60results about How to "High solid content in construction" patented technology

The invention discloses a mono-component varnish composition, which comprises at least a polymer having a hyper branched or dendritical structure; at least one type of hydroxyl acrylic resin or hydroxyl methacrylate resin; at least one type of organosilicon-modified acrylic resins; at least a crosslinking curing agent; at least an acid catalyst; at least a rheological control agent; at least an auxiliary agent and at least a solvent; and the mono-component varnish composition has the advantages of high scratch resistance and high weather resistance. The provided mono-component varnish composition can effectively increase the smoothness of the surface of a varnish composition film, and increases the rub resistance of the film; in addition, the introduction of the organosilicon-modified acrylic resin can further increase the weatherability of the varnish composition film.

The invention relates to a water-based acrylic acid modified saturated polyester resin and a preparation method thereof. The water-based acrylic acid modified saturated polyester resin is prepared from the following raw materials in percentage by weight: 5-40% of polyatomic acid, 3-40% of polyhydric alcohol, 0.5-5% of cosolvent, 5-20% of acrylic monomer I, 0.5-5% of acrylic monomer II, 0.01-5% of initiator, 0.5-5% of neutralizer,2-20% of glycidyl tertiary carboxylic ester and 40-50% of distilled water. The water-based acrylic acid modified saturated polyester resin prepared by the invention has the advantages of excellent stability, high solids, low viscosity and low content of VOC (Volatile Organic Compounds) and is mainly applicable to amino-baking paint for waterborne coatings.

The invention discloses a single-component, high-solid-content and low-volatility organic compound (VOC) and environment-friendly type varnish composition. The varnish composition comprises at least one polymer with a hyper-branched or tree-shaped structure, at least one hydroxyl acrylic resin or hydroxyl methacrylic resin, at least one cross-linking curing agent, at least one acid catalyst, at least one rheology control agent and at least one auxiliary agent. With the adoption of the varnish composition and application of the varnish composition, disclosed by the invention, the viscosity of a varnish coating system can be effectively reduced, and the solid content of the construction can be easily improved to be 58 percent or above; construction VOC emission is reduced to be smaller than or equal to 420g/L; varnish film shrinkage caused in a curing process can also be effectively reduced and a cured multi-coating varnish film has better appearance effect; particularly, the effect in a wet-on-wet process, a three-coating and one-drying process of curing three coatings together or an IPP system of primers, paints and varnishes is obvious.

The invention discloses a coating process applying water-based paint to metal parts of construction machinery. The coating process is characterized in that water-based anti-corrosion priming paint and waterborne polyurethane texture finish paint are combined and used on base materials of the metal parts of the construction machinery. The coating process applying the water-based paint to the metal parts of the construction machinery enables the water-based paint to be correctly used for the coating of the metal parts of the construction machinery, not only solves harm and potential safety hazards brought about by a traditional coating process to a forklift, but also improves the protecting performance and the physical and chemical performance of the coating process, and prolongs the service life of the forklift.

The invention discloses star-shaped hydroxyl polyester adopting polyhydric alcoho as a nucleus and a preparation method and an application of the star-shaped hydroxyl polyester. The preparation method comprises the following steps: enabling 1 to 8 molar caprolactone and 1 to 4 molar anhydride to react for 6 to 10 h at 80 to 140 DEG C by adopting 1 molar small molecular polylasic alcohol as a core molecule to obtain a matrix star-shaped polyester, then reacting with 1 to 4 molar monoglycidyl ether at 90 to 150 DEG C to obtain star-shaped hydroxyl polyester. The prepared star-shaped hydroxyl polyester has the advantages of simple synthesis process, high solid content and low viscosity, a hydroxyl value is 140 to 250 mg KOH/g (80 percent of solid content), the viscosity at 25 DEG C when the solid content is 80 percent is 300 to 3000cp, the star-shaped hydroxyl polyester can be cross-linked with a polyurethane curing agent containing an isocyanate group and can be used for preparing a coating with a high solid content, the VOC content at the construction viscosity is smaller than 380 g/L, and the film performance can satisfy the national standard of the solvent-type dual-component polyurethane wood coatings.

