Wax, Paraffin, Bituminous Material, Asphalt, Oil Shale, Tar Or Pitch Containing Patents (Class 106/502)
  • Patent number: 7153353
    Abstract: A carnuba silicone wax which does not contain free silicone oil. This wax is obtained by reacting a silicone compound having a substituent with reactivity to the hydroxyl group in natural carnuba wax, with this hydroxyl group. A carboxyl group may be introduced into the molecule by reacting this hydroxyl group with a cyclic acid anhydride, and a silicone compound having a group which can react directly with this carboxyl group is made to react. Alternatively, a hydrogen silicone may be hydrosilylated by a double bond introduced by reacting an epoxy compound having a double bond with this carboxyl group.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: December 26, 2006
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Shoji Ichinohe
  • Patent number: 7056379
    Abstract: A pearlizing composition containing: (a) from about 20 to 45% by weight of a pearlizing wax; (b) from about 0.1 to 6% by weight of an anionic surfactant; (c) from about 0.1 to 8% by weight of a polyol ester; (d) optionally, a surfactant selected from the group consisting of a zwitterionic surfactant, an amphoteric surfactant, and mixtures thereof; and (e) water, all weights being based on the weight of the composition, and wherein (a) and (c) are present in the composition in a ratio by weight of from about 12:1 to 7:1, and wherein (c) and (b) are present in the composition in a ratio by weight of from about 2:1 to 0.8:1.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: June 6, 2006
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Claus Nieendick, Heike Kublik, Josef Koester, Michael Lieu
  • Patent number: 6846356
    Abstract: Pigment concentrates comprising at least one pigment and one polyolefin wax prepared from one or more olefins by catalysis with a single-site catalyst comprising a transition metal of groups 5 to 8 of the Periodic Table, where the complex contains not more than one cyclopentadienyl system per transition metal atom, the concentrates comprising a thermoplastic, if desired, and additives, if desired.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: January 25, 2005
    Assignee: BASF Aktiengesellschft
    Inventors: Shahram Mihan, Andreas Deckers
  • Patent number: 6818050
    Abstract: Paint and coating material system comprising a) at least one solids component comprising at least one organic or inorganic white, black or chromatic pigment, organic or inorganic fillers, or mixtures thereof, and b) at least one binder component, characterized in that the components of the system in water, with a specific energy input of less than 150 J/cm3, based on the sum of the volumes of the components and water, produced an aqueous dispersion having a particle size of <60 &mgr;m (determined in accordance with ISO 1524: 1983).
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: November 16, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventor: Peter-Roger Nyssen
  • Patent number: 6812274
    Abstract: Pigment concentrates comprising at least one pigment, a polyethylene wax prepared from one ethylene and, if desired, one comonomer using a metallocene catalyst, if desired a thermoplastic polymer and, if desired, additives can be used to color plastic moldings and plastic sheets.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: November 2, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Deckers, Wilhelm Weber, Stefan Weiss, Naria Edlu Keene von Koenig
  • Publication number: 20040214927
    Abstract: Color concentrate compositions are disclosed, which contain colorant(s), binder, and polymer compatible with the base polymer to which the concentrate is intended to be added. The colorant is preferably one or more pigments. The compatible polymer preferably is the same polymer as the base polymer, although not necessarily the same molecular weight. The binder also serves as a surfactant to protect the compatible polymer. The presence of the compatible polymer in the concentrate enhances pellet integrity and adds the function of rheology modification to the base polymer when the concentrate is added.
    Type: Application
    Filed: January 23, 2004
    Publication date: October 28, 2004
    Inventor: Norman E. Nitzsche
  • Publication number: 20040186204
    Abstract: An aqueous tar solution having excellent stability in which tar is dissolved in a liquid and which does not cause precipitation or separation, as well as a tar-containing coating composition having highly rot- and termite-proofing effects, are provided. The aqueous tar solution is obtained by mixing 10 to 50 g of a 10-50% NaOH solution is mixed, relative to 100 g of tar, to produce a processed tar, and further mixing and dissolving 100 g of a 2-5% NaOH solution, relative to 10 to 20 g of the processed tar. The tar-containing coating composition is obtained by mixing the aqueous tar solution in an aqueous coating composition having resin as the major component and containing charcoal powder.
