Inventor
SYLVESTER GERD
DE25 patents
⚠️ This page may combine multiple inventors who share the name “SYLVESTER GERD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
22 patentsUS4242232ADec 30, 1980
Catalyst and its preparation and use for the solution polymerization of conjugated dienes
BAYER AG79 citations95
US4260707AApr 7, 1981
Solution polymerization of conjugated dienes
BAYER AG74 citations94
US5858903AJan 12, 1999
Catalyst, its production and its use for the gas-phase polymerization of conjugated dienes
BAYER AG28 citations92
US4937303AJun 26, 1990
Solution polymerization for the preparation of gel-free ethylene/vinyl acetate copolymers
BAYER AG24 citations89
US6284697B1Sep 4, 2001
Compounds of the rare earths and their use as polymerization catalysts for unsaturated compounds
BAYER AG18 citations81
US4798873AJan 17, 1989
Polyolefinecarboxylic acids, their preparation and their use for preparing polyolefine-polycarbonate block copolymers
BAYER AG16 citations81
US5135988AAug 4, 1992
Process for the preparation of ethylene/vinyl acetate copolymers with reduced tendency to tackiness, new ethylene/vinyl acetate copolymers and their use
BAYER AG20 citations80
US5914377AJun 22, 1999
Method for the production of diene rubbers in the gas phase
BAYER AG12 citations74
US5908904AJun 1, 1999
Catalyst its production and its use for the gas-phase polymerization of conjugated dienes
BAYER AG8 citations74
US6350833B1Feb 26, 2002
Method for the suspension polymerization of conjugated dienes
BAYER AG8 citations73
US6093674AJul 25, 2000
Supported cobalt catalyst, production thereof and use thereof for the polymerization of unsaturated compounds
BAYER AG8 citations73
US4929689AMay 29, 1990
Polyolefinecarboxylic acids, their preparation and their use for preparing polyolefine-polycarbonate block copolymers
BAYER AG9 citations73
US4189558AFeb 19, 1980
Process for the production of butadiene-propylene copolymers
BAYER AG10 citations73
US4145497AMar 20, 1979
Uranium-containing mixed catalysts and their use for the polymerization of olefins
BAYER AG6 citations73
US6706830B2Mar 16, 2004
Copolymerization of conjugated dienes with non-conjugated olefins by means of rare earth catalysts
BAYER AG7 citations68
US5877109AMar 2, 1999
Catalyst for the gas-phase polymerisation of conjugated dienes
BAYER AG12 citations68
US5958820ASep 28, 1999
Gas-phase polymerisation of conjugated dienes in the presence of rare earth allyl compounds
BAYER AG9 citations67
US5298577AMar 29, 1994
Continuous process for the production of ethylene/vinyl ester terpolymers
BAYER AG5 citations59
US5023299AJun 11, 1991
Polyolefinecarboxylic acids, their preparation and their use for preparing polyolefine-polycarbonate block copolymers
BAYER AG3 citations58
US6576727B1Jun 10, 2003
Catalyst system for gas phase polymerization of conjugated dienes
BAYER AG3 citations57
US6344527B1Feb 5, 2002
Method for the production of polydienes with regulated mooney viscosity
BAYER AG0 citations49
US4216121AAug 5, 1980
Catalyst, its preparation and use in the polymerization of butadiene
BAYER AG0 citations41