Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Preparation of homopolymers of ethene and copolymers of ethene with higher .alpha.-monoolefins using a Ziegler catalyst system

Preparation of homopolymers of ethene and copolymers of ethene with higher .alpha.-monoolefins using a Ziegler catalyst system

US Patent 4831090 · Granted May 16, 1989

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Polyethylene for injection moldings2015
Process for feeding a catalyst in a polymerization reactor2013
Supported chromium catalyst and its use for preparing homopolymers and copolymer2010
Catalyst comprising chromium and zirconium for the polymerization and/or copolym2010
Process for preparing a chromium-based catalyst for the polymerization and/or co2010
Process for preparing a support for olefin polymerization catalysts2009
Solid catalytic component and catalytic system of the ziegler-natta type, proces2007
Method for producing Phillips catalysts for polymerizing olefins with better pro2004
Optimized method for the production of catalyst supports based on silica gel and2003
Method for producing supported chrome catalysts and the use thereof for the poly2003
Preparation of polyolefins with low extractables contents2003
Catalyst systems of the Ziegler-Natta type2003