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:
Dec. 26, 1989
Filed:
Jun. 30, 1988
Applicant:
Inventors:
Johannes A Van Broekhoven, Amsterdam, NL;
Maarten M Geuze, Amsterdam, NL;
James A Salter, Amsterdam, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528392 ;
Abstract
A process for preparing a polyketone wherein sulfidic sulfur and iron carbonyls present in carbon monoxide are removed therefrom before the carbon monoxide is used as feed for the preparation of novel polyketone polymers as well as shaped articles prepared therefrom.