221results about "Siccatives" patented technology

The invention discloses cathode electrophoretic paint containing an environmental-friendly type drier and a preparation method of the pain. The preparation method comprises the following steps: preparing a curing agent, preparing a composite drier, preparing a main body resin, preparing cathode electrophoretic paint emulsion, preparing color paste, subsequently mixing the color paste, the cathode electrophoretic paint emulsion and the deionzed water according to a ratio of 1:(3-5):4, adjusting the content of the paint working liquid solid to be 15-30%, and circulating for 48 hours so as to obtain the cathode electrophoretic paint containing the environmental-friendly type drier. A painted article, which is applicable to the electrophoretic coating method, only needs to be conductive and has no other limit. The electrophoretic paint disclosed by the invention is simple to prepare and good in storage stability and does not need to be dispersed in a sanding manner. The prepared cathode electrophoretic paint is good in flowability and good in surface effect.

The present invention relates to a curing agents for air-drying alkyd-based resins, coatings, such as paint, varnish or wood stain, inks and linoleum floor coverings, based on an iron/manganese complex containing tetradentate, pentadentate or hexadentate nitrogen donor ligands.

The invention discloses a production method of a composite dryer for paint. The production method comprises that a mixture of a light rare earth carbonate, manganese carbonate, vanadium pentoxide and isocaprylic acid undergo a composite reaction to produce the composite dryer for paint. The invention also provides the composite dryer for paint. The composite dryer for paint comprises active components of 1.5 to 2wt% of vanadium ions, 1.5 to 2.5wt% of manganese ions and 4 to 4.5wt% of cerium or lanthanum ions, wherein the total valence-alterable metal ion content is in a range of 7 to 9wt%. The composite dryer for paint can fully replace cobalt as a dryer, can eliminate the pollutants of cobalt and lead, and is nontoxic and environmentally friendly. The composite dryer for paint has integrated effects of a plurality of the existing driers. The production method saves a cost, simplifies a paint blending test, and is convenient for production. The composite dryer for paint has a low use amount and a low cost.

Disclosed are low Tg latex polymers and low VOC aqueous coating compositions having an improved open time profile, as well as drying time, stain resistance, wet edge time, low temperature film formation, block resistance, adhesion, water sensitivity and low-VOC content. The latex polymers and aqueous coating compositions include at least one latex polymer derived from at least one monomer copolymerized or alkoxylated compounds or blended with an alkoxylated compound, for example an alkoxylated tristyrylphenol or an alkoxylated tributylphenol. Also provided is an aqueous coating or adhesive composition including at least one latex polymer, water and one or a blend of two or more open time additives or drying time additives. The blend can comprise nonionic and anionic open time additives. Typically, the open time and/or drying time additive is present in an amount greater than about 1.3% by weight of the polymer or composition, typically in an amount greater than about 2% by weight of the polymer or composition, in an amount greater than about 4% by weight of the polymer or composition, in an amount greater than about 7.5% by weight of the polymer or composition, in an amount greater than about 10% by weight of the polymer or composition or in an amount greater than about 20% by weight of the polymer or composition.

The invention relates to a drier composition for an oxidatively air-drying alkyd based coating composition, comprising: a) at least one metal complex comprising a metal and at least one nitrogen donor ligand, wherein the metal is selected from the group consisting of Fe and Mn, and wherein said at least nitrogen donor ligand is selected from the group comprising monodentate, bidentate, tridentate, tetradentate, pentadentate and hexadentate nitrogen donor ligands; and b) at least one K salt of an organic acid. The present invention also relates to a coating composition comprising said drier composition and the use thereof.

The invention discloses an environmental-friendly drier, a preparation method thereof and applications thereof. The drier is characterized in that: a reaction product of a ligand 3,7-diazabicyclo[3.3.1] nonane and a metal chloride is in a mixed crystal type or a solid-state solution type; and beneficial effects of the drier are that: the drier is free from metal cobalt having risks of "three cause", and has little bad influence on the environment and health; the drier is used for oxidation polymerization drying-type printing ink; and the ink film surface is free from skinning and wrinkling even when the printing ink layer is thick. According to the drier and the preparation method, the ratio of iron to manganese in a complex and the constitution of the ligand can be adjusted according to the drying condition of the printing ink so as to achieve an effect of adjusting the drying time of the printing ink. The ligand 3,7-diazabicyclo[3.3.1] nonane has a general chemical formula shown as follows.

