Patents Examined by Christine Skane
  • Patent number: 4861379
    Abstract: A spherical fine particulate pigment in which pigment particles have a diameter of not more than 0.5 .mu., and the surface thereof is treated by a surface active agent, is provided by reacting a water soluble dye and an insolubilizing agent therefor in a water-in-oil type emulsion aqueous phase which is prepared by using a nonionic surface active agent. The pigment has an excellent dispersing ability and outstanding tinting strength. It has a wide variety of uses in the field of cosmetics, paints, inks, or the like.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: August 29, 1989
    Assignee: Kao Corporation
    Inventors: Takeo Imai, Kazuko Iwano
  • Patent number: 4859359
    Abstract: A composition is described which cleans, imparts water repellency and polishes hard surfaces. This composition comprises a solvent mixture of a glycol ether, a lower aliphatic alcohol, a hydrocarbon solvent and water, together with an organic polysiloxane, a silane, and a polycarboxylic chelating acid. A preferred composition contains propylene glycol monomethyl ether, isopropanol, high flash naphtha or mineral spirits, a polydimethysiloxane, citric acid, and orange oil terpene.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: August 22, 1989
    Assignee: Dyna-5, Inc.
    Inventors: John A. DeMatteo, Gregory P. Pilant
  • Patent number: 4859247
    Abstract: An oil-soluble viscosity-reducing additive made by combining an amine and a polybasic organic acid permits the incorporation of large proportions of pigment into pigment dispersions. The increased proportion of pigment provides advantages in the manfacture of inks.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: August 22, 1989
    Assignee: BASF Corporation
    Inventors: Thomas E. Foye, Joseph P. Baillargeon
  • Patent number: 4857111
    Abstract: Hydroxyfunctional carboxamide compounds of formula I ##STR1## are included in thixotropic formulations containing highly disperse silica as a thickening or thixotroping component in order to activate the silica or enhance its effect, to amerliorate any tendency of the silica to settle and/or to prevent weakening of the thixotroping effect of SiO.sub.2 in formulations which themselves form relatively strong hydrogen bonds. The compounds of formula I may be added to silica-containing thixotropic liquid formulations to improve the thixotropy, or highly disperse silica may be coated with such compounds for later incorporation into liquid systems to render them thixotropic.
    Type: Grant
    Filed: March 2, 1988
    Date of Patent: August 15, 1989
    Assignee: BYK-Chemie GmbH
    Inventors: Karl-Heinz Haubennestel, Holger Heilmann, Andreas Diez
  • Patent number: 4854972
    Abstract: The invention is concerned with a substantially nitrogen-free process for chloride-route TiO.sub.2 pigment manufacture in which a TiO.sub.2 -containing feedstock is subjected to a fluidized-bed, high temperature carbochlorination in a chlorinator to produce TiCl.sub.4 which is thereafter converted to TiO.sub.2 by oxidation. The TiO.sub.2 -containing feedstock and a solid carbonaceous reducing agent are fed to the chlorinator under a CO.sub.2 blanketing atmosphere such that the carbochlorination is carried out in a substantially nitrogen-free atmosphere containing CO.sub.2 and a CO.sub.2 -rich flue gas is generated, the CO.sub.2 in the chlorinator assisting in controlling thermal balance of the carbochlorination reaction. The absence of significant concentrations of nitrogen in the flue gas results in a favorable condition enabling either or both the CO and CO.sub.2 contained in the flue gas to be readily recovered, purified and sold as by-products.
    Type: Grant
    Filed: June 23, 1987
    Date of Patent: August 8, 1989
    Assignee: Canadian Liquid Air Ltd.
    Inventors: Guillermo F. Garrido, Robert G. H. Lee, Olivier Francois
  • Patent number: 4855075
    Abstract: The invention relates to novel ethoxylates of alkyl and alkenyl catechols and to their use as surface active agents. The novel ethoxylates of alkyl and alkenyl catechols are especially useful as self-sequestering surfactants in detergent compositions.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: August 8, 1989
    Assignee: Sandoz Ltd.
