Martha Sue Williams

US Patent:

7309738, Dec 18, 2007

Filed:

Oct 6, 2004

Appl. No.:

10/962827

Inventors:

Martha K. Williams - Titusville FL, US
Trent M. Smith - Palm Bay FL, US

Assignee:

United States of America as Represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

C08F 8/30
C08L 77/00

US Classification:

525179, 525178, 525191, 525192, 525181

Abstract:

The invention provides polymer blends containing polyhydroxyamide and one or more flammable polymers. The polymer blends are flame retardant and have improved durability and heat stability compared to the flammable polymer portion of the blends. Articles containing the polymer blends are also provided.

US Patent:

7781492, Aug 24, 2010

Filed:

Jun 7, 2007

Appl. No.:

11/759672

Inventors:

Martha K. Williams - Titusville FL, US
Trent M. Smith - Melbourne FL, US
James E. Fesmire - Titusville FL, US
Erik S. Weiser - Yorktown VA, US
Jared P. Sass - Rockledge FL, US

Assignee:

The United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

C08G 73/10
C08K 3/36

US Classification:

521183, 521184, 521185, 524492, 524493, 523218

Abstract:

The invention involves composite materials containing a polymer foam and an aerogel. The composite materials have improved thermal insulation ability, good acoustic insulation, and excellent physical mechanical properties. The composite materials can be used, for instance, for heat and acoustic insulation on aircraft, spacecraft, and maritime ships in place of currently used foam panels and other foam products. The materials of the invention can also be used in building construction with their combination of light weight, strength, elasticity, ability to be formed into desired shapes, and superior thermal and acoustic insulation power. The materials have also been found to have utility for storage of cryogens. A cryogenic liquid or gas, such as Nor H, adsorbs to the surfaces in aerogel particles. Thus, another embodiment of the invention provides a storage vessel for a cryogen.

US Patent:

7790787, Sep 7, 2010

Filed:

Apr 26, 2007

Appl. No.:

11/740357

Inventors:

Martha K. Williams - Titusville FL, US
Trent M. Smith - Melbourne FL, US
James E. Fesmire - Titusville FL, US
Luke B. Roberson - Titusville FL, US
LaNetra M. Clayton - Oviedo FL, US

Assignee:

The United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

C08L 97/02
C08L 1/02

US Classification:

524 13, 524 14, 524492, 524493

Abstract:

The invention provides new composite materials containing aerogels blended with thermoplastic polymer materials at a weight ratio of aerogel to thermoplastic polymer of less than 20:100. The composite materials have improved thermal insulation ability. The composite materials also have better flexibility and less brittleness at low temperatures than the parent thermoplastic polymer materials.

US Patent:

7968648, Jun 28, 2011

Filed:

Nov 5, 2007

Appl. No.:

11/935093

Inventors:

Martha K. Williams - Titusville FL, US
Trent M. Smith - Melbourne FL, US

Assignee:

The United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

C08F 8/30
C08L 77/00

US Classification:

525179, 525178, 525191, 525192, 525181

Abstract:

The invention provides polymer blends containing polyhydroxyamide and one or more flammable polymers. The polymer blends are flame retardant and have improved durability and heat stability compared to the flammable polymer portion of the blends. Articles containing the polymer blends are also provided.

US Patent:

7977411, Jul 12, 2011

Filed:

Jul 13, 2010

Appl. No.:

12/835233

Inventors:

Martha K. Williams - Titusville FL, US
Trent M. Smith - Melbourne FL, US
James E. Fesmire - Titusville FL, US
Erik S. Weiser - Yorktown VA, US
Jared P. Sass - Rockledge FL, US

Assignee:

The United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

C08J 9/32

US Classification:

523218, 62 451, 62 461, 62 463, 165136, 524492, 524493

Abstract:

The invention involves composite materials containing a polymer foam and an aerogel. The composite materials have improved thermal insulation ability, good acoustic insulation, and excellent physical mechanical properties. The composite materials can be used, for instance, for heat and acoustic insulation on aircraft, spacecraft, and maritime ships in place of currently used foam panels and other foam products. The materials of the invention can also be used in building construction with their combination of light weight, strength, elasticity, ability to be formed into desired shapes, and superior thermal and acoustic insulation power. The materials have also been found to have utility for storage of cryogens. A cryogenic liquid or gas, such as Nor H, adsorbs to the surfaces in aerogel particles. Thus, another embodiment of the invention provides a storage vessel for a cryogen.

US Patent:

8293178, Oct 23, 2012

Filed:

Nov 6, 2007

Appl. No.:

11/935545

Inventors:

Luke B. Roberson - Titusville FL, US
Janine E. Captain - Titusville FL, US
Martha K. Williams - Titusville FL, US
Trent M. Smith - Melbourne FL, US
LaNetra Clayton Tate - Oviedo FL, US

Assignee:

The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

G01N 21/76

US Classification:

422 94, 436144, 422402, 73 3101, 73 3105

Abstract:

A chemochromic sensor for detecting a combustible gas, such as hydrogen, includes a chemochromic pigment mechanically mixed with a polymer and formed into a rigid or pliable material. In a preferred embodiment, the chemochromic detector includes aerogel material. The detector is robust and easily modifiable for a variety of applications and environmental conditions, such as atmospheres of inert gas, hydrogen gas, or mixtures of gases, or in environments that have variable temperature, including high temperatures such as above 100 C. and low temperatures such as below −196 C.

US Patent:

8623253, Jan 7, 2014

Filed:

Feb 23, 2011

Appl. No.:

13/033085

Inventors:

Scott T. Jolley - Titusville FL, US
Tracy L. Gibson - Melbourne FL, US
Martha K. Williams - Titusville FL, US
Clyde F. Parrish - Trinity FL, US
Steven L. Parks - Rockledge FL, US

Assignee:

The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

B29C 35/02

US Classification:

264236, 264 3622, 264404, 264234, 264235

Abstract:

Provided are low-melt polyimides and poly(amic acids) (PAAs) for use in repair of electrical wire insulation, flat or ribbon wire harnesses, and flat surfaces comprised of high-performance polymers such as inflatables or solar panels applications. Also provided are methods and devices for repair of electrical insulation.

US Patent:

20080064833, Mar 13, 2008

Filed:

Nov 5, 2007

Appl. No.:

11/934945

Inventors:

Martha Williams - Titusville FL, US
Trent Smith - Melbourne FL, US

Assignee:

U.S.A. as Represented by the Administrator of the National Aeronautics & Space Administration - Washington DC

International Classification:

C08G 69/00

US Classification:

525535000, 525538000, 525540000

Abstract:

The invention provides polymer blends containing polyhydroxyamide and one or more flammable polymers. The polymer blends are flame retardant and have improved durability and heat stability compared to the flammable polymer portion of the blends. Articles containing the polymer blends are also provided.