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:
Nov. 19, 1991
Filed:
Jan. 30, 1990
Applicant:
Inventors:
Josephus H Van Deursen, Amsterdam, NL;
Johannes A Van Doorn, Amsterdam, NL;
Eit Drent, Amsterdam, NL;
Pui K Wong, Katy, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528392 ;
Abstract
When a linear alternating polymer of carbon monoxide and a cyclopentene compound is produced in the presence of a catalyst composition comprising a compound of palladium, and anion of a non-hydrohalogenic acid having a pKa below 2 and a bidentate ligand, an improved process results when an aromatic meta-dinitro compound is provided to the catalyst composition mixture.