Patents Represented by Attorney Royal E. Bright

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  • Cured polysulfide polymers suitable for hot melt applications
    Patent number: 4192941
    Abstract: Inclusion of an effective amount of substantially anhydrous acetic acid in a zinc oxide cured liquid polysulfide polymer based composition results in a cured composition which is suitable for extrusion under heat and pressure and which on cooling reverts to a rubbery solid with essentially unchanged physical properties. The compositions are useful for the manufacture of sealants and extrudible goods such as hoses.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: March 11, 1980
    Assignee: Thiokol Corporation
    Inventor: Eugene R. Bertozzi
  • Thermoplastic elastic polysulfide polymers
    Patent number: 4190625
    Abstract: Polysulfide rubber formulations that become fluid at elevated temperatures but regain the rubbery state upon cooling are disclosed. The products possess a lower permanent set at room temperature and process more easily, particularly in extrusion processes, at elevated temperatures.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: February 26, 1980
    Assignee: Thiokol Corporation
    Inventor: Stuart M. Ellerstein
  • Elemental sulfur having improved impact resistance
    Patent number: 4184890
    Abstract: Polysulfide-polyether and polysulfide-polyformal polymers having terminals inert to oxidative curing dissolve rapidly in molten elemental sulfur resulting in improved impact strength for the cooled solidified product.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: January 22, 1980
    Assignee: Thiokol Corporation
    Inventor: Eugene R. Bertozzi
  • Control of cure rate of polyurethane resins
    Patent number: 4184031
    Abstract: Curing catalysts comprising organo metallic compounds, and carboxylic acids or compounds convertible thereto, processes for their use and compositions containing them are disclosed. The compositions enable the control of the curing rate profile of hydroxy terminated polybutadiene based urethane propellant binders, and the cure rate profile of polyurethane resin systems generally.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: January 15, 1980
    Assignee: Thiokol Corporation
    Inventors: William H. Graham, Inella G. Shepard
  • Liquid alkylacrylamides and related compositions
    Patent number: 4182790
    Abstract: Novel C6 to C18 liquid, branched-chain, N-.alpha.-alkylacrylamides, their use as reactive diluents and dye and pigment dispersants for radiation curable compositions, and radiation curable compositions containing them are disclosed.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: January 8, 1980
    Assignee: Thiokol Corporation
    Inventor: Claude J. Schmidle
  • Polyether based urethanes with superior dynamic properties
    Patent number: 4182825
    Abstract: Hydroxy terminated polyethers are capped with toluene diisocyanate, and the amount of unreacted toluene diisocyanate substantially reduced. When cured with 4,4'-methylene-bis-(2-chloroaniline), the cured products have superior dynamic properties to the corresponding toluene diisocyanate capped polyethers with usual unreacted toluene diisocyanate content. The cured products are useful in fabricating industrial tires.
    Type: Grant
    Filed: October 11, 1978
    Date of Patent: January 8, 1980
    Assignee: Thiokol Corporation
    Inventor: William A. Jackle
  • Photocurable compositions
    Patent number: 4182848
    Abstract: Novel photocurable compositions employing the addition of thiols to polymers having terminal vinyl-acetal functions, products prepared therefrom, and process for preparation thereof are disclosed. The cured products are films useful in coating floor tile, fabrics, and wooden articles.
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: January 8, 1980
    Assignee: Thiokol Corporation
    Inventors: Claude J. Schmidle, Robert Barclay, Jr.
  • Hydroxy terminated polybutadiene based polyurethane bound propellant grains
    Patent number: 4165421
    Abstract: Salicylate esters have been found to be suitable blocking agents for polyisocyanates, enabling preparation of hydroxy terminated polybutadiene based polyurethane bound propellant grains having extended pot life. Unblocking occurs readily at normal propellant cure temperatures, allowing normal cure rates.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: August 21, 1979
    Assignee: Thiokol Corporation
    Inventors: William H. Graham, Inella G. Shepard
  • Zinc oxide cured polysulfide polymers containing levulinic acid suitable for hot melt application
    Patent number: 4165426
    Abstract: Incorporation of levulinic acid into zinc oxide cured systems based on thiol terminated polysulfide polymers results in cured rubbers capable of extrusion under heat and pressure. The products are useful in sealants and in fabrication of solvent resistant hoses and other extruded articles.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: August 21, 1979
    Assignee: Thiokol Corporation
    Inventor: Henry N. Paul, III
  • Alkyl tin oxide cured polysulfide rubbers in hot melt applications
    Patent number: 4165425
    Abstract: The use of polysulfide rubbers cured with dilower alkyl tin oxides in hot applied processes and articles formed thereby are disclosed. The compositions are useful as hot applied sealants and in the extrusion of hoses and similar rubber articles.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: August 21, 1979
    Assignee: Thiokol Corporation
    Inventor: Eugene R. Bertozzi
  • Photocurable compositions comprising a polythiol and a polyene derived from a vinyl acetal
    Patent number: 4157421
    Abstract: Novel photocurable compositions employing the addition of thiols to polymers having terminal vinyl-acetal functions, products prepared therefrom, and process for preparation thereof are disclosed. The cured products are films useful in coating floor tile, fabrics, and wooden articles.
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: June 5, 1979
    Assignee: Thiokol Corporation
    Inventors: Claude J. Schmidle, Robert Barclay, Jr.
