Patents Represented by Attorney George D. Morris

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  • Poly(allyl carbonate)-functional prepolymers prepared by treatment with molecular oxygen
    Patent number: 4742133
    Abstract: A liquid monomer composition comprising of at least one poly(allyl carbonate)-functional monomer is contacted with molecular oxygen to produce a liquid intermediate composition which is then heated to produce a polymerizable, liquid substantially gel-free composition which contains poly(allyl carbonate)-funtional prepolymer which has an allylic utilization of at least about 12 percent.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: May 3, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Felicia Y. Tang, Robert H. Tang
  • Internally colored polyol (allyl carbonate) polymerizates
    Patent number: 4666976
    Abstract: When a solution of liquid allylic-functional material and bromoxylenol blue is polymerized using a thermally decomposable polymerization initiator, the color imparted by the bromoxylenol blue is brilliant yellow.
    Type: Grant
    Filed: April 16, 1986
    Date of Patent: May 19, 1987
    Assignee: PPG Industries, Inc.
    Inventor: Michael S. Misura
  • Polymeric compositions containing polyhalophthalimidoalkyl-functional carbonates
    Patent number: 4666958
    Abstract: Polyhalophthalimidoalkyl-functional carbonates may be employed as fire retardant additives to polymers. Examples of such carbonates are 2-(tetrabromophthalimido)ethyl 2,4,6-tribromophenyl carbonate, 2-(tetrabromophthalimido)ethyl pentabromophenyl carbonate and bis[2-(tetrabromophthalimido)ethyl] carbonate.Polyhalophthalimidoalkyl haloformates, N-(hydroxyalkyl)-polyhalophthalimides, and 2-(hydroxyalkylcarbamyl)-polyhalobenzoic acids are useful as intermediates in the preparation of the carbonates.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: May 19, 1987
    Assignee: PPG Industries, Inc.
    Inventor: Nicodemus E. Boyer
  • Removal of molecular chlorine from 1,2-dichloroethane compositions contaminated with molecular chlorine
    Patent number: 4650916
    Abstract: Olefins containing at least 7 carbon atoms are used to remove molecular chlorine form compositions comprising 1,2-dichloroethane and a contaminating amount of molecular chlorine.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: March 17, 1987
    Assignee: PPG Industries, Inc.
    Inventor: Robert G. Briody
  • Process for concentrating and recovering chloral
    Patent number: 4628122
    Abstract: Chloral is removed from aqueous hydrochloric acid containing chloral in a stripping zone at superatmospheric pressure and concentrated in a rectifying zone at superatmospheric pressure. The method is particularly suited for the treatment of feed compositions originating from the oxychlorination of ethylene.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: December 9, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Frederick J. Kuntz, Henry W. Schussler
  • Alkylidene bromo-substituted arylene acetal and/or ketal polymers
    Patent number: 4622380
    Abstract: Alkylidene bromo-substituted arylene acetal and/or ketal polymers are useful for imparting fire resistance to compositions containing flammable polymers.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: November 11, 1986
    Assignee: PPG Industries, Inc.
    Inventor: Nicodemus E. Boyer
  • Composition of aromatic poly(allylcarbonate), styrene materials, and crosslinker containing three or more ethylenically unsaturated groups for producing polymer of high refractive index and low yellowness
    Patent number: 4622376
    Abstract: Pourable, polymerizable compositions comprising aromatic-containing poly(allyl carbonate)-functional material, styrenic material, and monomer having three or more allyl, methallyl, acrylyl and/or methacrylyl groups is free radically polymerized to produce polymerizates having high refractive index, high hardness, and low yellowness. The polymerizates are especially useful in the form of ophthalmic lenses.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: November 11, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Michael S. Misura, Richard A. Schwarz, Stephanie J. Oates
  • Method for preparing amino acid ester hydrohalides
    Patent number: 4622413
    Abstract: Amino acid ester hydrohalide is produced by reacting amino acid, alcohol, and halocarbonyl compound represented by the formula: ##STR1## in the presence of an excess of the alcohol and under substantially anhydrous conditions, wherein X.sub.1 and X.sub.2 are each independently fluoro, chloro, bromo, trichloromethoxy or tribromomethoxy.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: November 11, 1986
    Assignee: PPG Industries, Inc.
    Inventor: James A. Krogh
  • Surface-modified antimony oxide particles
    Patent number: 4616049
    Abstract: Fire retardant compositions comprising organic polymer, organic fire retardant compound and particles of antimony oxide surface-modified with poly(dialkylsiloxane) or condensation residue thereof, often exhibit enhanced physical properties as compared with similar compositions employing untreated antimony oxide particles.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: October 7, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Ralph B. Thompson, Kenneth J. Sienkowski
  • Polybromo tertiary amine
    Patent number: 4602111
    Abstract: N,N-Bis(polybromophenyl)organoamines are useful flame retardants which may be admixed with polymers to impart flame retardancy to the resulting compositions. Examples of such flame retardants include N,N-bis(2,4,6-tribromophenyl)methylamine, N,N-bis(2,4,6-tribromophenyl)ethylamine, N,N-bis(2,4,6-tribromophenyl)-allylamine, and N,N-bis(2,4,6-tribromophenyl)benzylamine.
