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. 14, 1976
Filed:
Jan. 24, 1975
Applicant:
Inventors:
Moustafa El-Chahawi, Troisdorf, DT;
Uwe Prange, Neiderkassel-Ranzel, DT;
Hermann Richtzenheim, Much-Schwellenbach, DT;
Wilhelm Vogt, Cologne-Sulz, DT;
Assignee:
Dynamit Nobel Aktiengesellschaft, Cologne, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ; 2604 / ;
Abstract
Butyric acid esters of the formula: ##EQU1## wherein each R is alkyl, alkyl having an alkoxy substituent, or cycloalkyl, and the R's are the same. The esters are prepared by contacting an allyl halide with carbon monoxide, an alcohol of the formula ROH wherein R is as above, and an alkali alcoholate of the same alcohol, in the presence of a catalyst for the reaction at a pH of 10-14. The esters are useful as solvents for polymers and as plasticizers.