    Type: Application
    Filed: January 8, 2004
    Publication date: September 23, 2004
    Inventors: Michiharu Yoshimatsu, Yuzuru Suetaka
  • Patent number: 6780234
    Abstract: The invention pertains to pigment granulates for the coloring of asphalt, bitumen, bituminous materials, tar, and plastics as well as processes to manufacture such granulates. The mixture to be granulated comprises a mixture containing one or more pigments, at least one agent to promote the coloring and distribution in homopolar media and/or at least one dispersant for polar system as well as one or more solvents if necessary.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: August 24, 2004
    Assignee: Brockhues GmbH & Co KG
    Inventors: Christian Egger, Klaus Nungess, Adolf Veit, Stefan Vogler
  • Patent number: 6770128
    Abstract: A matting agent composition comprises silica and wax wherein the composition has a median particle size in the range of about 2-12 microns, a wax content in the range of about 15-30 wt. % and the silica has a pore volume in the range of about 0.8 to 1.4 cc/g. The matting agent is particularly suitable for radiation curable coatings. The matting agent has been shown to be particularly efficient in such coatings, as well as shows consistent gloss over varying coat weights.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: August 3, 2004
    Assignee: Grace GmbH & Co. KG
    Inventors: Georg Lueers, David Joseph Kent, Volker Petry, Ute Pospesch
  • Publication number: 20040143040
    Abstract: Dispersible pigment granules are produced by mixing an aqueous suspension of an organic pigment with an aqueous emulsion of a wax-like additive. The aqueous emulsion is then allowed to coagulate and the resulting aqueous dispersion is spray dried.
    Type: Application
    Filed: November 5, 2003
    Publication date: July 22, 2004
    Inventors: Hans Joachim Metz, Andreas Stohr, Heinfred Ohleier
  • Patent number: 6761764
    Abstract: The invention provides for the use of mixtures of waxes which comprise a) a homopolymer or copolymer of C2-C18 &agr;-olefins, prepared by means of metallocene catalysis, and, as auxiliaries, one or more other waxes selected from the group consisting of b) PE waxes, c) PTFE waxes, d) PP waxes, e) amide waxes, f) FT paraffins, g) montan waxes, h) natural waxes, i) macrocrystalline and microcrystalline paraffins, j) polar polyolefin waxes, or k) sorbitan esters for improving the properties of coating materials.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: July 13, 2004
    Assignee: Clariant GmbH
    Inventors: Ernst Krendlinger, Franz-Leo Heinrichs, Dieter Nowicki
  • Publication number: 20040089201
    Abstract: Pigment concentrates comprising at least one pigment and one polyolefin wax prepared from one or more olefins by catalysis with a single-site catalyst comprising a transition metal of groups 5 to 8 of the Periodic Table, where the complex contains not more than one cyclopentadienyl system per transition metal atom, the concentrates comprising a thermoplastic, if desired, and additives, if desired.
    Type: Application
    Filed: December 16, 2002
    Publication date: May 13, 2004
    Inventors: Shahram Mihan, Andreas Deckers
  • Patent number: 6706110
    Abstract: The invention pertains to pigment granulates for the coloring of asphalt, bitumen, bituminous materials, tar, and plastics as well as processes to manufacture such granulates. The mixture to be granulated comprises a mixture containing one or more pigments, at least one agent to promote the coloring and distribution in homopolar media and/or at least one dispersant for polar systems as well as one or more solvents if necessary.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: March 16, 2004
    Assignee: Brockhues GmbH & Co., KG
    Inventors: Christian Egger, Klaus Nungess, Adolf Veit, Stefan Vogler
  • Publication number: 20030176558
    Abstract: A powder coating compositions incorporates a wax in post-blended form, the composition incorporating the wax and the same composition without the wax being separated, preferably widely separated, in a triboelectric reference series indicative of the extent to which powder coating compositions may be distinguishable from one another when electrically charged. The powder coating compositions incorporating a wax in post-blended form is especially suitable for coating articles having recessed portions. A quantitative basis is given for determining separation in the triboelectric reference series, and preferred minimum separation criteria are given. The effects obtainable using post-blended wax may be enhanced by the use, as further post-blended additives, of a combination of aluminium oxide and aluminium hydroxide.