A poly(amide-imide) copolymer film having a tensile modulus of greater than or equal to 5.4 GPa, and a yellowness index of less than or equal to 3.6, wherein the poly(amide-imide) copolymer film is a reaction product of an aromatic dianhydride including biphenyl tetracarboxylic dianhydride and 4,4′-hexafluoroisopropylidene diphthalic dianhydride, an aliphatic dianhydride including 1,2,3,4-cyclobutane tetracarboxylic dianhydride, an aromatic diamine including 2,2-bis(trifluoromethyl) benzidine, and an aromatic dicarbonyl compound including terephthaloyl dichloride.

The invention relates to a compound drier emulsion which has a 'nuclear-shell' structure and is used for a waterborne air-drying coating, which is characterized in that the compound drier emulsion is the purple emulsion containing various metal ingredients, which takes an organic metal soap as a 'nuclear', takes a reactive non-migrant surfactant as a 'shell' and is compounded by being matched with a special emulsifier, and the solid content is 45 to 72 percent by weight. The compound drier emulsion can ensure the stability of the coating and the effectiveness of the drier, reduce the defects of a paint film and improve the gloss of the paint film by being used for the waterborne air-drying coating.

A drier of acetacetic acid alkyl ester metal chelate paint and its production are disclosed. The procedure is carried out by reacting alkyl alcohol with diketene to obtain acetacetic acid alkyl ester chelant, and synthesizing the chelant with inorganic metal salt to obtain drier of acetacetic acid alkyl ester metal chelate. Its advantages include solid storage, light color, non-toxic, various raw material resources, simple process and more output.

The invention relates to a drier which comprises 5 to 50 percent of nonionic surfactant which is poly-oxypropylene polyoxyethylene block type polyether; 0.1 to 5 percent of one or a plurality of organic polyprotic acid inhibition antisludging agents; 5 to 25 percent of solubilizer; 2 to 10 percent of anion surface surfactant and dispersant, and the rest of deionized water. The drier can cause the drier to be dispersed fully in the final rinsing water of a dishwasher with no lumping precipitation and not to be precipitated easily in high temperature environment, can reduce effective component loss, make full use of effective component and reduce device pollution.

The invention discloses a preparation method of efficient rare-earth paint drier, taking isooctanoic acid, sodium hydroxide, lanthanum cerium solution, 200# solvent oil, water and corresponding auxiliary agent as main raw materials to prepare the efficient rare-earth paint drier, controlling the concentration of organic acid, the concentration and saponification rate and saponification time of the saponification agent, the extraction time and the addition quantity of auxiliary agent to ensure that the drier can reach set metal content and optimized drying performance. The results show that all technical indexes of the rare-earth drier prepared by the method can reach the national standard, satisfy application requirements of various paints, and overcome the shortage that the sample plate of the rare-earth drier in white alkyd ready mixed paint gets dark. The content of metal of the rare-earth paint drier prepared by the method is 4% to 10%, and the appearance is clean and transparent, no precipitate is generated.

The present application provides a composite material that comprises a solid and solid-supported non-polymeric switchable moiety, wherein the switchable moiety comprises a functional group that is switchable between a first form and a second form, said first form being neutral and hydrophobic, and said second form being ionized and hydrophilic. The composite material converts to, or is maintained in, said second form when the switchable moiety is exposed to CO₂ at amounts sufficient to maintain the ionized form. The composite material converts to, or is maintained in, said first form when CO₂ is removed or reduced to an amount insufficient to maintain the ionized form. CO₂ is removed or reduced by exposing the composite material to heat and/or a flushing inert gas such as N₂, Ar, or air. Envisioned uses of these composite materials includes removing water from non-aqueous solvents, removing water vapour from gaseous mixtures, and cleaning industrial reaction vessels and/or pipelines.

The invention relates to the field of coating, in particular to a method for producing environment-friendly efficient electrophoretic paint. The environment-friendly efficient electrophoretic paint comprises 1-2 parts of color paste, 4-6 parts of emulsion and 5-7 parts of deionized water. The color paste in a formula comprises 20-30 parts of matrix resin, 5-10 parts of alcohol ether complex solubilizers, 3-8 parts of organic acid, 0.3-0.7 part of emulsifiers, 1-5 parts of compound driers, 30-40 parts of deionized water and 15-20 parts of fillers. The method for producing the environment-friendly efficient electrophoretic paint includes steps of A, preparing the color paste; B, preparing the emulsion; C, preparing electrophoretic paint. The method has the advantages that the emulsion and the color paste are in different compound formulas when modified, and accordingly the environment-friendly efficient electrophoretic paint which is cathode electrophoretic paint is safe and is environmentally friendly.

