Opacifiers For Enamels Patents (Class 106/312)
  • Patent number: 10018575
    Abstract: A soda-lime-silica glass container and related methods of manufacturing. A black-strikable glass composition having a base glass portion and a latent colorant portion is prepared. The base glass portion includes soda-lime-silica glass materials and one or more blue colorant materials, and the latent colorant portion includes cuprous oxide (Cu2O), stannous oxide (SnO), bismuth oxide (Bi2O3), and carbon (C). Glass containers may be formed from the black-strikable glass composition, and these glass containers may be heated to a temperature greater than 600 degrees Celsius to strike black therein. The glass containers formed from the black-strikable glass composition may be inspected—before or after striking—by infrared inspection equipment.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: July 10, 2018
    Assignee: Owens-Brockway Glass Container Inc.
    Inventors: Roger P. Smith, Carol A. Click, Rebecca Mullen, Stephen Daniel Barton
  • Patent number: 9314003
    Abstract: The present invention relates to the field of deodorizers. More particularly, embodiments of the invention include plasticized cellulosic materials impregnated with zinc ricinoleate and in the form of replaceable hang tags and/or deodorizer inserts useful for suppressing, treating, or preventing offensive and/or undesirable odors. Particular embodiments of the invention include a solid plastic biodegradable deodorizer composition comprising: a cellulose acetate based substrate having at least 96% biodegradability; and a malodor neutralizer capable of forming a complex with one or more nitrogen- or sulfur-containing compounds and chosen from zinc ricinoleate, zinc chloride, zinc gluconate, zinc lactate, zinc maleate, zinc salicylate, zinc sulfate, and mixtures thereof, which is impregnated into the substrate up to approximately 20% of the weight of the substrate.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: April 19, 2016
    Inventor: Kathy Morris
  • Patent number: 8038787
    Abstract: The present invention relates to coating formulations comprising surface-modified silicon dioxides. The coating formulations are useful in applications such as architectural paints for buildings, windows and doors.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: October 18, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Hans-Dieter Christian, Reinhard Behl, Hans-Werner Köhler, Jürgen Meyer
  • Patent number: 7611575
    Abstract: The present invention relates to coarse calcined kaolin slurries having a high solids content. The invention also relates to methods of making such slurries. The resulting slurries can have a solids content of at least about 58% by weight wherein at least about 40% by weight of the calcined kaolin particles has a particle size of at least about 1 ?m. The slurries can be stabilized where the solids show little settling from suspension. The slurries have many uses, including fillers or extenders in paint and coating compositions for paper or paper board. More generally, the inventive products may be used wherever calcined kaolins are used. The present invention also related to coarse calcined kaolin slurries having a multimodal particle size distribution and a high solids content.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: November 3, 2009
    Assignee: Imerys Pigments, Inc.
    Inventors: Edward J. Sare, Tommy L. Adkins, Stephen C. Raper
  • Patent number: 6774562
    Abstract: The invention refers to an enamel composition for producing reflecting dielectric layers in plasma display panels, comprising as layer forming constituents 70 to 97% by wt. of a glass frit composition and 3 to 30% by wt. of a particulate whitening material. The whitening material comprises one or more thermally deactivated white pigments, which have been made by a process comprising heating of at least one white pigment in the absence or presence of a glass frit having a softening temperature of less than 600° C. at a temperature of 600 to 1000° C. for 0,1 to 10 hours. The invention further refers to a method for improving the wettability of white pigments by the above said thermal treatment. The enamel is used for producing a reflecting white dielectric layer in plasma display panels.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: August 10, 2004
    Assignee: dmc
    Inventors: Guy Roche, Annette Gorse
  • Patent number: 6395247
