Wenyan A Li from Merritt Island, FL, age 55

Coatings And Methods For Corrosion Detection And/Or Reduction
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US Patent:

20100242788, Sep 30, 2010
Filed:

Jun 2, 2010
Appl. No.:

12/792238
Inventors:

Luz M. Calle - Merritt Island FL, US
Wenyan Li - Orlando FL, US
Assignee:

Space Administration - Washington DC
International Classification:

C09D 5/08
US Classification:

106 1411, 106 1405
Abstract:

Coatings and methods are provided. An embodiment of the coating includes microcapsules that contain at least one of a corrosion inhibitor, a film-forming compound, and an indicator. The microcapsules are dispersed in a coating vehicle. A shell of each microcapsule breaks down in the presence of an alkaline condition, resulting from corrosion.

Hydrophobic-Core Microcapsules And Their Formation
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US Patent:

20100305234, Dec 2, 2010
Filed:

Aug 13, 2010
Appl. No.:

12/855791
Inventors:

Luz M. Calle - Merritt Island FL, US
Wenyan Li - Orlando FL, US
Jerry W. Buhrow - Viera FL, US
Scott T. Jolley - Titusville FL, US
Assignee:

Space Administration - Washington DC
International Classification:

C09D 5/08
US Classification:

523205
Abstract:

Hydrophobic-core microcapsules and methods of their formation are provided. A hydrophobic-core microcapsule may include a shell that encapsulates a hydrophobic substance with a core substance, such as dye, corrosion indicator, corrosion inhibitor, and/or healing agent, dissolved or dispersed therein. The hydrophobic-core microcapsules may be formed from an emulsion having hydrophobic-phase droplets, e.g., containing the core substance and shell-forming compound, dispersed in a hydrophilic phase. The shells of the microcapsules may be capable of being broken down in response to being contacted by an alkali, e.g., produced during corrosion, contacting the shell.

Hydrophilic-Core Microcapsules And Their Formation
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US Patent:

20100320421, Dec 23, 2010
Filed:

Aug 16, 2010
Appl. No.:

12/856849
Inventors:

Luz M. CALLE - Merritt Island FL, US
Wenyan LI - Orlando FL, US
Jerry W. BUHROW - Viera FL, US
Scott T. JOLLEY - Titusville FL, US
Assignee:

U.S.A. as Represented by the Administrator of the National Aeronautics and Spac Adr - Washington DC
International Classification:

C23F 11/00
C08L 67/00
US Classification:

252388, 524599
Abstract:

Hydrophilic-core microcapsules and methods of their formation are provided. A hydrophilic-core microcapsule may include a shell that encapsulates water with the core substance dissolved or dispersed therein. The hydrophilic-core microcapsules may be formed from an emulsion having hydrophilic-phase droplets dispersed in a hydrophobic phase, with shell-forming compound contained in the hydrophilic phase or the hydrophobic phase and the core substance contained in the hydrophilic phase. The shells of the microcapsules may be capable of being broken down in response to being contacted by an alkali, e.g., produced during corrosion, contacting the shell.

Elongated Microcapsules And Their Formation
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US Patent:

20120207921, Aug 16, 2012
Filed:

Jan 20, 2012
Appl. No.:

13/354576
Inventors:

Luz M. Calle - Merritt Island FL, US
Wenyan N. Li - Orlando FL, US
Jerry W. Buhrow - Melbourne FL, US
Stephen A. Perusich - Merritt Island FL, US
Scott T. Jolley - Titusville FL, US
Tracy L. Gibson - Melbourne FL, US
Martha K. Williams - Titusville FL, US
Assignee:

Space Administration - Washington DC
International Classification:

C09D 105/00
B01J 13/02
C08L 5/00
B05D 7/00
US Classification:

427140, 264 41, 524732, 524 55
Abstract:

Elongated microcapsules, such as elongated hydrophobic-core and hydrophilic-core microcapsules, may be formed by pulse stirring an emulsion or shearing an emulsion between two surfaces moving at different velocities. The elongated microcapsules may be dispersed in a coating formulation, such as paint.

