Patents Represented by Attorney Joseph D. Michaels

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  • Process for the preparation of cellular and non-cellular polyurethanes
    Patent number: 4481309
    Abstract: The invention relates to a process for the preparation of cellular or non-cellular polyurethanes through the reaction of organic polyisocyanates with a polyether-polyester polyol component containing di- to tetrafunctional polyether-polyester polyols having hydroxyl numbers of from 10 to 200, which are themselves prepared by esterifying conventional di- to tetrafunctional polyether polyols with carboxylic acid anhydrides, preferably aromatic carboxylic acid anhydrides, in the presence of selected catalysts to form carboxylic acid half esters, and oxyalkylating the resulting carboxylic acid half esters with alkylene oxides in the presence of N-methylimidazole, triethylene diamine, triphenylphosphine or mixtures thereof with thiodialkylene glycol as catalysts.
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: November 6, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Straehle, Ingolf Buethe, Matthias Marx
  • Process for the purifying of polytetramethylene ether glycol or corresponding diester
    Patent number: 4480124
    Abstract: The subject invention relates to a process for purifying polytetramethylene ether glycol or the corresponding diester prepared by cationic polymerization of tetrahydrofuran comprising treating said glycol or diester with hydrogen in the presence of a hydrogen catalyst. The resulting products have a low color number.
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: October 30, 1984
    Assignee: BASF Aktiengesellschaft
    Inventor: Herbert Mueller
  • Diphenylmethane diisocyanate-based liquid polyisocyanate mixtures containing urethane groups, process for their preparation and their use for the preparation of flexible polyurethane foams
    Patent number: 4478960
    Abstract: Diphenylmethane diisocyanate-based liquid polyisocyanate mixtures containing urethane groups and having an isocyanate content of from 12 to 30 percent by weight are obtained by reaction of a polyoxypropylene polyoxyethylene polyol containing 5 to 30 percent by weight of oxyethylene with diphenylmethane diisocyanate-based isocyanates. These polyisocyanate mixtures are storage stable at low temperature and yield flexible polyurethane foams having improved mechanical properties.
    Type: Grant
    Filed: October 21, 1983
    Date of Patent: October 23, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Ingolf Buethe, Matthias Marx, Gisbert Schleier, Reinhard Peters
  • Ethoxylates of diacetylene alcohols and the use of these compounds as surfactants
    Patent number: 4479016
    Abstract: The invention relates to ethoxylates of diacetylene dialcohols as well as the use of these compounds as surfactants.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: October 23, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Erhard Klahr, Walter Rebafka, Axel Nissen, Wolfgang Trieselt, Albert Hettche
  • Concentrated aqueous solutions of mixtures of organic complexing agents and dispersing agents based on polymeric aliphatic carboxylic acids
    Patent number: 4474916
    Abstract: Aqueous solutions comprising 25 to 60 percent by weight of mixtures of(a) polymers of acrylic acid and/or copolymers of acrylic acid with maleic acid and(b) aminopolycarboxylic acids, aminopolyphosphonic acids and/or hydroxyalkanepolyphosphonic acids,such solutions having a pH value of about 3 to about 7 with the acid groups being present 20 to 80 percent in the form of the potassium salts and the remaining acid groups being present in form of the free acid, the amine salt, or mixtures thereof.
    Type: Grant
    Filed: July 21, 1983
    Date of Patent: October 2, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Streit, Wolfram Bergold, Dieter Bassing
  • Phenolic polyols and rigid cellular compositions derived therefrom
    Patent number: 4473669
    Abstract: Modified benzyl ether-containing resole polyols derived from phenol, paraformaldehyde and an aliphatic hydroxyl compound 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: February 17, 1984
    Date of Patent: September 25, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: John P. Rupert, John T. Patton, Jr.
  • Polyurethane prepared from a polyoxyalkylene containing an oxidation inhibiting amount of a benzoic acid salt
    Patent number: 4469820
    Abstract: The oxidation promoting harmful effects of the presence of an alkaline catalyst in a polyoxyalkylene can be eliminated and the product made more resistant to oxidation especially at elevated temperatures by the incorporation therein of soluble salts of certain benzoic acid derivatives. The soluble salts can be formed by reaction with the alkali or alkaline earth metal ion derived from the alkaline catalyst utilized in the polymerization of the polyoxyalkylene.
