Patents by Inventor Mark S. Connolly

Mark S. Connolly 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).

  • Optically anisotropic melt forming aromatic copolyesters based on t-butyl-4-hydroxybenzoic acid
    Patent number: 4746566
    Abstract: Novel copolyesters derived from (a) aromatic diols, (b) dicarboxylic acids and (c) aromatic hydroxycarboxylic acids, in which the aromatic hydroxycarboxylic acid component (c) comprises 20 to 60 mole % of the copolyester and in which t-butyl-4-hydroxybenzoic acid constitutes 25 to 100 mole % of the aromatic hydroxycarboxylic acid component (c), are disclosed. These copolyesters are anisotropic and fabricable in the melt. They generally can be processed using conventional thermoplastic shaping techniques at temperatures below 350.degree. C. into moldings, fibres and films which have outstanding mechanical properties.
    Type: Grant
    Filed: May 6, 1987
    Date of Patent: May 24, 1988
    Assignee: E. I. DuPont de Nemours and Company
    Inventor: Mark S. Connolly
  • Optically anisotropic melt forming aromatic copolyesters based on t-butylhydroquinone
    Patent number: 4664972
    Abstract: Novel copolyesters derived from (a) aromatic diols, (b) dicarboxylic acids and (c) aromatic hydroxy carboxylic acids, in which t-butylhydroquinone constitutes 55 to 95 mole % of the diol component (a) are disclosed. These copolyesters are anisotropic and fabricable in the melt. They generally can be processed using conventional thermoplastic shaping techniques at temperatures below 350.degree. C. into moldings, fibers and films which have outstanding mechanical properties.
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: May 12, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mark S. Connolly