Patents Represented by Attorney Rasma B. Balodis

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  • Fuel compositions containing polyalkylated 1,3,4-thiadiazoles
    Patent number: 5062863
    Abstract: A diesel fuel composition comprising a major portion of middle distillates and a minor wear improving amount of a 1,3,4-thiadiazole derived from 2,5-dimercapto-1,3,4-thiadiazole and one or two moles of polyolefin having 50 to 400 carbon atoms. Furthermore, the 5-position of the 2-mercapto-1,3,4-thiadiazole may be substituted by alkylthio, 2-hydroxyalkylthio, amino or hydroxy group. The 1,3,4-thiadiazole compounds are also effective dispersants when incorporated into fuel compositions.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: November 5, 1991
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Thomas J. Karol
  • Substituted 2,5-dimercapto-1,3,4-thiadiazoles and lubricating compositions containing same
    Patent number: 5026865
    Abstract: Disclosed are novel reaction products of 2,5-dimercapto-1,3,4-thiadiazole and epoxy compounds. These compounds are shown to be effective antiwear agents and antioxidants in lubricating compositions.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: June 25, 1991
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Thomas J. Karol
  • 2-hydroxy-1,3,4-thiadiazoles and lubricating compositions containing same
    Patent number: 4935157
    Abstract: This invention concerns novel 2-hydroxy-5-alkylthio-1,3,4-thiadiazoles wherein the alkyl group may be substituted by hydroxy and phenoxy groups. The compounds are effective antiwear agents and antioxidants when incorporated into lubricating compositions.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: June 19, 1990
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Thomas J. Karol
  • Stabilizer compositions for polyols and polyurethane foam
    Patent number: 4933374
    Abstract: Polyether polyols and polyurethane foams are stabilized by including therein a stabilizer composition of 2,6-di-tert-butyl-4-sec-butylphenol and a reaction product of diisobutylene, styrene and diphenylamine wherein the ratio of the phenol to the reaction product is about 1:5 to 5:1. The stabilizer composition may further include trihydrocarbyl phosphite to stabilize the color of same.
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: June 12, 1990
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventors: Richard A. Suhoza, Bruce R. Garney
  • Polyalkylated 1,3,4-thiadiazoles and lubricating compositions containing same
    Patent number: 4904403
    Abstract: Disclosed are novel compounds derived from 2,5-dimercapto-1,3,4-thiadiazole and one or two moles of polyolefin having 5 to 400 carbon atoms. Furthermore, the 5-position of the 2-mercapto-1,3,4-thiadiazole may be substituted by alkylthio, 2-hydroxyalkylthio, amino or hydroxy group. The compounds are effective dispersants, antiwear agents and antioxidants when incorporated into lubricating compositions.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: February 27, 1990
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Thomas J. Karol
  • Organic molybdenum complexes
    Patent number: 4889647
    Abstract: New molbdenum complexes prepared by reacting (a) a fatty oil, (b) diethanolamine and (c) a molybdenum source are described. The molybdenum complexes impart antifriction and antiwear properties to lubricating compositions and decrease fuel consumption in internal combustion engine using same.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: December 26, 1989
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventors: Eugene V. Rowan, Thomas J. Karol, Homer H. Farmer
  • Antioxidant synergists for lubricating compositions
    Patent number: 4880551
    Abstract: This invention relates to synergistic antioxident compositions consisting of (a) 1-[di(4-octylphenyl)aminomethyl]tolutriazole and (b) an antioxidant selected from the group consisting of methylenebis(di-n-butyldithiocarbamate), 2,6-di-t-butyl-4-sec-butylphenol, 2,6-di-t-butyl-4-methylphenol and butylated phenol mixture and lubricating compositions containing same.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: November 14, 1989
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Lester A. Doe
  • Fuel compositions containing maleic derivatives of 2,5-dimercapto-1,3,4-thiadiazole
    Patent number: 4880437
    Abstract: A diesel fuel composition comprising a major portion of middle distillates and a minor wear improving amount of a reaction product of one mole of a maleic compound and one mole of 2,5-dimercapto-1,3,4-thiadiazole which may be further reacted in the 5-position with one mole of maleic compound or one mole by alpha-pinene.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: November 14, 1989
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Thomas J. Karol
  • Rubber compositions containing phenol derivatives of 1,3,4-thiadiazole
    Patent number: 4818778
    Abstract: A process is disclosed for stabilization of natural rubber against oxidative degradation by incorporating therein phenolic derivatives of 3-hydroxymethyl-5-hydroxymethylthio-1,3,4-thiadiazolidine-2-thione and stabilized rubber compositions thereof.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: April 4, 1989
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Lester A. Doe, Jr.
