Inventor
SHAFER SHELDON J
US23 patents
Patents
23 patentsUS5239106AAug 24, 1993
Method of recovering and purifying diphenylcarbonate from phenolic solutions thereof
GEN ELECTRIC78 citations96
US5428075AJun 27, 1995
Method for regenerating a sulfonated aromatic organic polymeric ion-exchange resin bed having deactivated aminoorganomercaptan groups with phenol
GEN ELECTRIC21 citations92
US5414151AMay 9, 1995
Method for making bisphenol
GEN ELECTRIC47 citations92
US4788249ANov 29, 1988
Thermoplastic resins and polyamides compatibilized with polyamide-polyester block copolymers
GEN ELECTRIC31 citations92
US4937130AJun 26, 1990
Polycarbonate container having internal layers of amorphous polyamide
GEN ELECTRIC45 citations90
US6486222B2Nov 26, 2002
Combination ion exchange resin bed for the synthesis of bisphenol A
GEN ELECTRIC19 citations87
US4567249AJan 28, 1986
Melt preparation of polyamide by amide ester interchange
GEN ELECTRIC20 citations82
US4788248ANov 29, 1988
Thermoplastic resins and polyamides compatibilized with polyamide-polyarylate block copolymers
GEN ELECTRIC11 citations74
US5312955AMay 17, 1994
Method for making aromatic organic carbonates
GEN ELECTRIC9 citations73
US4973746ANov 27, 1990
Process for converting pet scrap to diamine monomers
GEN ELECTRIC13 citations73
US4918149AApr 17, 1990
Polyphthalatecarbonate/polycarbonate resin blends
GEN ELECTRIC15 citations73
US4697034ASep 29, 1987
Process for making diaryl carbonates
GEN ELECTRIC8 citations66
US5340885AAug 23, 1994
Amide-ester copolymers and process for the preparation thereof
GEN ELECTRIC3 citations62
US5336814AAug 9, 1994
Method for recovering bis hydroxy aromatic organic values and bis aryl carbonate values from scrap aromatic polycarbonate
GEN ELECTRIC5 citations62
US5280088AJan 18, 1994
Thermoplastic blends of a polyamide having low amine end-group concentration and a polymer containing carbonate linkages
GEN ELECTRIC5 citations62
US5070177ADec 3, 1991
Ultraviolet radiation resistant polyphthalatecarbonate resin
GEN ELECTRIC3 citations62
US5019641AMay 28, 1991
Polyamide from 1,3 propylene diamine and isophthalic acid compound
GEN ELECTRIC3 citations62
US4876317AOct 24, 1989
Amide-urea copolymer and process for the preparation thereof
GEN ELECTRIC4 citations62
US4407996AOct 4, 1983
Stabilized polycarbonate compositions
GEN ELECTRIC6 citations62
US4362829ADec 7, 1982
Polycarbonates stabilized with sulfolane derivatives
GEN ELECTRIC5 citations62
US5516855AMay 14, 1996
Amide-ester copolymers and process for the preparation thereof
GEN ELECTRIC1 citations52
US5089600AFeb 18, 1992
Amide-urea copolymer and process for the preparation thereof
GEN ELECTRIC1 citations52
US4983718AJan 8, 1991
Color minimization during melt preparation of polyamides with hypophosphorus acid
GEN ELECTRIC1 citations51