  • Asbestos free friction compositions
    Patent number: 4137214
    Abstract: Friction compositions containing major proportions of non-fibrous inorganic compounds in place of asbestos are disclosed. The compositions are particularly useful in the preparation of automotive disc brake pads.
    Type: Grant
    Filed: November 9, 1977
    Date of Patent: January 30, 1979
    Assignee: Thiokol Corporation
    Inventor: Henry A. Sochalski
  • Process for separation of nitroglycerin from mixtures with diethylene glycol
    Patent number: 4137255
    Abstract: A process for the separation of nitroglycerin from mixtures of nitroglycerin and diethylene glycol diluent which avoids the presence of undiluted nitroglycerin is disclosed. The process avoids the hazards inherent in handling undiluted nitroglycerin.
    Type: Grant
    Filed: January 19, 1978
    Date of Patent: January 30, 1979
    Assignee: Thiokol Corporation
    Inventors: David W. Endicott, Jr., Charles L. Denton, Michael L. Levinthal
  • Polyurethane curing agents
    Patent number: 4136092
    Abstract: Isocyanate-terminated prepolymers can be cured with di- and triamino-s-triazines of formula ##STR1## where R is ##STR2## --S--R.sub.5 ; --O--R.sub.6 or ##STR3## where at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is hydrogen; R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are hydrogen or an optionally substituted aromatic or aliphatic group andR' is the divalent residue of an organic diamine, the residue of an organic diisocyanate, or the residue of an organic diepoxide.
    Type: Grant
    Filed: May 11, 1976
    Date of Patent: January 23, 1979
    Assignee: Thiokol Corporation
    Inventors: William A. Jackle, Michael P. Mazzeo, Marina N. Gillis
  • Acrylic acid esters of polythiodialkanols and related compounds
    Patent number: 4131716
    Abstract: Diacrylate esters of dithiodiglycol and of polyether and polyformal oligomers thereof, their preparation, and use in combination with other radiation curable prepolymers for preparation of radiation curable compositions are disclosed.
    Type: Grant
    Filed: April 28, 1977
    Date of Patent: December 26, 1978
    Assignee: Thiokol Corporation
    Inventor: Eugene R. Bertozzi
  • Low smoke propellant
    Patent number: 4131499
    Abstract: Solid propellant compositions comprising a binder component based on hydroxy or carboxy containing perfluorocarbon polymers and nitramines, and which optionally contain as plasticizers fluorinated hydrocarbons, or perfluorinated esters, ethers, alkenes, or alkanes, having high specific impulse and low smoke exhaust are disclosed.
    Type: Grant
    Filed: June 8, 1977
    Date of Patent: December 26, 1978
    Assignee: Thiokol Corporation
    Inventor: David A. Flanigan
  • Acrylated dithiocarbamyl esters
    Patent number: 4125671
    Abstract: Acrylated dithiocarbamyl esters of Formula I ##STR1## wherein R is hydrogen, or alkyl of 1 to about 10 carbon atoms; R' is hydrogen, or methyl; x is an integer of from 2 to about 10; y is 0 or an integer of from 1 to 3; z is 1 or 2; and n is an integer of from 1 to about 10 are disclosed. The compounds are useful as reactive diluents or photocurable prepolymers.
    Type: Grant
    Filed: May 6, 1977
    Date of Patent: November 14, 1978
    Assignee: Thiokol Corporation
    Inventor: Joseph J. Magazzu
  • Process for producing halogen-terminated polysulfide polymers
    Patent number: 4124645
    Abstract: High molecular weight polysulfide polymers are produced by a novel process using polythiodiglycol, polymerizing it with an acid catalyst and with means for removing the water of reaction to make a medium molecular weight halogen-terminated polymer. The resultant halogen-terminated polymer may then be reacted with sodium polysulfide to form a latex dispersion of very high molecular weight. The dispersion may then be converted to --SH terminated polymers by the usual methods.
    Type: Grant
    Filed: September 28, 1977
    Date of Patent: November 7, 1978
    Assignee: Thiokol Corporation
    Inventor: Eugene R. Bertozzi
  • Tin salts of dimercaptoethyl formal, related compounds and PVC resins stabilized therewith
    Patent number: 4122065
    Abstract: Tin salts formed by the reaction between di-lower alkyl or diaryl tin oxides, and dimercaptoethyl formal and similar dimercapto compounds are disclosed. The final products are useful as ultraviolet light stabilizers for poly(vinyl chloride) resins and for the articles produced therefrom.
    Type: Grant
    Filed: December 23, 1977
    Date of Patent: October 24, 1978
    Assignee: Thiokol Corporation
    Inventor: Eugene R. Bertozzi
  • Control of cure rate of polyurethane resin based propellants
    Patent number: 4110135
    Abstract: Curing catalysts comprising organo metallic compounds, and carboxylic acids or compounds convertible thereto, processes for their use and compositions containing them are disclosed. The compositions enable the control of the curing rate profile of hydroxy terminated polybutadiene based urethane propellant binders, and the cure rate profile of polyurethane resin systems generally.
    Type: Grant
    Filed: November 11, 1976
    Date of Patent: August 29, 1978
    Assignee: Thiokol Corporation
    Inventors: William H. Graham, Inella G. Shepard