    Type: Application
    Filed: December 12, 2002
    Publication date: September 18, 2003
    Inventors: Martyn P Care, Paul J Tinmouth, Jae-Kyn Park
  • Publication number: 20030154885
    Abstract: The invention provides for the use of mixtures of waxes which comprise
    Type: Application
    Filed: November 1, 2002
    Publication date: August 21, 2003
    Inventors: Ernst Krendlinger, Franz-Leo Heinrichs, Dieter Nowicki
  • Publication number: 20030121453
    Abstract: A matting agent for paint which achieves a great matting effect even when added in a small amount to an energy beam-hardening paint compound and an energy beam-hardening paint compound containing the matting agent for paint. While micronized silica is stirred in a mixer, a solution consisting of chloroform and beeswax dissolved therein is sprayed on the micronized silica with a sprayer. The micronized silica after the spraying is stirred in the mixer for ten minutes and is dried in a dryer at a temperature of 70° C. After pulverizing aggregates using a compact air mill, a matting agent comprising 100 weight parts of micronized silica coated with 12 weight parts of beeswax is obtained. When dispersed in an epoxy acrylate resin-based paint, the matting agent achieves a great matting effect with a substantially small addition compared with a conventional matting agent.
    Type: Application
    Filed: December 18, 2002
    Publication date: July 3, 2003
    Inventors: Shiro Iwahashi, Ryou Okada
  • Patent number: 6572695
    Abstract: A bismuth oxychloride effect pigment has a carbon black particulate at about the surface of the crystals of the bismuth oxychloride. The pigment is prepared by, for instance, growing the bismuth oxychloride crystals, and adding the particulate before the hydrolysis is complete.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: June 3, 2003
    Assignee: Engelhard Corporation
    Inventor: Paul B. Cao
  • Patent number: 6551397
    Abstract: The present invention relates to a pigment preparation comprising BiOCl pigments, one or more luster pigments and spherical particles, and to the use thereof in printing inks, security printing inks, surface coatings, paints, plastics and in cosmetic formulations.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: April 22, 2003
    Assignee: Merck Patent GmbH
    Inventors: Joachim Weitzel, Wolfgang Hechler
  • Publication number: 20030047116
    Abstract: The invention pertains to pigment granulates for the coloring of asphalt, bitumen, bituminous materials, tar, and plastics as well as processes to manufacture such granulates. The mixture to be granulated comprises a mixture containing one or more pigments, at least one agent to promote the coloring and distribution in homopolar media and/or at least one dispersant for polar systems as well as one or more solvents if necessary.
    Type: Application
    Filed: January 28, 2002
    Publication date: March 13, 2003
    Inventors: Christian Egger, Klaus Nungess, Adolf Veit, Stefan Vogler
  • Publication number: 20030019400
    Abstract: Pigment concentrates comprising at least one pigment, a polyethylene wax prepared from one ethylene and, if desired, one comonomer using a metallocene catalyst, if desired a thermoplastic polymer and, if desired, additives can be used to color plastic moldings and plastic sheets.
