Patents Assigned to BASF Wyandotte Corporation
  • Patent number: 4589922
    Abstract: In accordance with the instant invention, a high solids phthalocyanine pigment presscake prepared by methods well known to those skilled in the art is fluidized. The fluidization process comprises the steps of mixing the high solids pigment presscake with alkali metal hydroxide or ammonium hydroxide and rosin. In a preffered embodiment, the rosin, is dissolved in the hydroxide or aqueous solution thereof prior to mixing with the presscake.
    Type: Grant
    Filed: November 25, 1983
    Date of Patent: May 20, 1986
    Assignee: BASF Wyandotte Corporation
    Inventor: Thomas E. Donegan
  • Patent number: 4588511
    Abstract: The invention relates to functional fluid concentrates and functional fluids which can be prepared by mixing the concentrates with water. The functional fluid concentrate comprises certain basic zinc salts as cloud point raising additives; a polyether nonionic surfactant; and an associative polyether thickener.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: May 13, 1986
    Assignee: BASF Wyandotte Corporation
    Inventors: Mark A. Frentrup, Stanley T. Hirozawa, James E. Carson, Daniel E. Coker
  • Patent number: 4575559
    Abstract: This invention relates to a process for preparing certain sulfophenethylsiloxanes by reacting nearly equimolar amounts of chlorosulfonic acid with certain phenethyltrichlorosilanes in the presence or absence of a solvent according to the specified reaction conditions.
    Type: Grant
    Filed: February 12, 1985
    Date of Patent: March 11, 1986
    Assignee: BASF Wyandotte Corporation
    Inventors: Edward J. Panek, Thomas M. Schmitt, Pauls Davis, Jen-Sheng Ku
  • Patent number: 4568705
    Abstract: A low viscosity, stable graft polymer dispersion is prepared by polymerizing in the presence of a free radical initiator, from about 25 to about 75 weight percent based on the total weight of the dispersion, an ethylenically unsaturated monomer or mixture of monomers, in a polyol mixture comprising (1) from about 25 to about 99 weight percent of a polyol containing from 2 to 8 hydroxyl groups and having an equivalent weight from 30 to about 200, (2) from about 1 to about 75 weight percent of a macromer containing induced unsaturation, said macromer comprising the reaction product of a polyether polyol having an equivalent weight from 100 to 10,000 with a compound having both ethylenic unsaturation and a group selected from the group consisting of a hydroxyl, carboxyl, anhydride, isocyanate and epoxy or mixtures thereof. These graft polymer dispersions are useful for preparing polyurethane products.
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: February 4, 1986
    Assignee: BASF Wyandotte Corporation
    Inventors: Oscar M. Grace, Steven E. Wujcik, Duane A. Heyman
  • Patent number: 4568480
    Abstract: A microemulsion of water and an alkoxylated phenol derivative which may also contain an oil and an additional surfactant.
    Type: Grant
    Filed: November 17, 1983
    Date of Patent: February 4, 1986
    Assignee: BASF Wyandotte Corporation
    Inventors: Basil Thir, Edward M. Dexheimer
  • Patent number: 4562290
    Abstract: The subject invention relates to adducts of vicinal toluenediamine prepared by:(a) reacting from one to three moles of ethylene oxide with vicinal toluenediamine at a temperature of 125.degree. C., and(b) reacting the product of (a) with four to eight moles of propylene oxide at a temperature of at least 140.degree. C. in the present of at least 1.0 part of an alkali metal hydroxide catalyst.The adducts generally have a hydroxyl number of 300 to 500 and are particularly useful for the preparation of rigid polyurethane foams.
    Type: Grant
    Filed: December 1, 1981
    Date of Patent: December 31, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Alexander Korczak, William W. Levis, Jr.
  • Patent number: 4556680
    Abstract: Polystyrene beads having antistatic properties are prepared by adding the antistatic compounds to the beads during the pre-expansion step. The beads may then be employed to prepared molded products without any further treatment with antistatic agents.
    Type: Grant
    Filed: August 30, 1983
    Date of Patent: December 3, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Mark C. Braemer
  • Patent number: 4555531
    Abstract: The invention relates to rigid polyurethane foams prepared by reacting a polyether polyol other than one derived from an alkanolamine, an alkylene oxide adduct of an alkanolamine, catalyst and blowing agent, and an organic polyisocyanate. The compositions are useful as insulation.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: November 26, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Donald L. Christman
  • Patent number: 4555549
    Abstract: The instant invention relates to a rubber lubricant composition characterized by complete wetting of the elastomer surface both before and after vulcanization which gives a matte finish on cooling down that remains soft and does not flake off. This comprises (1) polyoxypropylene-polyoxyethylene block copolymer having a molecular weight of the polyoxypropylene hydrophobe of about 2500 to 4000 and containing 20 to 80 percent oxyethylene groups and (2) an oxyethylated oxypropylated higher alcohol.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: November 26, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Ronald L. Camp, Edward M. Dexheimer, Michael J. Anchor
  • Patent number: 4555530
    Abstract: Modified benzyl ether-containing resole polyols derived from a phenolic component, a non-aqueous aldehyde, and a halogen-containing aliphatic hydroxyl component are prepared using a metal derivative as a catalyst. These polyols react with organic polyisocyanates to yield closed cell, low friability, low combustibility, rigid polyurethane foams without the need for post curing at elevated temperature. They are also useful in the preparation of modified rigid polyisocyanurate foams.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: November 26, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: John T. Patton, Jr., John P. Rupert
  • Patent number: 4555527
    Abstract: Graft polymer dispersions are prepared by polymerizing aqueous solutions of acrylamide in unsaturation-containing polyols. These dispersions are employed in preparing polyurethane products.
