Inventor
HEDGES CHARLES V
US43 patents
Patents
43 patentsUS4487896ADec 11, 1984
Copolyester-carbonate compositions exhibiting improved processability
GEN ELECTRIC137 citations96
US4474999AOct 2, 1984
Phenol compounds, process and polymers
GEN ELECTRIC60 citations96
US4469861ASep 4, 1984
Polycarbonate composition from branched chain dihydric phenol
GEN ELECTRIC99 citations96
US4554309ANov 19, 1985
Polycarbonate from cycloalkylidene tetra alkyl substituted diphenol
GEN ELECTRIC32 citations93
US4438241AMar 20, 1984
Heat resistant polyarylates
GEN ELECTRIC36 citations93
US4415723ANov 15, 1983
Randomly branched aromatic polycarbonate from triphenol
GEN ELECTRIC32 citations93
US4304899ADec 8, 1981
Polycarbonate compositions having improved barrier properties
GEN ELECTRIC43 citations93
US4638027AJan 20, 1987
Polycarbonate exhibiting improved heat resistance from cycloalkylidene diphenol
GEN ELECTRIC24 citations82
US4562242ADec 31, 1985
Branched polycarbonate from carboxy containing diphenol
GEN ELECTRIC23 citations82
US4446285AMay 1, 1984
Rubbery polycarbonates
GEN ELECTRIC26 citations82
US4415725ANov 15, 1983
Aromatic branched polycarbonate from tetraphenol
GEN ELECTRIC22 citations82
US4379910AApr 12, 1983
Flame retardant aromatic polycarbonate compositions made from fluorinated diphenols
GEN ELECTRIC27 citations82
US4277600AJul 7, 1981
Tetraphenolic compounds and polycarbonates containing the same
GEN ELECTRIC20 citations82
US4576996AMar 18, 1986
Polycarbonates exhibiting improved heat resistance
GEN ELECTRIC10 citations74
US4554330ANov 19, 1985
Polyestercarbonates exhibiting improved heat resistance from cycloalkylidene diphenol
GEN ELECTRIC16 citations74
US4547564AOct 15, 1985
Polyester carbonate from branched chain alkylidene dihydric phenol
GEN ELECTRIC8 citations74
US4520187AMay 28, 1985
Polycarbonates and polyester carbonates exhibiting improved heat resistance
GEN ELECTRIC9 citations74
US4448953AMay 15, 1984
Preparation of benzoate ester terminated polycarbonate with aroyl halide
GEN ELECTRIC12 citations74
US4446298AMay 1, 1984
Branched copolycarbonate from triphenol
GEN ELECTRIC10 citations74
US4415724ANov 15, 1983
Branched aromatic polycarbonate from tetraphenol
GEN ELECTRIC11 citations74
US4415722ANov 15, 1983
Branched aromatic polycarbonate from aliphatic polyol
GEN ELECTRIC11 citations74
US4365098ADec 21, 1982
Fluorinated diphenols and method for their preparation
GEN ELECTRIC17 citations74
US4358624ANov 9, 1982
Fluorinated monophenols and diphenols and method for their preparation
GEN ELECTRIC11 citations74
US4349658ASep 14, 1982
Flame retardant aromatic polyester-carbonate copolymer compositions
GEN ELECTRIC17 citations74
US4320234AMar 16, 1982
Process for purifying crude diphenols
GEN ELECTRIC9 citations74
US4242527ADec 30, 1980
Process for purifying crude diphenols
GEN ELECTRIC13 citations74
US4231920ANov 4, 1980
Transparent to translucent flame-retardant polycarbonate composition
GEN ELECTRIC14 citations74
US4182838AJan 8, 1980
Polycarbonate compositions having improved flame retardance and improved water vapor transmission
GEN ELECTRIC9 citations74
US4201878AMay 6, 1980
Process for producing bisphenols
GEN ELECTRIC11 citations73
US4380612AApr 19, 1983
High heat distortion resistant segment ester polycarbonates
GEN ELECTRIC11 citations69
US4663434AMay 5, 1987
Polycarbonates exhibiting improved heat resistance
GEN ELECTRIC6 citations63
US4638036AJan 20, 1987
Polycarbonate exhibiting improved heat resistance from halogenated cycloalkylidene diphenol
GEN ELECTRIC5 citations63
US4620950ANov 4, 1986
Process for preparing aryl sulfone sulfonic acids
GEN ELECTRIC2 citations63
US4535191AAug 13, 1985
Dihydric phenols
GEN ELECTRIC6 citations63
US4477647AOct 16, 1984
Polyarylate resin of thiodiphenols and isophthalic acid or derivatives thereof
GEN ELECTRIC5 citations63
US4467121AAug 21, 1984
Fluorinated diphenols and method for their preparation
GEN ELECTRIC4 citations63
US4463160AJul 31, 1984
Polyarylates exhibiting improved heat resistance
GEN ELECTRIC3 citations63
US4247484AJan 27, 1981
Keto-diphenol compounds
GEN ELECTRIC6 citations63
US4223171ASep 16, 1980
Substituted dichlorovinylidene (diphenols)
GEN ELECTRIC3 citations63
US4163116AJul 31, 1979
Process for producing bisphenols
GEN ELECTRIC4 citations63
US4560808ADec 24, 1985
Process for production of dihydric phenols
GEN ELECTRIC1 citations52
US4463161AJul 31, 1984
Polyarylate compositions
GEN ELECTRIC0 citations52
US4454308AJun 12, 1984
Rubbery polyarylates
GEN ELECTRIC1 citations52