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7339000 Method and apparatus for producing an aqueous paint composition from a plurality of premixed compositions  
The present invention is directed to the provision of premixed aqueous compositions which are used to provide a paint composition of varying finish characteristics at the point of sale. Thus, the...
6284035 Pigment preparations in granule form  
Pigment preparations in granule form comprising as essential constituents from 50 to 99.5% by weight of at least one inorganic pigment and from 0.5 to 50% by weight of at least one organic pigment...
6063182 Stir-in pigment compositions  
A stir-in pigment composition for coloring high-molecular-weight material, particularly coatings and ink systems, comprises 85 to 99.5 parts by weight of a pigment and 0.5 to 15 parts by weight of...
6051060 Method of making pigment with increased hydrophilic properties  
A method for making coated pigment particles by forming a suspension of the desired pigment particles in a medium that also comprises a polymer characterized by having hydrophobic moieties on the...
6019834 Pigment, process for producing the same and paint using the same  
A pigment of the present invention comprises: pigment particle as core particle; a lower coat formed on at least a part of surface of the pigment particle, comprising squaric acid, polyol...
6007616 Process for preparing colored mineral powders by irradiation  
Disclosed is a system of natural colours consisting of thousands of coloured powders of mineral origin and of materials in or on which pigments have been applied and, afterwards, submitted to at...
5997627 Pigment composition and effect coatings  
The disclosure describes pigment compositions containing a small particle size porous filler and a pigment, and their use for preparing effect coating compositions which produce thin film finishes...
5961710 Inorganic pigment granules process for their production and their use  
The invention relates to granules of inorganic pigments, a process for their production using several auxiliary substances by compacting and their use in many technical fields.
5931998 Process for preparing colored mineral powders by chemical treatment  
Disclosed is a system of natural colors consisting of thousands of colored powders of mineral origin and of materials in or on which pigments have been applied and, afterwards, submitted to at...
5248337 Stable lead chromate pigment composition and process for producing the same  
A stable lead chromate pigment composition comprising a lead chromate pigment which has been treated by forming a continuous amorphous silica encapsulation on the surface of each particle of the...
5207828 Temperature-stable pigment-colored plastic compositions, process for producing them and means for conducting the process  
Plastics are described which contain, in intimate contact with the pigments, boric acid in a quantity of 1 to 20% by weight, preferably 2 to 15% by weight, of the dry pigment. Also described is the...
5007963 Novel process for the preparation of lead molybdate pigments and novel lead molybdate pigments  
A process for the preparation of lead molybdate pigments containing lead chromate, lead sulfate and lead molybdate, which comprises preparing the lead molybdate pigments by reacting an aqueous...
4921541 Orthorhombic greenish-tinged lead chromate pigments  
Orthorhombic greenish-tinged lead chromate pigments containing lead chromate and lead sulfate in a weight ratio of 91:9 to 100:0 and distinguished by a tinctorial strength of 0.053 to 0.066 at a...
4872915 Orthorhombic lead chromate pigments of greenish hue  
The invention relates to orthorhombic lead chromate pigments of greenish hue, which contain lead chromate and lead sulfate in the weight ratio of 60:40 to 100:0, and which are characterized by a...
4832749 Pigment composition  
A pigment composition, particularly adapted for the coloring of plastics materials, consisting of pigments comprising lead chromate, lead sulfochromate, lead molyb-do-sulfochromate, zinc chromate...
4464203 Highly concentrated, dust-free, solid and readily dispersible pigment formulations and their use  
Highly concentrated, dust-free, solid and readily dispersible pigment formulations contain (a) from 70 to 95% by weight of one or more finely divided pigments, (b) from 5 to 30% by weight of...
4317682 Pigment compositions and use thereof  
There is provided a pigment composition comprising 100 parts by weight of a pigment and from 0.3 to 30 parts by weight of a colorless or slightly colored aromatic compound having the following...
4310483 Thermal tumbling granulation  
A process for producing a granulate of difficultly fusible additives for plastics, particularly of pigments, by thermal tumbling granulation, which process comprises mixing the additive in powder...
4277288 Fluidized granulation of pigments using organic granulating assistant  
A process for producing a substantially dry, low dusting, free flowing granular pigment composition comprises (a) contacting a fluidized bed of pigment and a granulating assistant, (b) optionally...
