Patents Examined by Amelia B. Yarbrough
  • Plasticized coal tar pitch, composition containing same and its use
    Patent number: 4304606
    Abstract: This invention relates to a plasticized coal tar pitch comprising a mixture consisting essentially of about 50 to about 80 weight percent of a coal tar pitch having a softening point of about 40.degree. to about 75.degree. C. (Kramer-Sarnow); and about 50 to about 20 weight percent of a coal tar fraction rich in crystals and having a boiling point of about 350.degree. C. to about 450.degree. C. The mixture is suitable for blending with crude oil bitumen for producing a binder suitable for application to roadways.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: December 8, 1981
    Assignee: Rutgerswerke Aktiengesellschaft
    Inventors: Heinrich Louis, Helmut Kohler, Rudolf Oberkobusch, Gerd Collin, Volker Potschka
  • Corrosion inhibition treatments and method
    Patent number: 4303568
    Abstract: The invention deals with a method and composition(s) for use in inhibiting corrosion of metallic parts in contact with aqueous systems. It has been discovered that protective oxide films can be formed on the metallic surface if such is allowed to contact an aqueous system containing a sufficient amount for the purpose of a polymer composed primarily of acrylic moieties and hydroxylated lower alkyl acrylate moieties and a water-soluble orthophosphate. Optionally but desirably, polyphosphates, organo-phosphonates, and copper corrosion inhibitors may be included.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: December 1, 1981
    Assignee: Betz Laboratories, Inc.
    Inventors: Roger C. May, Gary E. Geiger
  • Ink jet printing formulations
    Patent number: 4303445
    Abstract: The invention features a process and composition for reducing or eliminating moisture in fluids suitable for use in ink jet systems without significantly changing the surface tension of these fluids. It has been discovered that mixing at least one borate ester derived from an aqueously miscible organic hydroxyl-containing compound, with a substantially non-aqueous printing medium will hygroscopically stabilize the printing medium, (maintain the printing medium substantially water-free) without significantly changing its surface tension.
    Type: Grant
    Filed: July 18, 1980
    Date of Patent: December 1, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventors: Richard G. Whitfield, Theodore M. Cooke
  • Paint compositions having wet adhesion characteristics
    Patent number: 4302375
    Abstract: This invention relates to the paint composition having a unique paint vehicle, the paint vehicle comprises a latex comprising copolymer resin particles having at least 25% vinyl acetate polymerized therein, and the polymerized resin particles containing from about 0.1-10% by weight of a diallylic urea compound therein for providing wet adhesion characteristics to the paint composition.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: November 24, 1981
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Dale D. Dixon, Frederick L. Herman
  • Pitch compositions
    Patent number: 4298396
    Abstract: The pitch compositions taught herein, upon carbonization, result in relatively oxidation-resistant carbon bodies. The compositions comprise pitch containing therein small quantities of fire retardant-like compositions having afterglow-inhibiting properties and which comprise halogenated organic compounds.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: November 3, 1981
    Assignee: Domtar Inc.
    Inventors: Abe Limonchik, Neil G. Richardson
  • Stabilized polyolefin compositions
    Patent number: 4298521
    Abstract: Polyolefin resins are rendered stable against degradation caused by exposure to heat and oxygen in the presence of copper by the incorporation of a novel polymeric stabilizer functioning dually as an antioxidant and a chelating agent.
    Type: Grant
    Filed: March 28, 1979
    Date of Patent: November 3, 1981
    Assignee: El Paso Polyolefins Company
    Inventors: John L. H. Allan, Arnold B. Finestone, John J. Roderick
  • Metal stripping composition and method
    Patent number: 4297257
    Abstract: A composition for stripping solder and tin from a copper substrate having an extended life is provided by the inclusion of a polyacrylamide in a peroxide-fluoride based stripping composition. The presence of the polyacrylamide minimizes the adverse effect of the stripping composition on the copper substrate of the material undergoing treatment.
    Type: Grant
    Filed: April 17, 1980
    Date of Patent: October 27, 1981
    Assignee: Dart Industries Inc.