    Type: Application
    Filed: June 5, 2002
    Publication date: January 30, 2003
    Inventors: Andreas Deckers, Wilhelm Weber, Stefan Weiss, Naria Edlu Keene von Koenig
  • Patent number: 6485558
    Abstract: The invention relates to a process for the preparation of pigment granules, which comprises adding a wax or a waxy polymer to an organic pigment during the finish in an organic or aqueous organic medium and spray-drying the aqueous suspension obtained after removal of the organic solvent by steam distillation or washing out with water.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: November 26, 2002
    Assignee: Clariant GmbH
    Inventors: Hans Joachim Metz, Heinfred Ohleier
  • Patent number: 6479036
    Abstract: Silica particles for incorporation into a dentifrice composition, preferably as a thickening agent, have a polyether glycol such as polyethylene glycol applied thereto in order to enhance dentifrice cohesion
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: November 12, 2002
    Assignee: Crosfield Limited
    Inventors: Peter W Stanier, Charlotte R Evans
  • Patent number: 6451102
    Abstract: The present invention is directed to a process for producing a master batch of pigment, comprising mixing a pigment having a high aspect ratio, embedded in a material increasing bulk density of the pigment, with a plastic so as to produce a dispersion of pigment and plastic.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: September 17, 2002
    Assignee: Merck Patent GmbH
    Inventors: Robin Hilder, Manfred Kieser
  • 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: 6362257
    Abstract: The pavement patch composition of the present invention comprises a lightweight aggregate and highly modified polymer asphalt binder. The composition is formed by heating the binder to a flowable state, mixing the flowable binder with a lightweight aggregate, and then allowing it to cool into a solid form. The pavement patch composition is used to repair voids in pavement, such as pot holes, cracks and depressions. It is applied by heating solid pavement patch composition to a flowable state and applying it to the void, or on a surface in need of repair, and then allowed to cool. The resulting patch is self-adhering, strong and flexible. The formulation of the pavement patch composition may be adjusted for specific use in a cold climate, a moderate climate, a warmer climate, or for use in various traffic applications.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: March 26, 2002
    Assignee: Crafco, Incorporated
    Inventors: James G. Chehovits, Robert Lowell Parkison
  • Patent number: 6280516
    Abstract: A filler composition comprising a filler material and a hydrocarbonaceous material having a volatility of less than or equal to 5% at 200° and a time of 2 hours. The hydrocarboneous material may comprise a bituminous material comprising bitumen, oxibitumen, or mixtures thereof; petroleum/oil cracker residue bottoms, for example ethylene cracker residues (ECR); carbon black feedstock fuels comprising less than or equal to 5%, by weight, sulfur and having a molar hydrogen to carbon ratio between 0.90:1 and 1.10:1; linear or cyclic condensation products comprising an aromatic alcohol, for example, phenol, catechol, resorcinol, naphthol, and an aldehyde, for example formaldehyde, preferably where the aromatic alcohol is present in a molar excess; or mixtures thereof.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: August 28, 2001
    Assignee: Cabot Corporation
    Inventors: Maurizio Lucchi, Theo Al, Thomas F. Reed, Robert S. Whitehouse
  • Patent number: 6214081
    Abstract: The hot repair mix according to the present invention comprises bisphenol as an auxiliary fluidizing agent in an amount of 1 to 20 weight parts and a material to form carbon bond in hot working process in an amount of 5 to 40 weight parts to 100 weight parts of a refractory material. It has satisfactory properties such as spreading property, hardenability, adhesive property, property of the finished portion in hot working process, and this leads to improvement of durability of the baking material. Moreover, there is no change over time such as solidification, sedimentation separation, etc. in summer season, and it can be easily transported and stored. Because of easy handling and good workability of this material, baking operation can be accomplished within short time, and it is very useful as a hot repair mix for repairing various types of refinery furnaces, molten metal containers, etc. in hot working process.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: April 10, 2001
    Assignee: Shinagawa Refractories Co., Ltd.
    Inventors: Hiroshi Takenaka, Shuzo Horita, Toshihiko Akizuki, Yoshiaki Osaki
  • Patent number: 6120593
    Abstract: The hot repair mix according to the present invention comprises p-alkylphenol as an auxiliary fluidizing agent in an amount of 1 to 20 weight parts and a material to form carbon bond in hot working process in an amount of 5 to 40 weight parts to 100 weight parts of a refractory material. It has satisfactory properties such as spreading property, hardenability, adhesive property, property of the finished portion in hot working process, and this leads to improvement of durability of the baking material. Moreover, there is no change over time such as solidification, sedimentation separation, etc. in summer season, and it can be easily transported and stored. Because of easy handling and good workability of this material, baking operation can be accomplished within short time, and it is very useful as a hot repair mix for repairing various types of refinery furnaces, molten metal containers, etc. in hot working process.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: September 19, 2000
    Assignee: Shinagawa Refractories Co., Ltd.