The invention discloses a coating process applying water-based paint to metal parts of engineering machinery. The coating process applying the water-based paint to the metal parts of the engineering machinery is characterized in that water-based anti-corrosion priming paint and waterborne polyurethane texture finish paint are combined and used on base materials of the metal parts of the engineering machinery. The coating process applying the water-based paint to the metal parts of the engineering machinery enables the water-based paint to be correctly used for the coating of the metal parts of the engineering machinery, and not only solves harm and potential safety hazards brought about by a traditional coating process to a forklift, but also improves the protecting performance and physical and chemical performance coating process, and prolongs the service life of the forklift.

The invention relates to alkyd resin, particularly high-solid and low-viscosity short oil alkyd resin and a preparation method therefor. The high-solid and low-viscosity short oil alkyd resin provided by the invention is prepared from the following components in parts by weight: 65-75 parts of oleic acid, 26-47 parts of dihydric alcohol, 35-53 parts of trihydric alcohol, 70-80 parts of phthalic anhydride, 0.06-0.1 part of hypophosphorous acid, 10-20 parts of a medium solvent, and 30-50 parts of a diluting solvent. The short oil alkyd resin prepared by the invention is high in solid content and low in viscosity, can be used in light or matte polyurethane wood lacquer at the same time, remarkably reduces the content of VOC in paint, and has a good film effect.

The invention relates to a waterborne hydroxyl acrylic finish paint and a preparation method thereof. The waterborne hydroxyl acrylic finish paint comprises a component A and a component B, and the component A comprises, by mass, 50-55 parts of an aqueous hydroxyl acrylic dispersion, 4.5-9 parts of deionized water, 0.2-0.3 part of a pH adjuster, 2-3 parts of a cosolvent, 1-1.2 parts of a wetting and leveling agent, 1-1.2 parts of a brightener, 1-1.2 parts of an emulsifier, 3-4 parts of an anti-settling agent, 0.5-0.7 part of a thickener, 0.2-0.4 part of an antifoaming agent, 0.8-1.5 parts of adispersant, 2-21 parts of a pigment and 10-26 parts of a filler; the component B comprises, by mass, 75-85 parts of an aqueous isocyanate curing agent and 15-25 parts of an environmentally friendly solvent; and a mass ratio of the component A to the component B is (8-10):1 . The finish paint in the invention has far higher hardness and glossiness than existing low-hydroxyl waterborne acrylic polyurethane finish paints, and has a far lower cost than high-hydroxyl waterborne acrylic polyurethane finish paints.

The invention discloses a coating process applying water-based paint to forklift metal parts. The coating process is characterized in that water-based anti-corrosion priming paint and waterborne polyurethane texture finish paint are combined and used on base materials of a critical component of a forklift. The water-based paint is enabled to be correctly used for coating of the critical component of the forklift, and the coating process applying the water-based paint to the forklift metal parts not only solves harm and potential safety hazards brought about by a traditional coating process to the forklift, but also improves the protecting performance and the physical and chemical performance of the coating process, and prolongs the service life of the forklift.

The invention belongs to the field of aqueous coatings, and relates to a microgel aqueous acrylic acid shell-core resin emulsion. The resin emulsion is prepared through a reaction of 13-16 parts of an acrylic acid resin water dispersion (with the solid content of 28-34%), 18-21 parts of a vinyl monomer, 20.5-27.6 parts of an acrylic acid and acrylate monomer, 0.3-0.6 parts of an initiator, 5-6 parts of an organic solvent and 49-53 parts of water. The microgel resin emulsion is added to an aqueous coating, so the sagging property of a paint film is obviously improved, a good anti-sagging effect is reached, the thickness of the paint film in closed angles or edges and other difficult coating positions of a coated member is obviously increased, and the corrosion resistance of the surface of the coated member is improved. The nanometer-level aqueous acrylic acid emulsion with the particle size being smaller than 150nm is produced through the method, can be added to the aqueous coating without thickening the coating, and facilitates maintenance of high construction solid content.

