Patents by Inventor Glenn Dale Cooper

Glenn Dale Cooper 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).

  • Intrinsic viscosity control of polyphenylene ether reaction mixtures
    Patent number: 4116939
    Abstract: Polyphenylene ethers produced by an oxidative coupling of a phenol in the presence of an oxygen-containing gas and a metal-amine complex catalyst are freed of catalyst and stabilized against molecular weight loss. Removal of the metal component and molecular weight loss control are effected by contacting the reaction mixture with an aromatic amine plus a metal chelating agent, which stabilizes the intrinsic viscosity of the polyphenylene ether in the reaction mixture. This procedure results in lower catalyst usage and shorter reaction time.
    Type: Grant
    Filed: December 20, 1976
    Date of Patent: September 26, 1978
    Assignee: General Electric Company
    Inventors: Glenn Dale Cooper, Daniel Edwin Floryan
  • High impact polyphenylene ether resin compositions containing mineral oil
    Patent number: 4102850
    Abstract: Novel compositions are disclosed which include a polyphenylene ether resin and a small-particle EPDM rubber modified alkenyl aromatic resin containing a small amount of mineral oil. Also included within the scope of this invention are reinforced and flame-retardant compositions of said polyphenylene ether resin and said alkenyl aromatic resin modified with an EPDM rubber.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: July 25, 1978
    Assignee: General Electric Company
    Inventors: Glenn Dale Cooper, Arthur Katchman
  • High impact compositions of a polyphenylene ether resin and alkenyl aromatic resins modified with EPDM rubber
    Patent number: 4101504
    Abstract: Novel compositions are disclosed which include a polyphenylene ether resin and a small-particle EPDM-rubber modified alkenyl aromatic resin having an EPDM rubber content of at least 8% by weight. Also included within the scope of this invention are reinforced and flame-retardant compositions of said polyphenylene ether resin and said alkenyl aromatic resin modified with an EPDM rubber.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: July 18, 1978
    Assignee: General Electric Company
    Inventors: Glenn Dale Cooper, Arthur Katchman
  • Compositions of a polyphenylene ether resin and EPDM rubber-modified alkenyl aromatic resins having specified gel content
    Patent number: 4101505
    Abstract: Novel compositions are disclosed which include a polyphenylene ether resin and an alkenyl aromatic resin modified with a small-particle EPDM rubber, the modified resin comprising at least about 2% by weight of toluene-insoluble gel. Also included within the scope of this invention are reinforced and flame-retardant compositions of said polyphenylene ether resin and said EPDM rubber-modified alkenyl aromatic resin.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: July 18, 1978
    Assignee: General Electric Company
    Inventors: Glenn Dale Cooper, Arthur Katchman
  • Compositions of a polyphenylene ether resin and high molecular weight alkenyl aromatic resins modified with EPDM rubber
    Patent number: 4101503
    Abstract: Novel compositions are disclosed which include a polyphenylene ether resin and a small-particle EPDM rubber-modified alkenyl aromatic resin characterized by a high molecular weight. Also included within the scope of this invention are reinforced and flame-retardant compositions of said polyphenylene ether resin and said alkenyl aromatic resin modified with an EPDM rubber.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: July 18, 1978
    Assignee: General Electric Company
    Inventors: Glenn Dale Cooper, Arthur Katchman
  • Method for preparing polyphenylene ethers
    Patent number: 4092294
    Abstract: A novel process is disclosed for the preparation of polyphenylene ethers by an oxidative coupling reaction. The process comprises oxidatively coupling a phenolic compound in the presence of a catalyst which comprises a copper complex of a copper compound with an N,N.sup.1 -disubstituted alkylene or cycloalkylene diamine having from 2 to 3 carbon atoms between the nitrogen atoms and whose substituents on the two nitrogens atoms are isopropyl or alpha tertiary alkyl, a tertiary amine, a secondary mono-amine and a bromine containing compound.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: May 30, 1978
    Assignee: General Electric Company
    Inventors: James Gordy Bennett, Jr., Glenn Dale Cooper
  • Process for recovery of catalyst from polymerization of polyphenylene ethers
    Patent number: 4071500
