Patents Represented by Attorney Charles T. Watts

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  • Phosphorus containing block polymers of polyphenylene oxide
    Patent number: 4156699
    Abstract: Phosphorus containing linear, branched and/or crosslinked block polymers of polyphenylene oxides are described which comprise di- and/or tri-functional phosphoryl radicals coupled with mono- and/or polyphenoxy radicals, said polyphenoxy radicals being derived from (a) polyphenylene oxides having an average hydroxyl group per molecule value greater than zero including 1.0 or less, or (b) polyphenylene oxide-quinone coupled polymers having an average hydroxyl group per molecule value greater than zero including 2.0 or less, and mixtures thereof. The resulting polyphenylene oxides can be used to prepare flame-retardant polyphenylene oxide articles of manufacture.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: May 29, 1979
    Assignee: General Electric Company
    Inventor: Dwain M. White
  • Poly(hydroxy) telechelic styrene polymer process
    Patent number: 4156764
    Abstract: A poly(hydroxy) telechelic styrene polymer polymerization process comprising contacting an olefin, a free radical polymerization initiator, and a poly(hydroxyorgano) polysulfide is described. The poly(hydroxy) terminated styrene polymers can be end-capped and/or coupled with other polymeric materials. The styrene polymers can be molded, calendered, or extruded as films, sheets, fibers, laminates or other useful articles of manufacture.
    Type: Grant
    Filed: May 19, 1978
    Date of Patent: May 29, 1979
    Assignee: General Electric Company
    Inventor: Dwain M. White
  • Isomerization of dihydroxydiphenyl compounds
    Patent number: 4156790
    Abstract: Isomerization of an ortho, para-isomer of a dihydroxydiphenyl chloroethylene compound to the corresponding para, para-isomer can be effected by treatment of the former with trifluoromethanesulfonic acid in the presence of phenol.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: May 29, 1979
    Assignee: General Electric Company
    Inventor: John R. Campbell
  • Acyl coupled polymers of quinone-coupled polyphenylene oxides
    Patent number: 4156770
    Abstract: Linear, branched and/or cross-linked acyl coupled polymers of quinone-coupled polyphenylene oxides are described which comprise di- and/or tri-functional acyl radicals coupled with polyphenoxy radicals, said polyphenoxy radicals being derived from quinone-coupled polyphenylene oxides having an average hydroxyl group per molecule value greater than zero including 2.0 or less. The resulting polyphenylene oxides can be used to prepare various articles of manufacture.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: May 29, 1979
    Assignee: General Electric Company
    Inventor: Dwain M. White
  • Alumina-based ceramics for core materials
    Patent number: 4156614
    Abstract: Cores made of alumina-based ceramics, such as .beta.-alumina materials, are substantially non-reactive with directionally solidified eutectic and superalloy materials, do not cause hot cracking of the same, and are easily leachable from the cast metal.
