Chinh T Do from Westminster, CA, age 53

Sol-Gel Process Utilizing Reduced Mixing Temperatures
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US Patent:

7026362, Apr 11, 2006
Filed:

Oct 9, 2001
Appl. No.:

09/974725
Inventors:

Shiho Wang - Lake Forest CA, US
Yasar Halefoglu - Aliso Viejo CA, US
Chih-hsing Cheng - Fullerton CA, US
Dengfeng Xu - Irvine CA, US
David Kwong Nung Chan - Fountain Valley CA, US
Meng-ying Chen - Taipei, TW
Chinh Do - Westminster CA, US
Assignee:

Simax Technologies, Inc. - Irvine CA
International Classification:

C01B 33/152
C03C 3/00
US Classification:

516111, 516 98, 65 172, 65395, 501 12, 423338, 4283126
Abstract:

A method of forming a gel monolith includes preparing a first solution comprising metal alkoxide and preparing a second solution comprising a catalyst. A third solution is prepared by mixing the first solution and the second solution together. At least one of the first, second, and third solutions is cooled to achieve a mixture temperature for the third solution which is substantially below room temperature, wherein the third solution has a significantly longer gelation time at the mixture temperature as compared to a room temperature gelation time for the third solution. The method further includes allowing the third solution to gel, thereby forming the gel monolith.

Doped Sol-Gel Materials And Method Of Manufacture Utilizing Reduced Mixing Temperatures
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US Patent:

7125912, Oct 24, 2006
Filed:

Aug 7, 2002
Appl. No.:

10/215353
Inventors:

Shiho Wang - Lake Forest CA, US
Yasar Halefoglu - Aliso Viejo CA, US
Chih-hsing Cheng - Fullerton CA, US
Dengfeng Xu - Irvine CA, US
David Kwong Nung Chan - Fountain Valley CA, US
Meng-ying Chen - Taipei, TW
Chinh Do - Westminster CA, US
Assignee:

Simax Technologies, Inc. - Irvine CA
International Classification:

C01B 33/158
C03C 3/00
US Classification:

516111, 516 98, 65395, 65 172, 501 12, 423338, 4283126
Abstract:

A method of preparing a solution for forming a doped gel monolith includes providing a first substance including a metal alkoxide. The method further includes providing a second substance including a catalyst. The method further includes providing a chemical including a dopant. The method further includes forming a solution including the dopant, said forming including mixing the first substance and the second substance together. The method further includes cooling the solution to a mixture temperature which is at or below zero degrees Celsius, wherein the solution has a significantly longer gelation time at the mixture temperature than at room temperature.

Sol-Gel Process Utilizing Reduced Mixing Temperatures
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US Patent:

20030068266, Apr 10, 2003
Filed:

Apr 5, 2002
Appl. No.:

10/117921
Inventors:

Shiho Wang - Lake Forest CA, US
Yasar Halefoglu - Aliso Viejo CA, US
Chih-hsing Cheng - Fullerton CA, US
Dengfeng Xu - Irvine CA, US
David Nung Chan - Fountain Valley CA, US
Meng-ying Chen - Taipei, TW
Chinh Do - Westminster CA, US
International Classification:

C01B033/12
US Classification:

423/338000
Abstract:

A method of manufacturing a xerogel monolith having a pore diameter distribution includes preparing a first solution comprising metal alkoxide and preparing a second solution comprising a catalyst. A third solution is prepared by mixing the first solution and the second solution together. At least one of the first, second, and third solutions is cooled to achieve a mixture temperature for the third solution which is substantially below room temperature, wherein the third solution has a significantly longer gelation time at the mixture temperature as compared to a room temperature gelation time for the third solution. The method further includes allowing the third solution to gel, thereby forming a wet gel monolith. The method further includes forming the xerogel monolith by drying the wet gel monolith.

Sol-Gel Process Utilizing Reduced Mixing Temperatures
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US Patent:

20060083914, Apr 20, 2006
Filed:

Apr 26, 2005
Appl. No.:

11/115071
Inventors:

Shiho Wang - Lake Forest CA, US
Yasar Halefoglu - Aliso Viejo CA, US
Chih-hsing Cheng - Fullerton CA, US
Dengfeng Xu - Irvine CA, US
David Chan - Fountain Valley CA, US
Meng-ying Chen - Taipei, TW
Chinh Do - Westminster CA, US
International Classification:

B32B 3/26
C08G 77/06
C08L 83/00
US Classification:

428312600, 528012000
Abstract:

A method of manufacturing a xerogel monolith having a pore diameter distribution includes preparing a first solution comprising metal alkoxide and preparing a second solution comprising a catalyst. A third solution is prepared by mixing the first solution and the second solution together. At least one of the first, second, and third solutions is cooled to achieve a mixture temperature for the third solution which is substantially below room temperature, wherein the third solution has a significantly longer gelation time at the mixture temperature as compared to a room temperature gelation time for the third solution. The method further includes allowing the third solution to gel, thereby forming a wet gel monolith. The method further includes forming the xerogel monolith by drying the wet gel monolith.