    Abstract: A process for the recovery of copper catalyst from the polymerization of polyphenylene ethers comprises forming a complex of the catalyst and an amino acid chelating agent, separating the complex from the polymerization mixture, contacting the complex with a reducing sugar in an alkaline medium to precipitate the copper as an oxide and, optionally, acidifying the alkaline medium to precipitate and recover the amino acid chelating agent.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: January 31, 1978
    Assignee: General Electric Company
    Inventors: Glenn Dale Cooper, Daniel Edwin Floryan
  • Method for the control of diamine catalyzed polyphenylene ether polymerization
    Patent number: 4059568
    Abstract: A process is disclosed for the oxidative coupling of a 2,6-di-substituted phenolic monomer with a complex copper-diamine catalyst which is moderated by the addition of a small amount of water.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: November 22, 1977
    Assignee: General Electric Company
    Inventor: Glenn Dale Cooper
  • Process for the preparation of vinyl aromatic-modified polyphenylene ethers
    Patent number: 4057599
    Abstract: A complex of polyphenylene ether resin and methylene chloride obtained by polymerizing a phenol in methylene chloride and then cooling the mixture to cause the complex to precipitate, is mixed with a vinyl aromatic compound, e.g., styrene monomer, heated to decompose the complex and remove methylene chloride from the blend, and thereafter the vinyl aromatic compound is polymerized. The products are useful as molding resins and the like.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: November 8, 1977
    Assignee: General Electric Company
    Inventors: Glenn Dale Cooper, Irwin Schraga
  • Method for preparing polyphenylene ethers
    Patent number: 4042564
    Abstract: A novel process for the preparation of polyphenylene ethers is disclosed that is based on the addition of a polyethoxylated quaternary ammonium salt to the reaction mixture.
    Type: Grant
    Filed: November 11, 1975
    Date of Patent: August 16, 1977
    Assignee: General Electric Company
    Inventors: James Gordy Bennett, Jr., Glenn Dale Cooper
  • Removal of catalyst from polyphenylene oxide reaction mixtures with nitrogenous salts of nitrilotriacetic acid
    Patent number: 4039510
    Abstract: A novel process is disclosed for the removal of catalyst residues from organic solutions of polyphenylene oxides. The process comprises adding a nitrogenous salt of nitrilotriacetic acid to a polyphenylene oxide reaction mixture and thereafter adding an antisolvent for polyphenylene oxide to the mixture to cause the polyphenylene oxide to precipitate.
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: August 2, 1977
    Assignee: General Electric Company
    Inventors: Glenn Dale Cooper, Daniel Edwin Floryan
  • Improved polyphenylene ether polymerization process using methylene chloride as solvent
    Patent number: 4035357
    Abstract: A novel process is disclosed for the polymerization of phenols, e.g., xylenols, and recovery of polyphenylene ethers from the polymerization mixture. The method is based on the use of hot methylene chloride as a reaction solvent, elevated oxygen pressure and separation of the polyphenylene ether as a solid complex with methylene chloride upon cooling. Also a feature is the recycle and recovery of methylene chloride.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: July 12, 1977
    Assignee: General Electric Company
    Inventors: Glenn Dale Cooper, Irwin Schraga
  • Method of separating a copper-amine catalyst from a polyphenylene ether reaction mixture
    Patent number: 4024107
    Abstract: A novel method of separating a copper-amine catalyst from a polyphenylene ether reaction mixture is disclosed which is based on the use of 2,2'-dipyridyl to form an insoluble complex which may be readily separated from the reaction mixture.
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: May 17, 1977
    Assignee: General Electric Company
    Inventors: James Gordy Bennett, Jr., Glenn Dale Cooper
  • Catalyst removal from polyphenylene ether reaction solutions by aqueous extraction with ammonium salts
    Patent number: 3984374
    Abstract: A novel process for the separation of catalyst residues from polyphenylene ether reaction systems is disclosed. The process is based on the discovery that an aqueous solution of an ammonium salt will extract copper from a reaction solution of a polyphenylene ether resin and a complex copper-amine catalyst.
    Type: Grant
    Filed: April 1, 1975
    Date of Patent: October 5, 1976
    Assignee: General Electric Company
    Inventors: Glenn Dale Cooper, Daniel Edwin Floryan