Patents by Inventor Frank J. Williams, III

Frank J. Williams, III 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).

  • Method for making bis-etherphthalimides
    Patent number: 4455431
    Abstract: A simplified method is provided for making aromatic bis-etherphthalimides by employing a polychlorinated C.sub.(1-3) alkane solution of nitro-N-organophthalimide directly with alkali metal bisphenoxide salt in a refluxing nonpolar organic solvent. After the polychlorinated C.sub.(1-3) alkane has completely distilled from the mixture, a phase transfer catalyst is added. As a result, the requirement for isolating and handling nitro-N-organophthalimide solids prior to condensation with alkali metal bisphenoxide salts is thereby eliminated.
    Type: Grant
    Filed: March 5, 1982
    Date of Patent: June 19, 1984
    Assignee: General Electric Company
    Inventors: Frank J. Williams, III, Brent A. Dellacoletta
  • Method for making alkali metal bisphenoxide salts and bisimides derived therefrom
    Patent number: 4302616
    Abstract: A method is provided for making alkali metal bis-phenoxide salts by refluxing a heterogenous mixture of a non-polar organic solvent and an aqueous solution of an alkali metal bisphenoxide. These bisphenoxide salts can be used thereafter to make aromatic bis(ether phthalimides) by reaction with nuclear ring substituted N-organo phthalimides.
    Type: Grant
    Filed: September 5, 1980
    Date of Patent: November 24, 1981
    Assignee: General Electric Company
    Inventors: Frank J. Williams, III, Brent A. Dellacoletta
  • Polyetherimides prepared by self-condensation of hydroxyaryl phthalimide salts
    Patent number: 4297474
    Abstract: Polyetherimides are provided which are based on the self-condensation in a dipolar aprotic solvent of a hydroxyaryl phthalimide salt having a nuclear bound leaving radical on the phthalimide ring. The polyetherimides are injection-moldable high performance thermoplastics.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: October 27, 1981
    Assignee: General Electric Company
    Inventors: Frank J. Williams, III, Howard M. Relles
  • Method for making aromatic ether imides
    Patent number: 4273712
    Abstract: A method for making aromatic ether imides is provided by effecting the displacement of reactive radicals on a phthalimide nucleus with a mono- or bis-alkali metal phenoxide in the presence of a nonpolar solvent and a phase transfer catalyst, such as a tetra-ammonia salt. The aromatic ether imides made by the present invention are useful intermediates for making aromatic ether anhydrides and aromatic bis(ether anhydrides).
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: June 16, 1981
    Assignee: General Electric Company
    Inventor: Frank J. Williams, III
  • Method for making aromatic polyformals
    Patent number: 4260733
    Abstract: A method is provided for making linear film forming aromatic polyformals having a reduced percent by weight of aromatic polyformals in the cyclic state. Reduced cyclic polyformal content in the linear aromatic polyformal is achieved by a filtration of the reaction product of a bisphenol and methylene halide in the presence of an alkali metal hydroxide, followed by the addition of an antisolvent to the reaction mixture to effect reverse precipitation.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: April 7, 1981
    Assignee: General Electric Company
    Inventors: George R. Loucks, Frank J. Williams, III
  • Method for making bisphenoxide salts and bisimides derived therefrom
    Patent number: 4257953
    Abstract: A method is provided for making alkali metal bisphenoxide salts by refluxing a heterogenous mixture of a non-polar organic solvent and an aqueous solution of an alkali metal bisphenoxide. These bisphenoxide salts can be used thereafter to make aromatic bis(ether phthalimides) by reaction with nuclear ring substituted N-organo phthalimides.
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: March 24, 1981
    Assignee: General Electric Company
    Inventors: Frank J. Williams, III, Brent A. Dellacoletta
  • Liquid extraction method for recovering aromatic bisimides
    Patent number: 4247464
    Abstract: A liquid extraction method is provided for recovering aromatic bisimides from an organic solvent aromatic bisimide reaction mixture having a variety of reaction by-products. An organic solvent solution of the bisimide reaction mixture is extracted with water and/or an aqueous alkali metal hydroxide to effect removal of such reaction by-products, and provide an organic solvent phase of the aromatic bisimide which can be obtained in substantially pure form upon removal of the organic solvent.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: January 27, 1981
    Assignee: General Electric Company
    Inventors: Howard M. Relles, Frank J. Williams, III
  • Method for making aromatic cyclic polyformals
    Patent number: 4136087
    Abstract: A method is provided for making aromatic cyclic polyformals by effecting reaction between a methylene halide and an anhydrous bisphenol dianion, followed by a precipitation and an extraction of the resulting aromatic polyformal reaction product. The aromatic cyclic polyformals can be used as plasticizers for organic polymers for making wire coating formulations.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: January 23, 1979
    Assignee: General Electric Company
    Inventors: Frank J. Williams, III, Paul E. Donahue
  • Polysulfoneimides
    Patent number: 4107147
    Abstract: Polysulfoneimides are provided and a method for making such materials. Aromatic bis(sulfoneanhydrides) are reacted with organic diamines to yield polymers which are useful in high temperature applications.
    Type: Grant
    Filed: September 2, 1977
    Date of Patent: August 15, 1978
    Assignee: General Electric Company
    Inventors: Frank J. Williams, III, Paul E. Donahue
  • Aromatic disulfone dianhydrides
    Patent number: 4102905
    Abstract: There are provided bis(sulfone) aromatic dianhydrides and methods for making these materials. These aromatic disulfone dianhydrides can be used to make polyimides and polyesters, and can be used as curing agents for epoxy resins.
