Inventor
HEROLD FRIEDRICH
DE8 patents
⚠️ This page may combine multiple inventors who share the name “HEROLD FRIEDRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST AG
7 patentsUS4847354AJul 11, 1989
Shaped structure of aromatic copolyamide from aromatic diamine mixture
HOECHST AG23 citations80
US5536408AJul 16, 1996
Hydrophilic, asymmetric, chemically-resistant polyaramide membrane
HOECHST AG16 citations72
US5039779AAug 13, 1991
Thermoplastically processible aromatic polyetheramide from 2,2-bis(4'-amino phenoxy phenyl) propane and terephthalic acid
HOECHST AG7 citations71
US4891135AJan 2, 1990
Macroporous, asymmetric, hydrophilic polyaramide membrane
HOECHST AG7 citations71
US4966955AOct 30, 1990
Aromatic copolyether amide which can be processed as a thermoplastic, process for its preparation, and its use for the production of molding
HOECHST AG4 citations60
US4931533AJun 5, 1990
Filament-, fiber- or film-forming aromatic copolyamide from aromatic diamine mixture
HOECHST AG5 citations60
US4981943AJan 1, 1991
Film of aromatic copolyamide from bis(aminophenoxy) benzene
HOECHST AG2 citations59