The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2005
Filed:
Oct. 15, 2002
Larry Funderburk Rhodes, Silver Lake, OH (US);
Andrew Bell, Lakewood, OH (US);
Ramakrishna Ravikiran, Cleveland Heights, OH (US);
John C. Fondran, Broadview Heights, OH (US);
Saikumar Jayaraman, Chandler, AZ (US);
Brian Leslie Goodall, Ambler, PA (US);
Richard A. Mimna, St. Sulpice, CH;
John-henry Lipian, Medina, OH (US);
Larry Funderburk Rhodes, Silver Lake, OH (US);
Andrew Bell, Lakewood, OH (US);
Ramakrishna Ravikiran, Cleveland Heights, OH (US);
John C. Fondran, Broadview Heights, OH (US);
Saikumar Jayaraman, Chandler, AZ (US);
Brian Leslie Goodall, Ambler, PA (US);
Richard A. Mimna, St. Sulpice, CH;
John-Henry Lipian, Medina, OH (US);
Promerus, LLC, Brecksville, OH (US);
Abstract
Methods for the addition polymerization of cycloolefins using a cationic Group 10 metal complex and a weakly coordinating anion of the formula:[(R')M(L′)(L″)][WCA]wherein [(R′)M(L′)(L″)] is a cation complex where M represents a Group 10 transition metal; R′ represents an anionic hydrocarbyl containing ligand; L′ represents a Group 15 neutral electron donor ligand; L″ represents a labile neutral electron donor ligand; x is 1 or 2; and y is 0, 1, 2, or 3; and z is 0 or 1, wherein the sum of x, y, and z is 4; and [WCA] represents a weakly coordinating counteranion complex; and b and d are numbers representing the number of times the cation complex and weakly coordinating counteranion complex are taken to balance the electronic charge on the overall catalyst complex.