    Abstract: The precipitated silica has the following physico-chemical parameters: BET surface area (DIN 66131) in m2/g 400-600 DBP index (DIN 53601) in g/100 g 300-360 Compacted density (DIN 53194) in g/l  70-140 Grindometer value (ISO 1524) in &mgr;m 15-50 Size distribution index I <1.0 measured with a Malvern instrument Size distribution index I = d 90 - d 10 2 ⁢ d 50 This precipitated silica is prepared by milling a precipitated silica in accordance with DE-A 31 44 299 in a classifier mill or a fluidized bed counter-flow mill. A polyethylene wax emulsion may be added before the milling procedure.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: May 28, 2002
    Assignee: Degussa AG
    Inventors: Mustafa Siray, Jochen Scheffler
  • Patent number: 6383280
    Abstract: The precipitated silica has the following physico-chemical parameters: BET surface area (DIN 66131) in m2/g 400-600 DBP index (DIN 53601) in g/100 g 300-360 Compacted density (DIN 53194) in g/l  70-140 Grindometer value (ISO 1524) in &mgr;m 15-50 Size distribution index I <1.0 measured with a Malvern instrument Size ⁢   ⁢ distribution ⁢   ⁢ index ⁢   ⁢ I = d 90 - d 10 2 ⁢ d 50 This precipitated silica is prepared by milling a precipitated silica in accordance with DE-A 31 44 299 in a classifier mill or a fluidized bed counter-flow mill.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: May 7, 2002
    Assignee: Degussa-Huls AG
    Inventors: Mustafa Siray, Jochen Scheffler
  • Patent number: 6261356
    Abstract: The present invention provides an additive for asphalt which causes an improvement in anti-stripping effect of asphalt from aggregates, and exhibits the effect quickly. That is, the present invention provides an asphalt-additive composition comprising (A) a specific acidic phosphoric acid compound, and (B) at least one member selected from the group consisting of mineral oil, alcohol having 8 to 18 carbon atoms, carboxylic acid having 8 to 18 carbon atoms and triglyceride thereof; with the proviso that the amount of the (B) component is 25-400 parts by weight per 100 parts by weight of the (A) component.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: July 17, 2001
    Assignee: Kao Corporation
    Inventors: Kazuo Isobe, Ryoichi Tamaki, Keiichiro Tomioka
  • Patent number: 6124377
    Abstract: A marking system that advantageously minimizes messiness during use is disclosed. The marking system comprises a marking composition comprising at least one color precursor in the form of a leuco dye. A marking instrument can be utilized to store the marking composition and/or apply the marking composition to a desired substrate. The substrate is provided with a coating comprising at least one color-triggering developer. Upon application of the leuco dye to the substrate, a chromophore, and hence, color, is formed. If, however, color is inadvertently triggered on an unintended surface, thereby resulting in an unwanted stain, the stain can be readily removed.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: September 26, 2000
    Assignee: Binney & Smith Inc.
    Inventors: Richard J. Kaiser, Arthur N. Urbanski
  • Patent number: 5998030
    Abstract: Spherical particles having a diameter between 0.007" and 0.040" are formed from melt extruded thermoplastic material formed of blended and melt extruded thermoplastic and pigment.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: December 7, 1999
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 5935308
    Abstract: A latent image printing process by applying to a substrate a latent image ink composition containing zinc bromide with an ink jet printer. Subsequently, the latent image is activated to render it visible, by application of an activator.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: August 10, 1999
    Assignee: Videojet Systems International, Inc.
    Inventors: Mohammed W. Siddiqui, Bruce A. Lent
  • Patent number: 5707436
    Abstract: Prior art production of purple pigments based on colloidal gold on stovable/sinterable/fireable support material involves the reduction of a gold compound in the presence of a chemical reducing agent.Purple pigments may be produced more simply according to the invention by intimately mixing and/or grinding the support material and the gold compound in dry form or by bringing an aqueous solution or suspension of a gold compound and a support material into contact and then thermally treating the mixture at a temperature above the decomposition temperature of the gold compound and below the sintering temperature of the support material, wherein the gold compound is converted into colloidal gold.