Self-Healing Polymer Materials For Wire Insulation, Polyimides, Flat Surfaces, And Inflatable Structures
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US Patent:

20120321828, Dec 20, 2012
Filed:

Jun 14, 2012
Appl. No.:

13/523806
Inventors:

Scott T. Jolley - Titusville FL, US
Martha K. Williams - Titusville FL, US
Tracy L. Gibson - Melbourne FL, US
Trent M. Smith - Satellite Beach FL, US
Anne J. Caraccio - Cape Canaveral FL, US
Wenyan Li - Orlando FL, US
Assignee:

United States of America as Represented by the Administrator of the National Aeronautics and Spac - Washington DC
International Classification:

C08L 79/08
H01B 3/30
B32B 7/02
B32B 1/02
C08K 5/3415
C08G 18/32
US Classification:

428 366, 524104, 528 68, 528 38, 525418, 428220, 428212, 174110 SR
Abstract:

Materials based on low melt polyimide, polyurea, or polyurethane chemistry have been developed which exhibit self-healing properties. These high performance polymers can be utilized either by themselves or in combination with microcapsule technology to deliver self-healing properties to electrical wire insulation or in other high performance, thin wall technologies such as inflatable structures.

Ph-Sensitive Microparticles With Matrix-Dispersed Active Agent
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US Patent:

20130017612, Jan 17, 2013
Filed:

Jul 5, 2012
Appl. No.:

13/542155
Inventors:

Wenyan LI - Orlando FL, US
Jerry W. BUHROW - Viera FL, US
Scott T. JOLLEY - Titusville FL, US
Luz M. CALLE - Merritt Island FL, US
Assignee:

United States of America as Represented by the Administrator of the National Aeronautics and Spac - Washington DC
International Classification:

C09K 11/06
G01N 21/00
C09K 15/04
C09K 15/10
C09K 15/12
C09K 15/22
C09K 15/30
C09K 15/28
G01N 21/76
C09K 15/06
US Classification:

436 75, 25230135, 2524081, 252388, 252396, 252395, 252392, 252390, 252391
Abstract:

Methods to produce pH-sensitive microparticles that have an active agent dispersed in a polymer matrix have certain advantages over microcapsules with an active agent encapsulated in an interior compartment/core inside of a polymer wall. The current invention relates to pH-sensitive microparticles that have a corrosion-detecting or corrosion-inhibiting active agent or active agents dispersed within a polymer matrix of the microparticles. The pH-sensitive microparticles can be used in various coating compositions on metal objects for corrosion detecting and/or inhibiting.

Coatings And Methods For Corrosion Detection And/Or Reduction
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US Patent:

7790225, Sep 7, 2010
Filed:

Sep 19, 2005
Appl. No.:

11/239445
Inventors:

Luz M. Calle - Merritt Island FL, US
Wenyan Li - Orlando FL, US
Assignee:

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

B05D 7/00
B01J 13/02
B32B 25/00
B32B 27/00
B32B 27/02
C09D 151/00
C08K 9/00
A01N 25/00
C09K 3/14
C08L 95/00
C04B 14/00
US Classification:

427212, 427 8, 4272133, 42721334, 42721335, 42721336, 4284022, 42840221, 42840222, 42840224, 428403, 428407, 523205, 523201, 523200, 71 6411, 106 36, 106235, 106241, 106251, 106266, 106272, 106275, 106276, 106280, 1062811, 106400, 106600, 106789
Abstract:

Coatings and methods are provided. An embodiment of the coating includes microcapsules that contain at least one of a corrosion inhibitor, a film-forming compound, and an indicator. The microcapsules are dispersed in a coating vehicle. A shell of each microcapsule breaks down in the presence of an alkaline condition, resulting from corrosion.