    Type: Grant
    Filed: December 29, 1983
    Date of Patent: July 22, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Kenneth J. Sienkowski, Ralph B. Thompson
  • Method for producing selenoethers from selenoalcohols or their salts, and carbonates
    Patent number: 4601860
    Abstract: Organic selenoether is produced by reacting organic selenol or salt thereof with organic carbonate.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: July 22, 1986
    Assignee: PPG Industries, Inc.
    Inventor: James A. Krogh
  • Method for producing N-organocarbamates and N,N-bis(organo)carbamates
    Patent number: 4595533
    Abstract: Esters of carbamic acids containing at least one hydrogen atom attached to the carbamic nitrogen atom are reacted with organic carbonates to produce esters of carbamic acids having a greater degree of organic substitution on the carbamic nitrogen atom than the reactant esters. Preferably, the reactant esters are alkylated using dialkyl carbonates.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: June 17, 1986
    Assignee: PPG Industries, Inc.
    Inventor: Ralph B. Thompson
  • Method for producing vinyl chloride
    Patent number: 4590318
    Abstract: 1,2-Dichloroethane is pyrolyzed in a pyrolysis furnace to produce a stream comprising vinyl chloride and 1,2-dichloroethane. The stream is removed from the furnace and introduced to essentially unheated conduit means to establish a stream flowing in the conduit means. Pyrolysis promoter is introduced to the stream in the conduit means and sensible heat of the stream is utilized in the conduit means to pyrolyze further amounts of 1,2-dichloroethane and to increase the yield of vinyl chloride.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: May 20, 1986
    Assignee: PPG Industries, Inc.
    Inventor: David A. Longhini
  • Method for producing vinyl chloride
    Patent number: 4584420
    Abstract: Compound represented by the formula ##STR1## wherein each X is independently chloro or bromo is employed as a pyrolysis promoter in the pyrolysis of 1,2-dichloroethane to vinyl chloride.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: April 22, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Charles R. Wiedrich, John C. Crano
  • Internally colored polyol (allyl carbonate) polymerizates comprising inorganic molybdenum compounds
    Patent number: 4548984
    Abstract: When a solution of liquid allylic-functional material and dye comprising molybdenum dioxydichloride and molybdenum hexacarbonyl in combination is polymerized using a thermally decomposable polymerization initiator, the color imparted by the combination of the two molybdenum compounds remains essentially stable during the polymerization.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: October 22, 1985
    Assignee: PPG Industries, Inc.
    Inventor: Michael S. Misura
  • Polybromo dinaphthyl ethers
    Patent number: 4546139
    Abstract: Polybromo dinaphthyl ethers may be employed as fire retardant additives to polymers.
    Type: Grant
    Filed: June 17, 1983
    Date of Patent: October 8, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Paul G. Bay, Nicodemus E. Boyer, Kenneth J. Sienkowski
  • Polyhalophthalimidoalkyl-functional carbonates
    Patent number: 4515964
    Abstract: Polyhalophthalimidoalkyl-functional carbonates may be employed as fire retardant additives to polymers. Examples of such carbonates are 2-(tetrabromophthalimido)ethyl 2,4,6-tribromophenyl carbonate, 2-(tetrabromophthalimido)ethyl pentabromophenyl carbonate and bis[2-(tetrabromophthalimido)ethyl]carbonate.Polyhalophthalimidoalkyl haloformates, N-(hydroxyalkyl)-polyhalophthalimides, and 2-(hydroxyalkylcarbamyl)-polyhalobenzoic acids are useful as intermediates in the preparation of the carbonates.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: May 7, 1985
    Assignee: PPG Industries, Inc.
    Inventor: Nicodemus E. Boyer
  • Method for producing esters from highly hindered carboxylic acids or their salts, and carbonates
    Patent number: 4513146
    Abstract: Ester is produced by reacting highly hindered carboxylic acid or salt thereof represented by the formula ##STR1## wherein a. R.sub.3, R.sub.4, and R.sub.5 are each independently a monovalent organo group, andb. M is hydrogen, monovalent metal, or the monovalent fractional part of a polyvalent metal,with organic carbonate represented by the formula ##STR2## wherein R.sub.1 and R.sub.2 are each independently monovalent organic groups which may be the same or different, and wherein the alpha carbon of at least one of R.sub.1 and R.sub.2 is substantially sterically unhindered.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: April 23, 1985
    Assignee: PPG Industries, Inc.
    Inventor: Ralph B. Thompson
  • Method for preparing N-benzyloxycarbonyl amino acids containing additional functionality
    Patent number: 4500726
    Abstract: Poly(oxyalkylene) glycols and polymer-supported poly(oxyalkylene) alcohols are employed as phase-transfer reagents in blocking primary amino functionality of alkali metal salts of amino acids with a benzyloxycarbonyl group.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: February 19, 1985
    Assignee: PPG Industries, Inc.
    Inventor: James A. Krogh
  • Alkanediyl bromo-substituted arylenediyl carbonate polymers
    Patent number: 4489189
    Abstract: Carbonate polymer contains both divalent aromatic groups substituted by at least two bromo groups and at least one divalent aliphatic group. The presence of the divalent aliphatic group or groups reduces the melting range of the carbonate polymer. The carbonate polymer is fire resistant and may be admixed with flammable polymer to provide a composition having greater fire resistance than that of the flammable polymer.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: December 18, 1984
    Assignee: PPG Industries, Inc.
    Inventor: Nicodemus E. Boyer