    Type: Grant
    Filed: October 6, 1977
    Date of Patent: May 29, 1979
    Assignee: General Electric Company
    Inventors: Charles D. Greskovich, Robert C. DeVries
  • Process for preparing dihydroxydiphenyl chloroethylenes
    Patent number: 4156099
    Abstract: The compound 1,1-dichloro-2,2-bis-(4-hydroxyphenyl)ethylene can be prepared by the reaction of 1,1-dichloro-2,2-diphenoxy ethylene and phenol in the presence of triflic acid. The formed dihydroxydiphenyl chloroethylene can be treated with a phosgenating agent to form polycarbonate resins which can be used in applications where flame retardancy is desired.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: May 22, 1979
    Assignee: General Electric Company
    Inventor: John R. Campbell
  • Flame retardant blend comprising a polyalkylene terephthalate, an organo polysiloxane-polycarbonate block copolymer, and a halogenated copolycarbonate
    Patent number: 4155898
    Abstract: A polymer blend comprising a polyalkylene terephthalate, an organopolysiloxane-polycarbonate block copolymer, and a halogenated copolycarbonate having improved impact, heat distortion and flame retardant properties. The polymer blends can be molded or formed into films, sheets, fibers, laminates, or other improved molded articles of manufacture, including reinforced articles by conventional techniques.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: May 22, 1979
    Assignee: General Electric Company
    Inventors: Richard C. Bopp, Samuel Miller
  • Purification of bisphenol-A
    Patent number: 4156098
    Abstract: Impure bisphenol-A can be purified by treatment of a phenol adduct of the latter with methylene chloride and then recovering the purified bisphenol-A.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: May 22, 1979
    Assignee: General Electric Company
    Inventor: Ming K. Li
  • Method of solids discharge from coal gasifier grate
    Patent number: 4154582
    Abstract: A method is described for the discharge of solids from a coal gasifier grate at different radial locations.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: May 15, 1979
    Assignee: General Electric Company
    Inventor: Donald E. Woodmansee
  • Process of forming phosphorus containing block polymers of polyphenylene oxide
    Patent number: 4154771
    Abstract: A process of forming phosphorus containing linear, branched and/or cross-linked polymers of polyphenylene oxides is described which comprises contacting phosphoryl halides with (a) polyphenylene oxides having an average hydroxyl group per molecule value greter than zero including 1.0 or less, or (b) quinone-coupled polyphenylene oxides having an average hydroxyl group per molecule value greater than zero including 2.0 or less, including mixtures of (a) and (b).
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: May 15, 1979
    Assignee: General Electric Company
    Inventors: George R. Loucks, Dwain M. White
  • Nb.sub.3 Ge superconductive films grown with air
    Patent number: 4154901
    Abstract: A superconductive film of Nb.sub.3 Ge is produced by providing within a vacuum chamber a heated substrate and sources of niobium and germanium, reducing the pressure within the chamber to a residual pressure no greater than about 10.sup.-5 mm Hg, introducing air into the resulting evacuated chamber in controlled amounts and vaporizing the niobium and germanium to deposit a film of Nb.sub.3 Ge on the heated substrate.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: May 15, 1979
    Assignee: General Electric Company
    Inventor: Raymond A. Sigsbee
  • Heat exchange method and device therefor for thermal energy storage
    Patent number: 4154292
    Abstract: A heat exchange device for the introduction of thermal energy into and removal of thermal energy from liquid-solid phase change material is described in which the phase change material is maintained in a container, which is slowly rotated about a generally horizontal axis at a substantially constant rotational speed. Means are provided for automatically nucleating the phase change material as required for cyclic operation. The invention is of particular utility in the use of incongruently melting hydrates for the storage of thermal energy.
    Type: Grant
    Filed: January 11, 1978
    Date of Patent: May 15, 1979
    Assignee: General Electric Company
    Inventor: Carlyle S. Herrick
  • Thermal energy storage and release utilizing combined sensible heat and latent heat of fusion
    Patent number: 4152899
    Abstract: A method for the storage and retrieval of thermal energy is disclosed, which in a two phase, two component system is able to utilize both the sensible heat of water (always one of the components) and the heat of fusion of the second component (a salt which forms a hydrate). The system to be employed must be graphically definable in a phase diagram including a liquidus, the compositional range of the system being selected so as to lie within the compositional range of the liquidus along which the system is to operate during both the heating and cooling cycles.
