P

Inventor

PAKULL RALF

DE15 patents

Patents

15 patents
US5410014AApr 25, 1995

Method of preparing aliphatic-aromatic polycarbonates

BAYER AG61 citations96
US5780690AJul 14, 1998

Bisphenol synthesis on modified ion-exchange resins using specially purified carbonyl compounds

BAYER AG32 citations92
US5302774AApr 12, 1994

Process for the production of bisphenols

BAYER AG39 citations92
US5102971AApr 7, 1992

Soluble polyaromatic compounds

BAYER AG34 citations92
US5420241AMay 30, 1995

Process for the purification of polycarbonate and polyester carbonate solutions

BAYER AG9 citations74
US4985532AJan 15, 1991

Thermotropic polyesters, a process for their production and their use for the production of moldings, filaments and films

BAYER AG17 citations74
US4631333ADec 23, 1986

Process for the preparation of polyimide esters of trimellitic acid

BAYER AG7 citations73
US4861857AAug 29, 1989

Thermotropic polyesterimide from N-carboxyalkylene trimellitimide having excellent processibility, a process for their production and their use for the production of moldings, filaments, fibers and films

BAYER AG16 citations72
US5191001AMar 2, 1993

Process for the production of solventless polycarbonate

BAYER AG8 citations71
US5408027AApr 18, 1995

Process for the production of aliphatic-aromatic polycarbonates

BAYER AG4 citations62
US5357028AOct 18, 1994

Method of preparing polycarbonates and polyester carbonates

BAYER AG6 citations62
US4931534AJun 5, 1990

Thermotropic aromatic polyesters, a process for their production and their use for the production of moldings, filaments, fibers and films

BAYER AG6 citations61
US5084550AJan 28, 1992

Copolycarbonate from mixture of polyarylene diol

BAYER AG4 citations59
USRE36432EDec 7, 1999

Process for the purification of polycarbonate and polyester carbonate solutions

BAYER AG0 citations52
US5134219AJul 28, 1992

Stiff-chain polyheterocycles having improved solubility, a process for their production and their use

BAYER AG0 citations50