Patents by Inventor Paul Winthrop Morgan

Paul Winthrop Morgan 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).

  • Fibers and anisotropic melts of polyazomethines
    Patent number: 4122070
    Abstract: High strength fibers and films are prepared from melt extrudable (co)polyazomethines.
    Type: Grant
    Filed: June 14, 1977
    Date of Patent: October 24, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Paul Winthrop Morgan
  • Anisotropic sulfuric acid dopes of polyamide hydrazides
    Patent number: 4070326
    Abstract: This invention relates to novel film- and fiber-forming optically anisotropic polyamide-hydrazide solutions (dopes) which are prepared in a solvent system comprising concentrated sulfuric acid or a mixture thereof with fluorosulfonic acid.
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: January 24, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Paul Winthrop Morgan
  • Polyazomethine fibers and films
    Patent number: 4048148
    Abstract: High strength fibers and films are prepared from melt extrudable (co)polyazomethines.
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: September 13, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Paul Winthrop Morgan
  • Polyhydrazide spinning solutions
    Patent number: 4039502
    Abstract: This invention relates to film- and fiber-forming polyhydrazide solutions (dopes) in a solvent system comprising concentrated sulfuric acid or mixtures thereof with fluorosulfonic acid. Some dopes of this invention are optically anisotropic.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: August 2, 1977
    Assignee: E. I. Du Pont de Nemours & Company
    Inventors: John David Hartzler, Paul Winthrop Morgan
  • Process for preparing film- and fiber-forming poly(1,4-benzamide)
    Patent number: 4025494
    Abstract: A novel process for the preparation of high molecular weight poly(1,4-benzamide) from a p-aminobenzoyl halide salt in selected reaction media and in the presence of a heterocyclic tertiary amine acid acceptor or ethyl diisopropylamine.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: May 24, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Paul Winthrop Morgan
  • Poly(1,4-benzamide) copolymers
    Patent number: 3991016
    Abstract: This invention relates to novel copolymers containing from about 80 to about 95 mol % of ##SPC1##Units in the polymer chain.
    Type: Grant
    Filed: July 30, 1974
    Date of Patent: November 9, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Paul Winthrop Morgan
  • Fiber and film-forming nuclearly-halogenated poly(1,4-benzamides)
    Patent number: 3943110
    Abstract: Fiber and film-forming nuclearly-halogenated poly(1,4-benzamides) are prepared by thermal polymerization of nuclearly-halogenated aminobenzoyl halides and their hydrochlorides. The polymers can be dissolved and shaped into useful fibers and films that have low flammability.
    Type: Grant
    Filed: May 28, 1974
    Date of Patent: March 9, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Paul Winthrop Morgan