The invention discloses a high-adhesion aqueous thermosetting acrylic resin, a preparation method and applications thereof. According to the present invention, a reaction monomer is modified with a silane coupling agent, a polymerization reaction is performed in an alcohol ether type solvent medium under the effect of an initiator, and neutralization salification is performed with an organic amine to prepare the acrylic resin, wherein the reaction monomer comprises, by mass, 0-30% of methyl propiolate, 0-30% of acrylic acid ester, 5-18% of (methyl) hydroxyalkyl acrylate, 1-10% of unsaturated carboxylic acid, and 0-20% of a vinyl aromatic compound. According to the present invention, the prepared acrylic resin coating material has excellent adhesion to the aluminum material, the paint film has characteristics of high luster, good fullness and high strength, and the excellent protection performance and the excellent decorative effect can be provided for the high-grade aluminum material.

The invention discloses an environment-friendly anticorrosive coating material for automobile parts and a preparation method thereof. The environment-friendly anticorrosive coating material comprises an ingredient A and an ingredient B, wherein the ingredient A comprises epoxy resin, pigment/filler, auxiliaries and an organic solvent, and the ingredient B comprises polyamide resin, a siloxane compound, a tertiary amine curing accelerator and an organic solvent. According to the anticorrosive coating material disclosed by the invention, the construction solid content is high (not lower than 60wt%), the VOC (Volatile Organic Compound) emission is low during construction, and the construction performance and film coating property are excellent; the coating material can be applied to anticorrosive coating layers of automobile metal parts, such as transmission cases, chassis parts, axles and other castings, the coating supporting is simple, the requirements on substrate pretreatment are low, sandblasting and phosphating treatment are not required, and good film coating performance can be guaranteed by only cleaning and degreasing; and the environment-friendly anticorrosive coating material for the automobile parts, disclosed by the invention, is simple in preparation process and is energy-saving and environment-friendly, and the prepared product is stable in performance.

The invention discloses an acid epoxy high-temperature curing type coating varnish for automobile exterior coating and a preparation method thereof. The varnish is prepared from the following components: thermosetting acrylic resin having a total acid value of 120 to 140, thermosetting acrylic resin having an epoxy value of 2.0 to 4.0, anti-sagging resin, saturated polyester containing a hexahydrophthalic anhydride monomer, amino resin, an ammonium bromide catalyst, a catalyst blocking agent, a leveling agent, a polyacrylate antifoaming agent, an ultraviolet absorber, a hindered amine light stabilizer, an anti-sagging aid containing fumed silica, an alcohol solvent and a diluent. The invention also discloses a preparation method of the varnish. The varnish disclosed by the invention has the characteristics of high construction solid content, attractive appearance, high acid resistance and the like, and has relatively high competitiveness in the market.

The invention discloses water-based organic silicon modified cationic acrylic resin and a synthesis method. The water-based organic silicon modified cationic acrylic resin is prepared from the following raw materials: a monomer, a functional monomer, a solvent, acid, a chain transfer agent and an initiator, wherein the monomer comprises, by weight, 100-400 parts of methyl methacrylate, 5-50 partsof butyl acrylate and 20-200 parts of styrene, the functional monomer comprises, by weight, 10-100 parts of vinyltriethoxysilane, 20-200 parts of dimethylaminoethyl methacrylate and 30-250 parts of hydroxyethyl acrylate, the solvent comprises, by weight, 100-400 parts of propylene glycol monomethyl ether, 50-400 parts of absolute ethyl alcohol and 20-200 parts of N, N-dimethylformamide, the acid is 5-60 parts by weight of lactic acid, the chain transfer agent is 1-50 parts by weight of a methyl styrene linear dimer, and the initiator is 1-50 parts by weight of azodiisobutyronitrile. The invention solves the fundamental problems of unsatisfactory hardness, transparency, solvent resistance and other properties, high cost and the like of the traditional water-based wood paint, can completelyreplace the oil-based PU wood paint, and can generate great advantages for environmental beautification without losing the properties under the large situation of environmental protection.

