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Yu-Tsai Chen
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Glen Ellyn, IL, US
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last 30 patents
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Patent Grant
Method for improving the processabilty of polyphthalamides
Patent number
5,643,995
Issue date
Jul 1, 1997
Amoco Corporation
M. Jamal El-Hibri
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyamide-polyarlene sulfide blends
Patent number
5,635,558
Issue date
Jun 3, 1997
Amoco Corporation
Yu-Tsai Chen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Filled molding composition comprising polyamide having terephthalam...
Patent number
5,288,793
Issue date
Feb 22, 1994
Amoco Corporation
Yu-Tsai Chen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Crystallizable copolyamide having terephthalamide and naphthalamide...
Patent number
5,286,839
Issue date
Feb 15, 1994
Amoco Corporation
Yu-Tsai Chen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Crystalline polyamide composition from dicarboxylic acid mixture an...
Patent number
RE34447
Issue date
Nov 16, 1993
Amoco Corporation
Wassily Poppe
524 - Synthetic resins or natural rubbers
Information
Patent Grant
Composition comprising crystallizable polyamide from terephthalic a...
Patent number
5,194,577
Issue date
Mar 16, 1993
Amoco Corporation
Yu-Tsai Chen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Filled composition comprising crystalline copolyamide from terephth...
Patent number
4,863,991
Issue date
Sep 5, 1989
Amoco Corporation
Wassily Poppe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Crystalline copolyamide from terephthalic acid, isophthalic acid an...
Patent number
4,617,342
Issue date
Oct 14, 1986
Amoco Corporation
Wassily Poppe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Crystalline polyamide composition from dicarboxylic acid mixture an...
Patent number
4,603,166
Issue date
Jul 29, 1986
Amoco Corporation
Wassily Poppe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Crystalline copolyamides from terephthalic acid and hexamethylenedi...
Patent number
4,495,328
Issue date
Jan 22, 1985
Standard Oil Company (Indiana)
Wassily Poppe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyamide compositions from mixtures of trimethylhexamethylene diam...
Patent number
4,476,280
Issue date
Oct 9, 1984
Standard Oil Company
Wassily Poppe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Injection molding of amic acid and amide-imide polymers and molding...
Patent number
4,224,214
Issue date
Sep 23, 1980
Standard Oil Company (Indiana)
Yu-Tsai Chen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for heat treating shaped articles of amide-imide or amic aci...
Patent number
4,167,620
Issue date
Sep 11, 1979
Standard Oil Company (Indiana)
Yu-Tsai Chen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...