    Type: Grant
    Filed: September 2, 1977
    Date of Patent: July 25, 1978
    Assignee: General Electric Company
    Inventors: Frank J. Williams, III, Paul E. Donahue
  • Polythioethermides
    Patent number: 4092297
    Abstract: Polythioetherimides are provided by either effecting reaction between aromatic bis(thioetheranhydride) and organic diamine or by nitro- or halo-displacement from appropriately substituted bis(phthalimide) with anhydrous alkai metal sulfide. The polythioetherimides are heat and flame resistant and can be reinforced with various fillers to produce high performance composites. The polythioetherimides also can be used as wire coating enamels when used in phenolic solvent.
    Type: Grant
    Filed: August 23, 1974
    Date of Patent: May 30, 1978
    Assignee: General Electric Company
    Inventor: Frank J. Williams, III
  • Method for making bis(thioether anhydride)s
    Patent number: 4054584
    Abstract: A method is provided for making bis(thioetherphthalic anhydride)s from bis(thioetherphthalimide)s. The latter compounds can be made by using an alkali metal sulfide with a nitro N-organo substituted phthalimide.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: October 18, 1977
    Assignee: General Electric Company
    Inventor: Frank J. Williams, III
  • Preparation of bisphenol-A bisimides
    Patent number: 4048190
    Abstract: A process for purifying a bisphenol-A bisimide which comprises treating the latter with a polar solvent selected from the class consisting of methanol, acetonitrile, acetone, and diethyl ether.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: September 13, 1977
    Assignee: General Electric Company
    Inventors: Donald S. Johnson, Frank J. Williams, III
  • Aromatic dithio dianhydrides
    Patent number: 4024162
    Abstract: There are provided bis(thioether) aromatic dianhydrides and method for making these materials. A bisthiol in the presence of base, or bisthiol basic salt, can be reacted with a nitro- or halo-substituted phthalic compound, such as an anhydride or anhydride precursor. These aromatic dithiodianhydrides can be used to make polyimides and polyesters, and can be used as curing agents for epoxy resins.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: May 17, 1977
    Assignee: General Electric Company
    Inventor: Frank J. Williams, III
  • Preparation of aromatic bisimides
    Patent number: 4017511
    Abstract: Aromatic bisimides can be prepared by effecting reaction between a 3- or 4-nitro-N-substituted phthalimide with an aromatic dihydroxy compound in the presence of a solid alkali-metal hydroxide and using a certain class of dipolar aprotic compounds, e.g., dimethyl formamide, as a solvent.
    Type: Grant
    Filed: March 24, 1976
    Date of Patent: April 12, 1977
    Assignee: General Electric Company
    Inventor: Frank J. Williams, III
  • Method for making polyetherimides using a sodium chloride or ferric sulfate catalyst
    Patent number: 3998840
    Abstract: A method is provided for enhancing the rate of formation of polyetherimides by using either a sodium chloride catalyst, or ferric sulfate catalyst in a mixture of an aromatic bis(ether anhydride) and an organic diamine under melt polymerization conditions.
    Type: Grant
    Filed: April 16, 1976
    Date of Patent: December 21, 1976
    Assignee: General Electric Company
    Inventors: Frank J. Williams, III, Howard J. Klopfer
  • Thio-bis(phthalimides)
    Patent number: 3989712
    Abstract: A method is provided for making bis(thioetherphthalic anhydride)s from bis(thioetherphthalimide)s. The latter compounds can be made by using an alkali metal sulfide with an N-substituted phthalimide having an alkali metal sulfide displaceable radical attached to the ring.
    Type: Grant
    Filed: March 30, 1973
    Date of Patent: November 2, 1976
    Assignee: General Electric Company
    Inventor: Frank J. Williams, III
  • Novel polyetherimides
    Patent number: 3983093
    Abstract: This invention is concerned with a new class of polyetherimides. More particularly, the invention is concerned with polyetherimides derived from the reaction of an organic diamine, a bisphenol dianhydride and a dianhydride selected from the class consisting of pyromellitic dianhydride, a sulfur dianhydride, and a benzophenone dianhydride. The polyetherimide compositions have improved solvent resistance which enhances their value in a wide variety of uses including films, molding compounds, coatings, etc.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: September 28, 1976
    Assignee: General Electric Company
    Inventors: Frank J. Williams, III, Paul E. Donahue
  • Aromatic dithio dianhydrides
    Patent number: 3933862
    Abstract: There are provided bis(thioether) aromatic dianhydrides and method for making these materials. A bisthiol in the presence of base, or bisthiol basic salt, can be reacted with a nitro- or halo-substituted phthalic compound, such as an anhydride or anhydride precursor. These aromatic dithiodianhydrides can be used to make polyimides and polyesters, and can be used as curing agents for epoxy resins.
    Type: Grant
    Filed: August 23, 1974
    Date of Patent: January 20, 1976
    Assignee: General Electric Company
    Inventor: Frank J. Williams, III
  • Polythioetherimides and method of preparation
    Patent number: 3933749
    Abstract: Polythioetherimides are provided and a method for making such materials. Aromatic bis(thioetheranhydride)s are reacted with organic diamine in the presence of organic solvent, or in the melt. The polythioetherimides are injection moldable thermoplastics which can be used to make high performance composites.
    Type: Grant
    Filed: August 23, 1974
    Date of Patent: January 20, 1976
    Assignee: General Electric Company
    Inventor: Frank J. Williams, III