Patents by Inventor Edmund J. Piasek

Edmund J. Piasek 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).

  • Benzene sulfonic acid catalyzed aromatic Mannich products from alkyl phenols
    Patent number: 4425249
    Abstract: A Mannich condensation reaction of an alkyl phenol, a formaldehyde-yielding reagent, an amine, and about 0.001 to 2.0 moles of an oil soluble benzene sulfonic acid per mole of amine.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: January 10, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: Paul J. Cahill, Edmund J. Piasek, deceased, by Evelyn W. Hunt, administrator
  • Benzene sulfonic acid modified aromatic Mannich products from alkyl phenols
    Patent number: 4425245
    Abstract: A Mannich condensation reaction of an alkyl phenol, a formaldehyde-yielding reagent, an amine, and about 0.001 to 2.0 moles of an oil soluble benzene sulfonic acid per mole of amine.
    Type: Grant
    Filed: September 11, 1981
    Date of Patent: January 10, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: Paul J. Cahill, Edmund J. Piasek, deceased, by Evelyn W. Hunt, administratrix
  • Terpolymer alkylated phenol
    Patent number: 4070402
    Abstract: Phenols alkylated with high molecular weight ethylene-propylene-diene terpolymers are obtained in essentially quantitative yields and with no measurable fragmentation of terpolymer by reacting terpolymer with a large excess of phenol, in the presence of BF.sub.3 as catalyst, at alkylation temperatures of about 170.degree.-300.degree. F. The preferred terpolymers consist essentially of about 35-45 mole percent propylene, 65-55 mole percent ethylene, and about 1.0-2.5 mole percent of a 5-alkenyl-2-norbornene such as 5-ethylidene-2-norbornene. The novel terpolymer alkylated phenol compositions are useful as intermediates for the preparation of multifunctional addition agents for lubricating oils, for example addition agents having combined dispersant-viscosity index improving properties.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: January 24, 1978
    Assignee: Standard Oil Company
    Inventors: Robert E. Karll, Edmund J. Piasek, deceased, by Evelyn W. Hunt, administratrix
  • Lubricating oils containing high molecular weight Mannich condensation products
    Patent number: 3985802
    Abstract: Oil soluble high molecular weight Mannich condensation products formed by reacting (1) high molecular weight alkyl-substituted hydroxy aromatic compounds whose alkyl-substituent has a number average molecular weight (Mn) from about 600-100,000, (2) a compound containing at least one HN < group, and (3) an aldehyde in the respective molar reactant ratio of 1:0.1-10:1.0-10, are highly efficient ashless type (metal free) dispersant-detergent lubricant oil addition agents. Lubricating oils containing these compositions provide a high degree of protection against the deposition of sludge and varnish and corrosion when used as crankcase lubricants. Bis-Mannich products prepared by condensing (1) a 850-2500 Mn polyalkyl-substituted phenol, (2) an alkylene polyamine and (3) formaldehyde in the respective molar ratio of 1.0:0.7-1.0:1.5-2.
    Type: Grant
    Filed: October 8, 1974
    Date of Patent: October 12, 1976
    Assignee: Standard Oil Company (Indiana)
    Inventors: Edmund J. Piasek, Robert E. Karll