Patents by Inventor Michael A. Tobias

Michael A. Tobias has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4229555
    Abstract: Linear thermosettable polyester resin compositions are prepared from benzenedicarboxylic acid, an alkyl dicarboxylic acid, (e.g. 1,6-hexanedioic acid), and a short chain alkylene diol component (e.g. 2,2-dimethyl-1,3-propanediol), the resin having a number average molecular weight of about 1,500 to about 5,000 and combined acid and hydroxyl values of about 20 to about 60 mg of KOH per gram of polyester. When these polyesters are combined with an aminoplast and an acid catalyst they form coating compositions which, when applied to a substrate and cured, provide a coating having an outstanding combination of hardness, adhesion, extendability, flexibility and dry heat resistance.
    Type: Grant
    Filed: July 26, 1979
    Date of Patent: October 21, 1980
    Assignee: Mobil Oil Corporation
    Inventors: Michael A. Tobias, Conrad L. Lynch
  • Patent number: 4212776
    Abstract: Water reducible self crosslinking epoxy ester-acrylate polymers are prepared by partially esterifying the epoxy groups of a polyepoxide with an ethylenically unsaturated fatty acid or a saturated fatty acid and copolymerizing the ester product with monoethylenically unsaturated monomers including methacrylic acid and an alkoxymethylacrylamide or alkoxymethylmethacrylamide, to afford a self crosslinking acid copolymer. This copolymer is solubilized in water with a volatile base, e.g., ammonia, trimethylamine, or dimethylethanolamine. Formulations based on these polymers are useful as metal coatings.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: July 15, 1980
    Assignee: Mobil Oil Corporation
    Inventors: Carlos J. Martinez, Michael A. Tobias
  • Patent number: 4197353
    Abstract: Thermosettable polyester resin compositions, suitable for use in powder coating applications, derived from a dicarboxylic aromatic acid component (e.g., 1,4-benzenedicarboxylic acid), a trihydroxy alkyl component (e.g., 2-ethyl-2-(hydroxymethyl)-1,3-propanediol), a diol component (e.g., 2,2-dimethyl-1,3-propanediol) and a dihydroxy alkyl compound having 4 to 10 carbon atoms in the primary carbon chain between the hydroxyl moieties (e.g., 1,6-hexanediol). Polyesters of the present invention have a number average MW of from about 2,000 to about 6,000, a combined acid and hydroxyl number of about 35 to about 70 milligrams of KOH per gram of polyester, and a glass transition temperature of about 35.degree. C. to about 50.degree. C.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: April 8, 1980
    Assignee: Mobil Oil Corporation
    Inventors: Michael A. Tobias, George F. Salathe
  • Patent number: 4140819
    Abstract: Linear polyester resins, terminated with carboxyl groups, and suitable for inclusion in heat-curable fluid coating compositions, are advantageously modified by capping a minor fraction of the carboxyl groups with a hydrocarbyl glycidyl ether. The capped resins produce water-reducible formulations that exhibit a fast curing rate and excellent adhesion when formulated with hexamethoxymethylmelamine, for example. Such fluid coating compositions may be used as industrial coatings and coil-coatings.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: February 20, 1979
    Assignee: Mobil Oil Corporation
    Inventors: Michael A. Tobias, Conrad L. Lynch
  • Patent number: 4140729
    Abstract: There are provided linear polyesters of 1,6-hexanediol, short chain alkylene glycol, a phthalic acid, and optionally adipic acid. These polyesters are combined with an aminoplast and acid catalyst to form coating compositions which, when applied to a substrate and baked, provide a coating having an outstanding combination of flexibility, hardness, adhesion, extendability, dry heat resistance, weather resistance, and exterior color fastness.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: February 20, 1979
    Assignee: Mobil Oil Corporation
    Inventors: Michael A. Tobias, Conrad L. Lynch
  • Patent number: 4128515
    Abstract: There is provided an acidic ester of a polyepoxy resin, preferably diglycidyl ether of a bisphenol, esterified with an aliphatic dicarboxylic acid. The acid ester is dispersed in alcoholic solvents and water, with a volatile base and further blended with a cross-linking agent and non-ionic surfactant to afford an aqueous dispersion useful as a heat curable coating for beverage cans, coil stock, fabricated metal, and the like.
    Type: Grant
    Filed: September 14, 1977
    Date of Patent: December 5, 1978
    Assignee: Mobil Oil Corporation
    Inventors: Michael A. Tobias, Carlos J. Martinez
  • Patent number: 4051089
    Abstract: Water reducible alkyd resin composition comprising the reaction product of from about 10-15 wt. %, based on total weight of reactants, of a polyethylene glycol, from about 20-25 wt. % of a triglyceride, e.g., soya oil, based on total wt. % of reactants, from about 18 to 23 wt. %, based on total weight of reactants, of a polyol, e.g., glycerine, and from about 43-48 wt. %, based on total weight of reactants, of an aromatic dicarboxylic acid, e.g., isophthalic, and process of making same; said alkyd resin being highly useful for coating formulations.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: September 27, 1977
    Assignee: Mobil Oil Corporation
    Inventors: Michael A. Tobias, Carlos J. Martinez
  • Patent number: 4031237
    Abstract: N-substituted carbamates derived from 5,8-dihydro-5,8-methano-1-naphthol and substituted derivatives therefor are new compounds having insecticidal activity. These tricyclic phenols are prepared, for example, by Diels-Alder condensation of cyclopentadiene with 2-cyclohexen-1-one (or substituted derivative), followed by dehydrogenation.
    Type: Grant
    Filed: March 30, 1971
    Date of Patent: June 21, 1977
    Assignee: Mobil Oil Corporation
    Inventors: Stanley T. Gough, Michael A. Tobias, Roger P. Napier
  • Patent number: 4028294
    Abstract: Acrylic latices containing epoxy resins are prepared by emulsion polymerization in which an epoxy resin (polyepoxide) is incorporated into at least one of the monoethylenic monomers, including an epoxy-reactive monomer, and the monomers including the epoxy resin are emulsified into water containing surfactant to provide the oil phase of an oil-in-water emulsion. The monomers are then polymerized in the aqueous emulsion using a free radical polymerization catalyst and a reaction temperature which does not cause premature reaction between the epoxy groups and the reactive monomer. This provides thermosetting latex particles of fine particle size in the presence of less emulsifying agent than is normally needed.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: June 7, 1977
    Assignee: Mobil Oil Corporation
    Inventors: George L. Brown, Michael A. Tobias
  • Patent number: 3985695
    Abstract: A water reducible epoxy ester is prepared by reacting an epoxy resin, preferably a diglycidyl ether of bisphenol A, and a monofunctional epoxy, such as phenyl glycidyl ether, with a dibasic acid (e.g., azelaic acid) followed by reaction with trimellitic anhydride and neutralization of free carboxyl groups. This material is dispersed in an aqueous vehicle, applied to a metal substrate and baked.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: October 12, 1976
    Assignee: Mobil Oil Corporation
    Inventors: Michael A. Tobias, Richard A. Lamanna