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: January 13, 1998
    Assignee: Cerdec Aktiengesellschaft Keramische Farben
    Inventors: Klaus-Dieter Fritsche, Bernd Dorbath, Norbert Giesecke, Kerstin Ruhnau
  • Patent number: 5662735
    Abstract: This invention relates to a solution for detecting counterfeit paper currency. The solution contains iodine at a concentration of from 0.005 to 3 grams/liter and one or more solvents selected from the groups consisting of: alcohols, ketones, polyalcohols, esters, ethers, or mixtures thereof of solvents belonging to the same group or to several groups of these solvents. The solvent, if miscible with water, contains distilled water in a ratio of from 99:1 to 1:99 parts by volume. If not miscible in water, the solvent is saturated with distilled water at a temperature of 20.degree. C. The solution is preferably contained in ballpoint pens, fountain pens or other similar dispensers which are then used to countersign the paper currency. A counterfeit currency will cause a visible line to appear on the currency, in about one minute. However, in the case of genuine paper currency, the drawn line of solution does not change color and disappears completely from the countersigned currency.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: September 2, 1997
    Inventor: Piergiorgio Pifferi
  • Patent number: 5654102
    Abstract: Sperhical particles having a diameter between 0.007" and 0.040" are formed from melt extruded thermoplastic material formed of blended and melt extruded thermoplastic and pigment.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: August 5, 1997
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 5637552
    Abstract: A process is described for producing neutral to alkaline color developer pigments for use in carbon-free transfer papers from an acid-activated smectic phyllosilicate and basically reacting chemicals. The process is characterized in that the acid-activated phyllosilicate with a layer structure which is essentially still intact is reactive without intermediate drying with the basically-reacting chemicals up to partial or complete decomposition of the amorphous silicic acid formed on the corners and edges of the phyllosilicate crystallites without significant re-exchange of the hydronium ions inserted between the layers of the phyllosilicate by alkali or earth alkali ions.The color developer pigments can be used in suspensions with concentrations from 30 to 50% by weight, preferably from roughly 38 to 48% by weight.
    Type: Grant
    Filed: June 13, 1995
    Date of Patent: June 10, 1997
    Assignee: Sud-Chemie A.G.
    Inventors: Reinhard Hahn, Friedrich Ruf
  • Patent number: 5238881
    Abstract: A colored ceramic glaze is prepared from a raw glaze containing glass frit, clay and one or more ceramic pigments added as an aqueous dispersion. The raw glaze is ball-milled after which it is blended with the aqueous dispersion. The dispersion contains up to 70% of a ceramic pigment, such as zirconium-vanadium yellow, preferably with 1% to 3% of a suspending agent, up to about 1.5% of a thickener, an effective amount, but no more than 1% of a dispersant, and a biocide as needed. The suspending agent preferably is attapulgite clay or a water-swellable smectite clay. The thickener is preferably a xanthan gum and the dispersant is typically an ammonium salt of a medium molecular weight polymethacrylic acid. A stronger, more intense color is achieved by adding the ceramic pigment as a dispersion as opposed to ball-milling it with the glass frit as has been the traditional approach.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: August 24, 1993
    Assignee: Engelhard Corporation
    Inventor: Jeffrey J. Norris
  • Patent number: 5219538
    Abstract: The present invention relates to the production of lipid vesicles having a moderately volatile material such as a perfluorocarbon or a silicone oil encapsulated therein. In another aspect, lipid vesicles having a gas-filled center or core are made. The lipid vesicles having gas-filled central core are made by dehydrating vesicles having the moderately volatile liquid encapsulated in the central core. This drives off the water first, allowing the moderately volatile liquid to stabilize the vesicle structure as it dries, finally forming a central void which can refract light. The preferred vesicles of the invention are paucilamellar vesicles.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: June 15, 1993
    Assignee: Micro-Pak, Inc.
    Inventors: Sheryl L. Henderson, Donald F. H. Wallach, Rajiv Mathur
  • Patent number: 4572869
    Abstract: Air-containing microcapsular opacifiers, optionally containing pigment particles incorporated in the microcapsular structure, have substantially continuous, organic polymeric solid walls and a particle diameter of about 0.5 micron to about 10 microns, e.g., less than 1 or 2 microns. The opacifiers are produced by heating precursor microcapsules containing a liquid core material to a temperature sufficient to substantially drive off the core material from the precursor microcapsules and replace it with air.
