Patents by Inventor Kimon C. Dardoufas

Kimon C. Dardoufas 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: 5246988
    Abstract: A heat and oxidation stabilized polymeric article, preferably fiber or film, is prepared by applying to the article a composition which comprises effective amounts of a nitrogen-containing antioxidant and a compatible carrier. When the composition is applied as a process finish, the carrier is a lubricant which is the reaction product of an alkylene oxide with a compound selected from the group consisting of a fatty acid having about 5 to 36 carbon atoms and an alcohol having about 5 to 36 carbon atoms, with the number of moles of alkylene oxide per mole of acid or alcohol ranging from 2 to 20. The stabilized article has utility in high performance applications.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: September 21, 1993
    Assignee: AlliedSignal Inc.
    Inventors: Robert C. Wincklhofer, Gene C. Weedon, Robert M. Marshall, Kimon C. Dardoufas
  • Patent number: 4416787
    Abstract: A yarn finish composition is disclosed for incorporation with synthetic organic polymer yarn or yarn products to render the same oil repellent and resistant to soiling. The composition comprises (a) a quaternary ammonium salt selected from the group consisting of trialkyl dodecyl ammonium salt and cocotrialkyl ammonium salt, wherein the alkyl is methyl or ethyl and the anion is selected from the group consisting of chloride, bromide, iodide, sulfate, ethosulfate, methosulfate and mixtures thereof, and (b) a fluorochemical compound consisting of polycarboxybenzene esterified with certain partially fluorinated alcohols and with hydroxy-containing organic radicals such as 2-hydroxyethyl, glyceryl, and chlorohydryl or bromohydryl.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: November 22, 1983
    Assignee: Allied Corporation
    Inventors: Robert M. Marshall, William A. Archie, Kimon C. Dardoufas
  • Patent number: 4397985
    Abstract: A fiber finish composition, a process for treating polyester yarn therewith and polyester yarn so treated are all disclosed. The fiber finish composition, which is preferably applied as an overfinish to the yarn subsequent to drawing of the yarn, comprises about 60 to 90 weight percent of water; about 0.3 to 10 weight percent of gamma-glycidoxypropyltrimethoxysilane; about 0.05 to 4.0 weight percent of a catalyst selected from the group consisting of urea and a solution of a cobalt, stannous, iron, nickel, zinc, manganese or chromium salt of 2-ethylhexoic acid or lauric acid in a carrier which is miscible in water; and about 6.5 to 38.6 weight percent of a compatible noncontinuous phase. The catalyst, alternatively, may form 0.00025 to 0.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: August 9, 1983
    Assignee: Allied Corporation
    Inventors: Robert M. Marshall, Kimon C. Dardoufas, Stanley D. Lazarus
  • Patent number: 4390591
    Abstract: An oil-in-water yarn finish composition, a process for treating yarn therewith and yarn so treated are all disclosed. The finish composition is preferably applied as an overfinish to the yarn. The nonaqueous portion of the composition comprises transesterified high oleic oil and high lauric oil; polyoxyalkylene castor oil; triglycerol monooleate and/or triglycerol dioleate; decaglycerol tetraoleate and/or decaglycerol pentaoleate; 4,4' butylidene-bis(6-tert-butyl-m-cresol); an emulsion stabilizer selected from the group consisting of a salt of dialkyl sulfosuccinate neat wherein each alkyl group comprises 8 to 18 carbon atoms, a salt of dialkyl sulfosuccinate in solution or mixture wherein each alkyl group comprises 9 to 18 carbon atoms, a mixture of a salt of dioctyl sulfosuccinate and a salt of an aromatic carboxylic acid; and a silane having the structural formula ##STR1## wherein n=2 to 5.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: June 28, 1983
    Assignee: Allied Corporation
    Inventors: Robert M. Marshall, Kimon C. Dardoufas
  • Patent number: 4371658
    Abstract: An aqueous spin finish, a process for treating polyamide yarn therewith and polyamide yarn so treated are all disclosed. The oil portion of the spin finish comprises a glyceride, ethoxylated oleyl alcohol, ethoxylated nonyl phenol, ethoxylated castor oil, an oxidized polyethylene, a non-nitrogen nonionic emulsifier for the oxidized polyethylene, and an alkali hydroxide. The spin finish has a pH of about 7 to 12. The spin finish has improved thermal stability which results in lower emissions during treatment of tire cord formed from polyamide yarn treated with the spin finish. Cord to rubber adhesion is also improved.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: February 1, 1983
    Assignee: Allied Corporation
    Inventors: Robert M. Marshall, Kimon C. Dardoufas
  • Patent number: 4293460
    Abstract: An aqueous spin finish, a process for treating polyamide yarn therewith and polyamide yarn so treated are all disclosed. The oil portion of the spin finish comprises a rearranged glyceride, ethoxylated oleyl alcohol, ethoxylated nonyl phenol, ethoxylated castor oil, an oxidized polyethylene, a non-nitrogen nonionic emulsifier for the oxidized polyethylene, and an alkali hydroxide. The spin finish has a pH of about 7 to 12. The spin finish has improved thermal stability which results in lower emissions during treatment of tire cord formed from polyamide yarn treated with the spin finish. Cord to rubber adhesion is also improved.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: October 6, 1981
    Assignee: Allied Chemical Corporation
    Inventors: Robert M. Marshall, Kimon C. Dardoufas
  • Patent number: 4283292
    Abstract: Emulsion and several spin finishes are disclosed for incorporation with synthetic organic polymer yarn or yarn products to render the same oil repellent and resistant to soiling. The emulsions and spin finishes all include a yarn finish composition which comprises (a) a solution of a salt of dioctyl sulfosuccinate, propylene glycol and water, and (b) a fluorochemical compound consisting of polycarboxybenzene esterified with certain partially fluorinated alcohols and with hydroxyl-containing organic radicals such as 2-hydroxyethyl, glyceryl, and chlorohydryl or bromohydryl.