    Inventors: Moenes L. Elias, Narendra K. Shah
  • Antifoaming resin compositions
    Patent number: 4297389
    Abstract: The foaming of resinous insulating materials under vacuum is substantially reduced by adding to the material a polydiene having primarily vinyl unsaturation.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: October 27, 1981
    Assignee: General Electric Company
    Inventor: Robert W. Smearing
  • Process for preparing polyarylates in the presence of a diphenyl ether compound and a catalyst
    Patent number: 4296232
    Abstract: Described herein is a process for preparing polyarylates which comprises reacting a diester derivative of a dihydric phenol with an aromatic dicarboxylic acid in the presence of from about 10 to about 60 weight percent of a diphenyl ether compound at a temperature of from about 260.degree. to about 350.degree. C. and in the presence of a magnesium catalyst.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: October 20, 1981
    Assignee: Union Carbide Corporation
    Inventors: Louis M. Maresca, Peter J. Gill, Mitchell H. Berger
  • Recording liquid composition
    Patent number: 4295889
    Abstract: A recording liquid composition for use in a recording system of the type in which the recording liquid composition is jetted from a small orifice in a form of droplet flying toward a recording material on which an image is to be printed, said recording liquid composition comrising, as its recording agent component, a particular compound as well defined in the specification by the general formula (A) or (B).
    Type: Grant
    Filed: November 28, 1979
    Date of Patent: October 20, 1981
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsuyoshi Eida, Masahiro Haruta, Yasuhiro Yano, Yoji Matsufuji, Tokuya Ohta
  • Solvent compositions
    Patent number: 4295888
    Abstract: The proportion of residual solvent in a solid chlorinated polymer prepared by chlorination in a chlorine-resistant solvent and subsequent treatment with steam or hot water is reduced by carrying out the said treatment in the presence of a polymer lubricant.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: October 20, 1981
    Assignee: Imperial Chemical Industries Limited
    Inventors: Gillian M. Greenwood, Alan Woodstock
  • Process for preparing polyarylates
    Patent number: 4294957
    Abstract: Described herein is a process for preparing polyarylates of improved color which comprises reacting a diester derivative of a dihydric phenol with an aromatic dicarboxylic acid in the presence of from about 10 to about 60 weight percent of at least one cycloaliphatic, substituted aromatic or heteroaromatic compound, which compounds contain at least one benzylic and/or tertiary hydrogen atom, at a temperature of from about 260.degree. to about 350.degree. C. Optionally, the process may be carried out in the presence of a magnesium, manganese, or zinc catalyst.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: October 13, 1981
    Assignee: Union Carbide Corporation
    Inventors: Mitchell H. Berger, Louis M. Maresca, Markus Matzner
  • Process for preparing polyarylates in the presence of a diphenyl ether
    Patent number: 4294956
    Abstract: Described herein is a process for preparing polyarylates which comprises reacting a diester derivative of a dihydric phenol with an aromatic dicarboxylic acid in the presence of from about 10 to about 60 weight percent of a diphenyl ether compound at a temperature of from about 260.degree. to about 350.degree. C.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: October 13, 1981
    Assignee: Union Carbide Corporation
    Inventors: Mitchell H. Berger, Peter J. Gill, Louis M. Maresca
  • Phthalocyanine formulations
    Patent number: 4294620
    Abstract: Phthalocyanine formulations which comprise a mixture of (a) phthalocyanine and (b) from 2 to 20% by weight, based on (a) of one or more urea derivatives of the formula K-(-NHCO-NH-R).sub.2 (I), where K is 1,5-naphthylene or 4,4'-diphenylenemethane, R is alkyl of 12 to 18 carbon atoms, alkenyl of 12 to 18 carbon atoms, 3-(alkoxy of 8 to 18 carbon atoms)-propyl, 2-(alkylamino of 8 to 18 carbon atoms)-ethyl or (CH.sub.2).sub.3 --O--(CH.sub.2 --CH.sub.2 O).sub.n --R.sup.1, R.sup.1 is alkyl of 2 to 8 carbon atoms or phenyl and n is 1, 2, 3 or 4, and which are obtained by milling (a) with (b) in the absence of a grinding medium.When used in printing inks, such as offset printing inks, the formulations give deeply colored prints in very pure hues, with very low graininess of the ink.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: October 13, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhard Sappok, Joachim Kranz
  • Production of an improved non-reinforced polyoxymethylene molding composition which forms reduced mold deposits upon molding
    Patent number: 4293469
    Abstract: The mold deposit problem commonly associated with non-reinforced polyoxymethylene molding compositions which creates a non-uniform surface on a molded article effectively is minimized. The polyoxymethylene polymer initially is heated (as described) while in admixture with about 0.25 to about 3 percent by weight based upon the weight of the polyoxymethylene polymer of a certain polycarbodiimide. The polycarbodiimide contains at least three carbodiimide units per polycarbodiimide molecule and is derived from one or more aromatic diisocyanates which are unsubstituted or are substituted with up to one methyl substituent on each aromatic ring.