    Inventors: Hiroshi Takenaka, Shuzo Horita, Toshihiko Akizuki, Yoshiaki Osaki
  • Patent number: 6117225
    Abstract: A process of producing a non-conductive ink formed from colorant particles and a non-conductive carrier liquid where the colorant particles are inherently of a low electrical resistivity. The process includes the steps of applying to the surface of the colorant particles a material with a high electrical resistivity to give the particle a higher surface resistivity and blending the treated colorant particle with the non-conductive carrier to form the non-conductive ink. The insulative material may be selected from polymers, waxes, organic pigments and dye stuffs and the colorant may be carbon black, magnetic iron oxide or metallic powder.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: September 12, 2000
    Assignee: Tonejet Corporation Pty Ltd.
    Inventor: Stephen Lansell Nicolls
  • Patent number: 6037000
    Abstract: The present invention is to a process for producing a matrix particle of a colored lake or dye which matrix reduces the leeching or bleeding of the colored lake or dye into the surrounding medium. The present inventive process is particularly useful in toothpaste formulations.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: March 14, 2000
    Assignee: SmithKline Beecham Corporation
    Inventors: Howard Chang, Indrajit N. Desai, Arthur Vinen
  • Patent number: 5954871
    Abstract: A composite melanin pigment in the form of particles comprising a spherical core less than 1 .mu.m in diameter, which comprises at least one wax and at least one surfactant, and an outer layer which envelops the core, which comprises at least one compound resulting from the oxidative polymerization of a melanin pigment precursor; and uses of the pigment in powder form or in the form of an aqueous dispersion, in cosmetic compositions, in particular in dye products and/or make-up products and/or care products for keratin substances such as the skin, the hair and the nails.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: September 21, 1999
    Assignee: L'OREAL
    Inventors: Luc Nicolas-Morgantini, Alain Lety, Guy Vanlerberghe
  • Patent number: 5919573
    Abstract: A process for the bituminous coating of any supports by providing a cold coating of the supports by bituminous emulsions, comprising first obtaining a hydrophobic powder of positive electric charge by the conjoint action of a metallic salt soluble in water and a long chain organic acid, then introducing this powder, either into a mass of the supports to be coated, or into a bituminous anionic emulsion and then mixing the supports and bituminous emulsion in a mixer so as to effect cold coating. An anionic emulsion is mixed with a hydrophobic powder of positive electric charge so as to confer on the emulsion a cationic behavior and coating and covering properties.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: July 6, 1999
    Inventors: Emile Jacques Muntzer, Paul Emile Muntzer, Jean Muntzer, Isabelle Muntzer
  • Patent number: 5800605
    Abstract: A process for the preparation of electrostatically charged particles of a high resistivity material which process comprises incorporating a unipolar charge into the material at a temperature at or above the glass transition temperature thereof or above the melting point thereof, the said unipolar charge being incorporated into the bulk of the material and the charged material being subsequently comminuted, or the said charge being incorporated into the material while forming particles thereof.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: September 1, 1998
    Assignee: University of Southampton
    Inventor: John Farrell Hughes
  • Patent number: 5735944
    Abstract: This invention relates to free flowing additive preparations, particularly for powder coatings, which can be obtained by incorporating one or more liquid or viscous-adhesive additives in a wax melt consisting of one or more waxes, cooling the mixture obtained to a temperature below its melting point, and comminuting the solidified mixture or converting the mixture which is still liquid into a finely divided form and cooling the particles obtained. The invention also relates to a process for producing such preparations and to their use.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: April 7, 1998
    Assignee: BYK-Chemie GmbH
    Inventors: Karlheinz Haubennestel, Alfred Bubat
  • Patent number: 5558705
    Abstract: A colored metallic pigment composition includes metallic particles which have been treated with a mixture of pigment particles and wax. A polymeric shell is formed on the treated metal particles by means of an organometallic coupling agent. The coupling agent includes a readily-hydrolyzable group which is capable of binding to the metal particle surface, and a relatively non-hydrolyzable group which serves as a binding site for the polymeric shell.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: September 24, 1996
    Assignee: Silberline Manufacturing Co., Inc.