    Inventor: Robert V. Casciani
  • Patent number: 4855070
    Abstract: A water-glycol energy transmitting fluid having a viscosity of from about 10 to about 200 centistokes at 40.degree. C. comprising:(a) from about 30 to about 40 percent by weight, based upon the total weight of the fluid, of water,(b) diethylene glycol,(c) from about 0.8 to about 5.0 percent by weight, based upon the total weight of fluid, of an aliphatic carboxylic acid having 9 to 12 carbon atoms,(d) a water-soluble polymeric viscosity control agent,(e) A corrosion inhibiting amount of at lease one corrosion inhibitor, and(f) a metal deactivator.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: August 8, 1989
    Assignee: Union Carbide Corporation
    Inventor: Walter E. F. Lewis
  • Patent number: 4853039
    Abstract: A process for making an aqueous pigment dispersion comprising substantially 100 percent .beta.-phase, isometric copper phthalocyanine pigment particles is carried out by activating a pigment crude, followed by fine-milling the activated crude in the presence of an emulsion, the fine-milling taking place in a stirring mill. The resulting pigment slurry is then isolated as an aqueous presscake.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: August 1, 1989
    Assignee: BASF Corporation
    Inventors: Thomas E. Donegan, John H. Bantjes, Timothy G. Leary
  • Patent number: 4851049
    Abstract: Thermostable bismuth vanadate/molybdate pigments are prepared by precipitating onto a pigment, obtained by calcination, of the formulaBi VO.sub.4 .cndot.Bi.sub.2 Mo O.sub.6where n is 0.2-2.5, in aqueous suspension at 70.degree.-100.degree. C. within the pH range from 4 to 9.5 a first SiO.sub.2 -containing layer using an alkali metal silicate solution of a magnesium hexafluorosilicate solution, maintaining the suspension at 70.degree.-100.degree. C. for not less than 1 hour, producing a thick coating on the precoated pigment by adding further alkali metal silicate solution, magnesium hexafluorosilicate solution or a mixture of the two within the pH range from 4 to 9.5, and finally depositing wax on the SiO.sub.2 -containing layer by means of a waxing emulsion/dispersion, the products showing, compared with the starting pigment, an appreciably improved thermal stability in plastics.
    Type: Grant
    Filed: December 9, 1987
    Date of Patent: July 25, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Henning Wienand, Werner Ostertag, Christoph Schwidetzky, Helmut Knittel
  • Patent number: 4849132
    Abstract: The surfactant composition of the present invention, which comprises mono acyl glycero phosphilipid(s) and one or more compounds selected from the group consisting of polyglycerol fatty acid esters, sucrose fatty acid esters, sorbitan fitty acid esters and glycerol fatty acid monoesters as essential components, exhibits excellent acid- and salt-resistances, permeability, emulsification and dispersion capabilities and hydrophilicity. Further it is highly safe and can be appropriately applied to various products, in particular, food, cosmetics and pharamceuticals.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: July 18, 1989
    Assignees: Asahi Denka Kogyo Kabushiki Kaisha, Nippon Shoji Kaisha, Ltd.
    Inventors: Satoshi Fujita, Eiji Nakai, Akira Noike
  • Patent number: 4849020
    Abstract: An improved asphalt composite utilizes a mixture of asphalt and a lossy microwave absorptive material normally in a granular form and dispersed homogeneously throughout the asphalt matrix. The use of a microwave material, particularly one having a Curie temperature in the range of about 100.degree. C., enhances removal, reconditioning and reforming the asphalt during patching or repair operations which rely upon microwave radiation heating.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: July 18, 1989
    Assignee: The Titan Corporation
    Inventors: Tracy L. Osborne, William R. Hutcheson
  • Patent number: 4846893
    Abstract: A process for producing a surface treated pigment wherein pigment particles are dispersed in a solution of a water soluble high polymer having radical generation sites to adsorb the water soluble high polymer on the surfaces of the pigment particles, adding a vinyl monomer to the resulting aqueous liquid dispersion of the pigment particles subjected to the adsorption treatment and polymerizing in the presence of a polymerization initiator, if desired, to form a polymer layer on the surfaces of the pigment particles. Formation of the white polymer particles composed only of polymer can be prevented and dispersion stability can be improved.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: July 11, 1989
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yutaka Akasaki, Naoya Yabuuchi, Tatsuro Ohki
  • Patent number: 4846892