The invention discloses a preparation method of a composite rare earth drier for oil paint and relates to a drier for chemical industry. The composite rare earth drier is prepared by mixing cerium isooctanoate, manganese isoocatanoate, zinc isoocatanoate and cobalt isoocatanoate. The four substances realize a synergistic effect to promote the drying of a paint film by using an oxidation and polymerization reaction mechanism. The composite rare earth drier disclosed by the invention is used for coatings such as alkyd color lacquer, phenolic color lacquer and antirust paint; technical indicators such as drying time of the oil paint, the hardness of the paint film, impact resistance and crust property are remarkably improved.

Coating for an offset paper comprising a catalyst for fixing polymerisable or crosslinkable constituents of the offset ink. The chemical drying time can be substantially reduced if such a catalyst system is added to the coating, wherein preferentially such a catalyst is a transition metal complex/salt, like Mn (2-ethylhexanoate, bpy).

The invention relates to a method for preparing a water polyurethane drier, which comprises the following steps: weighing material, oil main drier, oil auxiliary drier, emulsifier, emulsion reaction drier, chelant and deionized water according to 1:1.5-1.5:0.005-0.1:0.0001-0.005:0.001-0.02:1-5; adding deionized water in the emulsifier with high shearing force( the rotary speed is 13000-15000 rotation/ minute, the linear speed isn't less than 25m/s); adding oil main drier, oil auxiliary drier, chelant, dilaurate ortho-butyl tin and emulsifier sequentially; starting the recalculated water in the emulsifier when the material temperature in the reactor is 40Deg. C; keeping the temperature of liquid less than 40Deg. C; acquiring the water polyurethane drier by mixing 25-30minutes. The water polyurethane drier can dissolve with water, which can dissolve with water polyurethane according to any proportion, and has the long saving time and the low cost.

A mixture for use as a drier for air-drying an auto-oxidizable resin composition, said mixture comprising : 1,4,7-trialkyl-1,4,7-triazacyclononane (L); and, a manganese salt having the general formula Mn²⁺[X]_n, wherein anion X is selected from PF₆^{−, SbF}₆⁻, AsF₆⁻, BF₄⁻, B(C₆F₅)₄⁻, Cl⁻, Br⁻, I⁻, NO₃⁻, or R₂COO⁻ in which case n=2, or the anion X is SO₄²⁻ in which case n=1, and wherein R₂ is C₁-C₂₀ alkyl optionally substituted with heteroatoms, C₆-C₂₀ aryl optionally substituted with heteroatoms, or a polymeric residue; wherein the 1,4,7-trialkyl-1,4,7-triazacyclononane (L) is present in the mixture in an amount such that the molar ratio of L:Mn is at least 1.25:1 and more preferably at least 1.5:1.

The invention relates to the field of paint, in particular to a preparing technology for environment-friendly cathode electrophoresis paint. The electrophoresis paint is prepared from, by mass, 1-2 parts of color paste, 4-6 parts of emulsion and 5-7 parts of deionized water. According to a formula, the color paste is prepared from 20-30 parts of matrix resin, 5-10 parts of an alcohol ether cosolvent, 3-8 parts of organic acid, 0.3-0.7 part of an emulsifying agent, 1-5 parts of a composite drier, 30-40 parts of deionized water and 15-20 parts of filler. A preparing method of the composite drier includes the steps that one of oxalic acid, citric acid, glycolic acid and the like is selected and mixed with deionized water at the proportion of (1-10):10, the mixed solution is pre-mixed for 1 h at 60-80 DEG C, then 1-10 parts of a catalyst is added into the mixed solution in batches under stirring, a reaction is carried out for 4-10 h at 70-90 DEG C, and finally the composite drier soluble in water can be obtained by filtering out precipitate; according to a formula, the emulsion is prepared from 40-50 parts of modified epoxy resin A, 10-20 parts of modified epoxy resin B, 10-30 parts of a curing agent, 3-8 parts of unimolecular amine, 0.1-2 parts of an emulsifying agent, 0.1-2 parts of a neutralizing agent and 30-50 parts of deionized water.

The invention relates to a hardening and setting accelerator additive consisting of two components. The first component contains agents for developing the rigidity of the binding agent and the second component is an activating component and/or a texturing component.