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: November 26, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Duane A. Heyman
  • Patent number: 4554079
    Abstract: The invention comprises a device and method for collecting floating immiscible liquids from flowing channels such as collection of oil from the surface of a water stream, such as an effluent stream from a factory by moving an inlet opening of the device in and out of the liquid. A preferred device employs a changing center of gravity to rotate the inlet opening and accomplish collection. With such a device a relatively large inlet opening may be employed whereby the lower edge of the opening may be adjusted just below the liquid surface in order to have only the desired portion of the surface flow into the device. The lower edge of the opening then moves up above the surface while the liquid which flowed into the device is being pumped out, thereby blocking the entrance of further liquid into the device and preventing further movement of the upper surface of the stream during pumping.
    Type: Grant
    Filed: November 3, 1983
    Date of Patent: November 19, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Michael G. Wingard, John F. D. Peterson
  • Patent number: 4550153
    Abstract: A RIM polyurethane elastomer prepared by reacting an organic polyisocyanate, a polyoxyalkylene polyether polyol, and a chain extender in the presence of an effective amount of aniline. Improvements in tensile and tear strength are realized.
    Type: Grant
    Filed: October 26, 1984
    Date of Patent: October 29, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Thomas G. Carver
  • Patent number: 4550194
    Abstract: Polyether-ester polyols are prepared by reacting a polyether polyol, maleic anhydride and an alkylene oxide in the presence of a catalyst selected from the group consisting of calcium naphthenate and cobalt naphthenate. These polyols may be used in preparing polyurethane products.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: October 29, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Curtis J. Reichel, Robert J. Hartman
  • Patent number: 4548787
    Abstract: Compositions for inhibiting mineral scale and the corrosion of metals particularly the cavitation corrosion of aluminum in the presence of aqueous liquids are disclosed. The combination of a water-soluble phosphate with at least one of a water-soluble molybdate, tungstate, or selenate is disclosed as providing a synergistic protective effect against the cavitation corrosion of aluminum in aqueous liquids.
    Type: Grant
    Filed: February 9, 1983
    Date of Patent: October 22, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Joe C. Wilson, Stanley T. Hirozawa, John J. Conville
  • Patent number: 4547303
    Abstract: The invention relates to a water-based functional fluid thickened by an associative polyether thickener whose thickening ability is enhanced by the addition of certain quaternary ammonium salts.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: October 15, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Charles F. Deck, James E. Carson
  • Patent number: 4544495
    Abstract: A shampoo composition containing a polyoxybutylene-polyoxyethylene nonionic surfactant has unexpectedly high viscosity and high foam.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: October 1, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Irving R. Schmolka
  • Patent number: 4544763
    Abstract: Urethane-modified polyisocyanates prepared from toluene diisocyanate are desirable for economic, processing, and product property reasons. Such products should be low in viscosity to allow spray application and low in free TDI content to avoid undue physiological hazard.By use of prescribed reaction condition and reactant ratios, a suitable product can be prepared from hydroxyl-terminated polyoxyalkylene compounds, toluene diisocyanate, and diphenylmethane diisocyanate.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: October 1, 1985
    Assignee: Basf Wyandotte Corporation
    Inventor: Thirumurti Narayan
  • Patent number: 4536557
    Abstract: This invention relates to polymer dispersions prepared by the in situ polymerization of an ethylenically unsaturated monomer or mixture of monomers in a chain extender in the presence of a free radical polymerization initiator and a polyamide stabilizer.The invention also relates to mixtures of the polymer dispersions with compounds having two or more active hydrogen atoms as determined by the Zerewittinoff method. These mixtures are used to prepare polyurethane products.
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: August 20, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Duane A. Heyman
  • Patent number: 4534958
    Abstract: A pressurized composition in an aerosol container and adapted to form a spray upon release of pressure therefrom which composition is a liquid inside the container and forms a gel on contact with living tissue comprising water, propellant, volatile solvent and a polyoxyethylene-polyoxypropylene copolymer. The preferred composition may also advantageously include a skin treating agent, and conventional skin treatment additives.
    Type: Grant
    Filed: July 13, 1983
    Date of Patent: August 13, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Dennis V. Adams, Norbert J. Cremers, Raymond L. Henry