4247338 Metal chromate pigment compositions  
Metal chromate and particularly lead chromate pigment compositions exhibiting low dusting characteristics and improved heat stability in thermoplastics are described. The pigment compositions...
4235639 Chrome pigment  
A process for the preparation of a treated chrome pigment which comprises precipitating antimony on to the surface of the pigment in the presence of a solution of metaphosphate ions.
4196016 Grinding of pigments  
A method of salt grinding pigments wherein the material to be ground is milled with an inorganic salt, an organic conditioner, and larger particles such as balls or nails for comminuting the...
4137092 Dispersion or suspension of solid phase in liquid phase  
The inventive method uses a continuous mixer for making dispersions or suspensions of a solid phase in a liquid phase. The solid and liquid phases are fed continuously into the mixer at respective...
4127421 Process for granulating lead chromate-containing pigments  
A process is described for the production of high yields of lead chromate-containing pigments in a nondusting granular form. The process involves agitating in aqueous medium designated amounts of a...
4115143 Dust-free thermally stable lead chromate pigment composition and process of preparation  
Substantially non-dusting, thermally stable lead chromate pigment composition consisting essentially of lead chromate pigment and at least one organic ester selected from esters of phthalic and...
4017325 Pigment composition  
This invention provides an improved pigment composition which blends readily with hydrophylic and oleophylic vehicles, and which can be manufactured with highly reproducible color value. A...
4015998 2,9-Dichloroquinacridone pigment compositions  
The disclosure teaches the preparation of a unique 2,9-dichloroquinacridone which provides a heat stable, highly dispersible magenta colorant suitable for use in plastics and the like where heat...
3973982 Coated pigments  
This invention relates to pigments and, more particularly, to the provision of a coating on pigments to improve their heat stability and/or abrasion resistance.
3969129 Method of producing inorganic pigments  
A method, wherein an electromagnetic field is established in which a precipitate of pigments is formed from aqueous solutions of the salts of metals in the presence of ferromagnetic solids,...
3962173 Process for the preparation of easily dispersible and stable molybdate red and chrome yellow pigments  
The dispersibility of molybdate red and chrome yellow pigments is improved by precipitating onto the pigment stabilized by silicium dioxide, aluminum oxide and/or antimony trioxide a mono-, di- or...
3946134 Method of encapsulating particles and the resultant product  
A protective coating consisting of an aluminum or magnesium phosphate complex is used to encapsulate a wide variety of organic and inorganic particles. The coating is particularly applicable to...
3929500 Chrome yellow pigment with improved thermal stability  
Chrome yellow pigment treated with from 0.2 to 18% of a boron compound. The boron-treated chrome yellow pigments, when coated with dense, amorphous silica, are particularly useful for coloring high...
3923538 PRIMROSE CHROME YELLOW PIGMENT AND PROCESS FOR ITS PREPARATION  
A primrose type chrome yellow pigment of improved thermal stability is prepared. The pigment contains at least one hydrous oxide and an orthorhombic phase lead chromate-lead sulfate solid solution...
3772047 PREPARATION OF RED SHADE MOLYBDATE ORANGE PIGMENTS  
Clear, bright and very red shades of molybdate orange pigments are described. The pigments are produced by precipitating the molybdate orange pigment particles in the presence of a starter solution...
3599880 LEAD-CHROMATE-BASED PIGMENT  
Method of preparing improved lead-chromate-based pigments, for particular application in printing inks and paints, in which lead chromate is first impact ground to pulverize it, the oversize...
3336147 Manufacture of pigment compositions  
3092507 Method of pigmentation without grinding and paints resulting from this method  
2813039 Lead chromate pigment compositions  
2808339 Process for improving lightfastness of lead chromate  
2719092 Pigment production  
2597645 Rust inhibitive lead pigments  
2382157 Process for producing chromates  
2376467 Manufacture of metallic compounds  
2365171 Lead chromate pigment production  
2350846 Preparation of carbon black  
2316244 Lead chromate pigment  
2302718 Pigment and method of preparing same  
2294381 Treatment of pigments with ammonium naphthenate  
2285115 Method of manufacturing chrome yellow pigments  
2275054 Electrolytic production of lead sulpho-chromates  
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