    Type: Grant
    Filed: October 28, 1977
    Date of Patent: October 6, 1981
    Assignee: Celanese Corporation
    Inventor: Robert Edelman
  • Asphalt compositions modified with organo silane compounds
    Patent number: 4292371
    Abstract: A bitumen composition modified with an organo silane in which a bitumen such as asphalt is reacted with an organo silane containing ethylenic unsaturation or an organo silane containing at least one hydrogen atom bonded to the silicon atom whereby the organo silanes react with ethylenic unsaturation of the bitumen to chemically bond the organo silane to the bitumen. Also included are bitumens which have been chemically modified by reaction with steam, air, ammonia or aliphatic amines which have been reacted with a silane containing a functional group reactive with the bitumen. Bitumen compositions of the invention are preferably used in the treatment of glass fibers for use as reinforcement in asphalt systems.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: September 29, 1981
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Alfred Marzocchi, Michael G. Roberts, Charles E. Bolen
  • Process for the production of inks free of foreign salts
    Patent number: 4290812
    Abstract: A method for the production of an ink suitable for use in ink-jet printing, free from foreign salts, made from technical dyes. A highly water-soluble dye is dissolved in water and precipitated with a precipitant amine. The precipitate is separated from the solution and distilled with water and a water-soluble amine of low volatility to convert the dye back to a soluble form.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: September 22, 1981
    Assignee: Olympia Werke AG
    Inventor: Ehrenfried Loock
  • Heat sensitive coating
    Patent number: 4289535
    Abstract: A heat-sensitive coating composition for a thermo-responsive printing or recording record material for thermal printing devices comprising a color-forming amount of a finely divided solid chromogenous basic 3, 3-bisarylphthalane derivative, and a color-developing amount of a finely divided solid phenol derivative which at thermal printing temperature is at least partially fluidizable and capable of a color-forming reaction with the chromogenous 3,3-bisarylphthalane derivative distributed in a carrier composition comprising a substantially water soluble anionic polysaccharide gum and a stability enhancing amount of sucrose benzoate.
    Type: Grant
    Filed: March 14, 1980
    Date of Patent: September 15, 1981
    Assignee: Labelon Corporation
    Inventors: Barry L. Marginean, Warren A. Hookway, Jr.
  • Bis-carbalkoxy compounds and their preparation
    Patent number: 4288607
    Abstract: The invention relates to halogenous polyesters with the recurrent general formula ##STR1## in which at least part of the R's, e.g.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: September 8, 1981
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gerhard Bier, Dagmar Kottek, Egon N. Petersen, Hermann Richtzenhain, Norbert Vollkommer
  • Formulations for ink jet printing
    Patent number: 4286989
    Abstract: An ink for use in ink jet printing has as its coloring material a dye having the formula: ##STR1## where R is --OCH.sub.2 CO.sub.2.sup.-, --CH.sub.2 CO.sub.2.sup.-, --PO.sub.3.sup.= or --CH.sub.2 --PO.sub.3.sup.=.
    Type: Grant
    Filed: September 30, 1980
    Date of Patent: September 1, 1981
    Assignee: International Business Machines Corporation
    Inventors: Leo J. Kadehjian, Harbans S. Sachdev, Clinton D. Snyder