    Inventors: Craig B. Keemer, Walter S. Halbach, William G. Jenkins, Russell L. Ferguson
  • Patent number: 5542974
    Abstract: This invention relates to shaped, non-dusting, non-sticking, free-flowing masticating agents based on 2,2'-dibenzoamidodiphenyl disulphide and paraffins having a solidification point in the range from 50.degree. to 85.degree. C., a needle penetration of 8 to 25 in 1/10 mm, a viscosity of 2 to 10 mm.sup.2 /s. The masticating agents according to the invention are used to reduce the viscosity of rubbers containing double bonds and are customarily used in quantities of 0.01 to 3 parts by weight.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: August 6, 1996
    Assignee: Bayer AG
    Inventor: Hartmuth Buding
  • Patent number: 5525152
    Abstract: The present invention relates to a process for coloring polymeric materials by dyeing or pigmenting said polymeric materials with a pigment salt having the formula (I): ##STR1## and tautomeric forms thereof, wherein M.sup.n+ is an n-valent cation.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: June 11, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Roschger, Stephan Michaelis, Gunther Franke, Bernd Woost, Bernd Kaletta
  • Patent number: 5472498
    Abstract: A lightweight aggregate comprising free-flowing particles of a polymer foam coated with a binding agent having dispersed therein, in total, at least 10% by weight thereof of one or more transition metal ions.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: December 5, 1995
    Assignee: BST Holdings PTY. Limited
    Inventors: Neville C. Stephenson, Gary P. Norton
  • Patent number: 5451254
    Abstract: The invention relates to a dispersion of melanic pigments containing in a medium selected amongst: a) the straight or branched monoalcohols comprising at least 3 carbon atoms; the straight or branched polyols comprising at least 2 carbon atoms; the saturated or unsaturated cycloaliphatic alcohols comprising at least 6 carbon atoms; the aromatic alcohols comprising at least 6 carbon atoms; the C.sub.8 -C.sub.22 fatty acid esters and C.sub.1 -C.sub.6 alcohol esters or the C.sub.2 -C.sub.6 polyol esters; the C.sub.1 -C.sub.6 aliphatic acid esters or the C.sub.8 -C.sub.22 aromatic acid and fatty alcohol esters; the C.sub.8 -C.sub.22 fatty acid esters and the C.sub.8 -C.sub.22 fatty alcohol esters, the C.sub.6 -C.sub.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: September 19, 1995
    Assignee: L'Oreal
    Inventors: Herve Andrean, Didier Candau, Myrian Mellul, Christos Papantoniou, Bertrand Piot
  • Patent number: 5380362
    Abstract: The invention provides a working fluid for an electrophoretic image display device including a dispersion of finely divided diarylide yellow pigment particles each having a charge of a given polarity and acidic hydrogen surface sites in a suspension medium. Each of the pigment particles are transportable within the suspension medium, under the influence of an electric field, toward or away from at least one transparent plate. Adsorbed on the surface of each pigment particle is a thin layer of a charge control agent having a polyisobutylene chain and a basic anchoring group which reacts with the acidic surface sites to form charge pairs therewith. The polyisobutylene chains extend from the pigment surfaces on which the charge control agent is adsorbed, thereby providing a steric barrier between pigments and preventing agglomeration. The specific gravity of the suspension medium is matched with that of the pigment particles by combining effective amounts of secondary butyl benzene and tetrachloroethylene.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: January 10, 1995
    Assignee: Copytele, Inc.
