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:
Feb. 04, 2003
Filed:
Dec. 15, 2000
Applicant:
Inventor:
Charles Lee Edwards, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 2/714 ; B01J 2/300 ; C01B 2/500 ; C01B 1/516 ;
U.S. Cl.
CPC ...
B01J 2/714 ; B01J 2/300 ; C01B 2/500 ; C01B 1/516 ;
Abstract
A process to prepare an improved fluid rare earth phosphate catalyst composition useful in preparing alkylene oxide adducts of organic compounds having active hydrogen atoms is provided. The catalyst is prepared by dissolving a rare earth salt in a C -C active hydrogen containing organic compound and then adding phosphoric acid to the organic compound rare earth mixture.
Edwards, Charles. (2003). Process of preparing a fluid rare earth alkoxylation catalyst (U.S. Patent No. 6514898). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6514898
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile