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:
Mar. 27, 1979
Filed:
Aug. 26, 1977
Applicant:
Inventors:
Gunter Scheffel, Burghausen, Salzach, DE;
Reinhold Obermeier, Muhldorf, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568607 ; 568608 ; 568609 ; 568610 ; 568611 ; 568613 ; 568614 ; 252364 ; 252 73 ; 252184 ; 2603406 ;
Abstract
Oxalkylene groups of oxacycloalkanes are inserted into chain-type ethers by reacting the latter with the oxacycloalkanes in the presence of Lewis acids. The ethers or ether mixtures obtained can be used for many purposes owing to their hydrophilic-hydrophobic character, for example as absorption and extraction agents, as solvents and as additives to hydraulic fluids.