Plural Rings Bonded Directly To The Same Sulfur Patents (Class 568/48)
  • Patent number: 4341905
    Abstract: Hydroxyalkylphenyl ether or thioether compounds are prepared by reaction of cyclic organic carbonate compounds with phenols or thiophenols in the presence of an alkali metal halide catalyst.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: July 27, 1982
    Assignee: The Dow Chemical Company
    Inventor: Paul E. Strege
  • Patent number: 4326047
    Abstract: Polyether hydroxyl-containing compounds are prepared by reacting a monoepoxy-containing compound such as propylene oxide with a compound containing one or more OH and/or SH groups such as a low molecular weight adduct of glycerine and propylene oxide in the presence of a solid calcium naphthenate catalyst. The solid form of the catalyst is more efficient than the liquid form.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: April 20, 1982
    Assignee: The Dow Chemical Company
    Inventor: Ronald L. Yates
  • Patent number: 4310702
    Abstract: Sulfuryl chloride is reacted in the liquid phase with an organic reactant which is a ketone or aromatic alcohol unsubstituted on both ortho carbons in the presence of a moderator selected from the group consisting of aliphatic alcohols of 1-3 carbons and aliphatic ethers of 2-6 carbons, with sufficient moderator being present to selectively produce a product substantially free of compounds with more than one chlorine atom per carbonyl or aromatic hydroxy. The products, such as monochloroacetone, monochlorocyclohexanone, monochlorophenol and 2,2-bis(3-chloro-4-hydroxyphenyl)propane, are useful as chemical intermediates and as monomers for flame retardant polymers.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: January 12, 1982
    Assignee: Allied Corporation
    Inventors: Divakaran Masilamani, Milorad M. Rogic
  • Patent number: 4309293
    Abstract: Sulfurized phenols, e.g., phenol sulfides, disulfides or polysulfides, oligomers thereof or mixtures of same when treated with alkyl vinyl ethers provide excellent metal anti-corrosivity characteristics without significant reduction of antioxidant, antiwear or other desired properties when incorporated into organic media such as lubricants.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: January 5, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Milton Braid
  • Patent number: 4308199
    Abstract: Mercaptophenols are reacted with compounds containing olefinic unsaturation, or polycyclic olefins, or dihydroxy compounds to form phenolic antioxidants such as 3,8-bis(4-hydroxyphenylthio)-tricyclo[5.2.1.0..sup.2,6 ] decane; 1,4-bis[2-(4-hydroxyphenylthio)ethyl]benzene and age resistant polymers containing said antioxidants.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: December 29, 1981
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kirkwood S. Cottman
  • Patent number: 4305832
    Abstract: Phenol sulfides, disulfides, polysulfides and oligomers thereof when reacted with alkyl vinyl ethers provide addition products substantially comprised of novel acetal derivatives which are effective oxidation inhibitors when incorporated into organic media normally susceptible to oxidative degradation.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: December 15, 1981
    Assignee: Mobil Oil Corporation
    Inventor: Milton Braid
  • Patent number: 4291177
    Abstract: Highly pure dihalodiphenols or predetermined, statistical mixtures of unreacted, monohalo- and dihalodiphenols are obtained reacting the diphenol, which is suspended or dissolved in a suitable solvent, with a halogen while concurrently purging the reaction with a gas that is inert to the reaction.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: September 22, 1981
    Assignee: General Electric Company
    Inventors: Victor Mark, Charles A. Wilson, II
  • Patent number: 4283566
    Abstract: An improved process for obtaining halogenated diphenols which can be pure dihalodiphenols or predetermined, statistical mixtures comprising unreacted diphenol, monohalodiphenols and dihalodiphenols.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: August 11, 1981
    Assignee: General Electric Company
    Inventor: Victor Mark
  • Patent number: 4282391
    Abstract: A continuous process for obtaining highly pure, high molecular weight aromatic polycarbonates from highly pure, halogenated diphenols.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: August 4, 1981
    Assignee: General Electric Company
    Inventors: Clayton B. Quinn, Charles A. Wilson, II
  • Patent number: 4261922
    Abstract: Hydroxyalkylphenyl ether compounds are prepared by reaction of cyclic organic carbonate compounds with phenols in the presence of potassium iodide catalyst.
    Type: Grant
    Filed: July 26, 1979
    Date of Patent: April 14, 1981
    Assignee: The Dow Chemical Company
    Inventor: Kenneth M. Kem
  • Patent number: 4242527
    Abstract: A process for purifying crude diphenols via a water co-solvent system is disclosed.
    Type: Grant
    Filed: May 23, 1979
    Date of Patent: December 30, 1980
    Assignee: General Electric Company
    Inventors: Victor Mark, Charles V. Hedges
  • Patent number: 4226800
    Abstract: Phenolic materials containing propargyl groups are prepared by reacting a polyhydric, phenolic material with propargyl bromide, the reaction being conducted in an aqueous sodium hydroxide solution. The products can be thermally polymerized to polymers which are useful as adhesives and as matrix resins in the fabrication of composites.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: October 7, 1980
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Lewellyn G. Picklesimer
  • Patent number: 4210765
    Abstract: An improved process for obtaining halogenated diphenols which can be pure dihalodiphenols or predetermined, statistical mixtures comprising unreacted diphenol, monohalodiphenols and dihalodiphenols.
    Type: Grant
    Filed: February 28, 1978
    Date of Patent: July 1, 1980
    Assignee: General Electric Company
    Inventor: Victor Mark