| Patent Number |
Title Of Patent |
Date Issued |
| 6297298 |
Phthalonitrile prepolymerization composition |
October 2, 2001 |
| A polymerizable composition suitable for storage prior to polymerization is made by mixing a phthalonitrile monomer and a curing agent under non-reactive conditions below the melting temperatures of the phthalonitrile monomer and the curing agent and in the absence of a solvent to cr |
| 6001926 |
Fiber-reinforced phthalonitrile composite cured with low-reactivity aromatic amine curing agent |
December 14, 1999 |
| A fiber-reinforced phthalonitrile composite is made by impregnating or coating a fibrous material with a phthalonitrile prepolymer mixture containing a phthalonitrile monomer and an aromatic amine curing agent that is thermally stable and nonvolatile at a temperature up to about 375. |
| 5965268 |
Carbon-based composites derived from phthalonitrile resins |
October 12, 1999 |
| A carbon-based composite is made by the steps of(1) impregnating a fibrous material with a phthalonitrile thermoset polymer precursor,(2) curing the product of step (1) to form a fiber-reinforced thermoset polymer and(3) pyrolyzing the product of step (2) to form the carbon-based composite. |
| 5925475 |
Phthalonitrile thermoset polymers and composites cured with halogen-containing aromatic amine cu |
July 20, 1999 |
| Phthalonitrile thermoset polymers and composites having flame resistance formed by combining a phthalonitrile monomer in the melt stage with a halogen-containing aromatic amine curing agent. The halogen-containing aromatic amine curing agent is selected from the group consisting of |
| 5895726 |
Lightweight high damping porous metal/phthalonitrile composites |
April 20, 1999 |
| Metal foams are impregnated with a phthalonitrile prepolymer. The metal f/polymer composite formed upon curing has excellent acoustic damping, structural properties, oxidative stability, and flame resistance. Foams of various metals, such as aluminum, titanium, nickel, copper, iron, zin |