  • Fuel compositions containing terpene derivatives of 2,5-dimercapto-1,3,4-thiadiazole
    Patent number: 4795479
    Abstract: A diesel fuel composition comprising a major portion of middle distillates and a minor wear improving amount of a reaction product of one mole of a terpene and one mole of 2,5-dimercapto-1,3,4-thiadiazole which may be further reacted in the 5-position with one mole of terpene or one mole of alkyl, hydroxyalkyl, phenylalkyl and alkylated phenylalkyl compound.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: January 3, 1989
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Thomas J. Karol
  • Terpene derivatives of 2,5-dimercapto-1,3,4-thiadiazoles and lubricating compositions containing same
    Patent number: 4761482
    Abstract: Disclosed are reaction products of terpene compounds and 2,5-dimercapto-1,3,4-thiadiazole. The reaction products are useful as antiwear agents and antioxidants in lubricating compositions.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: August 2, 1988
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Thomas J. Karol
  • Rubber compositions containing polymeric phenol derivatives of 1,3,4-thiadiazole
    Patent number: 4734457
    Abstract: A process is disclosed for stabilization of natural rubber against oxidative degradation by incorporating therein phenolic derivatives of 3-hydroxymethyl-5-hydroxymethylthio-1,3,4-thiadiazolidine-2-thione and stabilized rubber compositions thereof.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: March 29, 1988
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Lester A. Doe, Jr.
  • Surface coating compositions containing substituted 1,3,4-thiadiazoles
    Patent number: 4711915
    Abstract: Surface coating compositions having improved resistance to attack by fungi and other microorganisms contain a biocidally effective amount of an antimicrobially active compound having the structural formula ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group having 1-8 carbon atoms.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: December 8, 1987
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Lester A. Doe, Jr.
  • Rubber compositions containing amine derivatives of 1,3,4-thiadiazole
    Patent number: 4704426
    Abstract: A process is disclosed for stabilization of natural rubber against oxidative degradation in the presence of copper by incorporating therein dairylamine derivatives of 3-hydroxymethyl-5-hydroxymethylthio-1,3,4-thiadiazolidine-2-thione and stabilized rubber compositiions thereof.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: November 3, 1987
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Lester A. Doe, Jr.
  • Norbornene derivatives of phenols
    Patent number: 4677149
    Abstract: Novel phenols substituted by at least one 5-norbornen-2-ylmethoxymethyl group and optionally, by methyl or t-butyl groups are used as nondiscoloring antiozonants and antioxidants in chloroprene polymers.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: June 30, 1987
    Assignee: R. T. Wanderbilt Company, Inc.
    Inventor: Lester A. Doe, Jr.
  • Dicocoamine derivatives of 2,5-dimercapto-1,3,4-thiadiazole
    Patent number: 4617136
    Abstract: This invention relates to novel dicocoamine derivatives of 2-(octyldithio)-5-mercapto-1,3,4-thiadiazole. The compounds are suitable for use as corrosion inhibitors in lubricating compositions.
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: October 14, 1986
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Lester A. Doe, Jr.
  • Lubricating compositions containing 5,5'-dithiobis(1,3,4-thiadiazole-2-thiol)
    Patent number: 4517103
    Abstract: Lubricating compositions having improved extreme pressure properties are disclosed. The compositions comprise a lubricating grease or a lubricating oil dispersion and an effective amount of 5,5'-dithiobis(1,3,4-thiadiazole-2-thiol).
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: May 14, 1985
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventors: David M. Hoffman, John J. Feher, Homer H. Farmer
  • Organomolybdenum based additives and lubricating compositions containing same
    Patent number: 4360438
    Abstract: This invention relates to synergistic antiwear compositions comprising a sulfurized molybdenum dialkyldithiocarbamate and an organic sulfur compound selected from the group consisting of dithiocarbamate acid esters, sulfurized oils and polysulfurized olefins. Lubricating compositions containing the synergistic compositions possess good antiwear properties and improved extreme pressure and oxidation stability.
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: November 23, 1982
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventors: Eugene V. Rowan, Homer H. Farmer
  • Alkyl nitrite compositions
    Patent number: 4309303
    Abstract: This invention relates to a method of stabilizing liquid alkyl nitrites by adding ethyl hydroxyethyl cellulose, calcium silicate and mixtures thereof and mixing to produce solid state compositions and to stabilized compositions thereof.
    Type: Grant
    Filed: February 6, 1980
    Date of Patent: January 5, 1982
    Inventor: Walter F. Boyce
  • Thickeners for acid cleaning compositions
    Patent number: 4302253
    Abstract: This invention relates to storage stable liquid cleaning compositions for use on porcelain type surfaces wherein said compositions comprise an aqueous mineral acid solution thickened with smectite clay and xanthan gum, a stabilizing amount of 1-hydroxyethyl-2-alkylimidazoline and optionally, a chelate. The compositions may further contain a disinfectant.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: November 24, 1981
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Peter A. Ciullo