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:
Oct. 19, 1976
Filed:
Feb. 03, 1975
Applicant:
Inventor:
Klaus Prater, Krefeld-Bockum, DT;
Assignee:
Bayer Aktiengesellschaft, , DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603486 ;
Abstract
Colorless low-viscosity diglycidyl esters of cycloaliphatic dicarboxylic acids of low molecular weight and with a high epoxide group content are obtained in substantially quantitative yields by reacting the cycloaliphatic dicarboxylic acids with excess epihalohydrin in the presence of 0.5 to 4 % by weight based on the dicarboxylic acid of secondary and/or tertiary O-alkali phosphate as catalyst at 80.degree. to 115.degree.C, followed by dehydrohalogenation of the 3-halogen-2-hydroxy propyl carboxylic acid esters formed with aqueous alkali.