A vegetable oil-based alkoxylate composition comprising a mixture of mono-, di-, and/or triacyl alkoxylated glycerides and alkoxylated glycerin. A method of reacting a vegetable oil and an alkoxylated glycerin via a transesterification reaction to produce a vegetable oil-based alkoxylate composition.

The present invention is a composition comprising an aqueous dispersion of metal oxide pigment particles coated with an organosilane polymer comprising structural units of an alkyltrihydroxysilane or a salt thereof, a dialkyldihydroxysilane or a salt thereof, and an ancillary alkylsilane triol. The composition of the present invention provides hydrophobicity to pigment particles, thereby imparting water resistance, and allows for high loadings of pigment in water without increased viscosity. The dispersion is further useful for providing stain and corrosion resistance in coatings arising from paints.

There are disclosed aqueous pigment dispersions containing dispersant-improving-agents, and methods of preparing and using the same.

Provided is a metal-particle dispersion composition as a composition containing dispersed metal particles and being suitable for use in aqueous coating compositions, etc., the metal-particle dispersion composition comprising 10-80 mass % metal particles, 0.01-10 mass % organic titanate compound in a chelate form, 1-40 mass % water, and 2-30 mass % organic solvent having a higher boiling point than water, the amounts being based on the whole composition, wherein the organic titanate compound is an organic compound represented by Ti(OR).sub.4 (the OR groups include at least one chelatable substituent based on triethanolamine) and the organic solvent having a higher boiling point than water is a C.sub.7 or lower alcohol compound.

Provided is a metal-particle dispersion composition as a composition containing dispersed metal particles and being suitable for use in aqueous coating compositions, etc., the metal-particle dispersion composition comprising 10-80 mass % metal particles, 0.01-10 mass % organic titanate compound in a chelate form, 1-40 mass % water, and 2-30 mass % organic solvent having a higher boiling point than water, the amounts being based on the whole composition, wherein the organic titanate compound is an organic compound represented by Ti(OR).sub.4 (the OR groups include at least one chelatable substituent based on triethanolamine) and the organic solvent having a higher boiling point than water is a C.sub.7 or lower alcohol compound.

The present invention relates to a dispersant composition comprising: a) at least one oligomeric acid A, which has i) at least one acidic group selected from COOH and PO.sub.3H.sub.2, and ii) at least one polyoxyalkylene-ether radical of the formula (I): R—(O-A).sub.xO-G-, where A is an C.sub.2-C.sub.4-alkan-1,2-diyl radical; X is an integer having a number average value in the range from 2 to 20; and R is hydrocarbon radical having from 1 to 30 carbon atoms; G is a chemical bond or a carbonyl group; and b) at least one polyamine B, which is selected from the group consisting of polyvinylamines, poly-C.sub.2-C.sub.3-alkyleneimines, modified poly-C.sub.2-C.sub.3-alkyleneimines, melamine compounds, modified melamine compounds, poly-(C.sub.2-C.sub.4-alkyleneether) amines, polyetheramine polyols, and modified polyetheramine polyols. The invention also relates to aqueous pigment compositions containing a dispersant composition as defined herein, a pigment component, selected from the group consisting of pigments and mixtures of at least one pigment and at least one filler, and an aqueous diluent.

An oxidized zinc pigment has been developed that can be used in a waterborne coating. The zinc metal allows for improved stability in waterborne systems while retaining the level of activity required for an anticorrosive material. This pigment is oxidized enough to prevent corrosion and still be dispersed in the waterborne coating, while still allowing for cathodic and anodic corrosion protection in the coating once applied to a metal surface. This zinc pigment may also be used in a waterborne ink or coating system and also for coated metal articles.

There are disclosed aqueous pigment dispersions containing dispersant-improving-agents, and methods of preparing and using the same.

A pigment dispersion for an inkjet ink contains pigment particles, styrene-acrylic resin, and water. The styrene-acrylic resin includes a first repeating unit having a group represented by formula (1) and a second repeating unit not having a repeating unit represented by formula (1).

##STR00001##

The first repeating unit has a percentage content to the total mass of the first repeating unit and the second repeating unit of at least 1% by mass and no greater than 10% by mass. In formula (1), R.sup.1 represents a hydrogen atom or a methyl group, R.sup.2 represents a hydrogen atom or an alkyl group with a carbon number of at least 1 and no greater than 7, and m.sub.1 represents an integer of at least 4 and no greater than 9.

The invention relates to a method for providing a composition selected from the group consisting of aqueous pastes, inks, paints and coating formulations with retroreflective properties, said method comprising the steps of: a) providing an aqueous paste, ink, paint or coating formulation without retroreflective properties, said aqueous paste, ink, paint or coating formulation having a viscosity η.sub.1 of between 0.25 and 1000 Pa.Math.s at a shear rate of 0.01 s.sup.-1; b) providing an aqueous pseudoplastic gel composition comprising a thickener; c) admixing the aqueous ink, paint or coating formulation provided in step (a) with the aqueous pseudoplastic gel composition provided in step (b) in a weight ratio of between 30 : 70 to 70 : 30; and d) admixing the mixture obtained in step (c) with 0 - 2 wt.%, based on the total weight of the aqueous paste, ink, paint or coating formulation with retroreflective properties, of a thickener.