    Inventor: Frederic E. Schubert
  • Patent number: 5366546
    Abstract: A process for the production of a pigment composition, comprising combining a) a dispersion of one or more non-polar components of a surface coating vehicle, or a non-polar additive for the pigment composition in an aqueous solution of a salt of a polar pigment additive, with b) an aqueous slurry of a pigment or a precursor thereof, before, during or after the synthesis of the pigment; and then isolating the pigment composition so obtained.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: November 22, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: James M. McCrae, Anne M. Keirs, John A. Nimmo
  • Patent number: 5358560
    Abstract: Solid form additive systems which are dispersible in aqueous media are disclosed, as are methods for preparing such additive systems. The additive systems are dry, free-flowing particulate materials that contain at least one additive component, at least one tackifying agent, and at least one surfactant.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: October 25, 1994
    Assignee: Eastman Chemical Company
    Inventors: Brenda J. Hitch, Mahendra K. Sharma, Leo P. Voetgli
  • Patent number: 5326395
    Abstract: A silica matting agent has a wax coating comprising a mixture of three waxes, i.e. hard microcrystalline, plasticising monocrystalline and synthetic polyethylene. The use of this ternary mixture gives the matting agent improved interaction with lacquers and improved sedimentation.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: July 5, 1994
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Derek Aldcroft, Ian P. McKeown, Bryan Rogers, Peter W. Stanier
  • Patent number: 5288494
    Abstract: A cosmetic composition comprising fine particles coated with Pyrrole Black.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: February 22, 1994
    Assignee: Kao Corporation
    Inventors: Toru Yoshihara, Jiro Kawase
  • Patent number: 5254406
    Abstract: A facepaint material for application to the skin of the human body to red the possibility of detection of the user by a thermal imaging device. The facepaint material comprises metallic particles embedded in a jelly-like vehicle having no strong radiation absorption bands in the 8-14 micrometer wavelength region.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: October 19, 1993
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Richard G. Quynn
  • Patent number: 5242689
    Abstract: A cosmetic composition comprising fine particles coated with Pyrrole Black.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: September 7, 1993
    Assignee: KAO Corporation
    Inventors: Toru Yoshihara, Jiro Kawase
  • Patent number: 5176751
    Abstract: A color concentrate pellet and a method for producing same. Pigment and carrier, both in powdered form, are placed in a high intensity bowl-type mixer. Small granules are produced. These granules are cold-pressed in a pellet mill and color concentrate pellets of a conventional size and shape are produced. These pellets contain up to 90% pigment by weight, and have a melting point of less than about 230.degree. F. The pellets are friable and are mixable and processable with commercially sized natural resin pellets without substantial settling out. The carrier in the pellet acts as a universal carrier. Pellets with additives in substitution for pigments are also disclosed.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: January 5, 1993
    Assignee: Thermocolor Corporation
    Inventor: Larry K. Findley
  • Patent number: 5074918
    Abstract: A process for conditioning organic pigments by milling or kneading said pigments in the presence of 0.05 to 25% by weight, based on the pigment to be milled, of at least one micronized wax.The process, in which the use of organic solvents may be dispensed with, yields in a single milling operation, pigments which are distinguished by excellent dispersibility and outstanding fastness properties.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: December 24, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Fridolin Babler
  • Patent number: 4985079
    Abstract: Disclosed is a medium set cationic bituminous emulsion comprising, relative to the emulsion:a. about 40 to 75% by weight asphalt;b. 0.25 to 5% by weight of a cationic emulsifier;c. 0.1 to 0.5% by weight of a nonionic water-soluble thickening agent;d. 0 to 8% of a low-boiling hydrocarbon; ande. water as a continuous phase of said emulsion to make up 100% by weight;wherein said medium set emulsion when combined with open-graded aggregate produces a mix which has a thick coating of emulsion on said aggregate surface and said mix is workable and results in minimum runoff.
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: January 15, 1991
    Assignee: Chevron Research Company
    Inventors: Peter E. Graf, Steven J. Agazzi, Eugene J. Vanderzanden
  • Patent number: 4929279
    Abstract: Dispersions of organic pigments are produced by adding a surfactant to an aqueous slurry of an organic pigment followed by subjecting the slurry to ultrasonic radiation. The surfactant utilized is one or more of the surfactants selected from the group consisting of:1. the acidic salt of N-alkyl-N,N',N'-trimethyl-1,3-propanediamine,2. the acidic salt of N-alkyl-N,N',N'-tris(2-hydroxypropyl)-1,3-propanediamine,3. N-alkyl-N,N,N',N',N'-pentamethyl-1,3-propanediamine dichloride,4. the acidic salt of N-(N-alkyl-3-aminopropane)-N'-(3-aminopropane)-1,3-propanediaminewherein the alkyl group contains from about 12 to about 22 carbon atoms, and5. a poly(ethyleneoxide) ether of an 18 carbon alcohol having 9 units of ethylene oxide thereon.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: May 29, 1990
    Assignee: BASF Corporation
    Inventor: Byron G. Hays