Patents Assigned to BASF Wyandotte Corporation
  • Patent number: 4535178
    Abstract: Polyether-ester polyols are prepared by reacting a polyether polyol, tetrahydrophthalic 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: August 13, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Curtis J. Reichel
  • Patent number: 4534959
    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 and a polyoxyethylene-polyoxypropylene copolymer. The preferred composition may advantageously include a skin treating agent, and conventional adjuvants.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: August 13, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Irving R. Schmolka
  • Patent number: 4533674
    Abstract: The subject invention relates to a vitamin C powder prepared by (a) spray drying an aqueous slurry of ascorbic acid and binder in the presence of an absorbent in amounts such that the resulting powder will contain at least 90 percent by weight of ascorbic acid, no more than 9 percent by weight of binder, from 0.2 to 2 percent by weight of absorbent; and blending from 0.2 to 5 percent by weight of a lubricant into the powder prepared by step (a). Preferably microcrystalline cellulose and mixtures of microcrystalline cellulose and hydroxypropylmethycellulose are used as the binder.The resulting sugar and starch free vitamin C powder prepared by this process will be free flowing, have an ascorbic acid content of at least 90 percent by weight, be color stable under use conditions, will contain a lubricant, and is directly compressible into tablets which have acceptable hardness, friability, color stability, and disintegration times.
    Type: Grant
    Filed: October 24, 1983
    Date of Patent: August 6, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Douglass N. Schmidt, Jeffrey L. Finnan, Rudolph E. Lisa
  • Patent number: 4532133
    Abstract: Vitamin A palmitate compositions stable against crystallization at low temperatures are prepared by blending therewith a monoterpene such as dl-limonene. Vitamin A active concentrates prepared utilizing low temperature stabilized vitamin A palmitate are prepared by blending therewith an acceptable feed or food grade emulsifier.
    Type: Grant
    Filed: May 24, 1983
    Date of Patent: July 30, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Douglass N. Schmidt
  • Patent number: 4529746
    Abstract: This invention relates to alkylated vicinal toluenediamines and their use as chain extenders in the preparation of polyurethane elastomers.
    Type: Grant
    Filed: January 11, 1984
    Date of Patent: July 16, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Robert A. Markovs, John W. Lightsey, Gerhard G. Ramlow, Peter T. Kan
  • Patent number: 4528075
    Abstract: In accordance with the instant invention, there is provided a method for solubilizing benzylidene acetone in a zinc plating bath which comprises adding to said bath, a small amount of a Bisphenol initiated polyoxyalkylene compound.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: July 9, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Michael J. Anchor, Ronald L. Camp
  • Patent number: 4525489
    Abstract: Reaction products of certain tertiary phosphines, alkylene oxides, and carboxylic acids have been found to be effective catalysts for the preparation of rigid and flexible foams characterized by isocyanurate and/or urethane linkages.
    Type: Grant
    Filed: August 28, 1981
    Date of Patent: June 25, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Thirumurti Narayan
  • Patent number: 4525217
    Abstract: The subject invention relates to a process for preparing ferriferrocyanide pigments. The process comprises(a) forming an aqueous reaction mixture comprising(i) a ferrous salt,(ii) a compound selected from the group consisting of sulfuric acid, hydrochloric acid, an inorganic potassium salt, and mixtures thereof, and(iii) an alkali metal ferrocyanide such that the molar ratio of (i) to (ii) to (iii) is about 1:1 to 0.9:1.5 to 1:1;(b) oxidizing the acidic solution by aeration;(c) heating the aerated solution to from 10.degree. C. to 90.degree. C.; and(d) recovering the pigment.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: June 25, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Arvind S. Patil, John H. Bantjes, Louis J. Pepoy, Reinhard J. Sappok
  • Patent number: 4522976
    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 70 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 17, 1984
    Date of Patent: June 11, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Oscar M. Grace, Steven E. Wujcik, Duane A. Heyman
  • Patent number: 4519950
    Abstract: Acetal-coupled non-ionic surfactants are easily degraded into relatively environmentally inoccuous fragments having little or no surface activity. The fragments are sufficiently low in molecular weight to be oxidized when exposed to water and atmospheric oxygen. Surface activity can also be destroyed by lowering the alkalinity of the medium in which the non-ionic surfactant is utilized to below pH 7.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: May 28, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: William K. Langdon
  • Patent number: 4517383
    Abstract: The subject invention relates to alkylene oxide adducts of aniline prepared by reacting an alkylene oxide with an aniline in the presence of preferably at least 0.1 part of alkali metal hydroxide per 100 parts by weight of aniline.The resulting compositions may be used in the preparation of polyurethane products, such as rigid polyurethane foams, and may also be used as nonionic surfactants.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: May 14, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Alexander Korczak, William W. Levis, Jr.
