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:
Sep. 29, 1987
Filed:
Mar. 01, 1985
Applicant:
Inventors:
Georg Seitz, Darmstadt, DE;
Rainer Wernicke, Neu-Isenburg, DE;
Assignee:
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536 83 ; 210635 ; 2105021 ; 502439 ; 536 69 ; 536 73 ; 536 74 ; 536 76 ;
Abstract
The preparation of microcrystalline triacetylcellulose by acid-catalyzed acetylation of microcrystalline cellulose, perfluoroalkanesulfonic acids with 1 to 8 carbon atoms are used as the catalyst, resulting in a non-hazardous process and high yields of exceptionally high purity product, the latter being particularly suitable for chromatographic purposes, in particular for the chromatographic resolution of racemates.
Seitz, Georg. (1987). Preparation of microcrystalline triacetylcellulose (U.S. Patent No. 4697007). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4697007
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile