thereof. The energy-saving and an environment-friendly powder coating comprises the following composition raw materials: modified epoxy resin, high-density polyethylene resin, an organosilicone levelling agent, film-forming resin, polydimethylsiloxane, fatty amine, zinc powder, methacrylic resin, nanoscale titanium dioxide, 4,4'-diamido-diphenyl sulphone, resorcinol, bis-tetradecyl alcohol ester and chlorcosane. The powder coating disclosed by the invention is a green and environment-friendly coating which is non-toxic, is high-temperature-resistant, does not contain a solvent and is free from VOC (volatile organic compounds) discharge, and the powder coating disclosed by the invention is strong in surface levelling property and high in gloss retention, thus decoration property is improved; and the prepared finished product is high in pass percent, and capable of realizing industrialized mass production.

The invention discloses a pure polyester resin for TGIC cured high temperature resistant powder coatings. The acid value, the glass transition temperature, the softening point and the 200DEG C melt viscosity of the pure polyester resin are 30-35mgKOH / g, 70-78DEG C, 112-118DEG C and 15000-20000mPa.s respectively. The pure polyester resin is obtained through a melt condensation polymerization reaction of monomers comprising 33-38mass% of diol, 58-65mass% of aromatic dibasic acid, and 1.5-5mass% of polyol. The invention also discloses a preparation method of the pure polyester resin. The pure polyester resin has a high glass transition temperature and is suitable for a TGIC curing system, and powder coatings prepared by using the pure polyester resin have the advantages of excellent heat resistance, and no gloss loss and high gloss retention of coating layers baked at 270DEG C for 2h or baked at 300DEG C for 0.5h.

The invention discloses a powder coating containing modified attapulgite and a preparation method of the powder coating. The powder coating consists of the following raw materials: modified epoxy resin, epoxidation polybutadiene resin, linear low-density polyethylene resin, modified attapulgite, polyethylene wax powder, film-forming resin, polydimethylsiloxane, high pigment carbon black, methacrylic acid resin, nanosilicon dioxide, triethylene tetramine, antioxygen DLTP (Dilauryl thiodipropionate), diphenylamine and trioctyl trimellitate. The powder coating is a green and environmental-friendly coating, has no toxicity, has high-temperature resistance, contains no solvent and has no VOC (Volatile Organic Compounds) emission; and furthermore, the modified attapulgite is added in the powder coating, so that the compatibility of the modified epoxy resin, the epoxidation polybutadiene resin and the linear low-density polyethylene resin is enhanced, the surface leveling of the powder coating is improved, the powder coating has the advantage of high gloss retention and the decorative property of the powder coating is enhanced; and the qualified rate of the finished product obtained by preparing is high and the industrial mass production can be realized.

The invention discloses a powder coating containing modified tree ash and a preparation method of the powder coating. The powder coating consists of the following raw materials: modified epoxy resin, low-density polyethylene resin, phenolic resin, modified tree ash, organosilicone leveling agent, film-forming resin, polydimethylsiloxane, aliphatic amine, silver powder, acrylic resin, ultra-fine calcium carbonate, hexamethylenetetramine, catechol and simethicone. The powder coating is a green and environmental-friendly coating, has no toxicity, has high-temperature resistance, contains no solvent and has no VOC (Volatile Organic Compounds) emission; and furthermore, the modified tree ash is added in the powder coating, so that the compatibility of the modified epoxy resin, the low-density polyethylene resin and the phenolic resin is enhanced, the surface leveling of the powder coating is improved, the powder coating has the advantage of high gloss retention and the decorative property of the powder coating is enhanced; and the qualified rate of the finished product obtained by preparing is high and the industrial mass production can be realized.

The invention discloses a compound functional agricultural machinery finishing powder coating and a production process thereof. The powder coating comprises the following components in parts by weight: 2-8 parts of a polyester / acrylic resin compound, 30-50 parts of polyester resin, 12-22 parts of epoxy modified acrylic resin, 20-35 parts of nano glass powder, 1-5 parts of a cross-linking agent and 1-2.5 parts of an assistant. A supercritical carbon dioxide fluid method is adopted in the production process. The powder coating is corrosion-proof, rust-proof and excellent in weather resistance, the production process of the powder coating is low in energy consumption and high in efficiency, and the production processing temperature is reduced.

The invention discloses a water-based inorganic synthetic fluid coat. Calcite powder, heavy calcium carbonate powder, light calcium carbonate powder and sierozem powder are taken as the base material; and powdery mixture of water-soluble methylcellulose, ethyecellulose and hydroxypropyl methyl cellulose is taken as the filling material of the water-soluble glue of the solid powder. The water-based inorganic synthetic fluid coat is characterized in that the base mailer thereof further comprises anatase white powder, mica powder and wollastonite. The filling material of the water-based inorganic synthetic fluid coat further comprises hydroxypropyl methyl cellulose, polyacrylamide and water-based nanometer material. The invention has the benefit effects of changing the professional and single construction mode, being convenient for 'DIY' self-actuated operation of the user, adjusting the diversified structure of the product, improving the synthesis function of the product, and being good for 'environmental protection' and 'functionality'.

The invention relates to a one-component polyurethane skirt coating used for automotive. The coating is made by the following steps: uniformly mixing polyol, blocked isocyanate, catalyst, thixotropic agent, water absorbent, inorganic filler and pigment in a kneading machine, and further dispersing the mixture by a three-roller grinder. The coating solves the problem of poor decorative effect whenthe existing PVC (polyvinyl chloride) stone strike prevention material is applied in the front of a vehicle, at the lower part of a door, and at the threshold or other parts. The preparation method is easy, the use is convenient, the adhesion force is high, the resistance to stone strike is excellent and the storage stability is fine. The surface of the coating obtained is flat, fine and smooth and the gloss retention is greater than 85%. The coating is superior to the PVC stone strike prevention coating in tensile strength and elongation at break. The light fastness and weather fastness of the coating are greatly improved. Therefore, the coating can satisfy the decoration requirement of middle and top-grade cars for high skirt.

The invention relates to the technical field of gloss oil, and in particular relates to anti-permeable UV silk printing paper gloss oil and a preparation method of the anti-permeable UV silk printing paper gloss oil. The anti-permeable UV silk printing paper gloss oil is prepared from the following components in parts by weight: 40-60 parts of acrylic resin, 15-25 parts of acrylic monomer, 8-12 parts of a photoinitiator, 2-4 parts of an organic polymeric delustering agent, and 0.5-4 parts of an assistant; the preparation method comprises the following steps: a. pre-dispersing the acrylic monomer and the organic polymeric delustering agent in a mixing pot in parts by weight, and uniformly mixing; b. continuously adding the acrylic resin, the photoinitiator and the assistant in the mixing pot in parts by weight and mixing uniformly to prepare oil; and c. filtering the oil. The anti-permeable UV silk printing paper gloss oil can achieve good anti-permeable effect, low thixotropic behavior, low influence on glossiness, excellent adhesive force, high fullness and the like, and has wide applicability.

The invention discloses a matt weather-resistant powder coating and a preparation method thereof. The matt weather-resistant powder coating comprises the following components in parts by weight: 49-49.9 parts of first power, 49-49.9 parts of second powder and 0.2-2 parts of aluminum oxide, and the mass ratio of the first powder to the second powder is 1: 1. The preparation method of the coating comprises the following steps: step 1, preparing the first powder; step 2, preparing the second powder; and step 3, mixing the first powder, the second powder and the aluminum oxide in a preset ratio toobtain the product. According to the matt high weather-resistant powder coating disclosed by the invention, the effects of matt, good curing performance and excellent weather resistance are achievedby mixing the first powder with the second powder in proportion.

Compositions comprising (B1) at least one polyisocyanate-group-containing compound (B1) having free or blocked isocyanate groups and a cycloaliphatic polyisocyanate parent structure, and / or a polyisocyanate derived therefrom, and (B2) at least one polyisocyanate-group-containing compound (B2) having free or blocked isocyanate groups and an acyclic, aliphatic polyisocyanate parent structure, and / or a polyisocyanate derived therefrom, where at least one of component (B1) and component (B2) comprise at least one structural unit selected from the group of structural unit (I)—NR—(X—SiR″x(OR′)3-x)  (I),structural unit (II)—N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m  (II),and mixtures of two or more of the foregoing, wherein the compound (B1) is in an amount such that the binder fraction of the compound (B1) is between 5% and 45% by weight, based on the sum of the binder fraction of the compound (B1) and of the compound (B2), and the mixture of components (B1) and (B2) includes structural units (I) and structural units (II).

Described are nonaqueous coating material compositions comprising (A) at least one polyhydroxyl group-containing compound, (B) at least one polyisocyanate group-containing compound having free or blocked isocyanate groups, (D) at least one catalyst (D) based on a zinc-amidine complex which is preparable by reacting one or more zinc(II) biscarboxylates with an amidine of the formula (I) or with a mixture of two or more amidines of the formula (I)and (S) at least one monomeric aromatic optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a π-electron system, wherein the component (B) comprises at least one structural unit —NR—(X—SiR″x(OR′)3-x) (II), and / or at least one structural unit —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (III). Also described are multistage coating methods, and the use of the coating material compositions.

The invention provides a waterborne anticorrosive coating, which is prepared from the following raw materials in parts by weight: 5-8 parts of hydrophilic modified fatty group polyisocyanate curing agent, 100-120 parts of waterborne resin, 0.05-0.1 part of flatting agent, 1-10 parts of wetting agent, 1-3 parts of thickening agent, 0.2-1 part of antifoaming agent, 2-5 parts of film forming auxiliary agent, 20-30 parts of corrosion inhibitor, 15-30 parts of pigment filler, 0.02-1.0 part of catalyst and 20-40 parts of deionized water. The invention also provides a preparation method for the waterborne anticorrosive coating. The waterborne anticorrosive coating has higher film hardness, gloss and a contact angle with water after the film is sprayed, and the waterborne anticorrosive coating can be used in the traditional application fields of conventional solvent type polyurethane coating, wherein the traditional application fields include high-performance technical fields including automobiles, woodware, industrial maintenance, plastic and wind turbine blades, solar cells and the like.

The invention belongs to the technical field of organic macromolecular compounds and in particular relates to polyester resin for high-temperature-resisting powdered paint and a preparation method of the polyester resin. The polyester resin is prepared from the following raw materials in parts by weight: 15 to 40 parts of neopentyl glycol, 2 to 10 parts of 1,2-propylene glycol, 2 to 10 parts of 2-methyl-1,3-propylene glycol, 35 to 45 parts of terephthalic acid, 10 to 25 parts of m-phthalic acid, 2 to 7 parts of hexanedioic acid, 35 to 80 parts of trimethylol propane, 40 to 70 parts of trimethylol ethane, 0.5 to 2 parts of tri(2-ethoxyl)isocyanurate, 1 to 3 parts of a catalyst, 0.3 to 0.8 part of an antioxygen and 0.2 to 0.7 part of an accelerant. The polyester resin provided by the invention has proper glass transition temperature and viscosity and the prepared powdered paint has excellent heat resistance and mechanical properties and good water boiling resistance; under the conditions that the polyester resin is baked at 270 DEG C for 6h or is baked at 300 DEG C for 1h, a coating basically does not lose light; the polyester resin has relatively high luster retention ratio.

The invention discloses a powder coating with low molecular weight bisphenol S type epoxy resin as a main material and a preparation method thereof. The powder coating comprises the following raw materials by weight part: 40-50 of low molecular weight bisphenol S type epoxy resin, 30-50 of phenolic resin, 70-80 of isotactic polypropylene resin, 10-15 of titanium dioxide, 2-5 of activated carbon powder, 3-5 of bismuth trioxide, 5-7 of mica powder, 2-4 of urotropine and 3.3-3.8 of a film forming agent. The powder coating provided in the invention adopts the low molecular weight bisphenol S type epoxy resin as the main raw material, and the mica powder and the film forming agent are added to enhance the mixing property among the raw materials. Meanwhile, the surface leveling of the powder coating is improved. With high gloss retention, the powder coating has improved decorative property. And the prepared product has a high qualified rate.

The invention discloses a lanthanum oxide containing powder coating and a preparation method thereof. The powder coating comprises the following raw materials by weight: 40-50 of saturated polyester resin, 45-50 of polybutylene terephthalate, 65-70 of polytetrafluoroethylene, 40-50 of alumina, 23-28 of silica gel powder, 20-25 of talcum powder, 3.5-4.5 of lanthanum oxide, 9-11 of activated carbon powder, 2.5-3.5 of fatty alcohol-polyoxyethylene ether and 2.5-3.5 of a film forming agent. The powder coating provided in the invention adopts saturated polyester resin and polybutylene terephthalate as main raw materials, and lanthanum oxide, activated carbon powder and the film forming agent are added to enhance the mixing property among each raw material. At the same time, the surface leveling of the powder coating is improved. With high gloss retention, the powder coating has improved decorative property. And the prepared product has a high qualified rate.

The invention discloses a low-temperature shock-resistant fluorocarbon finishing paint for bridges and a preparation method thereof. The finishing paint is composed of a component A and a component B, wherein the component A comprises the following components in parts by weight: 54-56 parts of trifluoro FEVE resin, 0-14 parts of diluter, 2.2-2.4 parts of dispersing agent, 25.5-29.8 parts of titanium white, 0.8-1.2 parts of thixotropic agent, 0.4-0.6 part of leveling agent, 0.8-1.2 parts of anti-ultraviolet absorbent and 0.3-0.8 part of silane coupling agent; the component B comprises the following components in parts by weight: 50 parts of isocyanate curing agent and 50 parts of diluter; and the weight ratio of the component A to the component B is 5:1. The paint can still have very high impact resistance at low temperature (-40 DEG C), has high glossiness and high gloss retention, and can be used as a bridge paint for cold areas.

The invention provides a waterborne flame-retardant antirust paint and a preparation method thereof and belongs to the field of paint preparation technology. The paint is prepared from the following raw materials (by weight): 30-40 parts of acrylate modified alkyd resin, 20-25 parts of rosin phenolic resin, 5-8 parts of epoxy resin, 11-15 parts of a styrene-acrylic emulsion, 20-30 parts of water, 18-25 parts of a fire retardant, 0.2-0.4 part of anionic sodium alkyl succinate, 0.2-0.4 part of a silanol wetting agent, 1-3 parts of sodium bentonite, 1-1.5 parts of an antirust agent, 2-3 parts of a curing agent, 0.6-0.75 part of a pH regulator, 0.2-0.6 part of an antifoaming agent, 0.2-0.3 part of a leveling agent, and 3-4 parts of a cosolvent. The flame retardant is a magnesium-aluminum hydrotalcite hyper-branched fire retardant. The paint of the invention has good antirust and waterproof properties, and has strong adhesion and high hardness. After the magnesium-aluminum hydrotalcite hyper-branched fire retardant is added into the paint, fire resistance of the paint can be improved.

The invention discloses powdery paint containing nano-attapulgite and a preparation method thereof. The powder paint comprises the following raw materials: an epoxidized polybutadiene resin, a rosin resin, nano-attapulgite, polyethylene glycol, dimethylimidazole, bronze red pwder, hollow glass beads, ultramicro-wax-powder, isooctyl polyethenoxy ether, an anti-oxidant 565, tributyl citrate, chitosan, and a film forming resin. The powder paint provided by the invention is green environment-friendly type paint, and has the characteristics of nontoxicity, high temperature resistance, no solvent contained, and no VOC emission; by adopting an epoxidized polybutadiene resin as a main raw material and adding in a film-forming resin and nano-attapulgite, the film-forming ability of the powder paint is enhanced, the surface levelling property of the powder paint is improved, high gloss retention is achieved, and the decorative quality of the powder paint is improved; and qualified rates of prepared finished products are high, and industrialized mass production can be realized.

The invention discloses a fluorocarbon powder coating for outdoor iron towers, and a preparation method thereof. The fluorocarbon powder coating is prepared from, by weight, 35-45 parts of polyvinylidene fluoride resin, 8-12 parts of polytetrafluoroethylene resin, 12-16 parts of super weather-proof polyester resin, 20-30 parts of cycloaliphatic epoxy resin, 12-18 parts of acrylic resin, 12-18 parts of epoxy modified alkyd resin, 2-5 parts of polyhexamethylene guanidine, 3-6 parts of modified graphene, 6-10 parts of nano-silica, 0.5-3 parts of nano-alumina, 4-10 parts of barium sulfate, 1.8-2.4parts of silane coupling agent KH-792, 0.2-0.4 part of calcium stearate, 0.3-0.5 part of benzoin, 0.5-1 part of a leveling agent and 4-8 parts of a TGIC curing agent. The fluorocarbon powder coatinghas the advantages of excellent mechanical properties and super strong weather resistance, super strong chemical resistance and super strong leveling property, and has the characteristics of crackingresistance, aging resistance and long service life when applied to outdoor iron towers, and the preparation method is simple, and can achieve industrial production.

Described are nonaqueous coating material compositions comprising (A) at least one polyhydroxyl group-containing compound, (B) at least one polyisocyanate group-containing compound having free or blocked isocyanate groups, (D) at least one catalyst (D) based on a zinc-amidine complex which is preparable by reacting one or more zinc(II) biscarboxylates with an amidine of the formula (I) or with a mixture of two or more amidines of the formula (I)and (S) at least one monomeric aromatic optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a π-electron system, wherein the component (B) comprises at least one structural unit —NR—(X—SiR″x(OR′)3-x) (II), and / or at least one structural unit —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (III). Also described are multistage coating methods, and the use of the coating material compositions.

The invention discloses long-term anti-yellowing polyester resin as well as a preparation method and application thereof. The method comprises the following steps: mixing and performing condensation polymerization on one part of polyatomic acid, polyatomic alcohol, an esterification catalyst and a polymerization inhibitor, so as to obtain a first reaction system with the acid value being 10 to 18mg KOH / g; mixing the other part of the polyatomic acid and the first reaction system and performing transesterification, so as to obtain a second reaction system with the acid value being 48 to 56 mgKOH / g; performing vacuumizing condensation polymerization on the second reaction system, so as to obtain a third reaction system with the acid value being 28 to 35 mg KOH / g and the viscosity being 5000 to 15000 mPa.s; mixing the third reaction system and an antioxidant, and cooling and discharging, so as to obtain the long-term anti-yellowing polyester resin. Through the adoption of the method, the polyester resin with long-term anti-yellowing property can be obtained, is used for preparing white system powder coating, and has a wide application prospect in the field of white household appliances.

The invention relates to a building outer wall multifunctional thin heat insulation material. The material comprises a component A and a component B, wherein the component A is prepared from 10-20 parts by mass of sodium silicate, 10-20 parts by mass of potassium silicate, 0.05-0.5 part by mass of a surfactant, 0.1-1 part by mass of a pH regulator, 0.1-0.5 part by mass of a reducing agent, 0.1-2 parts by mass of a reaction promoter, 0.01-0.5 part by mass of an anti-freezing agent and 40-55 parts by mass of deionized water; and the component B is prepared from the following components in parts by mass: 2-5 parts of micro-crystalline powder, 2-5 parts of titanium dioxide, 3-8 parts of nano zirconium oxide, 2-10 parts of ceramic micro-beads, 2-5 parts of aerogel, 5-10 parts of superfine hydrophilic silicon dioxide, 5-15 parts of calcium carbonate, 10-20 parts of organic silicon modified styrene-acrylic emulsion, 0.2-2 parts of a defoaming agent, 0.6-3 parts of a dispersing agent and 15-40 parts of deionized water. The coating disclosed by the invention not only can block fine cracks of a concrete outer wall, but also has dual heat preservation effects of reflective insulation and thermal insulation, and has excellent water vapor corrosion resistance.

The invention discloses attapulgite powder paint and a preparation method of the powder paint. The powder paint comprises the following raw materials in parts by weight: 30-40 parts of attapulgite, 2-5 parts of sodium hexametaphosphate, 5-10 parts of superfine light calcium carbonate, 20-28 parts of melamine formaldehyde resin, 8-15 parts of 145 pentalyn, 3-8 parts of sec-octaphenyl polyoxyethyiene, 1-3 parts of an antioxidant 1076, 0.6-1.4 parts of an optical brightener (OB), and 3-12 parts of nano aluminum oxide. The powder paint has high acid resistance, alkali resistance and friction resistance, high gloss retention and high decoration performance, can absorb methanal and volatile organic compounds in air efficiently and purifies the air.

Described are nonaqueous coating material compositions comprising (A) at least one polyhydroxyl group-containing compound, (B) at least one polyisocyanate group-containing compound having free or blocked isocyanate groups, (D) at least one amine-blocked phosphoric acid or phosphonic acid compound as a catalyst and (S) at least one monomeric aromatic optionally substituted carboxylic acid whose carboxyl group is in conjugation with a π-electron system, wherein the component (B) comprises at least one structural unit —NR—(X—SiR″x(OR′)3−x) (II), and / or at least one structural unit —N(X—SiR″x(OR′)3−x)n(X′—SiR″y(OR′)3−y)m (III). Also described are multistage coating methods, and use of the coating material compositions.