    Abstract: A tetrachloroperylene-3,4,9,10-tetracarboxylic acid diimide pigment which contains not less than 85% by weight of the tetrachloro compound of the formula ##STR1## which is present to the extent of not less than 95% by weight in the .beta.-modification and which, in an X-ray spectrum, exhibits 2.sup..crclbar. CuK.sub..alpha. main lines at 9.0.degree., 13.3.degree., 15.0.degree., 16.8.degree., 19.1.degree., 21.5.degree., 24.2.degree., 25.4.degree., 26.5.degree., 27.0.degree. and 27.5.degree..In finishes, the pigment gives very brilliant colorations which are very highly lightfast and fast to weathering and which, upon weathering, neither bleach nor darken up.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: July 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Georg Henning, Erwin Hahn, Peter Hauser, Manfred Patsch
  • Patent number: 4844711
    Abstract: A hair colorant based oxidative dyes, in which colorant the alkaline pH necessary for coloring is not produced until during application by enzymatic methods, and a method of coloring hair.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: July 4, 1989
    Assignee: Beiersdorf AG
    Inventors: Udo Hoppe, Klaus Korbacher, Karl-Heinz Schrader
  • Patent number: 4842613
    Abstract: A non-metallic, inorganic surface, such as glass or ceramic is decorated by heat transfer printing a pattern of disperse dyes thereon. A silane primer is applied to the glass or ceramic surface to receive and bond thereto an organic polymeric resin. The disperse dyes are then heat transferred onto and retained by the polymeric resinous layer. Oxidation of the disperse dyes is prevented by applying a seal coat of a protective material such as lacquer, varnish, or clear resin. The sealant and/or polymeric resinous layer are further provided with an ultraviolet absorber. Frosting of the pattern of disperse dyes is achieved by mixing a flatting agent such as silica in the sealant.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: June 27, 1989
    Assignees: Terence Brook Purser, John Howell
    Inventor: Terence B. Purser
  • Patent number: 4842651
    Abstract: A pre-treatment of rough pigmentary mineral materials to eliminate the viscosifying effect of the swelling clays present in said materials used to condition said materials before refining them in an aqueous medium by abrasion or grinding. The method enables the production of refined pigmentary suspensions with a concentration of at least 75% by weight and low viscosity and stable over time. The pre-treatment agent is comprised of acid polymers and/or copolymers containing at least one carboxylate ethylenic monomer. Suspensions with high concentration of pigmentary mineral materials are prepared from the conditioned materials.
    Type: Grant
    Filed: January 28, 1988
    Date of Patent: June 27, 1989
    Assignee: Coatex S.A.
    Inventors: Georges Ravet, Catherine Bonnet, Jacques Mongoin
  • Patent number: 4840674
    Abstract: An improved ink composition comprised of a major amount of water; an organic solvent selected from the group consisting of tetramethylene sulfone; 1,1,3,3-tetramethyl urea; 3-methyl sulfolane; and 1,3-dimethyl-2-imidazolidone; which solvent has permanently dissolved therein spirit soluble dyes such as black, yellow, cyan, magneta, brown, and mixtures thereof.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: June 20, 1989
    Assignee: Xerox Corporation
    Inventor: William M. Schwarz
  • Patent number: 4839373
    Abstract: A composition comprising a quaternary ammonium compound and 2-(thiocyanomethylthio)benzothiazole. The composition can be useful as a microbicide and preservative for preventing the deterioration of various types of industrial raw materials and products by inhibiting the growth of microorganisms.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: June 13, 1989
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Yosuke Ito, Yasuhiro Nomura, Sakae Katayama
  • Patent number: 4836828
    Abstract: Fabrics constructed of high-modulus, high-tenacity, low-shrinkage polyamide fabrics are continuously dyed with acid dyes by applying at ambient temperatures a pad bath solution formulated to provide a continuous film on the fabric surface followed by drying and dry heat curing or thermosoling at elevated temperatures to fix the dye molecules inside the fibers.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: June 6, 1989
    Assignee: Burlington Industries, Inc.
    Inventor: Samir Hussamy
  • Patent number: 4836857
    Abstract: Asphalt additive compositions are described which comprise (A) a metallic organic strength improving compound and (B) an anti-strip compound. The metal of said metallic organic compound is selected from the group consisting of manganese, cobalt, copper, vanadium, molybdenum, cerium, iron, nickel, lead, zirconium, barium, calcium and zinc. The preferred metal is manganese. The anti-strip compound is designed to reduce water-induced damage to asphalt paving mixtures.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: June 6, 1989
    Assignee: The Lubrizol Corporation
    Inventor: David L. Hopkins