The invention discloses a high-solid multifunctional quick-drying intermediate coating composition. The composition comprises the following components in parts by weight: an intermediate coating comprises the following components in parts by weight: 25-40 parts of acrylic resin, 0.3-1 part of a leveling agent, 0.2-2 parts of a dispersing agent, 5-15 parts of a pigment, 35-50 parts of a functionalfiller, 0.2-2 parts of an anti-settling agent, 10-15 parts of a first solvent, 0.2-0.5 parts of a storage stabilizer; and a curing agent comprises the following components in parts by weight: 40 to 60parts of isocyanate, 40 to 60 parts of a second solvent; or the curing agent comprises the following components in parts by weight: 40 to 60 parts of isocyanate, 40 to 60 parts of the second solvent,and 0.01-1 part of a water-removal additive. The invention also discloses a purpose of the high-solid multifunctional quick-drying intermediate coating composition as an automotive paint. The high-solid multifunctional quick-drying intermediate coating composition has good workability and paint film, and has high production efficiency and low VOC.

The invention discloses two-component high-solid-content varnish and a preparation method thereof. A paint part is prepared from, by weight, 65-75 parts of resin, 0.3-1 part of a defoaming agent, 0.4-1 part of a levelling agent, 0.1-0.5 part of a drying promotor, 1-2 parts of a light stabilizer, 1-2 parts of a light absorber and 20-30 parts of a solvent; a curing agent part is prepared from 89 parts of a curing agent and 11 parts of a solvent. A varnish film formed by the varnish has the good appearance; compared with the prior art, the solid content is high, the spraying solid content reaches 60% or above, volatilization of the solvent is significantly reduced, and the plumpness of the varnish can be effectively improved.

The invention relates to the technical field of colored finish paint, in particular to UV finish paint for a wheel hub and a preparation method of the UV finish paint. The finish paint is composed ofthe following components: 50 to 55 wt% of UV-PU dual-cured resin, 15 to 30 wt% of UV-PUA resin, 4 to 6 wt% of deep-curing photoinitiator, and 4 to 8 wt% of aluminum powder, 7 to 15 wt% of functional monomer, 0.5 to 1 wt% of organic silicone substrate wetting and leveling agent, 4 to 20 wt% of UV color pastes, 1.5 to 2 wt% of UV absorber, 4 to 8wt% of solvent, and 5 to 7wt% of HDI curing agent. Theinvention has good application properties, can be used in combination with powder primers, powder varnishes and UV varnishes, and can ensure interlayer adhesion and various performance of films. TheUV finish paint has the characteristics that the aluminum powder is well arranged, the construction solid content reaches 60%, and the curing efficiency is high. The UV finish paint disclosed by the invention is environmentally friendly and energy-saving, and improves the poor weather resistance and poor impact resistance of ordinary UV coatings.

The invention relates to high-solid-content PU (polyurethane) matte varnish and a preparation method thereof. The matte varnish is prepared from a component A, a component B and an environment-friendly diluent. The matte varnish has the benefits as follows: the problem of poorer storage stability under low viscosity is effectively solved, meanwhile, by means of low system viscosity, the VOC (volatile organic compound) content of construction is further reduced, the purpose of consumption tax exemption is achieved, besides, the usage of a solvent and the number of coating layers of the varnish can be greatly reduced due to the high solid content of the construction, accordingly, the cost reduction is facilitated, and raw materials are saved; a paint film has high hardness and is scratch-resistant, and the grade of wood lacquer is improved.