Patents by Inventor Otto S. Zamek

Otto S. Zamek 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).

  • Ether modified polyester resins
    Patent number: 4611021
    Abstract: There is provided a curable ether modified polyester resin composition comprising the reaction product of (a) at least one dicarboxylic acid, (b) at least one aliphatic polyol, and (c) at least one aromatic bis (ether dianhydride) or the corresponding tetracarboxylic acid.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: September 9, 1986
    Assignee: General Electric Company
    Inventor: Otto S. Zamek
  • Ether modified polyesterimide resins
    Patent number: 4609702
    Abstract: Ether modified polyesterimide resins are prepared by reacting under esterimide forming conditions substantially free of inert solvents a mixture consisting essentially of:(i) a diamine,(ii) a carboxylic acid anhydride containing at least one additional carboxylic group,(iii) an aromatic bis (ether anhydride) or the corresponding acid thereof,(iv) terephthalic acid and/or isophthalic acid,(v) a polyhydric alcohol having at least two hydroxyl groups, and(vi) optionally, a monoether of diethylene glycol or a monoether of triethylene glycol.
    Type: Grant
    Filed: October 22, 1985
    Date of Patent: September 2, 1986
    Assignee: General Electric Company
    Inventor: Otto S. Zamek
  • Methods for making blocked isocyanurates
    Patent number: 4607103
    Abstract: There is provided a method for making blocked isocyanate trimers comprising (A) blocking at least one organic diisocyanate with at least one blocking compound, such as a monohydroxy compound and thereafter (B) heating the reaction product of step (A) in the presence of a catalyst having the general formula ##STR1## where each R is independently selected from hydrogen and lower alkyl radicals and R.sup.1 is an alkylene radical having up to about six carbon atoms; for an amount of time effective for forming blocked isocyanate trimers.
    Type: Grant
    Filed: August 13, 1985
    Date of Patent: August 19, 1986
    Assignee: General Electric Company, Silicone Products Division
    Inventors: Otto S. Zamek, Richard J. Stein
  • Hot-melt polyesterimide-polyisocyanate electrical coating compositions
    Patent number: 4389457
    Abstract: Hot-melt electrical coating compositions comprise high solids content polyesterimides prepared to an acid number of less than 6-7 in the presence of a monoether or monoester of a glycol or polyglycol and reacted hot with a blocked polyisocyanate. Such virtually solventless compositions provide insulation coatings on electrical conductors which have superior flexibility, especially after aging.
    Type: Grant
    Filed: July 14, 1981
    Date of Patent: June 21, 1983
    Assignee: General Electric Company
    Inventors: Denis R. Pauze, Otto S. Zamek
  • Polyetheramideimide resins and electrical conductors insulated therewith
    Patent number: 4354965
    Abstract: Novel high molecular weight resins, useful for electrically insulating conductors, are prepared by polycondensing a mixture of anhydrides, and a diisocyanate and/or a diamine in an inert organic solvent, preferably in the presence of a catalytic amount of 2-methylimidazole.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: October 19, 1982
    Assignee: General Electric Company
    Inventors: Yue-Guey L. Lee, Otto S. Zamek
  • Use of manganese chelate to oxidatively couple phenolic compound in a self-precipitating system
    Patent number: 4335234
    Abstract: Improved reaction rates and yields are provided if phenolic compounds are polymerized with basic manganese chelate catalysts in a self-precipitating system comprising an aromatic hydrocarbon and a water-immiscible alcohol.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: June 15, 1982
    Assignee: General Electric Company
    Inventors: Walter K. Olander, Otto S. Zamek
  • Electrical conductors coated with polyester imide wire enamels
    Patent number: 4329397
    Abstract: Superior wire enamels comprise polyester imides prepared in the presence of a monophenyl ether of a glycol having a free secondary hydroxyl group and dissolved in a solvent comprising predominantly a polar oxygenated compound selected from a monoether or monoester of an alkylene, or polyalkylene, glycol. Electrical conductors coated with such enamels are also disclosed.
    Type: Grant
    Filed: February 20, 1980
    Date of Patent: May 11, 1982
    Assignee: General Electric Company
    Inventors: Otto S. Zamek, Denis R. Pauze', Richard J. Jablonski
  • Hot-melt polyesterimide-polyisocyanate electrical coating compositions
    Patent number: 4296229
    Abstract: Hot-melt electrical coating compositions comprise high solids content polyesterimides prepared to an acid number of less than 6-7 in the presence of a monoether or monoester of a glycol or polyglycol and reacted hot with a blocked polyisocyanate. Such virtually solventless compositions provide insulation coatings on electrical conductors which have superior flexibility, especially after aging.
    Type: Grant
    Filed: May 30, 1980
    Date of Patent: October 20, 1981
    Assignee: General Electric Company
    Inventors: Denis R. Pauze, Otto S. Zamek
  • Acid-terminated polyester imide wire enamels
    Patent number: 4273917
    Abstract: Wire enamels comprise acid-terminated polyester imides prepared to an acid number of not less than 6 in the presence of a monoether or monoester of a glycol or polyglycol and dissolved in a solvent comprising predominantly a polar oxygenated compound selected from a monoether or monoester of an alkylene, or polyalkylene, glycol. Such enamels provide insulation coatings on electrical conductors which have superior flexibility, especially after aging.
    Type: Grant
    Filed: December 4, 1979
    Date of Patent: June 16, 1981
    Assignee: General Electric Company
    Inventor: Otto S. Zamek
  • Polyester imide wire enamels
    Patent number: 4269752
    Abstract: Superior wire enamels comprise polyester imides prepared in the presence of a monophenyl ether of a glycol having a free secondary hydroxyl group and dissolved in a solvent comprising predominantly a polar oxygenated compound selected from a monoether or monoester of an alkylene, or polyalkylene, glycol. Electrical conductors coated with such enamels are also disclosed.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: May 26, 1981
    Assignee: General Electric Company
    Inventors: Otto S. Zamek, Denis R. Pauze, Richard J. Jablonski
  • Polyester imide wire enamels
    Patent number: 4267231
    Abstract: Superior wire enamels comprise polyester imides prepared in the presence of a monobutyl ether of a mixed diglycol having a free secondary hydroxyl group and dissolved in a solvent comprising predominantly a polar oxygenated compound selected from a monoether or monoester of an alkylene, or polyalkylene, glycol. Electrical conductors coated with such enamels are also disclosed.
    Type: Grant
    Filed: June 29, 1979
    Date of Patent: May 12, 1981
    Assignee: General Electric Company
    Inventor: Otto S. Zamek
  • Polyester wire enamels
    Patent number: 4251423
    Abstract: Superior wire enamels comprise a polyester of a dibasic organic acid, a polyhydric alcohol having at least 3 hydroxyl groups, and 1,2-propylene glycol in a polar oxygenated solvent comprising a monoether or monoester of an alkylene or polyalkylene glycol. Electrical conductors coated with such enamels are also disclosed.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: February 17, 1981
    Assignee: General Electric Company
    Inventor: Otto S. Zamek