    Type: Grant
    Filed: December 12, 1979
    Date of Patent: August 11, 1981
    Assignee: Allied Chemical Corporation
    Inventors: Robert M. Marshall, Kimon C. Dardoufas
  • Patent number: 4210700
    Abstract: An improved multifilament polyethylene terephthalate yarn is prepared by first applying to the yarn a liquid composition comprising hexadecyl stearate, refined coconut oil, ethoxylated tallow amine, ethoxylated lauryl alcohol, sodium salt of alkylarylsulfonate, dinonyl-sodium-sulfosuccinate, and a mineral oil, and then applying to the yarn a liquid composition which is an oil-in-water emulsion, the oil portion of which comprises coconut oil, polyoxyethylene hydrogenated castor oil, and phosphated polyoxyethylated tridecyl alcohol neutralized with potassium hydroxide. The yarn is preferably used in tire cords for the construction of pneumatic passenger tires and results in excellent adhesion of tire cord to rubber.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: July 1, 1980
    Assignee: Allied Chemical Corporation
    Inventors: Robert M. Marshall, Kimon C. Dardoufas
  • Patent number: 4192754
    Abstract: A yarn finish composition is disclosed for incorporation with synthetic organic polymer yarn or yarn products to render the same oil repellent and resistant to soiling. The composition comprises (a) a solution of a salt of dioctyl sulfosuccinate, propylene glycol and water, and (b) a fluorochemical compound consisting of polycarboxybenzene esterified with certain partially fluorinated alcohols and with hydroxyl-containing organic radicals such as 2-hydroxyethyl, glyceryl, and chlorohydryl or bromohydryl.
    Type: Grant
    Filed: December 28, 1978
    Date of Patent: March 11, 1980
    Assignee: Allied Chemical Corporation
    Inventors: Robert M. Marshall, Kimon C. Dardoufas
  • Patent number: 4190545
    Abstract: Several spin finishes are disclosed for incorporation with synthetic organic polymer yarn or yarn products to render the same oil repellent and resistant to soiling. All of the spin finishes include a yarn finish composition which comprises (a) a nonhomogeneous mixture of a salt of dinonyl sulfosuccinate, a salt of dimethyl naphthalene sulfonate, and ammonium perfluoroalkyl carboxylate, and (b) a fluorochemical compound consisting of polycarboxybenzene esterified with certain partially fluorinated alcohols and with hydroxy-containing organic radicals such as 2-hydroxyethyl, glyceryl, and chlorohydryl or bromohydryl.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: February 26, 1980
    Assignee: Allied Chemical Corporation
    Inventors: Robert M. Marshall, Kimon C. Dardoufas
  • Patent number: 4129507
    Abstract: An improved spin finish particularly for polyamide yarn to be processed into tire cord, comprising an oil in water emulsion, said oil portion consisting essentially of specified proportions of an oxidized polyethylene wax, a white mineral oil having a viscosity of 300 to 500 S.U.S. at 100.degree. F., a polyoxyethylene oleyl phosphate, and a sulfonated succinic acid ester of decyl alcohol, said oil in water emulsion being adjusted to pH 7.1 to 8.0 with sodium hydroxide.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: December 12, 1978
    Assignee: Allied Chemical Corporation
    Inventors: Robert M. Marshall, Sung K. Pak, Kimon C. Dardoufas
  • Patent number: 4126564
    Abstract: A spin finish composition for polyamide yarn to be processed into plied, bulked, continuous filament carpet yarn, comprising coconut oil, polyoxyethylene hydrogenated castor oil and the potassium salt of polyoxyethylene tridecyl alcohol phosphate. This finish improves processing of the yarn at high temperature, as by steam jet texturing, and prevents excessive tension build-up during subsequent cabling operations.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: November 21, 1978
    Assignee: Allied Chemical Corporation
    Inventors: Robert M. Marshall, Kimon C. Dardoufas