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: September 4, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: Edward M. Dexheimer, Michael J. Anchor, Basil Thir, Stephen E. Eisenstein
  • Moisture-curing, storage stable, single-component polyurethane systems
    Patent number: 4469831
    Abstract: The object of this invention is a moisture-curing, storage stable, single-component polyurethane system comprising:A. a polyurethane prepolymer with a free isocyanate content of 1 to 5 percent by weight;B. a dialdimine having the formulaR[--N.dbd.CH--C(CH.sub.3).sub.2 --CH.sub.2 --O--CO--CH--(CH.sub.3).sub.2 ].sub.2in whichR is a divalent aliphatic radical with 2 to 10 carbon atoms, aliphatic radical having 4 to 10 carbon atoms and containing ether oxygen and/or lower alkylamino nitrogen atoms, cycloaliphatic radical with 6 to 15 carbon atoms oraromatic radical with 6 to 21 carbon atoms;andC. an acid catalyst selected from the group consisting of aliphatic carboxylic acids, aromatic carboxylic acids, toluenesulfonic acid, and mixtures thereof.The polyurethane systems are used as coating, sealing, casting, spackling and bonding materials.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: September 4, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Uwe Bueltjer, Heinrich Horacek, Wolfgang Druschke, Gernot Franzmann, Erhard Klahr, Hans-Juergen Foerster
  • Alkylene oxide adducts of vicinal toluenediamine and co-initiators, useful for rigid polyurethane foams
    Patent number: 4469822
    Abstract: The subject invention relates to polyol compositions which are alkylene oxide adducts of a mixture of initiators comprising vicinal toluenediamine and an initiator selected from the group consisting of glycerin, pentaerythritol, sucrose, sorbitol, trimethylolpropane, and mixtures thereof. Low molecular weight diols may also be used as a co-initiator in combination with the glycerin, pentaerythritol, sucrose, sorbitol, trimethylolpropane, and mixtures thereof.The subject polyol compositions are particularly useful in the preparation of rigid polyurethane foams.
    Type: Grant
    Filed: July 14, 1983
    Date of Patent: September 4, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: Theodore O. Stolz, Richard A. Moore, James P. Lutz
  • Polyurethanes prepared from polyoxyalkylenes containing alkaline catalyst residues chelated with benzoic acid derivatives
    Patent number: 4468478
    Abstract: The oxidation promoting harmful effects of the presence of an alkaline catalyst in a polyoxyalkylene can be eliminated and the product made more resistant to oxidation especially at elevated temperatures by the incorporation therein of soluble salts of certain benzoic acid derivatives. The soluble salts can be formed by reaction with the alkali or alkaline earth metal ion derived from the alkaline catalyst utilized in the polymerization of the polyoxyalkylene.
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: August 28, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: Edward M. Dexheimer, Michael J. Anchor, Basil Thir, Stephen E. Eisenstein
  • High pH coolant containing carbonate ion
    Patent number: 4452715
    Abstract: pH in the range of 9 to 10.5 can be maintained at elevated temperatures over an extended period by the decarboxylation of bicarbonate or carbonate ion present in a coolant composition free of phosphate and borate compounds.
