Class 106/433 - Lead chromate containing, e.g., molybdate orange, chrome yellow, etc.

Subclass of Class 106 - Compositions: coating or plastic
Definition: Subject matter wherein the composition contains lead chromate.
No. of patents: 32
Last issue date: 03/30/2010

Number	Title	Issue Date
7686882	Titanium dioxide pigment having improved light stability In various embodiments, methods and compositions are provided comprising titanium dioxide and silica spacers having improved light stability for use in paper, plastic and paints. ...	03/30/2010
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 merchant distributing the paint composition made from the subject prem...	03/04/2008
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 are prepared and used for coloring polymeric materials....	09/04/2001
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 an additive comprising a vinylpyrrolidone polymer or copol...	05/16/2000
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 polymer backbone and ionic moieties that are present on, or...	04/18/2000
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 having an anthraquinone skeleton represented by the general formula (I):...	02/01/2000
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 least one thermal treatment and/or irradiation. These natura...	12/28/1999
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 exhibiting strong lightness and color flop with a pronounc...	12/07/1999
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....	10/05/1999
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 least one thermal treatment and/or irradiation. These natural ...	08/03/1999
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 pigment and subsequently depositing an antimony compound on ...	09/28/1993
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 process for producing said plastics, in which the usual p...	05/04/1993
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 solution of a lead salt with an aqueous solution containing ch...	04/16/1991
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 standard depth of color of 1/25 in accordance with DIN 53235...	05/01/1990
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 tinctorial strength of 0.067 to 0.103 at a standard depth of...	10/10/1989
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 or strontium chromate and being covered by a film formed by...	05/23/1989
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 one or more surfactants which possess 20-45% by weight of ethylene ox...	08/07/1984
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 general formula (I) ##STR1## wherein Q represents a resid...	03/02/1982
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 form with a granulating auxiliary which softens between 30�...	01/12/1982
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 contacting the granules so obtained with a surfactant and (...	07/07/1981
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 consist essentially of a metal chromate-containing pigment and ...	01/27/1981
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....	11/25/1980
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 pigment to the desired state of subdivision and is subsequently ...	04/01/1980
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 input rates resulting in a combined proportion of solid ph...	01/30/1979
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 lead chromate-containing pigment, a friable, low molecula...	11/28/1978
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 terephthalic acids and esters of fatty acids and process of p...	09/19/1978
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 colorant, typically a dye or dye intermediate, is absorbed on an i...	04/12/1977
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 stability and lightfastness are necessary. The disclosure fu...	04/05/1977
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....	08/10/1976
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, whereupon the precipitate is treated to obtain a finished form of...	07/13/1976
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 triamine having one aliphatic chain of 10 to 20 carbon ato...	06/08/1976
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 organic and inorganic pigments and serves to improve the ligh...	03/23/1976

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Class 106/433 - Lead chromate containing, e.g., molybdate orange, chrome yellow, etc.