Patents by Inventor John T. Jackman

John T. Jackman 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).

  • Ortho ester-substituted chlorotriazines as capping agents for polyphenylene ethers
    Patent number: 5142049
    Abstract: Ortho ester-substituted chlorotriazines are prepared by the reaction of a dichlorotriazine with a reactive compound containing an ortho ester group, preferably a 4-(2-methoxy-2-methyl-1,3-dioxolan-4-yl)methyl group. They are useful as capping agents for polyphenylene ethers. The capped polyphenylene ethers form copolymer-containing compositions with polyesters, polyamides and other polymers containing carboxylic acid or amine groups.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: August 25, 1992
    Assignee: General Electric Company
    Inventors: Farid F. Khouri, John T. Jackman, Otto Phanstiel, IV
  • Ortho ester-capped polyphenylene ethers and copolymers prepared therefrom
    Patent number: 5132373
    Abstract: Ortho ester-capped polyphenylene ethers are prepared by the reaction of a polyphenylene ether with a reactive compound containing an ortho ester group, preferably a 4-(2-methoxy-2-methyl-1,3-dioxolan-4-yl)methyl group. Chlorotriazines containing the ortho ester substituent are particularly preferred as capping agents. The capped polyphenylene ethers form copolymer-containing compositions with polyesters and other polymers containing carboxylic acid groups.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: July 21, 1992
    Assignee: General Electric Company
    Inventors: Farid F. Khouri, Otto Phanstiel, IV, Sterling B. Brown, John T. Jackman
  • Copolymers of amine-terminated polymers and ortho ester-capped polyphenylene ethers
    Patent number: 5115042
    Abstract: Ortho ester-capped polyphenylene ethers are prepared by the reaction of a polyphenylene ether with a reactive compound containing an ortho ester group, preferably a 4-(2-methoxy-2-methyl-1,3-dioxolan-4-yl)methyl group. Chlorotriazines containing the ortho ester substituent are particularly preferred as capping agents. The capped polyphenylene ethers form copolymer-containing compositions with polyamides and other polymers containing amine groups, particularly in the presence of a Lewis acid as catalyst.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: May 19, 1992
    Assignee: General Electric Company
    Inventors: Farid F. Khouri, Sterling B. Brown, John T. Jackman