    Type: Grant
    Filed: October 25, 1982
    Date of Patent: June 5, 1984
    Assignee: BASF Wyandotte Corporation
    Inventor: Stanley T. Hirozawa
  • Process for the preparation of polyester polyols and/or polyester-polyether polyols
    Patent number: 4452997
    Abstract: Polyester polyols and/or polyester-polyether polyols are prepared by reacting polyols preferably di- to hexafunctional polyether polyols with hydroxyl numbers of 30 to 200 with at least one carboxylic anhydride, preferably glutaric anhydride, resulting in a carboxylic acid half ester which is subsequently oxyalkylated with at least one alkylene oxide, preferably ethylene oxide in the presence of at least 1 thiodialkylene glycol, preferably thiodiethylene and/or thiodipropylene glycol.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: June 5, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Marx, Wolfgang Straehle
  • Compositions and process for inhibiting corrosion of aluminum
    Patent number: 4452758
    Abstract: Antifreeze compositions and a process for inhibiting the corrosion of aluminum in contact with aqueous liquids are disclosed. The antifreeze compositions comprise a combination of an alkanolamine, an alkali metal phosphate, a heterocyclic nitrogen compound, as defined, and a conventional corrosion inhibitor in effective corrosion inhibiting amounts. The aqueous liquid can be an alcohol such as ethylene glycol.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: June 5, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: Joe C. Wilson, Stanley T. Hirozawa, Stephen E. Eisenstein, Jerrold F. Maxwell
  • Water-soluble partially saponified copolymers based on vinyl acetate and methyl acrylate and their use for delaying the polymerization of styrene
    Patent number: 4452949
    Abstract: By emulsion polymerization of vinyl acetate, methylacrylate, acrylic acid, monoolefinically unsaturated sulfoalkyl esters or amides and vinyl sulfonate and partial saponification of the resultant copolymer emulsion, an aqueous solution of a copolymer is obtained which greatly delays the polymerization of styrene in aqueous media.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: June 5, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Ernst Penning, Bernd Stanger, Alfred Mueller
  • Process for the preparation of polyurethane-polyisocyanurate foams
    Patent number: 4452921
    Abstract: The invention describes a process for harmonizing the reaction rates for the formation of urethane and isocyanurate groups during the preparation of polyurethane-polyisocyanurate foams by reacting organic polyisocyanates with polyols in the presence of blowing agents and salts of amines having the formula ##STR1## as catalysts, wherein R stands for an hydrogen atom or a straight chained or branched alkyl radical with 1 to 19 carbon atoms, and n and m are equal or different whole numbers from 2 to 10.
    Type: Grant
    Filed: December 16, 1982
    Date of Patent: June 5, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinrich Horacek, Robert Gehm, Wolfram Frank, Matthias Marx
  • Process for stabilizing rock and coal formations by bonding these formations to themselves or other geological formations
    Patent number: 4452551
    Abstract: The invention relates to a process for stabilizing rock and coal formations by bonding them to each other or to other geological formations. The bonding material is a reactive organic polyisocyanate-polyol mixture which may contain a catalyst.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: June 5, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Diether Arndt, Dietmar Hobein
  • Grinding or dispersing agents for pigments
    Patent number: 4450013
    Abstract: The subject invention relates to compositions which are used as auxiliaries for pigment grinding and as dispersing agents for pigments. The compositions are essentially copolymers based upon acrylic acid, methacrylic acid, and sulfonic acid group containing monomers such as 2-acrylamido-2-methylpropanesulfonic acid.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: May 22, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Hirsch, Gregor Ley
  • Corrosion inhibited alcohol compositions
    Patent number: 4450088
    Abstract: Antifreeze or anticorrosive additive compositions and a process for inhibiting the corrosion of aluminum in contact with aqueous liquids are disclosed. The antifreeze compositions comprise a combination of an amino acid, an alkali metal phosphate, a heterocyclic nitrogen compound, as defined, and a conventional corrosion inhibitor in effective corrosion inhibiting amounts. The aqueous liquid can be an alcohol such as ethylene glycol.
    Type: Grant
    Filed: May 19, 1983
    Date of Patent: May 22, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: Joe C. Wilson, Stanley T. Hirozawa
  • Halogenated phenolic polyols and rigid cellular compositions made therefrom
    Patent number: 4448952
    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: January 17, 1983
    Date of Patent: May 15, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: John T. Patton, Jr., John P. Rupert
  • Phenolic polyols and rigid cellular compositions derived therefrom
    Patent number: 4448951
    Abstract: Modified benzyl ether-containing resole polyols derived from phenol, paraformaldehyde and an aliphatic hydroxyl compound 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: January 17, 1983
    Date of Patent: May 15, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: John P. Rupert, John T. Patton, Jr.