    Type: Grant
    Filed: July 12, 1974
    Date of Patent: February 25, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Marco Wismer, Jerome A. Seiner
  • Patent number: 4446241
    Abstract: Glass frits for use in glazes or enamels have fiber softening point about 535.degree.-609.degree. C. are free of lead, cadmium and zinc and consist essentially of Li.sub.2 O-B.sub.2 O.sub.3 -SiO.sub.3 plus 2-23% SnO.sub.2 +CaO and 2-23% ZrO.sub.2 +La.sub.2 O.sub.3 ; also, Al.sub.2 O.sub.3, SrO, BaO, Na.sub.2 O, F.Low expansion filler, e.g., B-eucryptite, may be used at 4 to 15% by weight of glass frit.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: May 1, 1984
    Assignee: Owens-Illinois, Inc.
    Inventors: Josef Francel, Daniel R. Stewart, Uriah Horn
  • Patent number: 4097302
    Abstract: Silica flatting agents having improved flatting and settling characteristics and which impart improved mar resistance to certain coatings are prepared by treating a silica hydrogel in the absence of dispersion or emulsifying agents with up to 14 parts by weight of specific mixtures of microcrystalline waxes and synthetic waxes in the respective ratios of from 1:1.5 to 1:12.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: June 27, 1978
    Assignee: SCM Corporation
    Inventors: Howard Joseph Cohen, Francis Michael Vojik
  • Patent number: 4089800
    Abstract: Void-containing microcapsules are prepared by a method featuring gellation of an organic polymer with the simultaneous precipitation of an organic liquid non-solvent. The method involves the preparation of a solution containing an organic polymer, a good solvent for the polymer and an organic liquid non-solvent which is miscible with the polymer solvent. The solution is then atomized into a bath containing a liquid which is miscible with the good polymer solvent but which is immiscible with the organic liquid non-solvent. The bath liquid extracts out the good polymer solvent, causing gellation of polymer around discrete droplets of the organic liquid non-solvent, which simultaneously precipitates out of the solution as the good polymer solvent is extracted, thereby producing microcapsules having encapsulated therein the non-solvent. The organic liquid non-solvent can then be removed as by evaporation to provide void-containing microcapsules.
    Type: Grant
    Filed: April 4, 1975
    Date of Patent: May 16, 1978
    Assignee: PPG Industries, Inc.
    Inventor: Rodger G. Temple
  • Patent number: 4089834
    Abstract: Microcapsules having controlled structural integrity are produced by a process which involves admixing a thermosetting condensation polymer-containing oily solution and a polymer-containing aqueous solution and causing a chemical reaction between the polymers at the resulting oil/water interface. The so-formed microcapsules have excellent water resistance and may be employed in the formation of opacifying agents in coatings and particularly in paint films.
    Type: Grant
    Filed: January 11, 1973
    Date of Patent: May 16, 1978
    Assignee: Champion International Corporation
    Inventor: Mabrin P. Powell
  • Patent number: 4064294
    Abstract: Microcapsules are produced in-situ in a film or during the manufacturing process of a water-based coating composition from which the film is formed. A principal process involves the in-situ production of void-containing microcapsules in a film formed from a water-based coating. This principal process involves as a first step the preparation of a polymer composition which may be a homogeneous solution containing a water-immiscible organic polymer, a water-immiscible solvent for the polymer, and a water-immiscible lower volatility non-solvent which is miscible with the solvent; or an emulsion containing as the continuous phase a water-immiscible organic polymer dissolved in a water-immiscible solvent for the polymer and, as the discontinuous phase, droplets of a lower volatility non-solvent dispersed in the continuous phase. This polymer composition is then emulsified under agitation and in the presence of a surfactant into a water-based coating composition.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: December 20, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Simon Babil, James A. Claar, Rodger G. Temple