Patrick A Ruth

US Patent:

7820285, Oct 26, 2010

Filed:

Feb 10, 2006

Appl. No.:

11/357465

Inventors:

Rusty L. Blanski - Lancaster CA, US
Joseph H. Koo - Austin TX, US
Patrick N. Ruth - Tehachapi CA, US
Shawn H. Phillips - Lancaster CA, US

Assignee:

The United States of America as represented by the Secretary of the Air Force - Washington DC

International Classification:

B32B 5/02

US Classification:

428324, 264497, 4251744, 425375

Abstract:

Provided is a solid rocket motor (SRM) insulation, wherein carbon nano fibers (CNF) are blended into a polyurethane matrix so as to disperse the CNF in the polymer. The so blended material is then extruded, injection molded or sprayed on or into the desired shape. Such SRM insulation has reduced ablation over prior art insulations, resulting in reduction in weight of the insulation needed in such rockets, permitting increase of payload therein.

US Patent:

7193015, Mar 20, 2007

Filed:

Mar 31, 2004

Appl. No.:

10/815544

Inventors:

Joseph M. Mabry - Lancaster CA, US
Rene I. Gonzalez - San Juan PR, US
Rusty L. Blanski - Lancaster CA, US
Patrick N. Ruth - Tehachapi CA, US
Brent D. Viers - Lancaster CA, US
Joseph J. Schwab - Huntington Beach CA, US
Joseph D. Lichtenhan - Petal MS, US

International Classification:

C08F 8/00

US Classification:

525101, 525104

Abstract:

A method of using nanostructured chemicals as alloying agents for the reinforcement of flouropolymer microstructures, including polymer coils, domains, chains, and segments, at the molecular level. Because of their tailorable compatibility with fluorinated polymers, nanostructured chemicals can be readily and selectively incorporated into polymers by direct blending processes. Properties most favorably improved are time dependent mechanical and thermal properties such as heat distortion, creep, compression set, shrinkage, modulus, hardness and abrasion resistance. In addition to mechanical properties, other physical properties are favorably improved, including lower thermal conductivity, fire resistance, and improved oxygen permeability. These improved properties may be useful in a number of applications, including space-survivable materials and creep resistant seals and gaskets. Improved surface properties may be useful for applications such as anti-icing or non-wetting surfaces or as low friction surfaces.