  • Patent number: 4511563
    Abstract: The subject invention relates to analgesic gels which comprise1. from 5 to 15 parts of an analgesic compound;2. from 10 to 40 parts of a nonionic surfactant which forms a gel in water alone at about 15 to 30 percent by weight based upon the weight of the water plus the weight of the nonionic surfactant;3. from 5 to 40 parts of glycerin;4. from 40 to 75 parts of water; and5. optional ingredients (q.v.)said parts based upon 100 parts of the composition and provided that the weight ratio of nonionic surfactant to water is from 5:1 to 3:1.The subject gels are clear, water soluble and are not tacky when applied to the skin.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: April 16, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Irving R. Schmolka
  • Patent number: 4510067
    Abstract: The instant invention relates to compositions containing (a) a high-foaming nonionic surfactant and (b) a foam reducing amount of a polyoxyalkylene compound of the formula:Y[(A).sub.m --(B).sub.n H].sub.2wherein Y is the residue formed by the removal of two atoms of active hydrogen from an initiator having a total of not more than 20 carbon atoms, preferably butanediol; A is a hydrophobic, heteric mixture of an oxytetramethylene radical, derived from tetramethylene oxide and a vicinal alkylene oxide radical derived from propylene oxide, B is primarily C.sub.2 H.sub.4 O; n is an integer such that the total weight of said B is about 5 to about 40 percent by weight of the total oxyalkylene residue weight of the compound and the total molecular weight of the hydrophobe, 2m is about 1000 to 3000.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: April 9, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Ahmet C. Ozmeral
  • Patent number: 4510306
    Abstract: The subject invention relates to the removal of residual higher alcohols which are present from the preparation of crude higher-alkyl glycosides. The residual higher alcohols are removed via vacuum distillation with a hydroxyl-containing solvent. The purified higher-alkyl glycosides are biodegradable nonionic surfactants which are soluble and stable in highly alkaline cleaning formulations used for bottle washing, metal cleaning, textile treatment and other applications.
    Type: Grant
    Filed: September 13, 1983
    Date of Patent: April 9, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: William K. Langdon
  • Patent number: 4504418
    Abstract: Biodegradable non-ionic surface-active agents containing carbonate groups or residues of carboxylic esters can be prepared by reacting hydrophilic polyoxyalkylene glycols derived from the same or different alkylene oxide glycols with monofunctional alcohols. The compositions of the invention contain both hydrophilic and hydrophobic groups in the molecule making them suitable for use as surface-active agents. The residues of the monofunctional alcohols provide hydrophobic groups in the molecule of the surface-active agent.
    Type: Grant
    Filed: January 9, 1981
    Date of Patent: March 12, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: William K. Langdon
  • Patent number: 4504499
    Abstract: Stabilization of carotenoid-containing edible oils at elevated temperatures is accomplished by the use of stabilizing amounts of lauryl thiodipropionate, dilauryl thiodipropionate, a tocopherol and mixtures thereof. The stabilized colored edible oils retain a large percentage of the coloration subsequent to heating at deep-fat frying temperatures as compared with the coloration of said edible oil prior to heating.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: March 12, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Jeffrey L. Finnan
  • Patent number: 4503193
    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: April 16, 1984
    Date of Patent: March 5, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Duane A. Heyman
  • Patent number: 4503207
    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: July 5, 1983
    Date of Patent: March 5, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Duane A. Heyman
  • Patent number: 4496632
    Abstract: Relates to lubricating thermoplastic synthetic fibers comprising the application to said fibers of a modified polyoxyalkylene polyol which polyol is modified by capping all of the hydroxyl groups with benzyl, aryl, substituted benzyl or aryl groups or alkyl groups having 1 to 4 carbon atoms.
    Type: Grant
    Filed: December 16, 1982
    Date of Patent: January 29, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Ronald L. Camp, Edward M. Dexheimer, Basil Thir
  • Patent number: 4495169
    Abstract: A pressurized shaving cream 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, volatile solvent, propellant and a polyoxyethylene-polyoxypropylene copolymer. The preferred composition also includes a volatile solvent and may advantageously include a treatment agent and conventional additives.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: January 22, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Irving R. Schmolka