Patents by Inventor Elmar H. Jancis

Elmar H. Jancis 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).

  • Stabilized vinyl aromatic composition
    Patent number: 4774374
    Abstract: A vinyl aromatic composition stabilized against polymerization comprising (a) a vinyl aromatic compound and (b) an effective amount of a stabilizer system in which the active ingredient consists essentially of an oxygenated species formed by the reaction of oxygen and an N-aryl-N'-alkyl-p-phenylenediamine. Also disclosed is a process for inhibiting the polymerization of vinyl aromatic compounds employing such an oxygenated species.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: September 27, 1988
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Gerald J. Abruscato, Elmar H. Jancis, Paul E. Stott
  • Phenylenediamine solubilizer for dinitrophenol in aromatic solvent
    Patent number: 4664845
    Abstract: Compositions, comprised of a dinitrophenol in an aromatic hydrocarbon solvent, which compositions further comprise a sufficient amount of a phenylenediamine such that a greater amount of dinitrophenol is in solution than would be present in solution if such phenylenediamine were not present, exhibit unexpectedly desirable low temperature stability, and may be diluted with additional solvent to be employed as polymerization inhibitors for vinyl aromatic compounds.
    Type: Grant
    Filed: January 19, 1986
    Date of Patent: May 12, 1987
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Elmar H. Jancis, Paul E. Stott
  • Hydrolytically stable antioxidant composition
    Patent number: 4402858
    Abstract: Stabilizing composition comprising (I) a phosphite P(OR).sub.3 and (II) an organic metal salt M(OOCR.sup.1).sub.n, the P/M molar ratio being from 78/1 to 900/1.
    Type: Grant
    Filed: April 14, 1982
    Date of Patent: September 6, 1983
    Assignee: Uniroyal, Inc.
    Inventors: Janet D. Capolupo, Elmar H. Jancis
  • Phenolic esteramide antioxidants
    Patent number: 4305868
    Abstract: Novel phenolically substituted esterbisamides as antioxidants useful for the protection of organic materials such as synthetic and natural rubbers, plastics and petroleum products against oxidative degradation.
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: December 15, 1981
    Assignee: Uniroyal, Inc.
    Inventors: Edward L. Wheeler, Elmar H. Jancis, Richard A. Gencarelli, Franklin H. Barrows
  • Polyfunctional phenolic oxamide antioxidants
    Patent number: 4304714
    Abstract: Novel phenolic oxamide antioxidants for protecting organic materials such as synthetic and natural rubbers, petroleum products, and plastics from oxidative degradation.
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: December 8, 1981
    Assignee: Uniroyal, Inc.
    Inventors: Edward L. Wheeler, Elmar H. Jancis, Richard A. Gencarelli, Franklin H. Barrows
  • Process for making 3-(3,5-dialkyl-4-hydroxyphenyl)propionate esters of hydroxyalkyloxamides
    Patent number: 4263446
    Abstract: An improved method for making 3-(3,5-dialkyl-4-hydroxyphenyl)propionates of hydroxyalkyloxamides involved heating the hydroxyalkyloxamide with a lower alkyl ester of 3-(3,5-dialkyl-4-hydroxyphenyl)propionic acid in the presence of an alkanestannoic acid at a temperature of 150.degree. to 230.degree. C., the lower boiling alcohol being removed by distillation.
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: April 21, 1981
    Assignee: Uniroyal, Inc.
    Inventors: Edward L. Wheeler, Elmar H. Jancis
  • 9-Thiabicyclo [3,3,1] nonanediyl-2,6-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate]
    Patent number: 4221702
    Abstract: A compound of the formula ##STR1## is useful in protecting organic materials normally subject to oxidative degradation. Among the products benefiting from the incorporation of this phenolic antioxidant are synthetic and natural rubbers, petroleum products and plastics.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: September 9, 1980
    Assignee: Uniroyal, Inc.
    Inventors: Edward L. Wheeler, Elmar H. Jancis
  • Hindered phenolic nitro compounds as antioxidants
    Patent number: 4153597
    Abstract: A stabilizer suitable for use to protect organic materials into which it is soluble or miscible against oxidative degradation having the general formula ##STR1## wherein R.sub.1 and R.sub.2 are lower alkyl or a radical of the structure ##STR2## wherein "x" represents a tertiary butyl radical.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: May 8, 1979
    Assignee: Uniroyal, Inc.
    Inventors: Edward L. Wheeler, Elmar H. Jancis
  • Control of acarids using certain benzothiazoles or benzothiazolines
    Patent number: 4020165
    Abstract: Compounds having either of the structures ##STR1## have strong acaricidal activity, in which R is a phenyl or naphthyl group, or phenyl with certain designated substitution. Thus, mites may be controlled on such crops as cotton by applying such compounds as 2-(1-naphthyl)benzothiazoline or 2-(5-t-butyl-2-hydroxyphenyl)benzothiazole.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: April 26, 1977
    Assignee: Uniroyal Inc.
    Inventors: Winchester L. Hubbard, Robert E. Grahame, Jr., Rupert A. Covey, Elmar H. Jancis
  • Control of acarids using certain benzothiazoles or benzothiazolines
    Patent number: 3974287
    Abstract: Compounds having either of the structures ##SPC1##Have strong acaricidal activity, in which R is a phenyl or naphthyl group, or phenyl with certain designated substitution. Thus, mites may be controlled on such crops as cotton by applying such compounds as 2-(1-naphthyl)benzothiazoline or 2-(5-t-butyl-2-hydroxyphenyl)benzothiazole.
    Type: Grant
    Filed: August 20, 1975
    Date of Patent: August 10, 1976
    Assignee: Uniroyal Inc.
    Inventors: Winchester L. Hubbard, Robert E. Grahame, Jr., Rupert A. Covey, Elmar H. Jancis