    Type: Grant
    Filed: January 28, 1977
    Date of Patent: May 8, 1979
    Assignee: General Electric Company
    Inventor: Carlyle S. Herrick
  • Molten salt synthesis of modified lead zirconate titanate solid solution powder
    Patent number: 4152280
    Abstract: Sodium chloride and/or potassium chloride is added to an aqueous suspension of the oxides of lead, titanium, zirconium and cationic modifier and stirred until the suspension converts to a gel which is then heated, evaporating the water and melting said chloride in which the oxides dissolve and react precipitating modified lead zirconium titanate.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: May 1, 1979
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Joseph H. Rosolowski
  • Molten salt synthesis of lead zirconate titanate solid solution powder
    Patent number: 4152281
    Abstract: Sodium chloride and/or potassium chloride is added to an aqueous suspension of the oxides of lead, titanium and zirconium and stirred until the suspension converts to a gel which is then heated evaporating the water and melting said chloride in which the oxides dissolve and react precipitating lead zirconate titanate.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: May 1, 1979
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Joseph H. Rosolowski
  • Silicon carbide and silicon bonded polycrystalline diamond body and method of making it
    Patent number: 4151686
    Abstract: A mass of diamond crystals contacting a mass of elemental silicon are confined within a pressure-transmitting medium. The resulting charge assembly is subjected to a pressure of at least 25 kilobars causing application of isostatic pressure to the contacting masses which dimensionally stabilizes them and increases the density of the mass of diamond crystals. The resulting pressure-maintained charge assembly is heated to a temperature sufficient to melt the silicon and at which no significant graphitization of the diamond occurs whereby the silicon is infiltrated through the interstices between the diamond crystals producing, upon cooling, an adherently bonded integral body.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: May 1, 1979
    Assignee: General Electric Company
    Inventors: Minyoung Lee, Robert C. DeVries, Lawrence E. Szala, Roy E. Tuft
  • Mb.sub.3 Ge Superconductive films grown with nitrogen
    Patent number: 4151330
    Abstract: A superconductive film of Nb.sub.3 Ge is produced by providing within a vacuum chamber a heated substrate and sources of niobium and germanium, reducing the pressure within the chamber to a residual pressure no greater than about 10.sup.-5 mm Hg, introducing nitrogen into the resulting evacuated chamber in controlled amounts and vaporizing the niobium and germanium to deposit a film of Nb.sub.3 Ge on the heated substrate.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: April 24, 1979
    Assignee: General Electric Company
    Inventor: Raymond A. Sigsbee
  • Method for making diarylhalonium salts
    Patent number: 4151175
    Abstract: A method is provided for making certain diaryliodonium salt photoinitiators, based on the initial formation of a diaryliodonium bisulfate. Methylene chloride is substituted for acetic acid during the reaction between potassium iodate and benzene in the presence of acetic anhydride and sulfuric acid. The diaryliodonium bisulfate is then reacted with a counterion source, such as a metal salt, to produce the desired diaryliodonium salt which can be used as a photoinitiator. The iodonium salt photoinitiators made by the method of the present invention can be used to make UV curable compositions.
    Type: Grant
    Filed: December 9, 1976
    Date of Patent: April 24, 1979
    Assignee: General Electric Company
    Inventors: James V. Crivello, Julia H. W. Lam
  • Method of photopolymerizing polymerizable compositions containing group Va onium salts
    Patent number: 4150988
    Abstract: Cationic polymerization of a variety of organic materials such as vinyl monomers, prepolymers, cyclic ethers, cyclic esters, cyclic amines, cyclic sulfides and organosilicon cyclics can be achieved by the use of certain radiation sensitive aromatic onium salts of Group Va elements. In addition, polymerizable compositions are provided which can be used as coating compounds, molding resins, adhesives, etc.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: April 24, 1979
    Assignee: General Electric Company
    Inventor: James V. Crivello
  • Nb.sub.3 Ge Superconductive films
    Patent number: 4151329
    Abstract: A superconductive film of Nb.sub.3 Ge is produced by providing within a vacuum chamber a heated substrate and sources of niobium and germanium, reducing the pressure within the chamber to a residual pressure no greater than about 10.sup.-5 mm Hg, introducing oxygen into the resulting evacuated chamber in controlled amounts and vaporizing the niobium and germanium to deposit a film of Nb.sub.3 Ge on the heated substrate.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: April 24, 1979
    Assignee: General Electric Company
    Inventor: Raymond A. Sigsbee